Prof. Dr.-Ing. Ralf Müller
Chair for Digital Transmission
My research is focused on magnetic resonance imaging, in particular on diffusion-weighted imaging and quantitative susceptibility mapping. We develop new pulse sequences, post processing schemes, but also focus on the underlying theory.
Research projects
- Wireless communications
- Information theory
- Signal processing
- Efficient implementation of neural networks Precoding in multi-antenna systems Analysis of multidimensional Bayesian estimation
No projects found.
2026
- Fröhlich, J., Heinlein, B., Claar, J., Rosenberger, H., Belagiannis, V., & Müller, R. (2026). The Confusion is Real: GRAPHIC - A Network Science Approach to Confusion Matrices in Deep Learning. Transactions on Machine Learning Research.
2025
- Almeeva, L., Lehnert, A., Müller, R., & Reichenbach, M. (2025). High-Performance, Area-Efficient and Predictable Matrix Multiplication for ASIC. In Proceedings of the International Conference on Application-Specific Systems, Architectures and Processors (pp. 182-183). Vancouver, BC, CA: Institute of Electrical and Electronics Engineers Inc..
- Fröhlich, J., Rosenberger, H., & Müller, R. (2025). Spicing Up LLMs: The Role of PAPRICA Pruning in Linear Computation Coding. In Proceedings - 2025 IEEE Conference on Artificial Intelligence, CAI 2025 (pp. 352-357). Santa Clara, CA, USA: Institute of Electrical and Electronics Engineers Inc..
- Rosenberger, H., Fischer, R., Fröhlich, J., Bereyhi, A., & Müller, R. (2025). Coding for Computation: Efficient Compression of Neural Networks for Reconfigurable Hardware. In 2025 IEEE Statistical Signal Processing Workshop (SSP) (pp. 1-5). Edinburgh, UA: New York City: IEEE.
2024
- Eisele, B., Bereyhi, A., Müller, R., & Rangan, S. (2024). Vector Approximate Message Passing for 3D MIMO Radar. In Proceedings of the Asilomar Conference on Signals, Systems, and Computers.
- Müller, R. (2024). Multi-Antenna Towards In-band Shift Keying. In Proceedings of the International Symposium on Wireless Communication Systems. Rio de Janeiro, BRA: VDE Verlag GmbH.
- Rosenberger, H., Bereyhi, A., & Müller, R. (2024). Graph-based Algorithms for Linear Computation Coding. In Amos Lapidoth, Stefan M. Moser (Eds.), International Zurich Seminar on Information and Communication (IZS 2024). Proceedings (pp. 62-66). Zürich, CH: ETH Zurich.
2023
- Bereyhi, A., Asaad, S., Ouyang, C., Müller, R., Schaefer, R.F., & Poor, H.V. (2023). Channel Hardening of IRS-Aided Multi-Antenna Systems: How Should IRSs Scale? IEEE Journal on Selected Areas in Communications, 1-1. https://doi.org/10.1109/JSAC.2023.3288237
- Bereyhi, A., Loureiro, B., Krzakala, F., Müller, R., & Schulz-Baldes, H. (2023). Bayesian Inference with Nonlinear Generative Models: Comments on Secure Learning. IEEE Transactions on Information Theory, 1-1. https://doi.org/10.1109/TIT.2023.3325187
- Bereyhi, A., Vagollari, A., Asaad, S., Müller, R., Gerstacker, W., & Poor, H.V. (2023). Device Scheduling in Over-the-Air Federated Learning via Matching Pursuit. IEEE Transactions on Signal Processing, 1-16. https://doi.org/10.1109/TSP.2023.3284376
- Eisele, B., Bereyhi, A., & Müller, R. (2023). Multiple Target Measurements: Bayesian Framework for Moving Object Detection in Mimo Radar. In ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (pp. 1-5). Rhodes Island, Greece, GR.
- Eisele, B., Bereyhi, A., Ullmann, I., & Müller, R. (2023). A Novel Antenna Placement Algorithm for Compressive Sensing MIMO Radar. In 2023 IEEE Radar Conference (RadarConf23) (pp. 1-6). San Antonio, TX, USA, US.
- Karataev, A., Rosenberger, H., Bereyhi, A., & Müller, R. (2023). Storage Constrained Linear Computation Coding. In Ali Bilgin, Michael W. Marcellin, Joan Serra-Sagrista, James A. Storer (Eds.), Data Compression Conference Proceedings (pp. 345-). Snowbird, UT, USA: Institute of Electrical and Electronics Engineers Inc..
- Lehnert, A., Holzinger, P., Pfenning, S., Müller, R., & Reichenbach, M. (2023). Most Resource Efficient Matrix Vector Multiplication on FPGAs. IEEE Access, 1-1. https://doi.org/10.1109/ACCESS.2023.3234622
- Lehnert, A., Rosenberger, H., Müller, R., & Reichenbach, M. (2023). More Efficient CMMs on FPGAs: Instantiated Ternary Adders for Computation Coding. In Applied Reconfigurable Computing. Architectures, Tools, and Applications. (pp. 275-289).
- Müller, R., Rosenberger, H., & Reichenbach, M. (2023). Linear Computation Coding for Convolutional Neural Networks.
- Ouyang, C., Bereyhi, A., Asaad, S., Müller, R., Cheng, J., & Yang, H. (2023). On the Ergodic Mutual Information of Keyhole MIMO Channels with Finite-Alphabet Inputs. IEEE Communications Letters, 27(1), 90-94. https://doi.org/10.1109/LCOMM.2022.3211451
- Ouyang, C., Bereyhi, A., Asaad, S., Müller, R., & Yang, H. (2023). Statistical-CSI-Based Antenna Selection and Precoding in Uplink MIMO. In WSA and SCC 2023 - 26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding (pp. 96-101). Braunschweig, DEU: VDE Verlag GmbH.
- Rosenberger, H., Fröhlich, J., Bereyhi, A., & Müller, R. (2023). Linear Computation Coding: Exponential Search and Reduced-State Algorithms. In Ali Bilgin, Michael W. Marcellin, Joan Serra-Sagrista, James A. Storer (Eds.), Data Compression Conference Proceedings (pp. 298-307). Snowbird, UT, US: Institute of Electrical and Electronics Engineers Inc..
- Sedaghat, M.A., Bereyhi, A., Müller, R., & Asaad, S. (2023). A Novel Tree-Based Algorithm for Device Coordination in Over-the-Air Federated Learning. In WSA and SCC 2023 - 26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding (pp. 1-6). Braunschweig, DEU: VDE Verlag GmbH.
2022
- Asaad, S., Wu, Y., Bereyhi, A., Müller, R., Schaefer, R.F., & Poor, H.V. (2022). Secure Active and Passive Beamforming in IRS-Aided MIMO Systems. IEEE Transactions on Information Forensics and Security. https://doi.org/10.1109/TIFS.2022.3159108
- Bereyhi, A., Asaad, S., Ouyang, C., Müller, R., Schaefer, R.F., & Poor, H.V. (2022). How Should IRSs Scale to Harden Multi-Antenna Channels? In Proceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop (pp. 276-280). Trondheim, NOR: IEEE Computer Society.
- Bereyhi, A., Loureiro, B., Krzakala, F., Müller, R., & Schulz-Baldes, H. (2022). Secure Coding via Gaussian Random Fields. In IEEE International Symposium on Information Theory - Proceedings (pp. 1241-1246). Espoo, FI: Institute of Electrical and Electronics Engineers Inc..
- Bereyhi, A., Müller, R., & Schulz-Baldes, H. (2022). Analysis of Sparse Recovery Algorithms via the Replica Method. In Gitta Kutyniok, Holger Rauhut, Robert J. Kunsch (Eds.), Compressed Sensing in Information Processing. (pp. 145-179). Cham: Birkhäuser.
- Müller, R. (2022). Linear Computation Coding Inspired by the Lempel-Ziv Algorithm. In 2022 IEEE INFORMATION THEORY WORKSHOP (ITW) (pp. 606-611). Mumbai, IN: NEW YORK: IEEE.
- Müller, R., Gäde, B., & Bereyhi, A. (2022). Linear Computation Coding: A Framework for Joint Quantization and Computing. Algorithms, 15(7). https://doi.org/10.3390/a15070253
2021
- Asaad, S., Wu, Y., Bereyhi, A., Müller, R., Schaefer, R.F., & Poor, H.V. (2021). Joint Active and Passive Secure Precoding in IRS-Aided MIMO Systems. In 2021 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM). Madrid, SPAIN: NEW YORK: IEEE.
- Bereyhi, A., Asaad, S., Gäde, B., Müller, R., & Poor, H.V. (2021). Detection of Spatially Modulated Signals via RLS: Theoretical Bounds and Applications. IEEE Transactions on Wireless Communications. https://doi.org/10.1109/twc.2021.3110839
- Bereyhi, A., Asaad, S., & Müller, R. (2021). Oversampled Adaptive Sensing via a Predefined Codebook. In 2021 1st IEEE International Online Symposium on Joint Communications and Sensing, JC and S 2021. Dresden, DE: Institute of Electrical and Electronics Engineers Inc..
- Bereyhi, A., Asaad, S., Müller, R., Schaefer, R.F., Fischer, G., & Poor, H.V. (2021). Securing Massive MIMO Systems: Secrecy for Free with Low-Complexity Architectures. IEEE Transactions on Wireless Communications. https://doi.org/10.1109/TWC.2021.3070529
- Gäde, B., Erhardt, S., Fischer, G., & Müller, R. (2021). An Outphasing MIMO Architecture Prototype. In Proceedings of the European Microwave Week 2020. Jaarbeurs Convention Centre Utrecht (Virtual conference due to COVID-19).
- Jamali Kooshkghazi, V., Tulino, A.M., Fischer, G., Müller, R., & Schober, R. (2021). Intelligent surface-Aided transmitter architectures for millimeter-wave ultra massive mimo systems. IEEE Open Journal of the Communications Society, 2, 144-167. https://doi.org/10.1109/OJCOMS.2020.3048063
- Müller, R. (2021). Energy-Efficient Digital Beamforming by Means of Linear Computation Coding. In IEEE Workshop on Statistical Signal Processing Proceedings (pp. 186-190). Virtual, Rio de Janeiro, BRA: IEEE Computer Society.
- Müller, R. (2021). Massive Gaussian Multiple-Access by Random Coding With Soft Interference Cancellation. In IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC 2021). , ELECTR NETWORK: NEW YORK: IEEE.
- Müller, R. (2021). On Approximation, Bounding & Exact Calculation of Average Block Error Probability for Random Code Ensembles. IEEE Transactions on Communications. https://doi.org/10.1109/TCOMM.2021.3052539
- Müller, R. (2021). Soft interference cancellation for random coding in massive gaussian multiple-access†. Entropy, 23(5). https://doi.org/10.3390/e23050539
- Müller, R., Gäde, B., & Bereyhi, A. (2021). Linear computation coding. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 5065-5069). Virtual, Toronto, ON, CAN: Institute of Electrical and Electronics Engineers Inc..
2020
- Amiri, E., Müller, R., & Gerstacker, W. (2020). Semi-blind channel estimation for massive MIMO systems exploiting low-rank matrix reconstruction. In International Symposium on Wireless Personal Multimedia Communications, WPMC. IEEE Computer Society.
- Bereyhi, A., Asaad, S., Müller, R., Schaefer, R.F., & Poor, H.V. (2020). Secure Transmission in IRS-Assisted MIMO Systems with Active Eavesdroppers. In 2020 54TH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS (pp. 718-725). , ELECTR NETWORK: NEW YORK: IEEE.
- Bereyhi, A., Jamali, V., Müller, R., Tulino, A.M., Fischer, G., & Schober, R. (2020). A Single-RF Architecture for Multiuser Massive MIMO Via Reflecting Surfaces. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. 8688-8692). Barcelona, ES: Institute of Electrical and Electronics Engineers Inc..
- Gäde, B., Bereyhi, A., & Müller, R. (2020). Polar Quantisation of Uniformly Distributed Signals on the Hypersphere for OMA. In Proceedings of the 24th International ITG Workshop on Smart Antennas (WSA 2020). Hamburg University of Technology (TUHH), DE.
- Müller, R. (2020). On Approximation, Bounding Exact Calculation of Block Error Probability for Random Codes. In 2020 IEEE Global Communications Conference, GLOBECOM 2020 - Proceedings. Institute of Electrical and Electronics Engineers Inc..
- Müller, R., Gäde, B., & Bereyhi, A. (2020). Efficient Matrix Multiplication: The Sparse Power-of-2 Factorization. In 2020 Information Theory and Applications Workshop, ITA 2020. San Diego, CA, USA, US: Institute of Electrical and Electronics Engineers Inc..