Dr.Ing. Holger Jäkel
 room: 103
 phone: +49 721 60846272
 fax: +49 721 60846071
 holger jaekel ∂ kit edu
Geb.06.45, Hertzstr. 16, D76187 Karlsruhe
Teaching
 Probability Theory (Winter term)
 Statistical Methods of Information Processing (Winter term)
 Communcations Engineering II (Teaching language: Summer term in German, winter term in English)
 Applied Information Theory (Winter term, taught in German)
 Signal Processing in Communications (Summer term, taught in German)
 Seminar: Selected Topics in Communications (Winter term and summer term)
 Course Counseling & Approval: http://www.cel.kit.edu/modelle.php
 Communications Engineering I (Summer term 2016, 2017, 2018)
 Signals and Systems (Winter term 2019/20)
Current Theses
Theses
Open Theses
Title  Supervisor  Type 

Code Design of Nonbinary ParityCheck Codes  Holger Jäkel, Jonathan Mandelbaum  MA 
Theses In Progress
Title  Supervisor  Type 

There are currently no theses in progress. 
Full List of Publications
Journal papers

R. Tanbourgi, H. Jäkel and F. Jondral, "Cooperative interference cancellation using devicetodevice communications," IEEE Commun. Mag., vol. 52, no. 6, pp. 118–124, 2014
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R. Moorfeld, A. Finger, H. Dehner, H. Jäkel, M. Braun and F. Jondral, "MIRA  Physical Layer Optimisation for the Multiband Impulse Radio UWB Architecture," UltraWideband Radio Technologies for Communications, Localization and Sensor Applications, pp. 1, 2013
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R. Tanbourgi, H. Jäkel and F. Jondral, "Interference in poisson networks with isotropically distributed nodes," arXiv preprint arXiv:1211.4755, 2012
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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
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R. Tanbourgi, H. Jäkel and F. Jondral, "Interference and throughput in Poisson networks with isotropically distributed nodes," arXiv preprint arXiv:1211.4755, 2012
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R. Tanbourgi, H. Jäkel and F. Jondral, "Increasing the onehop progress of nearest neighbor forwarding," IEEE Commun. Lett., vol. 15, no. 1, pp. 64–66, 2010
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T. Renk, H. Jäkel and F. Jondral, "On Outage Capacity for Incremental Relaying with Imperfect Feedback," arXiv preprint arXiv:1001.2117, 2010
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H. Dehner, H. Jäkel, D. Burgkhardt and F. Jondral, "The TeagerKaiser energy operator in presence of multiple narrowband interference," IEEE Commun. Lett., vol. 14, no. 8, pp. 716–718, 2010
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H. Dehner, R. Moorfeld, H. Jäkel, D. Burgkhardt, A. Finger and F. Jondral, "Multiband impulse radio–an alternative physical layer for high data rate UWB communication," Frequenz, vol. 63, no. 910, pp. 200–204, 2009
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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
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T. Renk, H. Jäkel and F. Jondral, "RelayNetzwerke – Kooperative Kommunikation unter mobilen Teilnehmern," Telekommunikation Aktuell, vol. 61, no. 8/9, pp. 1, Aug. 2007
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H. Jäkel and M. Eisenacher, "Impulsbasierte UWBSystemeein Uberblick," Telekommunikation Aktuell, vol. 60, no. 1/3, pp. 1, Jan. 2006
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C. Kloeck, H. Jäkel and F. Jondral, "Multiagent wireless system for dynamic and local combined pricing, allocation and billing," Journal of Communications, vol. 1, no. 1, pp. 48–59, 2006
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C. Kloeck, H. Jäkel and F. Jondral, "Multiagent radio resource allocation," Mobile Networks and Applications, vol. 11, no. 6, pp. 813–824, 2006
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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)," atAutomatisierungstechnik, vol. 51, no. 3, pp. 128–135, 2003
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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)," atAutomatisierungstechnik, vol. 51, no. 2, pp. 78–85, 2003
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H. Jäkel, T. Urbancsek and C. Thierer, "A Note on the Calculation of a DiscreteEventSystem's Transfer Function," Reports on Industrial Information Technology (Vol. 5), vol. 30, pp. 978–3826712111, 2002
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Book chapters

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
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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
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Conference papers

J. Mandelbaum, H. Jäkel and L. Schmalen, "Generalized automorphisms of channel codes: Properties, code design, and a decoder," Proc. International Symposium on Topics in Coding (ISTC), Brest, France, Sep. 2023, https://arxiv.org/abs/2304.14379
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J. Voigt, H. Jäkel and L. Schmalen, "Semideterministic subspace selection for sparse recursive projectionaggregation decoding of ReedMuller codes," Proc. Int. ITG Workshop on Smart Antennas and Conf. on Systems, Communications, and Coding (WSASCC), Braunschweig, Germany, Feb. 2023, https://arxiv.org/abs/2211.01204
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F. Wunsch, D. Weber, H. Jäkel and F. Jondral, "Experimental Evaluation of the LongRange MIMO Outdoor Channel at 2.4 GHz," Proc. IEEE Vehicular Technology Conf. (VTCSpring), pp. 1–5, 2019
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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. (VTCFall), pp. 1–5, Chicago, IL, USA, Aug. 2018
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F. Wunsch, H. Jäkel and F. Jondral, "A lowcomplexity air interface with transmit diversity for low power wide area networks," Proc. IEEE Vehicular Technology Conf. (VTCSpring), pp. 1–5, 2018
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F. Wunsch, H. Jäkel and F. Jondral, "Bringing Transmit Antenna Diversity to LPWANs: An Experimental Testbed Implementation," Proc. GNU Radio Conference, 2018
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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
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N. El Gemayel, H. Jäkel and F. Jondral, "A Weighted Least Squares Algorithm for Passive Localization in Multipath Scenarios," Proc. IEEE Vehicular Technology Conf. (VTCFall), pp. 1–5, 2015
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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. (VTCFall), pp. 1–5, 2015
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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
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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
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M. Mühlhaus, M. Öner, O. Dobre, H. Jäkel and F. Jondral, "A novel algorithm for MIMO signal classification using higherorder cumulants," Proc. IEEE Radio and Wireless Symposium, pp. 7–9, 2013
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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
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N. El Gemayel, H. Jäkel and F. Jondral, "A hybrid TDOA/RSSD geolocation system using the unscented kalman filter," Proc. IEEE Vehicular Technology Conf. (VTCFall), pp. 1–5, 2013
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H. Dehner, D. Figielek, H. Jäkel, M. Braun, F. Jondral and K. Witrisal, "High data rate coexistencebased channel coding for noncoherent Multiband Impulse Radio UWB," Proc. IEEE International Conference on UltraWideband, pp. 120–124, 2012
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M. Mühlhaus, M. Öner, O. Dobre, H. Jäkel and F. Jondral, "Automatic modulation classification for MIMO systems using fourthorder cumulants," Proc. IEEE Vehicular Technology Conf. (VTCFall), pp. 1–5, 2012
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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
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H. Dehner, H. Jäkel and F. Jondral, "Narrowand broadband Interference Robustness for OOK/BPPM based Energy Detection," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–5, 2011
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H. Dehner, H. Jäkel and F. Jondral, "On the modified TeagerKaiser energy operator regarding narrowband interference," Proc. Wireless Telecommunications Symposium (WTS), pp. 1–5, 2011
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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
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H. Dehner, Y. Koch, H. Jäkel, D. Burgkhardt, F. Jondral, R. Moorfeld and A. Finger, "Narrowband interference robustness for energy detection in ook/ppm," Proc. IEEE Int. Conf. Commun. (ICC), pp. 1–5, Cape Town, South Africa, May. 2010
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T. Renk, H. Jäkel and F. Jondral, "Incremental Relaying with Imperfect Feedback in Wireless Cooperative Networks," Proc. IEEE Vehicular Technology Conf. (VTCFall), pp. 1–5, 2010
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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
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H. Dehner, H. Jäkel, D. Burgkhardt, F. Jondral, R. Moorfeld and A. Finger, "Treatment of temporary narrowband interference in noncoherent multiband impulse radio UWB," Proc. IEEE Mediterranean Electrotechnical Conference (Melecon), pp. 1335–1339, 2010
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T. Renk, H. Jäkel, F. Jondral and A. Goldsmith, "Do decodeandforward relaying protocols beat transmit diversity?," European Wireless Conference (EW), pp. 294–300, 2010
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T. Renk, H. Jäkel, F. Jondral, D. Gündüz and A. Goldsmith, "Outage capacity of bursty amplifyandforward with incremental relaying," Proc. Int. Symp. Inform. Theory Appl.(ISITA), pp. 1007–1011, 2010
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H. Dehner, A. Romero, H. Jäkel, D. Burgkhardt, R. Moorfeld, F. Jondral and A. Finger, "Iterative coexistence approaches for noncoherent multiband impulse radio UWB," Proc. IEEE International Conference on UltraWideband, pp. 734–738, 2009
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H. Dehner, M. Linde, R. Moorfeld, H. Jäkel, D. Burgkhardt, F. Jondral and A. Finger, "A low complex and efficient coexistence approach for noncoherent multiband impulse radio UWB," Proc. IEEE Sarnoff Symposium, pp. 1–5, 2009
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R. Moorfeld, A. Finger, H. Dehner, H. Jäkel and F. Jondral, "Performance of a high flexible noncoherent multiband impulse radio UWB system," Proc. IASTED International Conference, pp. 027, 2009
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T. Renk, H. Jäkel, M. Braun, F. Jondral and G. Germany, "A Novel Combining Receiver for a DualDiversity Wireless Relay Network," Proc. International Symposium on Wireless Personal Multimedia Communications (WPMC), 2009
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T. Renk, H. Jäkel and F. Jondral, "Comparing the outage capacity of transmit diversity and incremental relaying," Proc. IEEE Vehicular Technology Conf. (VTCFall), pp. 1–5, 2009
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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
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V. Rodriguez, F. Jondral and H. Jäkel, "Tracking a large number of tokens: A customised prioritised mediumaccess protocol for target responses," ICT Mobile Summit, Santander, Spain, 2009
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T. Renk, H. Jäkel, F. Jondral, D. Gündüz and A. Goldsmith, "Outage capacity of incremental relaying at low signaltonoise ratios," Proc. IEEE Vehicular Technology Conf. (VTCFall), 2009
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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 femtocell controller based distributed cognitive pilot channel," Proc. International Conference on Cognitive Radio Oriented Wireless Networks and Communications, pp. 1–5, 2009
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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
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T. Renk, H. Jäkel and F. Jondral, "Signaltonoise ratio gains for cooperative relaying strategies," Proc. International Symposium on Wireless Communication Systems, pp. 324–328, 2008
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T. Renk, C. Kloeck, H. Jäkel and F. Jondral, "Error performance of multihopping halfduplex relay networks," Proc. International Symposium on Wireless Pervasive Computing, pp. 314–318, 2008
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T. Renk, H. Jäkel, C. Kloeck and F. Jondral, "SignaltoNoise ratio requirements for wireless relay networks," Proc. Int. Symposium on Control, Commun. and Signal Processing(ISCCSP), pp. 791–794, 2008
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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. (VTCFall), pp. 1–5, 2008
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R. Moorfeld, A. Finger, H. Dehner, H. Jäkel and F. Jondral, "A simple and fast detect and avoid algorithm for noncoherent multiband impulse radio UWB," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSSTA), 2008
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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
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C. Klock, H. Jäkel and F. Jondral, "Introduction of an analytical Figure of Merit for Quality of Service Measurement," Proc. IEEE Vehicular Technology Conf. (VTCFall), pp. 1–5, 2006
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C. Berger, M. Eisenacher, H. Jäkel and F. Jondral, "Pulseshaping in UWB systems using semidefinite programming with nonconstant upper bounds," Proc. IEEE Int. Symposium on Personal, Indoor, and Mobile RadioCommun. (PIMRC), pp. 1–5, 2006
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M. Schmidt, H. Jäkel and F. Jondral, "Spectral properties of ultra wideband signals with general timehopping codes," Proc. IEEEE EUROCON, pp. 124–127, Nov. 2005
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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
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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
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C. Kloeck, H. Jäkel and F. Jondral, "Auction sequence as a new resource allocation mechanism," Proc. IEEE Vehicular Technology Conf. (VTCFall), pp. 240–244, 2005
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F. Jondral, C. Kloeck and H. Jäkel, "Auction sequence as a new resource allocation mechanism," Proc. IEEE Vehicular Technology Conf. (VTCFall), 2005
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M. Schmidt, H. Jäkel and F. Jondral, "Influence of the amplitude distribution to the interference of UWB signals on radio receivers," Proc. IEEE Global Commun. Conf. (GLOBECOM), pp. 5–pp, 2005
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M. Schmidt, I. Martoyo, H. Jäkel and F. Jondral, "Theoretical boundaries for combined information estimation and non dataaided channel estimation in UWB," Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications (ISSTA), pp. 82–86, 2004
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H. Jäkel and U. Kiencke, "Transfer Function of an ARMAStructure for Discrete Event Systems," Proc. International Conference on Control and Applications, pp. 338343, 2002
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