Prof. Dr.-Ing. Rafael F. Schaefer

2026

• Integrated sensing and communications for unsourced random access: Fundamental limits and practical modelAhmadi, M. J., Schaefer, R. F. & Vincent Poor, H., 4 May 2026, In: IEEE Transactions on Wireless Communications. 15 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Tutorial In-Person: Trustworthy 6G: Security and Privacy from the Physical LayerSchaefer, R. F., Fettweis, G., Pham, T. M. & Köpsell, S., 13 Apr 2026, IEEE Wireless Communications and Networking Conference (WCNC 2026)Research output: Contribution to book/conference proceedings/anthology/report > Conference contribution
• Frequency Hopping Waveform Design for Secure Integrated Sensing and CommunicationsBoroujeni, A. K., de Abreu, G. T. F., Köpsell, S., Bagheri, G., Ranasinghe, K. R. R. & Schaefer, R. F., 2 Apr 2026, In: IEEE Transactions on Information Forensics and Security. 21, p. 3719-3734, 16 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Leveraging Angle of Arrival Estimation Against Impersonation Attacks in Physical Layer AuthenticationPham, T. M., Senigagliesi, L., Baldi, M., Schaefer, R. F., Fettweis, G. P. & Chorti, A., Mar 2026, In: IEEE Transactions on Information Forensics and Security. 21, p. 3226-3239, 14 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Semantic Communication Through the Lens of Context-Dependent Channel ModelingGholipour, J., Schaefer, R. F. & Fettweis, G., 26 Feb 2026Electronic (full-text) versionResearch output: Preprint/documentation/report > Preprint
• AI/ML-Driven 6G Network Solutions with Energy Efficiency ConsiderationsRoessler, A., Lopez, M. M., Diab, R., Cavalcante, R. L. G., Abdi, A., Arendt, C., Bockelmann, C. & 21 others, 20 Feb 2026, In: IEEE access. 14, p. 39617-39645, 29 p., 11404155Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Softwarised networksDoan, T. V., Lhamo, O., Windisch, F., Seidel, M., Strufe, T., Schaefer, R. F., Fitzek, F. H. & 1 others, 17 Feb 2026, Humans, Robots and Virtual Worlds in the Tactile Internet. Elsevier Inc., p. 253-265, 13 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Chapter in book/Anthology/Report
• Novel information-theoretic approaches for 6GBoche, H., Cabrera, J., Deppe, C., Kutsevol, P., Wang, S., Fitzek, F., Hirche, S. & 9 others, 10 Feb 2026, 6G-life: Unveiling the Future of Technological Sovereignty, Sustainability, and Trustworthiness. Elsevier Inc., p. 509-539, 31 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Chapter in book/Anthology/Report
• Physical layer security for 6G networksWiese, M., Pehl, M., Pohle, D., Torres-Figueroa, L., Voichtleitner, J., Mönich, U. J., Seifert, D. & 4 others, 10 Feb 2026, 6G-life: Unveiling the Future of Technological Sovereignty, Sustainability, and Trustworthiness. Elsevier Inc., p. 467-485, 19 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Chapter in book/Anthology/Report
• Security and post-quantum cryptography in 6GBitzer, S., Hassanpour, S., Karl, P., Ritterhoff, S., Schaefer, R. F., Sigl, G., Strufe, T. & 1 others, 10 Feb 2026, 6G-life: Unveiling the Future of Technological Sovereignty, Sustainability, and Trustworthiness. Elsevier Inc., p. 443-466, 24 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Chapter in book/Anthology/Report
• Complete Characterization of the Arithmetic Complexity of the Capacity of Gaussian Fading ChannelsBoche, H., Grigorescu, A., Schaefer, R. F. & Vincent Poor, H., Feb 2026Research output: Contribution to conferences > Poster
• Joint communication and sensing in 6GSeguel, F., Wagner, J., Weißer, F., Andrei, V., Abdmoulah, M., Nimr, A., Li, Z. & 15 others, Feb 2026, 6G-life: Unveiling the Future of Technological Sovereignty, Sustainability, and Trustworthiness. Fitzek, F. H., Boche, H., Kellerer, W. & Seeling, P. (eds.). Academic Press, p. 291-322, 32 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Chapter in book/Anthology/Report
• 6G PHY: Insights From 6G-ANNA Research InitiativeBanerjee, B., Agarwal, B., Ahmad, A., Bockelmann, C., Cavalcante, R. L., Danaee, A., Dekorsy, A. & 23 others, 28 Jan 2026, In: IEEE Open Journal of the Communications Society. 7, p. 1210-1234, 25 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Enhancing Secret Key Generation in Low-Mobility Scenarios by Locally Generated PilotsPham, T. M., Chorti, A., Fettweis, G. P. & Schaefer, R. F., Jan 2026, 2025 IEEE 102nd Vehicular Technology Conference, VTC 2025-Fall - Proceedings. Institute of Electrical and Electronics Engineers (IEEE)Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Conference contribution

2025

• Efficient Feedback Design for Unsourced Random Access with Integrated Sensing and CommunicationAhmadi, M. J., Kazemi, M. & Schaefer, R. F., 4 Dec 2025, In: IEEE Wireless Communications Letters. 15, p. 710-714, 5 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Forward-Forward Autoencoder Architectures for Energy-Efficient Wireless CommunicationsSeifert, D., Günlü, O. & Schaefer, R. F., 13 Oct 2025Electronic (full-text) versionResearch output: Preprint/documentation/report > Preprint
• Algorithmic Computability of the Capacity of Additive Colored Gaussian Noise ChannelsBoche, H., Grigorescu, A., Schaefer, R. F. & Vincent Poor, H., Oct 2025, In: IEEE transactions on information theory. 71, 10, p. 7419-7434, 16 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Beam-Space Intermodulation Suppression for LoS MIMO System with Nonlinear Power AmplifiersLiu, B., Schaefer, R. F. & Fettweis, G. P., 26 Sep 2025, ICC 2025 - IEEE International Conference on Communications. Valenti, M., Reed, D. & Torres, M. (eds.). Institute of Electrical and Electronics Engineers (IEEE), p. 6245-6250, 6 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Conference contribution
• Code Design and Capacity Estimation for Fast-Fading Gaussian Channels: An Algorithmic PerspectiveBoche, H., Grigorescu, A., Schaefer, R. F. & Poor, H. V., 26 Sep 2025, ICC 2025 - IEEE International Conference on Communications. Valenti, M., Reed, D. & Torres, M. (eds.). Institute of Electrical and Electronics Engineers (IEEE), p. 2002-2007, 6 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Conference contribution
• Modular Neural Wiretap Codes for Fading ChannelsSeifert, D., Günlü, O. & Schaefer, R. F., 4 Sep 2025, 2025 IEEE 36th International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). Institute of Electrical and Electronics Engineers (IEEE), 5 p., 11274860Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Conference contribution
• Algorithmic Characterization of the Outage Capacity of Fading Gaussian ChannelsBoche, H., Grigorescu, A., Schaefer, R. F. & Poor, H. V., Sep 2025, ICC 2025 - IEEE International Conference on Communications. Valenti, M., Reed, D. & Torres, M. (eds.). Institute of Electrical and Electronics Engineers (IEEE), p. 2839-2844, 6 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Conference contribution
• Toward AI in 6G: Concepts, Techniques, and StandardsShafaei, S., Palaios, A., Ennaceur, Z., Zhang, J., Pandit, V., Gautam, P., Gharouni, A. & 32 others, 4 Aug 2025, In: IEEE access. 13, p. 143843-143874, 32 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• Building Resilience in Wireless Communication Systems With a Secret-Key BudgetBesser, K. L., Schaefer, R. F. & Vincent Poor, H., 9 Jun 2025, In: IEEE Transactions on Communications. 73, 11, p. 12473-12486, 14 p.Electronic (full-text) versionResearch output: Contribution to journal > Research article
• MinGRU-Based Encoder for Turbo Autoencoder FrameworksFritschek, R. & Schaefer, R. F., 11 Mar 2025Electronic (full-text) versionResearch output: Preprint/documentation/report > Preprint
• Pilot Randomization-based Secret Key Generation for Static ScenariosPham, T. M., Schaefer, R. F., Fettweis, G. P. & Chorti, A., Mar 2025, GLOBECOM 2024 - 2024 IEEE Global Communications Conference - Proceedings. Institute of Electrical and Electronics Engineers (IEEE), p. 37-42, 6 p.Electronic (full-text) versionResearch output: Contribution to book/conference proceedings/anthology/report > Conference contribution