Institute of Communications Engineering

Dr.-Ing. Johannes Pfeiffer

Research

Research Interests

  • Physical-Layer Security
  • Channel Coding
  • Coded Modulation
  • Scrambling
  • Rate-Compatible Coding
  • Post-Quantum Cryptography

Reseach Projects

Publications

Dissertation

  • J. Pfeiffer, Coded Modulation for Physical-Layer Security, Oct. 2023, doi: 10.18725/OPARU-50801.

Journals

  • J. Pfeiffer and R. F.H. Fischer,
    "Design of Practical Scrambling Schemes for Physical-Layer Security,"
    in IEEE Wireless Communications Letters, vol. 11, no. 10, pp. 2230-2234, Oct. 2022,
    doi: 10.1109/LWC.2022.3197848.
  • J. Pfeiffer and R. F.H. Fischer,
    "Multilevel Coding for Physical-Layer Security,"
    in IEEE Transactions on Communications, vol. 70, no. 3, pp. 1999-2009, March 2022,
    doi: 10.1109/TCOMM.2022.3145578.

Conferences

  • J. Pfeiffer and R. F.H. Fischer,
    "Polar Coding for Physical-Layer Security,"
    International ITG 26. Workshop on Smart Antennas (WSA) and 13. Conference on Systems, Communications, and Coding (SCC), Braunschweig, Germany, 2023
  • C. Schmidt-Langhorst, J. Pfeiffer, R. Elschner, R. Emmerich, F. Chowanek, I. Baek, R. F.H. Fischer, and C. Schubert,
    "Experimental Investigation of Information Bit Scrambling for Physical-Layer Security in Coherent Fiber-Optic Systems,"
    23. ITG-Symposium on Photonic Networks, Berlin, Germany, 2022
  • J. Pfeiffer and R. F.H. Fischer,
    "Combining Scrambling and Multilevel Coding for Physical-Layer Security,"
    22. ITG-Symposium on Photonic Networks, Stuttgart, Germany, 2021
  • J. Pfeiffer, C. Schmidt-Langhorst, R. Elschner, F. Frey, R. Emmerich, C. Schubert, and R. F.H. Fischer,
    "Security Gap Investigation of Multilevel Coding in Coherent Fiber-Optical Systems,"
    21. ITG-Symposium on Photonic Networks, Stuttgart, Germany, 2020
  • S. Stern, M. Barakatain, F. Frey, J. Pfeiffer, J. K. Fischer, and R. F.H. Fischer,
    "Coded Modulation for Four-Dimensional Signal Constellations with Concatenated Non-Binary Forward Error Correction,"
    46. European Conference on Optical Communication (ECOC), Brussels, Belgium, 2020
  • C. Schmidt-Langhorst, J. Pfeiffer, R. Elschner, F. Frey, R. Emmerich, R. F.H. Fischer, and C. Schubert,
    "Experimental Investigation of Security Gaps when using Punctured LDPC Coding in Coherent Systems up to 64-GBd DP-64QAM,"
    20. ITG-Symposium on Photonic Networks, Leipzig, Germany, 2019
  • J. Pfeiffer and R. F.H. Fischer,
    "Signal Constellations for Physical-Layer Security,"
    12. International ITG Conference on Systems, Communications and Coding (SCC), Rostock, Germany, 2019
  • J. Pfeiffer and R. F.H. Fischer,
    "Multilevel Coding for Physical-Layer Security in Optical Networks,"
    19. ITG-Symposium on Photonic Networks, Leipzig, Germany, 2018

Teaching

Teaching Assistance

Digital Communications (Lecturer: Prof. Dr.-Ing. Robert Fischer)

Signale und Systeme (Lecturer: Prof. Dr.-Ing. Robert Fischer)

Supervision of Students

Communications Engineering Seminar

  • Summer Semester 2022, Protograph LDPC Codes
  • Winter Semester 2020/2021, Post-Quantum Cryptography
  • Summer Semester 2020, Optimization of LDPC Codes
  • Winter Semester 2019/2020, Encoding and Decoding of LDPC Codes
  • Winter Semester 2018/2019, Post-Quantum Cryptography
  • Summer Semester 2018, Physical-Layer Security in Wireless Communications

Bachelor's and Master's Theses

  • Apara Chakraborty, Rate-Compatible Coding for Physical-Layer Security
  • Houri Mrad, Scrambling Approaches for Physical-Layer Security
  • Sebastian Junginger, Efficient Encoder for Punctured LDPC Codes
  • Eva Renftle, Design and Implementation of an Efficient Polar Decoder
  • Shreyas Raju, Assessment of Algorithms for Decentralized Key Generation

MSc/BSc Topics

Open Topics

Bachelor/Master Theses

Open theses topics can be found following this link (visible only in Uni Ulm intranet).

Alumni