Benedikt Geiger, M.Sc.

Benedikt Geiger, M.Sc.

  • Hertzstr. 16
    76187 Karlsruhe

Forschungsgebiete

  • Wireless Communications: Integrated Communications and Sensing (6G)
  • Optical Communications: Equalization-Enhanced Phase Noise (EEPN)

Lehre

  • Grundlagen der Datenübertragung

Aktuelle Arbeiten

Abschlussarbeiten

Offene Abschlussarbeiten

Titel Betreuer Art
Integrated Sensing and Communications in the Short-Blocklength Regime Benedikt Geiger, Jonathan Mandelbaum BA/MA
Erweiterung der GDÜ-Demo zur robusten Datenübertragung über akustische Kanäle Benedikt Geiger BA
Constellation Shaping for Integrated Sensing and Communications Benedikt Geiger BA/MA

Laufende Abschlussarbeiten

Titel Betreuer Art

Derzeit gibt es keine laufenden Abschlussarbeiten.

Gesamte Liste der Veröffentlichungen

Zeitschriftenbeiträge

  1. B. Geiger, F. Liu, S. Lu, A. Rode, D. Gil Gaviria, C. Muth and L. Schmalen, "Constellation shaping for OFDM-ISAC systems: from theoretical bounds to practical implementation," IEEE Trans. Commun., vol. 74, pp. 6025 - 6042, Mar. 2026, https://arxiv.org/abs/2509.04055
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  2. U. U. Erdem, L. Giroto, B. Geiger, T. Jeong, S. Mandelli, C. Karle, B. Nuss, L. Schmalen and T. Zwick, "Breaking the CP limit: robust long-range OFDM sensing via interference cleaning," IEEE Trans. Radar Systems, 2026, https://arxiv.org/abs/2602.19877
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  3. C. Muth, B. Geiger, D. Gil Gaviria and L. Schmalen, "Neural network-based single-carrier joint communication and sensing: loss design, constellation shaping and precoding," IEEE Access, vol. 13, pp. 164208-164222, Sep. 2025, https://arxiv.org/abs/2509.26508
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  4. V. Shatov, B. Nuss, S. Schieler, P. K. Bishoyi, L. Wimmer, M. Lübke, N. Keshtiarast, C. Fischer, D. Lindenschmitt, B. Geiger, R. Thomä, A. Fellan, L. Schmalen, M. Petrova, H. D. Schotten and N. Franchi, "Joint radar and communications: architectures, use cases, aspects of radio access, signal processing, and hardware," IEEE Access, vol. 12, pp. 47888-47914, Apr. 2024
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  5. A. Rode, B. Geiger, S. Chimmalgi and L. Schmalen, "End-to-end optimization of constellation shaping for Wiener phase noise channels with a differentiable blind phase search," J. Lightw. Technol., vol. 41, no. 12, pp. 3849-3859, Jun. 2023, https://arxiv.org/abs/2212.03839
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  6. B. Geiger, E. Sillekens, F. Ferreira, R. Killey, L. Galdino and P. Bayvel, "On the performance limits of high-speed transmission using a single wideband coherent receiver," J. Lightw. Technol., vol. 41, no. 12, pp. 3816-3824, Jun. 2023
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Konferenzbeiträge

  1. B. Geiger, F. Buchali, V. Aref and L. Schmalen, "Modeling and mitigation of equalization-enhanced phase noise," Proc. Eur. Conf. Opt. Commun. (ECOC), Malaga, Spain, Sep. 2026, invited paper and talk, https://arxiv.org/abs/2606.21468
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  2. B. Geiger, F. Buchali, V. Aref and L. Schmalen, "Modeling equalization-enhanced phase noise," Proc. Opto-Electron. Commun. Conf. (OECC), Busan, Republic of Korea, Jun. 2026, invited paper and talk
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  3. F. Artmann, D. Gil Gaviria, B. Geiger and L. Schmalen, "Interference mitigation for OFDM-based integrated sensing and communications with arbitrary modulation formats," Proc. European Wireless, Sophia-Antipolis, France, Oct. 2025, http://arxiv.org/abs/2509.07754, Huawei Best Paper Award
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  4. B. Geiger, F. Buchali, V. Aref and L. Schmalen, "A temporal Gaussian noise model for equalization-enhanced phase noise," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. Tu.01.05.3, Copenhagen, Denmark, Sep. 2025, http://arxiv.org/abs/2507.08470
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  5. H. Peng, L. Schmitz, D. Drayss, Y. Zheng, V. Lauinger, B. Geiger, Y. Xu, D. Fang, W. Freude, S. Randel, K. Yvind, L. Schmalen, M. Pu and C. Koos, "400 GBd 32QAM transmission using RF-synchronized dark-soliton microcombs for optical arbitrary waveform generation (OAWG)," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. Th.03.01.5, Copenhagen, Denmark, Sep. 2025, post-deadline paper
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  6. D. Gil Gaviria, B. Geiger, C. Muth and L. Schmalen, "On the sensing performance of FMCW-based integrated sensing and communications with arbitrary constellations," Proc. IEEE Vehicular Technology Conf. (VTC-Spring), Oslo, Norway, Jun. 2025, https://arxiv.org/abs/2503.17215
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  7. B. Geiger, S. Mandelli, M. Henninger, D. Gil Gaviria, C. Muth and L. Schmalen, "Integrated long-range sensing and communications in multi target scenarios using CP-OFDM," Proc. Intl. ITG Conf. on Systems, Communications, and Coding (SCC), Karlsruhe, Germany, Mar. 2025, https://arxiv.org/abs/2501.11591
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  8. B. Geiger, F. Buchali, V. Aref and L. Schmalen, "A novel phenomenological model of equalization-enhanced phase noise," Proc. Opt. Fiber Commun. Conf. (OFC), San Francisco, CA, USA, Mar. 2025, https://arxiv.org/abs/2502.06297
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  9. B. Geiger, F. Liu, S. Lu, A. Rode and L. Schmalen, "Joint optimization of geometric and probabilistic constellation shaping for OFDM-ISAC systems," Proc. IEEE International Symposium on Joint Communications and Sensing (JC&S), Oulu, Finland, Jan. 2025, https://arxiv.org/abs/2501.11583
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  10. A. Rode, S. Chimmalgi, B. Geiger and L. Schmalen, "Joint geometric and probabilistic constellation shaping with MOKka," Proc. IEEE International Conference on Machine Learning for Communication and Networking (ICMLCN), Stockholm, Sweden, May. 2024, Demo session
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  11. C. Muth, B. Geiger, D. Gil Gaviria and L. Schmalen, "Loss design for single-carrier joint communication and neural network-based sensing," Proc. Intl. Workshop on Smart Antennas (WSA), Dresden, Germany, Mar. 2024, https://arxiv.org/abs/2403.02929
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  12. B. Geiger, E. Sillekens, F. Ferreira, R. Killey, L. Galdino and P. Bayvel, "Record 2.29 Tb/s GS-256QAM transmission using a single receiver," Proc. Eur. Conf. Opt. Commun. (ECOC), pp. We3D.3, Basel, CH, Sep. 2022
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  13. A. Rode, B. Geiger and L. Schmalen, "Geometric constellation shaping for phase-noise channels using a differentiable blind phase search," Proc. Opt. Fiber Commun. Conf. (OFC), San Diego, CA, USA, Mar. 2022, preprint available at https://arxiv.org/pdf/2112.03114.pdf
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