Communications Engineering Lab

Nutzungshinweis

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Veröffentlichungen

2021

Zeitschriftenbeiträge

A. Buchberger, C. Häger, H. D. Pfister, A. Graell i Amat and L. Schmalen, "Pruning and Quantizing Neural Belief Propagation Decoders," IEEE J. Sel. Areas Commun., 2021, https://arxiv.org/abs/2011.13594

Konferenzbeiträge

A. Buchberger, C. Häger, H. D. Pfister, A. Graell i Amat and L. Schmalen, "Learned Decimation for Neural Belief Propagation Decoders," Proc. Int. Conf. Acoustics, Speech, and Signal Process.(ICASSP), Toronto, Canada, Jun. 2021, https://arxiv.org/abs/2011.02161

2020

Zeitschriftenbeiträge

F. Buchali, V. Lauinger, M. Chagnon, K. Schuh and V. Aref, "CMOS DAC supported 1.1 Tb/s/lambda DWDM transmission at 9.8 bit/s/Hz over DCI distances," J. Lightw. Technol., Oct. 2020

S. Le, K. Schuh, F. Buchali, X. Du, M. Grözing, M. Berroth, L. Schmalen and H. Bülow, "Single Sideband Transmission Employing a 1-to-4 ADC Frontend and Parallel Digitization," J. Lightw. Technol., vol. 38, no. 12, pp. 3125–3134, Jun. 2020

A. Teixeira, D. Lavery, E. Ciaramella, L. Schmalen, N. Iiyama, R. Ferreira and S. Randel, "DSP Enabled Optical Detection Techniques for PON," J. Lightw. Technol., vol. 38, no. 3, pp. 684–695, Feb. 2020

S. Le, K. Schuh, R. Dischler, F. Buchali, L. Schmalen and H. Bülow, "Beyond 400 Gb/s Direct Detection Over 80 km for Data Center Interconnect Applications," J. Lightw. Technol., vol. 38, no. 2, pp. 538–545, Jan. 2020

Buchkapitel

A. Graell i Amat and L. Schmalen, "Forward error correction for optical transponders," in B. Mukherjee, I. Tomkos, M. Tornatore, P. Winzer and Y. Zhao (eds.), Handbook of Optical Networks, pp. 177–258, Springer, Oct. 2020

Konferenzbeiträge

T. Eriksson, R. Luis, G. Rademacher, B. Puttnam, K. Gümüs, L. Schmalen, A. Alvarado, H. Furukawa, N. Wada, T. Hirano, M. Sasaki and M. Takeoka, "Challenges in coding, DSP and parallel operation of quantum key distribution and coherent data transmission," Proc. Eur. Conf. Opt. Commun. (ECOC), Brussels, Belgium, Dec. 2020

B. Karanov, P. Bayvel and L. Schmalen, "End-to-end learning in optical fiber communications: concept and transceiver design," Proc. Eur. Conf. Opt. Commun. (ECOC), Brussels, Belgium, Dec. 2020

B. Karanov, V. Oliari, M. Chagnon, G. Liga, A. Alvarado, V. Aref, D. Lavery, P. Bayvel and L. Schmalen, "End-to-end learning in optical fiber communications: experimental demonstration and future trends," Proc. Eur. Conf. Opt. Commun. (ECOC), Brussels, Belgium, Dec. 2020

B. Karanov, M. Chagnon, V. Aref, F. Ferreira, D. Lavery, P. Bayvel and L. Schmalen, "Experimental Investigation of Deep Learning for Digital Signal Processing in Short Reach Optical Fiber Communications," Proc. IEEE Workshop Signal Process. Syst. (SiPS), Coimbra, Portugal, Oct. 2020, https://arxiv.org/abs/2005.08790

B. Karanov, M. Chagnon, V. Aref, D. Lavery, P. Bayvel and L. Schmalen, "Optical Fiber Communication Systems Based on End-to-End Deep Learning," IEEE Photonics Conference (IPC), Vancouver, Canada, Sep. 2020, https://arxiv.org/abs/2005.08785

K. Gümüs, A. Alvarado, B. Chen, C. Häger and E. Agrell, "End-to-End Learning of Geometrical Shaping Maximizing Generalized Mutual Information," Proc. Opt. Fiber Commun. Conf. (OFC), San Diego, CA, USA, Mar. 2020, https://arxiv.org/abs/1912.05638

F. Buchali, V. Lauinger, M. Chagnon, K. Schuh and V. Aref, "1.1 Tb/s/lambda at 9.8 bit/s/Hz DWDM transmission over DCI distances supported by CMOS DACs," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th3E–2, San Diego, CA, USA, Mar. 2020

B. Karanov, M. Chagnon, V. Aref, D. Lavery, P. Bayvel and L. Schmalen, "Concept and experimental demonstration of optical IM/DD end-to-end system optimization using a generative model," Proc. Opt. Fiber Commun. Conf. (OFC), pp. 1–3, San Diego, CA, USA, Mar. 2020, https://arxiv.org/abs/1912.05146

T. Eriksson, R. Luis, K. Gümüs, G. Rademacher, B. Puttnam, H. Furukawa, N. Wada, Y. Awaji, A. Alvarado, M. Sasaki and M. Takeoka, "Digital Self-Coherent Continuous Variable Quantum Key Distribution System," Proc. Opt. Fiber Commun. Conf. (OFC), pp. T3D-5, San Diego, CA, USA, Mar. 2020

A. Buchberger, C. Häger, H. Pfister, L. Schmalen and A. Graell i Amat, "Pruning Neural Belief Propagation Decoders," Proc. IEEE Int. Symp. Inform. Theory (ISIT), pp. 338–342, Los Angeles, CA, USA, 2020, https://arxiv.org/abs/2001.07464

2019

Zeitschriftenbeiträge

A. Elkelesh, M. Ebada, S. Cammerer, L. Schmalen and S. ten Brink, "Decoder-in-the-Loop: Genetic Optimization-based LDPC Code Design," IEEE Access, pp. 141161–141170, Oct. 2019, https://arxiv.org/abs/1903.03128

B. Karanov, D. Lavery, P. Bayvel and L. Schmalen, "End-to-end optimized transmission over dispersive intensity-modulated channels using bidirectional recurrent neural networks," Optics Express, vol. 27, no. 14, pp. 19650–19663, Jul. 2019, https://arxiv.org/abs/1901.08570

F. Jondral, "Funktechnik in der Fabrik," ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb, vol. 114, no. 1-2, pp. 57–61, 2019

Konferenzbeiträge

B. Karanov, G. Liga, V. Aref, D. Lavery, P. Bayvel and L. Schmalen, "Deep learning for communication over dispersive nonlinear channels: performance and comparison with classical digital signal processing," Proc. Allerton Annu. Conf. Commun. Control Comp., pp. 192–199, Monticello, IL, USA, Nov. 2019, https://arxiv.org/abs/1910.01028

S. Le, K. Schuh, F. Buchali, X. Du, M. Grözing, M. Berroth, L. Schmalen and H. Bülow, "16x200 GBPS virtual carrier assisted DD transmission over 80 km with only 14 GHz of digitizer bandwidth," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–4, Dublin, Ireland, Sep. 2019

F. Buchali, M. Chagnon, K. Schuh and V. Lauinger, "Beyond 100 GBaud transmission supported by a 120 GSa/s CMOS digital to analog converter," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–4, Dublin, Ireland, Sep. 2019

B. Bloessl, M. Müller and M. Hollick, "Benchmarking and Profiling the GNURadio Scheduler," Proc. GNU Radio Conference, Sep. 2019
[ Available here ]

L. Schmalen and V. Aref, "Spatially Coupled LDPC Codes with Non-uniform Coupling for Improved Decoding Speed," Proc. IEEE Inform. Theory Workshop (ITW), pp. 1–5, Visby, Sweden, Aug. 2019, https://arxiv.org/abs/1904.07026

S. Le, K. Schuh, R. Dischler, F. Buchali, L. Schmalen and H. Bülow, "5x510 Gbps single-polarization direct-detection WDM transmission over 80 km of SSMF," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Tu2B–1, Mar. 2019

F. Wunsch, D. Weber, H. Jäkel and F. Jondral, "Experimental Evaluation of the Long-Range MIMO Outdoor Channel at 2.4 GHz," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1–5, 2019

Andere

F. León and H. Jäkel, Signale und Systeme, 7 ed. Walter de Gruyter GmbH & Co KG, 2019

2018

Zeitschriftenbeiträge

B. Karanov, M. Chagnon, F. Thouin, T. Eriksson, H. Bülow, D. Lavery, P. Bayvel and L. Schmalen, "End-to-end Deep Learning of Optical Fiber Communications," J. Lightw. Technol., vol. 36, no. 20, pp. 4843–4855, Oct. 2018, https://arxiv.org/abs/1804.04097

A. Buchberger, A. i Amat, V. Aref and L. Schmalen, "Probabilistic eigenvalue shaping for nonlinear Fourier transform transmission," J. Lightw. Technol., vol. 36, no. 20, pp. 4799–4807, Oct. 2018, https://arxiv.org/abs/1712.08467

V. Aref, N. Rengaswamy and L. Schmalen, "Finite-length analysis of spatially-coupled regular LDPC ensembles on burst-erasure channels," IEEE Trans. Inf. Theory, vol. 64, no. 5, pp. 3431–3449, May. 2018, https://arxiv.org/abs/1611.08267

I. de Jauregui Ruiz, A. Ghazisaeidi, O. Sab, P. Plantady, A. Calsat, S. Dubost, L. Schmalen, V. Letellier and J. Renaudier, "25.4-Tb/s transmission over transpacific distances using truncated probabilistically shaped PDM-64QAM," J. Lightw. Technol., vol. 36, no. 6, pp. 1354–1361, Mar. 2018

H. Bülow, V. Aref and L. Schmalen, "Modulation on discrete nonlinear spectrum: Perturbation sensitivity and achievable rates," IEEE Photon. Technol. Lett., vol. 30, no. 5, pp. 423–426, Mar. 2018

J. Cho, X. Chen, S. Chandrasekhar, G. Raybon, R. Dar, L. Schmalen, E. Burrows, A. Adamiecki, S. Corteselli, Y. Pan, D. Correa, B. McKay, S. Zsigmond, P. Winzer and S. Grubb, "Trans-atlantic field trial using high spectral efficiency probabilistically shaped 64-QAM and single-carrier real-time 250-Gb/s 16-QAM," J. Lightw. Technol., vol. 36, no. 1, pp. 103–113, Jan. 2018

F. Jondral, "White Gaussian Noise-Models for Engineers," Frequenz, vol. 72, no. 5-6, pp. 293–299, 2018

Konferenzbeiträge

K. Klaiber, S. Cammerer, L. Schmalen and S. ten Brink, "Avoiding burst-like error patterns in windowed decoding of spatially coupled LDPC codes," Proc. Int. Symp. Turbo Codes and Iterative Inform. Process. (ISTC), pp. 1–5, Hong Kong, SAR China, Dec. 2018, https://arxiv.org/abs/1810.01137

L. Schmalen, "Performance Metrics for Communication Systems with Forward Error Correction," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Rome, Italy, Sep. 2018

M. Chagnon, B. Karanov and L. Schmalen, "Experimental demonstration of a dispersion tolerant end-to-end deep learning-based IM-DD transmission system," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Rome, Italy, Sep. 2018

F. Wunsch, M. Ströer, M. Müller, H. Jäkel and F. Jondral, "LPWAN Applications in the 2.4 GHz Band: A Viable Choice?," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, Chicago, IL, USA, Aug. 2018

M. Dia, V. Aref and L. Schmalen, "A compressed sensing approach for distribution matching," Proc. IEEE Int. Symp. Inform. Theory (ISIT), pp. 1266–1270, Vail, CO, USA, Jun. 2018, https://arxiv.org/abs/1804.00602

F. Buchali, Q. Hu, M. Chagnon, K. Schuh, L. Schmalen and S. Makovejs, "Flexible Transmission Enabled by Novel M2-QAM Formats with Record Distance-Spectral Efficiency Tuneability," Proc. Opt. Fiber Commun. Conf. (OFC), pp. W2A–54, San Diego, CA, USA, Mar. 2018

L. Schmalen, "Probabilistic constellation shaping: challenges and opportunities for forward error correction," Proc. Opt. Fiber Commun. Conf. (OFC), pp. 1–3, San Diego, CA, USA, Mar. 2018

F. Wunsch, H. Jäkel and F. Jondral, "A low-complexity air interface with transmit diversity for low power wide area networks," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1–5, 2018

F. Wunsch, H. Jäkel and F. Jondral, "Bringing Transmit Antenna Diversity to LPWANs: An Experimental Testbed Implementation," Proc. GNU Radio Conference, 2018

Andere

O. Braz, A. Dussmann, L. Tarlazzi, T. Haustein, T. Wirth, D. Wieruch, F. Jondral and H. Jäkel, "Wireless communications network using frequency conversion of MIMO signals," US Patent, no. 10,097,257, Oct. 2018

2017

Zeitschriftenbeiträge

W. Lautenschlaeger, N. Benzaoui, F. Buchali, L. Dembeck, R. Dischler, B. Franz, U. Gebhard, J. Milbrandt, Y. Pointurier, D. Roesener, L. Schmalen and A. Leven, "Optical Ethernet—Flexible Optical Metro Networks," J. Lightw. Technol., vol. 35, no. 12, pp. 2346–2357, Jun. 2017

A. Ghazisaeidi, I. de Jauregui Ruiz, R. Rios-Müller, L. Schmalen, P. Tran, P. Brindel, A. Meseguer, Q. Hu, F. Buchali, G. Charlet and J. Renaudier, "Advanced C+L-band transoceanic transmission systems based on probabilistically shaped PDM-64QAM," J. Lightw. Technol., vol. 35, no. 7, pp. 1291–1299, Apr. 2017

W. Idler, F. Buchali, L. Schmalen, E. Lach, R. Braun, G. Böcherer, P. Schulte and F. Steiner, "Field trial of a 1 Tb/s super-channel network using probabilistically shaped constellations," J. Lightw. Technol., vol. 35, no. 8, pp. 1399–1406, Apr. 2017

L. Schmalen, A. Alvarado and R. Rios-Müller, "Performance prediction of nonbinary forward error correction in optical transmission experiments," J. Lightw. Technol., vol. 35, no. 4, pp. 1015–1027, Feb. 2017, https://arxiv.org/abs/1606.00755

F. Engels, P. Heidenreich, A. Zoubir, F. Jondral and M. Wintermantel, "Advances in automotive radar: A framework on computationally efficient high-resolution frequency estimation," IEEE Signal Process. Mag., vol. 34, no. 2, pp. 36–46, 2017

Buchkapitel

A. Kaushik, S. Sharma, S. Chatzinotas, B. Ottersten and F. Jondral, "Modelling and Performance Analysis of Cognitive Radio Systems from a Deployment Perspective," in W. Zhang (eds.), Handbook of Cognitive Radio, Springer, 2017

Konferenzbeiträge

T. Eriksson, M. Chagnon, F. Buchali, K. Schuh, S. ten Brink and L. Schmalen, "56 Gbaud probabilistically shaped PAM8 for data center interconnects," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Gothenburg, Sweden, Sep. 2017

L. Schmalen, T. Eriksson, F. Buchali, R. Dischler and U. Gebhard, "Distributed transmission and spatially coupled forward error correction in regenerative multipoint-to-point networks," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Gothenburg, Sweden, Sep. 2017

F. Buchali, W. Idler, R. Dischler, T. Eriksson and L. Schmalen, "Spectrally efficient probabilistically shaped square 64QAM to 256 QAM," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Gothenburg, Sweden, Sep. 2017

J. Cho, L. Schmalen and P. Winzer, "Normalized generalized mutual information as a forward error correction threshold for probabilistically shaped QAM," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Gothenburg, Sweden, Sep. 2017

Q. Hu, F. Buchali, L. Schmalen, W. Idler, R. Dischler, V. Aref and H. Bülow, "Inter-channel crosstalk compensation for time-frequency packing systems," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Gothenburg, Sweden, Sep. 2017

Q. Hu, R. Dischler, K. Schuh, H. Bülow, L. Schmalen and F. Buchali, "Beating Bandwidth Limitation for High-speed PAM-4 Transmission Based on Turbo Equalizer," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Gothenburg, Sweden, Sep. 2017

O. Sab, I. de Jauregui Ruiz, A. Ghazisaeidi, P. Plantady, A. Calsat, S. Dubost, L. Schmalen, J. Renaudier and V. Letellier, "Near capacity 24.6 Tb/s transmission over 10,285 km straight line testbed at 5.9 b/s/Hz spectral efficiency using TPCS-64QAM and C-Band EDFA-Only," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Gothenburg, Sweden, Sep. 2017

Q. Hu, F. Buchali, L. Schmalen and H. Bülow, "Experimental demonstration of probabilistically shaped QAM," Advanced Photonic Congress: Signal Processing in Photonic Communications, pp. SpM2F–6, New Orleans, LA, USA, Jul. 2017

A. Alvarado, G. Liga, T. Fehenberger and L. Schmalen, "On the design of coded modulation for fiber optical communications," Advanced Photonic Congress: Signal Processing in Photonic Communications, pp. SpM4F–2, New Orleans, LA, USA, Jul. 2017

L. Schmalen, V. Aref and F. Jardel, "Non-uniformly coupled LDPC codes: Better thresholds, smaller rate-loss, and less complexity," Proc. IEEE Int. Symp. Inform. Theory (ISIT), pp. 376–380, Aachen, Germany, Jun. 2017, https://arxiv.org/abs/1701.07629

J. Cho, X. Chen, S. Chandrasekhar, G. Raybon, R. Dar, L. Schmalen, E. Burrows, A. Adamiecki, S. Corteselli, Y. Pan, D. Correa, B. McKay, S. Zsigmond, P. Winzer and S. Grubb, "Trans-atlantic field trial using probabilistically shaped 64-QAM at high spectral efficiencies and single-carrier real-time 250-Gb/s 16-QAM," Proc. Opt. Fiber Commun. Conf. (OFC), pp. 1–3, Los Angeles, CA, USA, Mar. 2017

K. Schuh, F. Buchali, W. Idler, T. Eriksson, L. Schmalen, W. Templ, L. Altenhain, U. Dümler, R. Schmid, M. Möller and K. Engenhardt, "Single carrier 1.2 Tbit/s transmission over 300 km with PM-64 QAM at 100 GBaud," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th5B–5, Los Angeles, CA, USA, Mar. 2017

T. Eriksson, F. Buchali and L. Schmalen, "Nonlinear mitigation using probabilistically shaped real-valued modulation formats," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th2A–61, Los Angeles, CA, USA, Mar. 2017

T. Eriksson, F. Buchali, W. Idler, L. Schmalen and G. Charlet, "Electronically subcarrier multiplexed PM-32QAM with optimized FEC overheads," Proc. Opt. Fiber Commun. Conf. (OFC), pp. W3J–4, Los Angeles, CA, USA, Mar. 2017

F. Buchali, W. Idler, L. Schmalen and Q. Hu, "Flexible optical transmission close to the Shannon limit by probabilistically shaped QAM," Proc. Opt. Fiber Commun. Conf. (OFC), pp. M3C–3, Los Angeles, CA, USA, Mar. 2017

Q. Hu, F. Buchali, L. Schmalen, W. Idler, R. Dischler, V. Aref and H. Bülow, "Transmit filter optimization for improved performance of time-frequency packing systems," Proc. Opt. Fiber Commun. Conf. (OFC), pp. 1–3, Los Angeles, CA, USA, Mar. 2017

G. Charlet, A. Ghazisaeidi, R. Muller, J. Renaudier and L. Schmalen, "Signal processing for spectrally efficient systems," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th4C–5, Los Angeles, CA, USA, Mar. 2017

L. Schmalen, L. Zhang and U. Gebhard, "Distributed rate-adaptive staircase codes for connectionless optical metro networks," Proc. Opt. Fiber Commun. Conf. (OFC), pp. W1J–2, Los Angeles, CA, USA, Mar. 2017

L. Zhang and L. Schmalen, "Feed-forward staircase codes," Proc. Int. ITG Conf. on Source and Channel Coding (SCC), pp. 1–6, Hamburg, Germany, Feb. 2017, https://arxiv.org/abs/1604.06574

J. Demel, C. Bockelmann, A. Rode, S. Koslowski and F. Jondral, "An optimized GFDM software implementation for future Cloud-RAN and field tests," Proc. GNU Radio Conference, 2017

J. Fink, H. Guissouma and F. Jondral, "Feature-based gesture classification by means of high resolution radar measurements," Proc. International Radar Symposium (IRS), 2017

F. Wunsch, S. Koslowski, S. Müller, N. Cuervo and F. Jondral, "A cognitive overlay system based on FBMC," Proc. IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), pp. 1–2, 2017

F. Wunsch, K. Maier, H. Jäkel and F. Jondral, "Implementation and Performance Evaluation of IEEE 802.15. 4 LECIM DSSS PHY at 2.4 GHz," Proc. GNU Radio Conference, pp. 6–6, 2017

Andere

O. Braz, A. Dussmann, L. Tarlazzi, T. Haustein, T. Wirth, D. Wieruch, F. Jondral and H. Jäkel, "Wireless communication network using frequency conversion of MIMO signals," US Patent, no. 9,686,007, Jun. 2017

2016

Zeitschriftenbeiträge

F. Buchali, F. Steiner, G. Böcherer, L. Schmalen, P. Schulte and W. Idler, "Rate adaptation and reach increase by probabilistically shaped 64-QAM: An experimental demonstration," J. Lightw. Technol., vol. 34, no. 7, pp. 1599–1609, Apr. 2016

A. Ghazisaeidi, I. de Jauregui Ruiz, L. Schmalen, P. Tran, C. Simonneau, E. Awwad, B. Uscumlic, P. Brindel and G. Charlet, "Submarine transmission systems using digital nonlinear compensation and adaptive rate forward error correction," J. Lightw. Technol., vol. 34, no. 8, pp. 1886–1895, Apr. 2016

F. Jondral, "Industrie 4.0 - Funk in der Fabrik," ZWF Zeitschrift fürr wirtschaftlichen Fabrikbetrieb, vol. 111, no. 1-2, pp. 59–62, 2016

A. Kaushik, S. Sharma, S. Chatzinotas, B. Ottersten and F. Jondral, "On the performance analysis of underlay cognitive radio systems: A deployment perspective," IEEE Trans. on Cogn. Commun. Netw., vol. 2, no. 3, pp. 273–287, 2016

T. Haustein, S. Stanczak, A. Wolisz, F. Jondral, H. Schotten, R. Kraemer, M. Mück, H. Mennenga and P. Bender, "Cognitive Wireless Communications–A paradigm shift in dealing with radio resources as a prerequisite for the wireless network of the future–An overview on the topic of cognitive wireless technologies," Frequenz, vol. 70, no. 7-8, pp. 281–288, 2016

A. Kaushik, S. Sharma, S. Chatzinotas, B. Ottersten and F. Jondral, "Sensing-throughput tradeoff for interweave cognitive radio system: A deployment-centric viewpoint," IEEE Trans. Wireless Commun., vol. 15, no. 5, pp. 3690–3702, 2016

Buchkapitel

L. Schmalen, S. Brink and A. Leven, "Advances in detection and error correction for coherent optical communications: Regular, irregular, and spatially coupled LDPC code designs," in X. Zhou and C. Xie (eds.), Enabling Technologies for High Spectral Efficiency Coherent Optical Communication Networks, John Wiley & Sons, Inc., 2016, https://arxiv.org/abs/1704.04618

R. Tanbourgi, H. Jäkel and F. Jondral, "Cooperative Diversity Under Spatial Interference Correlation in Wireless Networks," in W. Utschik (eds.), Communications in Interference Limited Networks, pp. 367–391, Springer, 2016

Konferenzbeiträge

F. Buchali, W. Idler, K. Schuh, L. Schmalen, T. Eriksson, G. Böcherer, P. Schulte and F. Steiner, "Study of electrical subband multiplexing at 54 GHz modulation bandwidth for 16QAM and probabilistically shaped 64QAM," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

W. Idler, F. Buchali, L. Schmalen, E. Lach, R. Braun, G. Boecherer, P. Schulte and F. Steiner, "Field demonstration of 1 Tbit/s super-channel network using probabilistically shaped constellations," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

R. Dischler, F. Buchali and L. Schmalen, "Embedded in-band DQPSK signaling within n-QAM data transmission," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

F. Buchali, W. Idler, L. Schmalen, G. Böcherer, P. Schulte and F. Steiner, "Probabilistically shaped QAM for independent reach, spectral efficiency and bit-rate adaptation," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

S. Cammerer, L. Schmalen, V. Aref and S. ten Brink, "Wave-like decoding of tail-biting spatially coupled LDPC codes through iterative demapping," Proc. Int. Symp. Turbo Codes and Iterative Inform. Process. (ISTC), pp. 121–125, Brest, France, Sep. 2016, https://arxiv.org/abs/1704.05408

V. Aref, N. Rengaswamy and L. Schmalen, "Spatially coupled LDPC codes affected by a single random burst of erasures," Proc. Int. Symp. Turbo Codes and Iterative Inform. Process. (ISTC), pp. 166–170, Brest, France, Sep. 2016, https://arxiv.org/abs/1607.00918

L. Schmalen, D. Suikat, V. Aref and D. Roesener, "On the design of capacity-approaching unit-memory spatially coupled LDPC codes for optical communications," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

L. Schmalen and F. Buchali, "Implicit constellation shaping in regenerative optical networks," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

Q. Hu, F. Buchali, L. Schmalen, W. Idler, R. Dischler and H. Bülow, "Improved Flexibility in Rate and Reach by Time-Frequency Packed QPSK," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

A. Ghazisaeidi, I. de Jauregui Ruiz, R. Rios-Muller, L. Schmalen, P. Tran, P. Brindel, A. Meseguer, Q. Hu, F. Buchali, G. Charlet and J. Renaudier, "65Tb/s transoceanic transmission using probabilistically-shaped PDM-64QAM," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Düsseldorf, Germany, Sep. 2016

S. Cammerer, V. Aref, L. Schmalen and S. ten Brink, "Triggering wave-like convergence of tail-biting spatially coupled LDPC codes," Conf. Inform. Sciences Syst. (CISS), pp. 93–98, Princeton, NJ, USA, Mar. 2016, https://arxiv.org/abs/1507.01970

R. Rios-Müller, J. Renaudier, L. Schmalen and G. Charlet, "Practical approaches to 400G single-carrier submarine transmission," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th1B–4, Anaheim, CA, USA, Mar. 2016

N. Rengaswamy, L. Schmalen and V. Aref, "On the burst erasure correctability of spatially coupled LDPC ensembles," Proc. Int. Zurich Seminar Commun. (ZSC), pp. 155–159, Zurich, Switzerland, Mar. 2016

B. Nuss, J. Fink and F. Jondral, "Cost efficient frequency hopping radar waveform for range and Doppler estimation," Proc. International Radar Symposium (IRS), 2016

A. Kaushik, S. Sharma, S. Chatzinotas, B. Ottersten and F. Jondral, "Performance analysis of hybrid cognitive radio systems with imperfect channel knowledge," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–7, 2016

H. Becker, A. Kaushik, S. Sharma, S. Chatzinotas and F. Jondral, "Experimental study of an underlay cognitive radio system: Model validation and demonstration," Proc. International Conference on Cognitive Radio Oriented Wireless Networks, pp. 511–523, 2016

L. Schmalen, A. Alvarado and R. Rios-Müller, "Predicting the performance of nonbinary forward error correction in optical transmission experiments," Proc. Opt. Fiber Commun. Conf. (OFC), pp. 1–3, Anaheim, CA, USA, 2016

2015

Zeitschriftenbeiträge

C. Pan, H. Bülow, W. Idler, L. Schmalen and F. Kschischang, "Optical Nonlinear Phase Noise Compensation for 9x32-Gbaud PolDM-16 QAM Transmission Using a Code-Aided Expectation-Maximization Algorithm," J. Lightw. Technol., vol. 33, no. 17, pp. 3679–3686, Sep. 2015

A. Ghazisaeidi, L. Schmalen, I. de Jauregui Ruiz, P. Tran, C. Simonneau, P. Brindel and G. Charlet, "Transoceanic transmission systems using adaptive multirate FECs," J. Lightw. Technol., vol. 33, no. 7, pp. 1479–1487, Apr. 2015

J. Renaudier, R. Rios-Müller, P. Tran, P. Schmalen and G. Charlet, "Spectrally efficient 1-Tb/s transceivers for long-haul optical systems," J. Lightw. Technol., vol. 33, no. 7, pp. 1452–1458, Apr. 2015

R. Rios-Müller, J. Renaudier, P. Brindel, A. Ghazisaeidi, I. Fernandez, P. Tran, C. Simonneau, L. Schmalen and G. Charlet, "Spectrally-efficient 400-Gb/s single carrier transport over 7 200 km," J. Lightw. Technol., vol. 33, no. 7, pp. 1402–1407, Apr. 2015

L. Schmalen, V. Aref, J. Cho, D. Suikat, D. Rösener and A. Leven, "Spatially coupled soft-decision error correction for future lightwave systems," J. Lightw. Technol., vol. 33, no. 5, pp. 1109–1116, Mar. 2015

M. Beermann, E. Monzo, L. Schmalen and P. Vary, "GPU accelerated belief propagation decoding of non-binary LDPC codes with parallel and sequential scheduling," Journal of Signal Processing Systems, vol. 78, no. 1, pp. 21–34, Jan. 2015

F. Jondral, "Bit Stream Recognition and Analysis in Cognitive Radio," Frequenz, vol. 69, no. 7-8, pp. 349–356, 2015

R. Tanbourgi, H. Dhillon and F. Jondral, "Analysis of joint transmit–receive diversity in downlink MIMO heterogeneous cellular networks," IEEE Trans. Wireless Commun., vol. 14, no. 12, pp. 6695–6709, 2015

J. Demel, S. Koslowski and F. Jondral, "A LTE receiver framework using GNU Radio," Journal of Signal Processing Systems, vol. 78, no. 3, pp. 313–320, 2015

Konferenzbeiträge

L. Schmalen, V. Aref, D. Suikat and D. Rösener, "Next-generation forward error correction: Can we close the gap to the Shannon limit?," Asia Communications and Photonics Conference (ACP), pp. AS3D–4, Hong Kong, SAR China, Nov. 2015

L. Schmalen, "Novel forward error correction concepts for coherent optical communications," IEEE Photonics Conference (IPC), pp. 279–280, Reston, VA, USA, Oct. 2015

R. Rios-Müller, J. Renaudier, P. Brindel, P. Jenneve, H. Mardoyan, L. Schmalen and G. Charlet, "Experimental comparison between super-channel and sub-band single-carrier for 400 Gb/s and 800 Gb/s transport," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Valencia, Spain, Sep. 2015

F. Buchali, G. Böcherer, W. Idler, L. Schmalen, P. Schulte and F. Steiner, "Experimental demonstration of capacity increase and rate-adaptation by probabilistically shaped 64-QAM," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Valencia, Spain, Sep. 2015, https://arxiv.org/abs/1509.08836

A. Ghazisaeidi, L. Schmalen, P. Tran, C. Simonneau, E. Awwad, B. Uscumlic, P. Brindel and G. Charlet, "54.2 Tb/s transoceanic transmission using ultra low loss fiber, multi-rate FEC and digital nonlinear mitigation," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Valencia, Spain, Sep. 2015

F. Buchali, L. Schmalen, Q. Hu and D. Che, "Low latency digital regenerator for dual polarization QAM signals," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Valencia, Spain, Sep. 2015

L. Schmalen, D. Suikat, D. Rösener, V. Aref, A. Leven and S. ten Brink, "Spatially coupled codes and optical fiber communications: An ideal match?," Proc. IEEE Workshop Signal Process. Advances in Wireless Commun.(SPAWC), pp. 460–464, Stockholm, Sweden, Jun. 2015, https://arxiv.org/abs/1505.05405

J. Cho and L. Schmalen, "Construction of protographs for large-girth structured LDPC convolutional codes," Proc. IEEE Int. Conf. Commun. (ICC), pp. 4412–4417, London, UK, Jun. 2015

L. Schmalen, S. ten Brink and A. Leven, "Spatially-coupled LDPC protograph codes for universal phase slip-tolerant differential decoding," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th3E–6, Los Angeles, CA, USA, Mar. 2015

R. Rios-Müller, J. Renaudier, P. Brindel, H. Mardoyan, P. Jenneve, L. Schmalen and G. Charlet, "1-Terabit/s net data-rate transceiver based on single-carrier Nyquist-shaped 124 GBaud PDM-32QAM," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th5B–1, Los Angeles, CA, USA, Mar. 2015

W. Idler, F. Buchali, L. Schmalen, K. Schuh and H. Bülow, "Hybrid modulation formats outperforming 16QAM and 8QAM in transmission distance and filtering with cascaded WSS," Proc. Opt. Fiber Commun. Conf. (OFC), pp. 1–3, Los Angeles, CA, USA, Mar. 2015

F. Buchali, W. Idler, L. Schmalen and K. Schuh, "Performance and advantages of 100 Gb/s QPSK/8QAM hybrid modulation formats," Proc. Opt. Fiber Commun. Conf. (OFC), pp. Th2A–16, Los Angeles, CA, USA, Mar. 2015

H. Mardoyan, R. Rios-Müller, M. Mestre, P. Jenneve, L. Schmalen, A. Ghazisaeidi, P. Tran, S. Bigo and J. Renaudier, "Transmission of single-carrier Nyquist-shaped 1-Tb/s line-rate signal over 3,000 km," Proc. Opt. Fiber Commun. Conf. (OFC), pp. W3G–2, Los Angeles, CA, USA, Mar. 2015

R. Rios-Müller, J. Renaudier, L. Schmalen and G. Charlet, "Joint coding rate and modulation format optimization for 8QAM constellations using BICM mutual information," Proc. Opt. Fiber Commun. Conf. (OFC), pp. W3K–4, Los Angeles, CA, USA, Mar. 2015

J. Renaudier, R. Rios-Müller, L. Schmalen and G. Charlet, "Spectrally efficient 1Tb/s transceivers," Proc. Opt. Fiber Commun. Conf. (OFC), pp. M2G–3, Los Angeles, CA, USA, Mar. 2015

A. Kaushik, F. Wunsch, A. Sagainov, N. Cuervo, J. Demel, S. Koslowski, H. Jäkel and F. Jondral, "Spectrum sharing for 5G wireless systems (Spectrum sharing challenge)," Proc. IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), pp. 1–2, 2015

S. Wunsch, J. Fink and F. Jondral, "Improved detection by peak shape recognition using artificial neural networks," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2015

J. Fink and F. Jondral, "Comparison of OFDM radar and chirp sequence radar," Proc. International Radar Symposium (IRS), pp. 315–320, 2015

S. Koslowski and F. Jondral, "SIC-MMSE detection for filter bank multicarrier systems," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–2, 2015

A. Kaushik, S. Sharma, S. Chatzinotas, B. Ottersten and F. Jondral, "Sensing-throughput tradeoff for cognitive radio systems with unknown received power," Proc. International Conference on Cognitive Radio Oriented Wireless Networks, pp. 308–320, 2015

F. Wunsch, H. Jäkel and F. Jondral, "Performance Evaluation of IEEE 802.15. 4 OQPSK and CSS PHY in the Presence of Interference," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2015

A. Kaushik, S. Sharma, S. Chatzinotas, B. Ottersten and F. Jondral, "Estimation-Throughput tradeoff for underlay cognitive radio systems," Proc. IEEE Int. Conf. Commun. (ICC), pp. 7701–7706, 2015

N. El Gemayel, J. Schloemann, R. Buehrer and F. Jondral, "Improved indoor positioning using the Baum-Welch algorithm," Proc. IEEE Global Telecommun. Conf. (GLOBECOM), 2015

R. Tanbourgi and F. Jondral, "Downlink MIMO diversity with maximal-ratio combining in heterogeneous cellular networks," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1831–1837, 2015

N. El Gemayel, H. Jäkel and F. Jondral, "A Weighted Least Squares Algorithm for Passive Localization in Multipath Scenarios," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2015

J. Fink, S. Wunsch and F. Jondral, "Improved detector for continuous wave radar waveforms exploiting phase information," Proc. IEEE Radar Conference (RadarCon), pp. 1285–1290, 2015

J. Fink and F. Jondral, "A numerical comparison of chirp sequence versus OFDM radar waveforms," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2015

Andere

F. León and H. Jäkel, Signale und Systeme, 6 ed. Walter de Gruyter GmbH & Co KG, 2015

2014

Zeitschriftenbeiträge

A. Leven and L. Schmalen, "Status and recent advances on forward error correction technologies for lightwave systems," J. Lightw. Technol., vol. 32, no. 16, pp. 2735–2750, Aug. 2014

L. Schmalen, "A low-complexity LDPC coding scheme for channels with phase slips," J. Lightw. Technol., vol. 33, no. 7, pp. 1319–1325, Apr. 2014

M. Mühlhaus and F. Jondral, "A fully blind receiver for automatic modulation classification of MIMO signals," Proc. Karlsruhe Workshope on Software Radios, pp. 148–152, 2014

R. Tanbourgi, H. Dhillon, J. Andrews and F. Jondral, "Effect of spatial interference correlation on the performance of maximum ratio combining," IEEE Trans. Wireless Commun., vol. 13, no. 6, pp. 3307–3316, 2014

R. Tanbourgi, S. Singh, J. Andrews and F. Jondral, "A tractable model for noncoherent joint-transmission base station cooperation," IEEE Trans. Wireless Commun., vol. 13, no. 9, pp. 4959–4973, 2014

R. Tanbourgi, H. Dhillon, J. Andrews and F. Jondral, "Dual-branch MRC receivers under spatial interference correlation and Nakagami fading," IEEE Trans. Commun., vol. 62, no. 6, pp. 1830–1844, 2014

R. Tanbourgi, H. Jäkel and F. Jondral, "Cooperative interference cancellation using device-to-device communications," IEEE Commun. Mag., vol. 52, no. 6, pp. 118–124, 2014

R. Tanbourgi and F. Jondral, "Analysis of heterogeneous cellular networks under frequency diversity and interference correlation," IEEE Wireless Commun. Lett., vol. 4, no. 1, 2014

Konferenzbeiträge

A. Ghazisaeidi, L. Schmalen, I. de Jauregui, P. Tran, C. Simonneau, P. Brindel and G. Charlet, "52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC," Proc. Eur. Conf. Opt. Commun. (ECOC), Cannes, France, Sep. 2014

F. Buchali, L. Schmalen, K. Schuh and W. Idler, "Optimization of time-division hybrid-modulation and its application to rate adaptive 200Gb transmission," Proc. Eur. Conf. Opt. Commun. (ECOC), Cannes, France, Sep. 2014

L. Schmalen, "Low-complexity phase slip tolerant LDPC-based FEC scheme," Proc. Eur. Conf. Opt. Commun. (ECOC), Cannes, France, Sep. 2014

L. Schmalen, D. Suikat, D. Rösener and A. Leven, "Evaluation of left-terminated spatially coupled LDPC codes for optical communications," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, Cannes, France, Sep. 2014

C. Müller, A. Leven, H. Bülow, L. Schmalen, G. Leuchs and C. Marquardt, "M-ary phase shift keying receiver beating the standard quantum limit for any signal power," Proc. Eur. Conf. Opt. Commun. (ECOC), Cannes, France, Sep. 2014

R. Rios-Müller, J. Renaudier, P. Brindel, C. Simonneau, P. Tran, A. Ghazisaeidi, I. Fernandez, L. Schmalen and G. Charlet, "Optimized spectrally efficient transceiver for 400-Gb/s single carrier transport," Proc. Eur. Conf. Opt. Commun. (ECOC), Cannes, France, Sep. 2014

J. Renaudier, R. Müller, L. Schmalen, P. Tran, P. Brindel and G. Charlet, "1-Tb/s PDM-32QAM superchannel transmission at 6.7-b/s/Hz over SSMF and 150-GHz-grid ROADMs," Proc. Eur. Conf. Opt. Commun. (ECOC), Cannes, France, Sep. 2014

L. Schmalen, V. Aref, J. Cho and K. Mahdaviani, "Next generation error correcting codes for lightwave systems," Proc. Eur. Conf. Opt. Commun. (ECOC), Cannes, France, Sep. 2014

L. Schmalen and K. Mahdaviani, "Laterally connected spatially coupled code chains for transmission over unstable parallel channels," Proc. Int. Symp. Turbo Codes and Iterative Inform. Process. (ISTC), pp. 77–81, Bremen, Germany, Aug. 2014

F. Buchali, A. Klekamp, L. Schmalen and T. Drenski, "Implementation of 64QAM at 42.66 GBaud using 1.5 samples per symbol DAC and demonstration of up to 300 km fiber transmission," Proc. Opt. Fiber Commun. Conf. (OFC), pp. M2A–1, Mar. 2014

F. Buchali, L. Schmalen, A. Klekamp, K. Schuh and A. Leven, "5x50 Gb/s WDM Transmission of 32 Gbaud DP-3-PSK over 36, 000 km Fiber with Spatially Coupled LDPC Coding," Proc. Opt. Fiber Commun. Conf. (OFC), pp. W1A–1, San Francisco, CA, USA, Mar. 2014

H. Bülow, X. Lu, L. Schmalen, A. Klekamp and F. Buchali, "Experimental performance of 4D optimized constellation alternatives for PM-8QAM and PM-16QAM," Proc. Opt. Fiber Commun. Conf. (OFC), pp. M2A–6, San Francisco, CA, USA, Mar. 2014

L. Schmalen, "Energy efficient FEC for optical transmission systems," Proc. Opt. Fiber Commun. Conf. (OFC), pp. M3A–1, San Francisco, CA, USA, Mar. 2014

R. Tanbourgi, S. Singh, J. Andrews and F. Jondral, "Analysis of non-coherent joint-transmission cooperation in heterogeneous cellular networks," Proc. IEEE Int. Conf. Commun. (ICC), pp. 5160–5165, 2014

R. Tanbourgi, H. Dhillon, J. Andrews and F. Jondral, "Dual-branch MRC receivers in the cellular downlink under spatial interference correlation," Proc. European Wireless Conference, 2014

S. Koslowski, M. Braun and F. Jondral, "Using filter bank multicarrier signals for radar imaging," Proc. IEEE/ION Position, Location and Navigation Symposium (PLANS), pp. 152–157, 2014

A. Kaushik, M. Raza and F. Jondral, "On the deployment of cognitive relay as underlay systems," Proc. International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 329–334, 2014

N. El Gemayel, H. Jäkel and F. Jondral, "Error analysis of a low cost TDoA sensor network," Proc. IEEE/ION Position, Location and Navigation Symposium (PLANS), pp. 1040–1045, Monterey, CA, USA, 2014

A. Kaushik and F. Jondral, "On the estimation of channel state transitions for cognitive radio systems," Proc. IEEE Wireless Commun. and Networking Conf. (WCNC), pp. 2037–2042, 2014

2013

Zeitschriftenbeiträge

L. Schmalen, A. van Wijngaarden and S. ten Brink, "Forward error correction in optical core and optical access networks," Bell Labs Technical Journal, vol. 18, no. 3, pp. 39–66, Dec. 2013

M. Braun, R. Tanbourgi and F. Jondral, "Co-channel interference limitations of OFDM communication-radar networks," EURASIP Journal on Wireless Communications and Networking, vol. 2013, no. 1, 2013

M. Mühlhaus, M. Öner, O. Dobre and F. Jondral, "A low complexity modulation classification algorithm for MIMO systems," IEEE Commun. Lett., vol. 17, no. 10, pp. 1881–1884, 2013

R. Moorfeld, A. Finger, H. Dehner, H. Jäkel, M. Braun and F. Jondral, "MIRA - Physical Layer Optimisation for the Multiband Impulse Radio UWB Architecture," Ultra-Wideband Radio Technologies for Communications, Localization and Sensor Applications, pp. 1, 2013

Buchkapitel

A. Leven and L. Schmalen, "Implementation aspects of coherent transmit and receive functions in application-specific integrated circuits," in I. Kaminow, T. Li and A. Willner (eds.), Optical Fiber Telecommunications VI-A, Academic Press, Jun. 2013

Konferenzbeiträge

H. Bülow, X. Lu and L. Schmalen, "Experimental analysis of transmission and soft decoding of optimized 4D constellations," Asia Communications and Photonics Conference (ACP), pp. AF4C–1, Beijing, China, Nov. 2013

M. Beermann, E. Monzo, L. Schmalen and P. Vary, "High speed decoding of non-binary irregular LDPC codes using GPUs," Proc. IEEE Workshop Signal Process. Syst. (SiPS), pp. 36–41, Taipei, Taiwan, Oct. 2013

V. Aref, L. Schmalen and S. ten Brink, "On the convergence speed of spatially coupled LDPC ensembles," Proc. Allerton Annu. Conf. Commun. Control Comp., pp. 342–349, Monticello, IL, USA, Oct. 2013, Full proofs available at https://arxiv.org/abs/1307.3780

H. Bülow, X. Lu and L. Schmalen, "Experimental analysis of single carrier POLQAM (6Pol-QPSK) transmission with soft-decoding," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, London, UK, Sep. 2013

M. Salsi, R. Rios-Müller, J. Renaudier, P. Tran, L. Schmalen, A. Ghazisaeidi, H. Mardoyan, P. Brindel, G. Charlet and S. Bigo, "38.75 Tb/s transmission experiment over transoceanic distance," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, London, UK, Sep. 2013

H. Bülow, X. Lu and L. Schmalen, "Experimental Analysis of Single Carrier POLQAM (6Pol-QPSK) Transmission with Soft-Decoding," Proc. Eur. Conf. Opt. Commun. (ECOC), London, UK, Sep. 2013

J. Renaudier, R. Rios-Muller, L. Schmalen, M. Salsi, P. Tran, G. Charlet and S. Bigo, "1-Tb/s transceiver spanning over just three 50-GHz frequency slots for long-haul systems," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, London, UK, Sep. 2013

R. Dischler and L. Schmalen, "Transmission of a 1.1 Tb/s super channel in 100 GHz optical bandwidth based on PM-256 QAM and spatially coupled FEC," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. 1–3, London, UK, Sep. 2013

A. Kaushik, M. Müller and F. Jondral, "Cognitive relay: Detecting spectrum holes in a dynamic scenario," Proc. International Symposium on Wireless Communication Systems (ISWCS), pp. 1–2, Ilmenau, Germany, Aug. 2013

M. Salsi, A. Ghazisaeidi, P. Tran, R. Muller, L. Schmalen, J. Renaudier, H. Mardoyan, P. Brindel, G. Charlet and S. Bigo, "31 Tb/s transmission over 7,200 km using 46 Gbaud PDM-8QAM with optimized error correcting code rate," Proc. Opto-Electron. Commun. Conf. (OECC), pp. PD3-5, Kyoto, Japan, Jun. 2013

F. Buchali, K. Schuh, L. Schmalen, W. Idler, E. Lach and A. Leven, "1-Tbit/s dual-carrier DP 64QAM transmission at 64Gbaud with 40\% overhead soft-FEC over 320km SSMF," Proc. Opt. Fiber Commun. Conf. (OFC), pp. OTh4E–3, Anaheim, CA, USA, Mar. 2013

L. Schmalen and S. ten Brink, "Combining spatially coupled LDPC codes with modulation and detection," Proc. Int. ITG Conf. on Systems, Communications and Channel Coding (SCC), pp. 1–6, Munich, Germany, Jan. 2013

N. Otterbach, M. Braun and F. Jondral, "Wireless networks in-the-loop: Creating a SDR development environment," Proc. International Symposium on Wireless Communication Systems (ISWCS), 2013

N. El Gemayel, H. Jäkel and F. Jondral, "A hybrid TDOA/RSSD geolocation system using the unscented kalman filter," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2013

M. Schwall and F. Jondral, "High-speed turbo equalization for GPP-based software defined radios," Proc. IEEE Military Communications Conference (MILCOM), pp. 1592–1596, 2013

M. Mühlhaus, M. Öner, O. Dobre, H. Jäkel and F. Jondral, "A novel algorithm for MIMO signal classification using higher-order cumulants," Proc. IEEE Radio and Wireless Symposium, pp. 7–9, 2013

J. Fink, F. Jondral, T. Bächle and O. Prinz, "Ultrawideband radar time domain simulation for the analysis of coherent signal processing techniques," Proc. International Radar Symposium (IRS), pp. 1019–1024, 2013

N. El Gemayel, S. Koslowski, F. Jondral and J. Tschan, "A low cost TDOA localization system: Setup, challenges and results," Proc. Workshop on Positioning, Navigation and Communication (WPNC), 2013

R. Tanbourgi, H. Jäkel and F. Jondral, "Cooperative relaying in a Poisson field of interferers: A diversity order analysis," Proc. IEEE Int. Symp. Inform. Theory (ISIT), pp. 3100–3104, Istanbul, Turkey, 2013

J. Demel, S. Koslowski and F. Jondral, "A LTE Receiver Framework Implementation in GNU Radio," Proc. Wireless Innovation Forum European Conference on Communications Technologies and Software Defined Radio (SDR-WInnComm-Europe), Munich, Germany, 2013

2012

Zeitschriftenbeiträge

L. Schmalen, F. Buchali, A. Leven and S. ten Brink, "A generic tool for assessing the soft-FEC performance in optical transmission experiments," IEEE Photon. Technol. Lett., vol. 24, no. 1, pp. 40–42, Jan. 2012

F. Jondral, J. Elsner and M. Schwall, "Software Defined Radio - Guest Editorial," Journal of Signal Processing Systems, vol. 69, no. 1, 2012

R. Tanbourgi, H. Jäkel and F. Jondral, "Interference in poisson networks with isotropically distributed nodes," arXiv preprint arXiv:1211.4755, 2012

R. Tanbourgi, J. Elsner, H. Jäkel and F. Jondral, "Adaptive frequency hopping in ad hoc networks with Rayleigh fading and imperfect sensing," IEEE Wireless Commun. Lett., vol. 1, no. 3, pp. 185–188, 2012

R. Tanbourgi, H. Jäkel and F. Jondral, "Interference and throughput in Poisson networks with isotropically distributed nodes," arXiv preprint arXiv:1211.4755, 2012

J. Elsner, H. Park, J. Mo and F. Jondral, "Multi-level orthogonal hopping rendezvous," IEEE Commun. Lett., vol. 16, no. 8, pp. 1220–1223, 2012

G. Vallant, M. Epp, M. Allen, M. Valkama and F. Jondral, "System-Level Mitigation of Undersampling ADC Nonlinearity for High-IF Radio Receivers," Frequenz, vol. 66, no. 9-10, pp. 311–319, 2012

Konferenzbeiträge

L. Schmalen, M. Adrat, T. Clevorn and P. Vary, "Windowed iterative source-channel decoding with delay constraints," Proc. Int. Symp. Turbo Codes and Iterative Inform. Process. (ISTC), pp. 16–20, Gothenburg, Sweden, Aug. 2012

L. Schmalen, S. ten Brink and A. Leven, "Analysis and optimization of iteration schedules for LDPC coded modulation and detection," Proc. Int. Symp. Turbo Codes and Iterative Inform. Process. (ISTC), pp. 210–214, Gothenburg, Sweden, Aug. 2012

M. Braun, M. Müller, M. Fuhr and F. Jondral, "A USRP-based testbed for OFDM-based radar and communication systems," Proc. of 22nd Virginia Tech. Symposium on Wireless Communications, Blacksburg, VA, USA, Jun. 2012

S. ten Brink, A. Leven and L. Schmalen, "FEC and soft decision: Concept and directions," Proc. Opt. Fiber Commun. Conf. (OFC), pp. OW1H–5, Los Angeles, CA, USA, Mar. 2012

L. Schmalen and R. Dischler, "Experimental evaluation of coded modulation for a coherent PDM system with high spectral efficiency," Proc. Opt. Fiber Commun. Conf. (OFC), pp. 1–3, Los Angeles, CA, USA, Mar. 2012

F. Buchali, K. Schuh, D. Rösener, E. Lach, R. Dischler, W. Idler, L. Schmalen, A. Leven, R. Braun, A. Ehrhardt, C. Gerlach and L. Schürer, "512-Gb/s DP-16-QAM field trial over 734 km installed SSMF with co-propagating 10 Gb/s NRZ neighbors incorporating soft-FEC decoding," Proc. Opt. Fiber Commun. Conf. (OFC), pp. OW4C–4, Los Angeles, CA, USA, Mar. 2012

L. Schmalen, S. ten Brink, G. Lechner and A. Leven, "On threshold prediction of low-density parity-check codes with structure," Conf. Inform. Sciences Syst. (CISS), pp. 1–5, Princeton, NJ, USA, Mar. 2012

R. Tanbourgi, J. Elsner, H. Jäkel and F. Jondral, "Optimizing practical adaptive frequency hopping and medium access control in ad hoc networks," Proc. International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt), pp. 368–373, 2012

R. Tanbourgi, X. Pujol i Molist and F. Jondral, "Collision-balancing frequency hopping in single-hop mobile ad hoc networks," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2012

H. Dehner, D. Figielek, H. Jäkel, M. Braun, F. Jondral and K. Witrisal, "High data rate coexistence-based channel coding for noncoherent Multiband Impulse Radio UWB," Proc. IEEE International Conference on Ultra-Wideband, pp. 120–124, 2012

M. Fuhr, M. Braun, C. Sturmz, L. Reichardtz and F. Jondral, "An SDR-based experimental setup for OFDM-based radar," Proc. Karlsruhe Workshop on Software Radio, pp. 176, 2012

M. Mühlhaus, M. Öner, O. Dobre, H. Jäkel and F. Jondral, "Automatic modulation classification for MIMO systems using fourth-order cumulants," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2012

J. Fink, M. Braun and F. Jondral, "Effects of arbitrarily spaced subcarriers on detection performance in OFDM radar," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2012

M. Braun, M. Fuhr and F. Jondral, "Spectral estimation-based OFDM radar algorithms for IEEE 802.11a Signals," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2012

N. El Gemayel, S. Meier and F. Jondral, "On the applicability of the residual weighting algorithm for TDOA," Proc. International Congress on Ultra Modern Telecommunications and Control Systems, pp. 143–147, 2012

2011

Zeitschriftenbeiträge

L. Schmalen and P. Vary, "Iterative source-channel decoding with reduced error floors," IEEE J. Sel. Topics Signal Process., vol. 5, no. 8, pp. 1577–1587, Dec. 2011

A. Leven, F. Vacondio, L. Schmalen, S. ten Brink and W. Idler, "Estimation of soft FEC performance in optical transmission experiments," IEEE Photon. Technol. Lett., vol. 23, no. 20, pp. 1547–1549, Oct. 2011

L. Schmalen, M. Adrat, T. Clevorn and P. Vary, "EXIT chart based system design for iterative source-channel decoding with fixed-length codes," IEEE Trans. Commun., vol. 59, no. 9, pp. 2406–2413, Sep. 2011

N. Grove, A. Picot, F. Jondral and J. Elsner, "Why the Digital Dividend will not close the Digital Divide," InterMedia, vol. 39, no. 2, pp. 32–37, May. 2011

V. Rodriguez, F. Jondral and R. Mathar, "Decoupled power allocation through pricing on a CDMA reverse link shared by energy-constrained and energy-sufficient data terminals," Mobile Networks and Applications, vol. 16, no. 5, pp. 640–660, 2011

A. Picot, N. Grove, F. Jondral and J. Elsner, "Why the Digital Dividend will not close the Digital Divide," InterMedia, 2011

Konferenzbeiträge

Y. Chen, L. Schmalen, H. Bülow, A. Leven and S. Ten Brink, "Space-time coding schemes for optical MIMO," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. Tu–6, Geneva, Switzerland, Sep. 2011

L. Schmalen, M. Tschauner, T. Breddermann and P. Vary, "Novel iterative multiple description coding for correlated sources," Proc. Eur. Signal Process. Conf. (EUSIPCO), pp. 2094–2098, Barcelona, Spain, Aug. 2011

M. Beermann, L. Schmalen and P. Vary, "Improved decoding of binary and non-binary LDPC codes by probabilistic shuffled belief propagation," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–5, Kyoto, Japan, Jun. 2011

M. Fischer, M. Braun, J. Elsner and F. Jondral, "An Over-the-Air Reconfiguration API for Experimental Cognitive Radio Setups," Proc. Wireless Innovation Forum European Conference on Communications Technologies and Software Defined Radios (SDR'11-WInnComm-Europe), Brussels, Belgium, Jun. 2011

M. Schwall, S. Nagel, C. Reimer and F. Jondral, "Model-based waveform design for the universal software radio peripheral with simulink," Proc. IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), 2011

J. Elsner, C. Mohr and F. Jondral, "Capacity Regions of Wireless Multi-Channel Ad Hoc Networks," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2011

J. Elsner, R. Tanbourgi and F. Jondral, "Multiple access interference mitigation through multi-level locally orthogonal FH-CDMA," Proc. Military Communications Conference (MILCOM), pp. 378–383, 2011

M. Braun, C. Sturm and F. Jondral, "On the single-target accuracy of OFDM radar algorithms," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 794–798, 2011

R. Tanbourgi, J. Elsner and F. Jondral, "Lowering outage probability in ad hoc networks by nearest neighbor FDMA scheduling," Proc. IEEE Wireless Communications and Networking Conference, pp. 120–125, 2011

H. Dehner, H. Jäkel and F. Jondral, "Narrow-and broadband Interference Robustness for OOK/BPPM based Energy Detection," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–5, 2011

M. Hauske, F. Robel, F. Jondral and M. Ihle, "Real-time realization of interference suppression for robust wireless optical communication," Proc. Digital Signal Processing and Signal Processing Education Meeting (DSP/SPE), pp. 482–487, 2011

H. Dehner, H. Jäkel and F. Jondral, "On the modified Teager-Kaiser energy operator regarding narrowband interference," Proc. Wireless Telecommunications Symposium (WTS), pp. 1–5, 2011

G. Vallant, J. Dederer, M. Epp, W. Schlecker and F. Jondral, "A linearization strategy for undersampling analog-to-digital converters," Proc. IWADC, pp. 197–204, 2011

O. Apilo, M. Lasanen, A. Mämmelä and F. Jondral, "Average efficiency of power amplifiers in power-controlled systems with multi-antenna diversity," Proc. Wireless Telecommunications Symposium (WTS), pp. 1–6, 2011

R. Tanbourgi, J. Elsner, H. Jäkel and F. Jondral, "Lower bounds on the success probability for ad hoc networks with local fdma scheduling," Proc. International Symposium of Modeling and Optimization of Mobile, Ad Hoc, and Wireless Networks (WiOpt), pp. 342–347, 2011

Andere

L. Schmalen, Iterative source-channel decoding: Design and optimization for heterogeneous networks, RWTH Aachen University, Verlag Mainz in Aachen, Aachener Beiträge zu digitalen Nachrichtensystemen, Band 29, 2011

F. Puente León, U. Kiencke and H. Jäkel, Signale und systeme, 5 ed. Oldenbourg Verlag, 2011

2010

Zeitschriftenbeiträge

H. Dehner, H. Jäkel, D. Burgkhardt and F. Jondral, "The Teager-Kaiser energy operator in presence of multiple narrowband interference," IEEE Commun. Lett., vol. 14, no. 8, pp. 716–718, 2010

T. Renk, H. Jäkel and F. Jondral, "On Outage Capacity for Incremental Relaying with Imperfect Feedback," arXiv preprint arXiv:1001.2117, 2010

R. Tanbourgi, H. Jäkel and F. Jondral, "Increasing the one-hop progress of nearest neighbor forwarding," IEEE Commun. Lett., vol. 15, no. 1, pp. 64–66, 2010

S. Nagel, M. Schwall and F. Jondral, "Porting of waveforms: Principles and implementation," Frequenz, vol. 64, no. 11-12, pp. 218–223, 2010

Konferenzbeiträge

F. Massaro, J. Elsner, F. Dalla Vedova and F. Jondral, "Components for Software Radio Wideband Receivers: A space segment survey," Proc. SDR Technical Conference, Washington DC, USA, Nov. 2010

L. Schmalen and P. Vary, "Reconstruction of Multiple Descriptions by MMSE Estimation," Proc. ITG Conf. Speech Communication, Bochum, Germany, Oct. 2010

L. Schmalen, P. Vary, T. Clevorn and M. Adrat, "Turbo source compression with jointly optimized inner irregular and outer irregular codes," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, Ottawa, Canada, Sep. 2010

H. Dehner, Y. Koch, H. Jäkel, D. Burgkhardt, F. Jondral, R. Moorfeld and A. Finger, "Narrow-band interference robustness for energy detection in ook/ppm," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–5, Cape Town, South Africa, May. 2010

M. Adrat, M. Antweiler, L. Schmalen, P. Vary and T. Clevorn, "On the overshooting effect in EXIT charts of iterative source-channel decoding," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–5, Cape Town, South Africa, May. 2010

T. Clevorn, L. Schmalen, P. Vary and M. Adrat, "Hybrid ARQ with Incremental Redundant Index Assignments for Iterative Source-Channel Decoding," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–5, Cape Town, South Africa, May. 2010

L. Schmalen, T. Schlien and P. Vary, "The flexcode source-channel coding approach for audio and speech transmission," Proc. Int. ITG Conf. on Source and Channel Coding (SCC), pp. 1–6, Siegen, Germany, Jan. 2010

L. Schmalen and P. Vary, "Error resilient turbo compression of source codec parameters using inner irregular codes," Proc. Int. ITG Conf. on Source and Channel Coding (SCC), pp. 1–6, Siegen, Germany, Jan. 2010

J. Elsner, R. Tanbourgi and F. Jondral, "On the transmission capacity of wireless multi-channel ad hoc networks with local FDMA scheduling," Proc. International Congress on Ultra Modern Telecommunications and Control Systems, pp. 315–320, 2010

T. Renk, H. Jäkel, F. Jondral and A. Goldsmith, "Do decode-and-forward relaying protocols beat transmit diversity?," European Wireless Conference (EW), pp. 294–300, 2010

M. Braun, C. Sturm and F. Jondral, "Maximum likelihood speed and distance estimation for OFDM radar," Proc. IEEE Radar Conference, pp. 256–261, 2010

M. Braun, C. Sturm and F. Jondral, "On the frame design for Joint OFDM radar and communications," Proc. International OFDM Workshop, Hamburg, Germany, 2010

S. Nagel, M. Schwall and F. Jondral, "Performance overhead with high level waveform development," Proc. European Reconfigurable Radio Technologies Workshop, 2010

H. Dehner, H. Jäkel, D. Burgkhardt, F. Jondral, R. Moorfeld and A. Finger, "Treatment of temporary narrowband interference in non-coherent multiband impulse radio UWB," Proc. IEEE Mediterranean Electrotechnical Conference (Melecon), pp. 1335–1339, 2010

T. Renk, H. Jäkel and F. Jondral, "Incremental Relaying with Imperfect Feedback in Wireless Cooperative Networks," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2010

T. Renk, H. Jäkel, F. Jondral, D. Gündüz and A. Goldsmith, "Outage capacity of bursty amplify-and-forward with incremental relaying," Proc. Int. Symp. Inform. Theory Appl.(ISITA), pp. 1007–1011, 2010

S. Koslowski, M. Braun, J. Elsner and F. Jondral, "Wireless networks in-the-loop: Emulating an RF front-end in GNU radio," Proc. SDR Forum, 2010 European Reconfigurable Radio Technologies Workshop, 2010

M. Braun, Y. Koch, C. Sturm and F. Jondral, "Signal design and coding for high-bandwidth OFDM in car-to-car communications," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2010

M. Hauske and F. Jondral, "Characterization of wireless optical indoor channels," Proc. Photonics Global Conference, pp. 1–5, 2010

T. Renk, H. Jäkel and F. Jondral, "Outage regions of cooperative networks for different coding schemes," Proc. Int. Symposium on Control, Commun. and Signal Processing(ISCCSP), pp. 1–4, 2010

2009

Zeitschriftenbeiträge

H. Dehner, R. Moorfeld, H. Jäkel, D. Burgkhardt, A. Finger and F. Jondral, "Multi-band impulse radio–an alternative physical layer for high data rate UWB communication," Frequenz, vol. 63, no. 9-10, pp. 200–204, 2009

T. Renk, H. Jäkel, C. Kloeck and F. Jondral, "General expression of outage probability in cooperative networks," European Transactions on Telecommunications, vol. 20, no. 6, pp. 537–548, 2009

J. Elsner, C. Koerner and F. Jondral, "Centralized modeling of the communication space for spectral awareness in cognitive radio networks," ACM SIGMOBILE Mobile Computing and Communications Review, vol. 13, no. 2, pp. 62–73, 2009

Konferenzbeiträge

H. Lüders, B. Eschbach, L. Schmalen and P. Vary, "OFDM Turbo DeCodulation with exit optimized bit loading and signal constellations," Proc. Int. Conf. Acoustics, Speech, and Signal Process.(ICASSP), pp. 2589–2592, Taipei, Taiwan, Apr. 2009

L. Schmalen and P. Vary, "Near-lossless compression and protection by turbo source-channel (de-) coding using irregular index assignments," Proc. Int. Conf. Acoustics, Speech, and Signal Process.(ICASSP), pp. 2485–2488, Taipei, Taiwan, Apr. 2009

T. Renk, H. Jäkel, M. Braun, F. Jondral and G. Germany, "A Novel Combining Receiver for a Dual-Diversity Wireless Relay Network," Proc. International Symposium on Wireless Personal Multimedia Communications (WPMC), 2009

H. Dehner, M. Linde, R. Moorfeld, H. Jäkel, D. Burgkhardt, F. Jondral and A. Finger, "A low complex and efficient coexistence approach for non-coherent multiband impulse radio UWB," Proc. IEEE Sarnoff Symposium, pp. 1–5, 2009

R. Moorfeld, A. Finger, H. Dehner, H. Jäkel and F. Jondral, "Performance of a high flexible non-coherent multiband impulse radio UWB system," Proc. IASTED International Conference, pp. 027, 2009

T. Renk, H. Jäkel, F. Jondral, D. Gündüz and A. Goldsmith, "Outage capacity of incremental relaying at low signal-to-noise ratios," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2009

T. Renk, H. Jäkel and F. Jondral, "Comparing the outage capacity of transmit diversity and incremental relaying," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2009

J. Elsner, M. Braun, H. Jäkel and F. Jondral, "Compressed spectrum estimation for cognitive radios," Proc. 19th Virginia Tech Symposium on Wireless Communications, pp. 1–4, 2009

T. Renk, H. Jäkel and F. Jondral, "Outage regions and optimal power allocation for wireless relay networks," Proc. IEEE Inform. Theory Workshop (ITW), pp. 168–172, 2009

V. Rodriguez, F. Jondral and H. Jäkel, "Tracking a large number of tokens: A customised prioritised medium-access protocol for target responses," ICT Mobile Summit, Santander, Spain, 2009

H. Dehner, A. Romero, H. Jäkel, D. Burgkhardt, R. Moorfeld, F. Jondral and A. Finger, "Iterative coexistence approaches for non-coherent multi-band impulse radio UWB," Proc. IEEE International Conference on Ultra-Wideband, pp. 734–738, 2009

M. Mueck, C. Rom, W. Xu, A. Polydoros, N. Dimitriou, A. Diaz, R. Piesiewicz, H. Bogucka, S. Zeisberg, H. Jäkel, T. Renk and F. Jondral, "Smart femto-cell controller based distributed cognitive pilot channel," Proc. International Conference on Cognitive Radio Oriented Wireless Networks and Communications, pp. 1–5, 2009

T. Renk and F. Jondral, "Location-dependent performance of cooperative networks with power allocation," Proc. IEEE Symposium on Computers and Communications, pp. 399–403, 2009

V. Rodriguez, F. Jondral and R. Mathar, "Power allocation through revenue-maximising pricing on a CDMA reverse link shared by energy-constrained and energy-sufficient heterogeneous data terminals," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), 2009

J. Elsner, M. Braun, L. Chaichenets and F. Jondral, "On linearly precompressed non-parametric spectrum estimation," Proc. Workshop on Statistical Signal Processing, pp. 773–776, 2009

M. Braun, J. Elsner and F. Jondral, "Signal detection for cognitive radios with smashed filtering," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), 2009

M. Braun, C. Sturm, A. Niethammer and F. Jondral, "Parametrization of joint OFDM-based radar and communication systems for vehicular applications," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 3020–3024, 2009

T. Renk and F. Jondral, "Upper and lower bound on signal-to-noise ratio gains for cooperative relay networks," Conf. Inform. Sciences Syst. (CISS), pp. 652–656, 2009

T. Renk, D. Iankov and F. Jondral, "Adaptive resource allocation in wireless relay networks," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), 2009

J. Elsner, L. Chaichenets, H. Dehner and F. Jondral, "On regulation of spectrum sharing: An analysis supporting a distributed pilot channel," Proc. International Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2009

J. Elsner, M. Braun, S. Nagel, K. Nagaraj and F. Jondral, "Wireless networks in-the-loop: software radio as the enabler," Proc. Software Defined Radio Forum Technical Conference, 2009

M. Hauske, D. Shi, M. Ihle and F. Jondral, "Artificial lighting interference on free space photoelectric systems," Proc. International Symposium on Electromagnetic Compatibility, pp. 24, 2009

V. Rodriguez, F. Jondral and R. Mathar, "Power allocation for social benefit through price-taking behaviour on a CDMA reverse link shared by energy-constrained and energy-sufficient data terminals," Proc. International Symposium on Wireless Communication Systems, pp. 56–60, 2009

F. Jondral, D. Burgkhardt, J. Elsner, A. Picot and N. Grove, "Convergence of Mobile Communications and Broadcasting: A long term perspective," Proc. Conference on Applied Infrastructure Research, Berlin, Germany, 2009

D. Burgkhardt, I. Cosovic, G. Auer and F. Jondral, "Reducing the probability of network overload by spectrum trading," 2009 Canadian Conference on Electrical and Computer Engineering, pp. 363–367, 2009

Andere

U. Kiencke and H. Jäkel, Signale und Systeme, 4 ed. Oldenbourg Verlag, 2009

2008

Zeitschriftenbeiträge

T. Clevorn, L. Schmalen, P. Vary and M. Adrat, "On redundant index assignments for iterative source-channel decoding," IEEE Commun. Lett., vol. 12, no. 7, pp. 514–516, Jul. 2008

T. Yamada, D. Burgkhardt, I. Cosovic and F. Jondral, "Resource distribution approaches in spectrum sharing systems," EURASIP Journal on Wireless Communications and Networking, vol. 2008, no. 1, pp. 598080, 2008

V. Blaschke, C. Kloeck, J. Weiss, T. Renk and F. Jondral, "Opportunistic WiMAX-GSM coexistence," IET Communications, vol. 2, no. 6, pp. 837–845, 2008

T. Renk, C. Kloeck, D. Burgkhardt, F. Jondral, D. Grandblaise, S. Gault and J. Dunat, "Bio-inspired algorithms for dynamic resource allocation in cognitive wireless networks," Mobile Networks and Applications, vol. 13, no. 5, pp. 431–441, 2008

Y. Takefumi, B. Dennis, C. Ivan, J. Friedrich K and others, "Resource distribution approaches in spectrum sharing systems," EURASIP Journal on Wireless Communications and Networking, vol. 2008, 2008

Buchkapitel

M. Adrat, T. Clevorn and L. Schmalen, "Iterative source-channel decoding & turbo decodulation," in R. Martin, U. Heute and C. Antweiler (eds.), Advances in Digital Speech Transmission, pp. 365–398, John Wiley & Sons, Ltd Chichester, UK, 2008

Konferenzbeiträge

L. Schmalen, P. Vary and M. Adrat, "Reduced-Search Source Decoders for Iterative Source-Channel Decoding," Proc. ITG Conf. Speech Communication, pp. 1–4, Aachen, Germany, Oct. 2008

T. Clevorn, L. Schmalen, P. Vary and M. Adrat, "Iterative Source-Channel Decoding: Design of Redundant Index Assignments," Proc. ITG Conf. Speech Communication, pp. 1–4, Aachen, Germany, Oct. 2008

L. Schmalen, B. Schotsch, M. Jeub, P. Vary and T. Clevorn, "The FlexCode Channel Coding Approach," Proc. ITG Conf. Speech Communication, pp. 1–4, Aachen, Germany, Oct. 2008

L. Schmalen, P. Vary, M. Adrat and T. Clevorn, "Complexity-reduced iterative source-channel decoding by conditional quantization," Proc. Int. Symp. Turbo Codes and Iterative Inform. Process. (ISTC), pp. 327–332, Lausanne, Switzerland, Sep. 2008

R. Thobaben, L. Schmalen and P. Vary, "Joint source-channel coding with inner irregular codes," Proc. IEEE Int. Symp. Inform. Theory (ISIT), pp. 1153–1157, Toronto, Canada, Jul. 2008

B. Schotsch, L. Schmalen, P. Vary and T. Clevorn, "Graph-Based Turbo DeCodulation with LDPC Codes," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 772–776, Singapore, May. 2008

L. Schmalen, P. Vary, T. Clevorn and B. Schotsch, "Efficient iterative source-channel decoding using irregular index assignments," Proc. Int. ITG Conf. on Source and Channel Coding (SCC), pp. 1–6, Ulm, Germany, Jan. 2008

H. Lüders, L. Schmalen and P. Vary, "Approximating EXIT Characteristics of Soft Demodulators in OFDM BICM-ID Systems for Time Variant Frequency Selective Fading Channels," Proc. Int. ITG Conf. on Source and Channel Coding (SCC), pp. 1–6, Ulm, Germany, Jan. 2008

U. Berthold and F. Jondral, "Distributed detection in OFDM based ad hoc overlay systems," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1666–1670, 2008

J. Elsner, C. Koerner and F. Jondral, "Non-parametric modeling with Gaussian processes for spatial radio-scene analysis," Proc. IEEE Consumer Communications and Networking Conference, pp. 983–987, 2008

T. Renk, V. Blaschke and F. Jondral, "Time-dependent statistical analysis of measurements for the evaluation of vacant spectrum bands," XXIX. URSI General Assembly, pp. 17, 2008

V. Blaschke, T. Renk and F. Jondral, "A cognitive radio receiver supporting wide-band sensing," Proc. IEEE Int. Conf. Commun. (ICC), pp. 499–503, 2008

F. Jondral, "From Maxwell's equations to cognitive radio," Proc. International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom), pp. 1–5, 2008

D. Burgkhardt, I. Cosovic and F. Jondral, "Dynamic spectrum allocation by hierarchical resource trading," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1796–1800, 2008

S. Nagel, V. Blaschke, J. Elsner, F. Jondral and D. Symeonidis, "Certification of SDRs in new public and governmental security systems," Proc. SDR Technical Conf. Product Exposition, 2008

U. Berthold, F. Fu, M. van der Schaar and F. Jondral, "Detection of spectral resources in cognitive radios using reinforcement learning," Proc. IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), 2008

S. Nagel, D. Epple and F. Jondral, "Implementing the TETRA physical layer on Lyrtech's SFF SDR Development Platform," Proc. SDR Forum Technical Conference, 2008

T. Renk, H. Jäkel and F. Jondral, "Signal-to-noise ratio gains for cooperative relaying strategies," Proc. International Symposium on Wireless Communication Systems, pp. 324–328, 2008

T. Renk, C. Kloeck, H. Jäkel and F. Jondral, "Error performance of multi-hopping half-duplex relay networks," Proc. International Symposium on Wireless Pervasive Computing, pp. 314–318, 2008

T. Renk, H. Jäkel, C. Kloeck and F. Jondral, "Signal-to-Noise ratio requirements for wireless relay networks," Proc. Int. Symposium on Control, Commun. and Signal Processing(ISCCSP), pp. 791–794, 2008

R. Moorfeld, A. Finger, H. Dehner, H. Jäkel and F. Jondral, "A simple and fast detect and avoid algorithm for non-coherent multiband impulse radio UWB," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), 2008

M. Hauske, H. Jäkel, H. Dehner and F. Jondral, "Interference mitigation for energy detection in a multiband impulse radio UWB system," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2008

2007

Zeitschriftenbeiträge

T. Renk, H. Jäkel and F. Jondral, "Relay-Netzwerke – Kooperative Kommunikation unter mobilen Teilnehmern," Telekommunikation Aktuell, vol. 61, no. 8/9, pp. 1, Aug. 2007

M. Öner and F. Jondral, "On the extraction of the channel allocation information in spectrum pooling systems," IEEE J. Sel. Areas Commun., vol. 25, no. 3, pp. 558–565, 2007

M. Öner and F. Jondral, "Air interface identification for software radio systems," Int. Journal of Electronics and Commun. (AEÜ), vol. 61, no. 2, pp. 104–117, 2007

F. Jondral, "Cognitive radio: A communications engineering view," IEEE Wireless Commun., vol. 14, no. 4, pp. 28–33, 2007

U. Berthold, F. Jondral, S. Brandes and M. Schnell, "OFDM-based overlay systems: A promising approach for enhancing spectral efficiency," IEEE Commun. Mag., vol. 45, no. 12, pp. 52–58, 2007

C. Berger, M. Eisenacher, S. Zhou and F. Jondral, "Improving the UWB pulseshaper design using nonconstant upper bounds in semidefinite programming," IEEE J. Sel. Topics Signal Process., vol. 1, no. 3, pp. 396–404, 2007

Buchkapitel

F. Jondral and V. Blaschke, "Evolution of Digital Radios - From Analog to Cognitive Featgures," in F. Fitzek and M. Katz (eds.), Cognitive Wireless Networks, pp. 635–655, Springer, 2007

C. Kloeck, V. Blaschke, H. Jäkel, F. Jondral, D. Grandblaise, J. Dunat and S. Gault, "Cognitive Radio and Dynamic Spectrum Management," in Y. Zhang, J. Luo and H. Hu (eds.), Wireless Mesh Networking: Architectures, Protocols, and Standards, pp. 467–508, Auerbach Publishers, 2007

Konferenzbeiträge

L. Schmalen, T. Clevorn and P. Vary, "Iterative source-coded equalization: turbo error concealment for ISI channels," Proc. IEEE Workshop Signal Process. Advances in Wireless Commun.(SPAWC), pp. 1–5, Helsinki, Finland, Jun. 2007

L. Schmalen, P. Vary, M. Adrat and T. Clevorn, "On the EXIT Characteristics of Feed Forward Convolutional Codes," Proc. IEEE Int. Symp. Inform. Theory (ISIT), pp. 2686–2690, Nice, France, Jun. 2007

U. Berthold, H. Heimpel and F. Jondral, "Coordination of allocation measurements in OFDM based ad hoc overlay systems," Proc. Int. Conf. Acoustics, Speech, and Signal Process.(ICASSP), 2007

V. Blaschke, H. Jäkel, T. Renk, C. Kloeck and F. Jondral, "Occupation measurements supporting dynamic spectrum allocation for cognitive radio design," Proc. International Conference on Cognitive Radio Oriented Wireless Networks and Communications, pp. 50–57, 2007

S. Brandes, M. Schnell, U. Berthold and F. Jondral, "OFDM based overlay systems-design challenges and solutions," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), 2007

V. Blaschke, F. Jondral, S. Nagel, E. Nicollet and D. Ragot, "Wireless Interoperability for Security - WINTSEC," Proc. SDR Forum Technical Conference, 2007

J. Elsner, P. Rykaczewski, C. Korner and F. Jondral, "Orthogonal complex Hadamard spreading codes for I/Q imbalance mitigation in MC-CDMA systems," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 2661–2665, 2007

T. Renk, C. Kloeck and F. Jondral, "A cognitive approach to the detection of spectrum holes in wireless networks," Proc. IEEE Consumer Communications and Networking Conference, pp. 1118–1122, 2007

P. Rykaczewski and F. Jondral, "Blind I/Q imbalance compensation in multipath environments," Proc. IEEE International Symposium on Circuits and Systems, pp. 29–32, 2007

V. Rodriguez and F. Jondral, "Technical-economic impact of UWB personal area networks on a UMTS cell: Market-driven dynamic spectrum allocation revisited," Proc. IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), pp. 585–596, 2007

V. Rodriguez and F. Jondral, "Simple adaptively-prioritised spatially-reusable medium access control through the dutch auction: Qualitative analysis, issues, challenges," Proc. IEEE Symposium on Communications and Vehicular Technology in the Benelux, 2007

V. Rodriguez and F. Jondral, "Market-driven regulation for next generation ultra-wide-band technology: Technical-economic management of a 3G cell with coexisting UWB devices," Proc. IST Mobile and Wireless Communications Summit, 2007

T. Renk, C. Kloeck, F. Jondral, P. Cordier, O. Holland and F. Negredo, "Spectrum measurements supporting reconfiguration in heterogeneous networks," Proc. IST Mobile and Wireless Communications Summit, 2007

T. Renk, C. Kloeck, D. Burgkhardt and F. Jondral, "Cooperative communications in wireless networks-a requested relaying protocol," Proc. IST Mobile and Wireless Communications Summit, 2007

2006

Zeitschriftenbeiträge

H. Jäkel and M. Eisenacher, "Impulsbasierte UWB-Systeme-ein Uberblick," Telekommunikation Aktuell, vol. 60, no. 1/3, pp. 1, Jan. 2006

U. Berthold, S. Brandes, M. Schnell and F. Jondral, "On Focus: OFDM Based Overlay Scenarios," Proc. IST Mobile & Wireless Communications Summit, 2006

C. Kloeck, H. Jäkel and F. Jondral, "Multi-agent radio resource allocation," Mobile Networks and Applications, vol. 11, no. 6, pp. 813–824, 2006

C. Kloeck, H. Jäkel and F. Jondral, "Multi-agent wireless system for dynamic and local combined pricing, allocation and billing," Journal of Communications, vol. 1, no. 1, pp. 48–59, 2006

Konferenzbeiträge

T. Clevorn, L. Schmalen, P. Vary and M. Adrat, "On the optimum performance theoretically attainable for scalarly quantized correlated sources," Proc. Int. Symp. Inform. Theory Appl.(ISITA), Seoul, South Korea, Oct. 2006

T. Clevorn, B. Schotsch, L. Schmalen, P. Vary and M. Adrat, "Separation of recursive convolutional codes into sub-codes using Galois field arithmetic," Conf. Inform. Sciences Syst. (CISS), pp. 245–245, Princeton, NJ, USA, Mar. 2006

V. Blaschke and F. Jondral, "A concept for a standard-independent cognitive radio terminal," Proc. European Wireless Conference - Enabling Technologies for Wireless Multimedia Communications, 2006

V. Blaschke, S. Nagel and F. Jondral, "Mechanisms for the Adaptation of the Physical Layer in a Cognitive Radio," Proc. European Conference on Wireless Technology, pp. 43–46, 2006

C. Klock, H. Jäkel and F. Jondral, "Introduction of an analytical Figure of Merit for Quality of Service Measurement," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1–5, 2006

P. Rykaczewski, M. Valkama, M. Renfors and F. Jondral, "Non-data-aided I/Q imbalance compensation using measured receiver front-end signals," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 1–5, 2006

U. Berthold, S. Brandes, F. Jondral and M. Schnell, "A framework for crosslayer optimization in OFDM based overlay systems," Proc. International OFDM-Workshop (InOWo06), pp. 253–257, 2006

T. Renk, C. Kloeck, C. Koerner and F. Jondral, "Increasing spectral efficiency by managing adjacent channel interference," Proc. International Workshop on Technology and Policy for Accessing Spectrum, pp. 16–es, 2006

C. Berger, M. Eisenacher, H. Jäkel and F. Jondral, "Pulseshaping in UWB systems using semidefinite programming with non-constant upper bounds," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 1–5, 2006

Andere

F. Jondral, Nachrichtensysteme: Grundlagen - Verfahren - Anwendungen, Schlembach, 2006

2005

Zeitschriftenbeiträge

J. Hillenbrand, T. Weiss and F. Jondral, "Calculation of detection and false alarm probabilities in spectrum pooling systems," IEEE Commun. Lett., vol. 9, no. 4, pp. 349–351, 2005

G. Sessler and F. Jondral, "Low complexity polynomial expansion multiuser detector for CDMA systems," IEEE Trans. Veh. Technol., vol. 54, no. 4, pp. 1379–1391, 2005

F. Jondral, "Signalverarbeitung in der Funktechnik - vom Digitalen Empfanger zum Cognitive Radio," Telekommunikation Aktuell, vol. 59, no. 5/6, pp. 1, 2005

F. Jondral, "Software-defined radio — basics and evolution to cognitive radio," EURASIP Journal on Wireless Communications and Networking, vol. 2005, no. 3, pp. 652784, 2005

Konferenzbeiträge

L. Schmalen and M. Adrat, "An Iterative, Turbo-like Approach to Convolutional Decoding," 9th International Student Conference on Electrical Engineering (POSTER 2005), Prague, Czech Republic, May. 2005

M. Schmidt, H. Jäkel and F. Jondral, "Influence of the amplitude distribution to the interference of UWB signals on radio receivers," Proc. IEEE Global Telecommun. Conf. (GLOBECOM), pp. 5–pp, 2005

M. Schmidt, H. Jäkel and F. Jondral, "Spectral properties of ultra wideband signals with general Time-Hopping codes," Proc. EUROCON 2005 – The International Conference on "Computer as a Tool", pp. 124–127, 2005

U. Berthold, S. Brandes, F. Jondral and M. Schnell, "Performance of OFDM-CDMA overlay systems considering inaccurate allocation vectors," Proc. International OFDM-Workshop (InOWo05), pp. 230–234, 2005

H. Michael Schmidt, "Spectral Properties of Ultra Wideband Signals with General Time-Hopping Codes," Proc. IEEE EUROCON, 2005

U. Berthold and F. Jondral, "Guidelines for designing OFDM overlay systems," Proc. IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), pp. 626–629, 2005

C. Kloeck, H. Jäkel and F. Jondral, "Auction Sequence as a New Spectrum Allocation Mechanism," Proc. IST Mobile and Wireless Communications Summit, pp. 19–23, Dresden, Germany, 2005

C. Kloeck, H. Jäkel and F. Jondral, "Auction sequence as a new resource allocation mechanism," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 240–244, 2005

C. Kloeck, H. Jäkel and F. Jondral, "Dynamic and local combined pricing, allocation and billing system with cognitive radios," Proc. IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), pp. 73–81, 2005

F. Jondral, C. Kloeck and H. Jäkel, "Auction sequence as a new resource allocation mechanism," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), 2005

U. Berthold and F. Jondral, "Generalized system model of an overlay environment," Proc. Software Defined Radio Forum Technical Conference (SDR’05), Orange County (CA), USA, 2005

Andere

U. Kiencke and H. Jäkel, Signale und Systeme, 3 ed. Oldenbourg Verlag, 2005

2004

Zeitschriftenbeiträge

T. Weiss and F. Jondral, "Spectrum pooling: an innovative strategy for the enhancement of spectrum efficiency," IEEE Commun. Mag., vol. 42, no. 3, pp. S8–14, 2004

Konferenzbeiträge

U. Berthold, A. Rhiemeier and F. Jondral, "Spectral partitioning for modular software defined radio," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1218–1222, 2004

U. Berthold, A. Rhiemeier and F. Jondral, "A pipelining approach to operating modular software defined radio," Proc. IEEE/Sarnoff Symposium on Advances in Wired and Wireless Communications, pp. 201–204, 2004

I. Martoyo, M. Schmidt and F. Jondral, "FDE-RAKE: a PIC multiuser detector for CDMA downlink," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 47–50, 2004

P. Rykaczewski, J. Brakensiek and F. Jondral, "Towards an analytical model of I/Q imbalance in OFDM based direct conversion receivers," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1831–1835, 2004

M. Öner and F. Jondral, "Cyclostationarity based air interface recognition for software radio systems," Proc. IEEE Radio and Wireless Conference, pp. 263–266, 2004

M. Schmidt, I. Martoyo, H. Jäkel and F. Jondral, "Theoretical boundaries for combined information estimation and non data-aided channel estimation in UWB," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 82–86, 2004

P. Rykaczewski, H. Martoyo, Z. Liu and F. Jondral, "Multimode detector and I/Q imbalance compensator in a software defined radio," Proc. IEEE Radio and Wireless Conference, pp. 521–524, 2004

P. Rykaczewski, J. Brakensiek and F. Jondral, "Decision directed methods of I/Q imbalance compensation in OFDM systems," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 484–487, 2004

M. Öner and F. Jondral, "Extracting the channel allocation information in a spectrum pooling system using cyclic feature detection," Proc. Eur. Signal Process. Conf. (EUSIPCO), pp. 841–844, 2004

T. Weiss, M. Spiering and F. Jondral, "Quality of service in spectrum pooling systems," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 345–349, 2004

T. Weiss, J. Hillenbrand, A. Krohn and F. Jondral, "Mutual interference in OFDM-based spectrum pooling systems," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1873–1877, 2004

F. Capar and F. Jondral, "A Rayleigh fading channel model for multicarrier systems: a tapped delay line model," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 181–185, 2004

M. Öner and F. Jondral, "Air interface recognition for a software radio system exploiting cyclostationarity," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 1947–1951, 2004

A. Rhiemeier, T. Weiss and F. Jondral, "A simple and efficient solution to half-frame pipelining for modular software defined radio," Proc. Software Defined Radio Technical Conference and Product Exposition (SDR'04), pp. 119–125, 2004

I. Martoyo, G. Sessler, J. Luber and F. Jondral, "Comparing equalizers and multiuser detectors for CDMA downlink systems," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1649–1653, 2004

A. Rhiemer, T. Weiss and F. Jondral, "Half-frame pipelining for modular software defined radio," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 1664–1668, 2004

2003

Zeitschriftenbeiträge

M. Schmidt and F. Jondral, "Generalized UWB-OFDM," Frequenz, vol. 57, no. 9-10, pp. 179–184, 2003

A. Rhiemeier and F. Jondral, "Mathematical modeling of the software radio design problem," IEICE Transactions on Communications, vol. 86, no. 12, pp. 3456–3467, 2003

H. Jäkel and U. Kiencke, "Ein Beitrag zur Systemtheorie ereignisdiskreter Systeme–Teil 1: Der Zeitbereich (A Note on System Theoretic Elements of Discrete Event Systems–Part 1: Time Domain)," at-Automatisierungstechnik, vol. 51, no. 2, pp. 78–85, 2003

H. Jäkel and U. Kiencke, "Ein Beitrag zur Systemtheorie ereignisdiskreter Systeme–Teil 2: Der Bildbereich (A Note on System Theoretic Elements of Discrete Event Systems–Part 2: Range Domain)," at-Automatisierungstechnik, vol. 51, no. 3, pp. 128–135, 2003

Konferenzbeiträge

T. Weiss, J. Hillenbrand, A. Krohn and F. Jondral, "Efficient signaling of spectral resources in spectrum pooling systems," Proc. Symposium on Communications and Vehicular Technology (SCVT), 2003

T. Weiss, A. Krohn, F. Capar, I. Martoyo and F. Jondral, "Synchronization algorithms and preamble concepts for spectrum pooling systems," Proc. IST Mobile and Wireless Telecommunications Summit, pp. 788–792, 2003

M. Öner and F. Jondral, "Extracting the channel allocation information in a spectrum pooling system using a prefilter delay and multiply nonlinearity," Proc. IEEE Workshop on Statistical Signal Processing, pp. 46–49, 2003

A. Rhiemeier and F. Jondral, "Software partitioning and hardware architecture for modular SDR systems," Proc. Software Defined Radio Technical Conference and Product Exposition (SDR'03), pp. 9–15, 2003

L. Martoyo, T. Weiss, F. Capar and F. Jondral, "Low complexity CDMA downlink receiver based on frequency domain equalization," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 987–991, 2003

M. Schmidt and F. Jondral, "Ultra wideband transmission based on MC-CDMA," Proc. IEEE Global Telecommun. Conf. (GLOBECOM), pp. 749–753, 2003

F. Capar, I. Martoyo, T. Weiss and F. Jondral, "Analysis of coexistence strategies for cellular and wireless local area networks," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 1812–1816, 2003

A. Rhiemeier and F. Jondral, "On the design of modular software defined radio systems," Proc. IEE Colloquium on DSP enabled Radio, 2003

Andere

H. Jäkel, Ein Beitrag zur algebraischen Analyse verteilter und ereignisdiskreter Systeme, Logos-Verlag, 2003

2002

Zeitschriftenbeiträge

G. Sessler, R. Machauer and F. Jondral, "A Non-Linear Multiuser Detector for UMTS," Int. Journal of Electronics and Commun. (AEÜ), vol. 56, no. 6, pp. 421–425, 2002

A. Wiesler and F. Jondral, "A software radio for second-and third-generation mobile systems," IEEE Trans. Veh. Technol., vol. 51, no. 4, pp. 738–748, 2002

G. Sessler and F. Jondral, "Rapidly converging polynomial expansion multiuser detector with low complexity for CDMA systems," Electronics Letters, vol. 38, no. 17, pp. 997–998, 2002

H. Jäkel, T. Urbancsek and C. Thierer, "A Note on the Calculation of a Discrete-Event-System's Transfer Function," Reports on Industrial Information Technology (Vol. 5), vol. 30, pp. 978–3826712111, 2002

Buchkapitel

F. Jondral, "Parametrization — a technique for SDR implementation," in W. Tuttlebee (eds.), Software Defined Radio Enabling Technologies, pp. 233–256, John Wileys & Sons, 2002

Konferenzbeiträge

H. Jäkel and U. Kiencke, "Transfer Function of an ARMA-Structure for Discrete Event Systems," Proc. International Conference on Control and Applications, pp. 338-343, 2002

G. Sessler and F. Jondral, "Rapid iterative multiuser detection for utra-tdd in a time-variant multipath environment," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 702–706, 2002

F. Capar, I. Martoyo, T. Weiss and F. Jondral, "Comparison of bandwidth utilization for controlled and uncontrolled channel assignment in a spectrum pooling system," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), pp. 1069–1073, 2002

G. Sessler and F. Jondral, "Low complexity polynomial expansion multiuser detector with strong near-far resistance," Proc. Vehicular Technology Conference, pp. 1869–1872, 2002

F. Jondral, "Parameter controlled software defined radio," Software Defined Radio Technical Conference, San Diego, CA, USA, 2002

H. Schober and F. Jondral, "Velocity estimation for OFDM based communication systems," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 715–718, 2002

R. Machauer and F. Jondral, "FFT-speed and windowed multiuser detector for UTRA-FDD high rate data mode," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 712–716, 2002

H. Schober, F. Jondral, R. Stirling-Gallacher and Z. Wang, "Delay spread estimation for OFDM based mobile communication systems," Proc. European Wireless Conference, pp. 625–28, 2002

I. Martoyo, H. Schober and F. Jondral, "CDMA versus OFDM, a performance comparison in selective fading channels," Proceedings of 6th International Symposium on Spread Spectrum Techniques and Applications, pp. 139–143, 2002

I. Martoyo and F. Jondral, "Frequency domain equalization for the downlink of CDMA mobile radio systems," Proc. IEEE International Symposium on Advances in Wireless Communications (ISWC), 2002

Andere

U. Kiencke and H. Jäkel, Signale und Systeme, 2 ed. Oldenbourg Verlag, 2002

F. Jondral, R. Machauer and A. Wiesler, Software Radio: Adaptivität durch Parametrisierung, Schlembach, 2002

F. Jondral and A. Wiesler, Wahrscheinlichkeitsrechnung und stochastische Prozesse: Grundlagen für Ingenieure und Naturwissenschaftler, B. G. Teubner, 2002

2001

Zeitschriftenbeiträge

F. Jondral, "Software Defined Radio-Ansätze zur Entwicklung adaptiver Transceiver," Frequenz, vol. 55, no. 11-12, pp. 287–295, 2001

F. Jondral, "Generalized functions in signal theory," Acta Applicandae Mathematicae, vol. 63, pp. 175–184, 2001

Buchkapitel

A. Wiesler, O. Muller, R. Machauer and F. Jondral, "Parameter Representations for Baseband Processing of 2G and 3G Mobile Communications Systems," in E. Del Re (eds.), Software Radio, pp. 199–210, Springer, 2001

Konferenzbeiträge

R. Machauer, M. Iurascu and F. Jondral, "FFT speed multiuser detection for high rate data mode in UTRA-FDD," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 502–505, 2001

G. Sessler, I. Martoyo and F. Jondral, "RBF based multiuser detectors for UTRA-TDD," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 484–486, 2001

G. Sessler and F. Jondral, "Multiuser detection for UTRA-TDD based on polynomial expansion," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 2290–2293, 2001

H. Schober, F. Jondral, R. Stirling-Gallacher and Z. Wang, "Adaptive channel estimation for OFDM based high speed mobile communication systems," Proc. IEEE International Conference on Third Generation Wireless and Beyond 2001, pp. 392–397, 2001

2000

Zeitschriftenbeiträge

R. Machauer, B. Schipper and F. Jondral, "RAKE-Empfänger für UMTS," Frequenz, vol. 54, no. 11-12, pp. 277–283, 2000

Konferenzbeiträge

R. Machauer, A. Wiesler and F. Jondral, "Comparison of UTRA-FDD and CDAM2000 with Intra and Intercell Interference," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 652–656, 2000

R. Machauer, A. Wiesler and F. Jondral, "Comparison of UTRA-FDD and CDMA2000 with intra-and intercell interference," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 652–656, 2000

A. Wiesler, O. Muller and F. Jondral, "MAP-algorithm with fixed-point representation for software radios," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 2962–2968, 2000

F. Jondral, A. Wiesler and R. Machauer, "A software defined radio structure for 2nd and 3rd generation mobile communications standards," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 637–640, 2000

Andere

F. Jondral and A. Wiesler, Grundlagen der Wahrscheinlichkeitsrechnung und stochastischer Prozesse für Ingenieure, B.G. Teubner, 2000

1999

Zeitschriftenbeiträge

F. Jondral, "Funkubetragung uber Kurzwelle," Telekom Praxis, vol. 76, no. 12, pp. 35–45, 1999

G. Wetzker and F. Jondral, "Ambiguity function of periodic pulse shaped sequences," Electronics Letters, vol. 35, no. 8, pp. 611–613, 1999

Konferenzbeiträge

H. Ketterer, F. Jondral and A. Costa, "Classification of modulation modes using time-frequency methods," Proc. Int. Conf. Acoustics, Speech, and Signal Process.(ICASSP), pp. 2471–2474, 1999

A. Wiesler, H. Schober, R. Machauer and F. Jondral, "Software radio structure for UMTS and second generation mobile communication systems," Proc. IEEE Vehicular Technology Conf. (VTC-Fall), pp. 939–942, 1999

1998

Zeitschriftenbeiträge

F. Jondral, "Hot Spot Analysis in GSM Cells Using Radio Direction Finding," Int. Journal of Electronics and Commun. (AEÜ), vol. 52, no. 1, pp. 37–42, 1998

M. Kohl and F. Jondral, "Interference on satcom up-links and its suppression," International Journal of Satellite Communications, vol. 16, no. 3, pp. 147–153, 1998

C. Delfs and F. Jondral, "Zeit-Frequenz-Verfahren für die Klassifikation transienter Signale," Frequenz, vol. 52, no. 3-4, pp. 60–65, 1998

Konferenzbeiträge

F. Jondral, R. Machauer and A. Wiesler, "Comparison of GMSK and linear approximated GMSK for use in Software Radio," Proc. International Symposium on Spread Spectrum Techniques and Applications, pp. 557–559, 1998

G. Wetzker, C. Sieborger, U. Kaage and F. Jondral, "Maximum likelihood DSSS code acquisition in the presence of multipath propagation, Doppler shift and data modulation," Proc. International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), pp. 441–445, 1998

G. Wetzker, M. Dukek, H. Ernst and F. Jondral, "Multi-carrier modulation schemes for frequency-selective fading channels," Proc. International Conference on Universal Personal Communications (ICUPC), pp. 939–943, 1998

C. Delfs and F. Jondral, "Classification of transient time-varying signals using dft and wavelet packet based methods," Proc. Int. Conf. Acoustics, Speech, and Signal Process.(ICASSP), pp. 1569–1572, 1998

A. Wiesler and F. Jondral, "Software radio structure for second generation mobile communication systems," Proc. IEEE Vehicular Technology Conference, pp. 2363–2367, 1998

A. Wiesler, R. Machauer and F. Jondral, "Comparison of GMSK and linear approximated GMSK for use in software radio," Proc. International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), pp. 557–560, 1998

G. Wetzker, U. Kaage and F. Jondral, "A simulation method for Doppler spectra," Proc. International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), pp. 517–521, 1998

1997

Konferenzbeiträge

M. Kohl, A. Wiesler and F. Jondral, "Suppression of interferences over SATCOM links with transparent transponders," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 1024–1027, 1997

G. Wetzker and F. Jondral, "Simulation methods for time-variant wideband channels," Proc. IEEE Global Telecommun. Conf. (GLOBECOM), pp. 1557–1561, 1997

C. Delfs and F. Jondral, "Classification of piano sounds using time-frequency signal analysis," Proc. Int. Conf. Acoustics, Speech, and Signal Process.(ICASSP), pp. 2093–2096, 1997

C. Delfs and F. Jondral, "New aspects on classification using translation-invariant wavelet packet transforms," Proc. 2nd IEEE UK Symp. Appl. Time-Frequency Time-Scale Methods, pp. 73–76, Warwick, UK, 1997

1996

Zeitschriftenbeiträge

F. Jondral, M. Kohl and C. Hartmann, "Dopplerprofile für Kommunikationssatelliten," Frequenz, vol. 50, no. 5-6, pp. 111–116, 1996

Konferenzbeiträge

M. Kohl and F. Jondral, "Simulation of land mobile satcom links using different orbits and modulation modes," Proc. Eur. Signal Process. Conf. (EUSIPCO), 1996

G. Wetzker and F. Jondral, "Incoherent acquisition of DSSS signals in presence of Doppler shifts," Proc. International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), pp. 166–170, 1996

1995

Zeitschriftenbeiträge

F. Jondral, "Nacbrichtenuebertragung in LED-SATCOM-Systemen," Telekom Praxis, vol. 72, pp. 17–17, 1995

1991

Andere

F. Jondral, Funksignalanalyse, B. G. Teubner, 1991

1985

Zeitschriftenbeiträge

F. Jondral, K. Martin and H. Saur, "Peilauswertung mit Clusteranalyseverfahren," Frequenz, vol. 39, no. 4, pp. 111–113, 1985

F. Jondral, "Automatic classification of high frequency signals," Signal Processing, vol. 9, no. 3, pp. 177–190, 1985

Buchkapitel

F. Jondral and A. Mohr, "Über die Erweiterung Eines Klassifikationsmodells für Funksignale," in H. Niemann (eds.), Mustererkennung 1985, pp. 282–282, Springer, 1985

1981

Buchkapitel

F. Jondral and A. Mohr, "Ein Simulationsmodell zur Klassifikation binär modulierter Signale," in B. Radig (eds.), Modelle und Strukturen, pp. 41–47, Springer, 1981