Institute of Communications Engineering

Prof. Dr.-Ing. Robert Fischer

Background

Since 2011 Dr. Robert Fischer has been full professor for communications and signal theory at the University of Ulm, Germany.

Currently, he teaches undergraduate and graduate courses on signals and systems and on digital communications. His research concentrates on fast digital transmission including single- and multicarrier modulation techniques. Current interests are information theory, coded modulation, digital communications and signal processing, and especially precoding and shaping techniques for high-rate transmission schemes.

Dissertation / Habilitation:

Awards:

  • Precoding and Signal Shaping, Equalization Algorithms
  • OFDM Transmission Systems
  • Low-Complexity Receivers for Digital Communications
  • MIMO and Multiuser Communications
  • Ultra-Wideband Communications
  • Information Theory
  • Channel Coding and Coded Modulation
  • Physical-Layer Security
  • Compressed Sensing for Communications

And Or
277.
Kaesser, Paul; Ismail, Omar; Wagner, Johannes; Fischer, Robert F. H.; Ortmanns, Maurits
Frequency-Domain Analysis of Reconfigured Incremental $\Delta\Sigma$ ADCs on the Example of the Exponential Phase
IEEE Transactions on Circuits and Systems I: Regular Papers, 70 (11) :4346—4356
2023
DOI:10.1109/TCSI.2023.3310655
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trcas2023_ka.pdf
276.
Sterk, Elena; Sippel, Carmen; Fischer, Robert F. H.
Comparison of Damping Approaches for AMP
26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding
2023
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2023_es.pdf
275.
Sippel, Carmen; Fischer, Robert F. H.
Evaluation of the Fractional Approach for Iterative Algorithms in Compressed Sensing
26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding
2023
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2023_si.pdf
274.
Stern, Sebastian; Basler, Max; Fischer, Robert F. H.
Four-Dimensional Hurwitz Signal Constellations With Convenient Bit Mapping and Set Partitioning
26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding
2023
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2023_st.pdf
273.
Schulz, Rebekka; Fischer, Robert F. H.
Lattice-Reduction-Aided Preequalization for Physical-Layer Security in Wireless THz-Communication
26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding
2023
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2023_sc.pdf
272.
Pfeiffer, Johannes; Fischer, Robert F.H.
Polar Coding for Physical-Layer Security
26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding
2023
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2023_pf.pdf
271.
Pfeiffer, Johannes; Fischer, Robert F.H.
Design of Practical Scrambling Schemes for Physical-Layer Security
IEEE Wireless Communications Letters :2230—2234
October 2022
ISSN: 2162-2337
DOI:10.1109/LWC.2022.3197848
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wcomlett2022_pf.pdf
270.
Fischer, Robert F.H.; Sippel, Carmen
Unbiasing in Iterative Reconstruction Algorithms for Discrete Compressed Sensing
In Kutyniok, Gitta and Rauhut, Holger and Kunsch, Robert J., Editor, Compressed Sensing in Information Processing
Page 181—212
Publisher: Birkhäuser, Cham, Switzerland
October 2022
181—212
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/sppcosip2021_fi.pdf
269.
Pfeiffer, Johannes; Fischer, Robert F.H.
Multilevel Coding for Physical-Layer Security
IEEE Transactions on Communications, 70 (3) :1999—2009
March 2022
DOI:10.1109/TCOMM.2022.3145578
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trcom2022_pf.pdf
268.
Fischer, Robert F.H.; Müelich, Sven
A New Helper Data Scheme for Soft-Decision Decoding of Binary Physical Unclonable Functions
IEEE Access, 10 :12644—12653
2022
DOI:10.1109/ACCESS.2022.3146989
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/access2022_fi.pdf
267.
Stern, Sebastian; Ling, Cong; Fischer, Robert F.H.
Algorithms and Bounds for Complex and Quaternionic Lattices with Application to MIMO Transmission
IEEE Transactions on Information Theory
2022
DOI:10.1109/TIT.2022.3151061
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trit2022_st.pdf
266.
Fischer, Robert F.H.; Müelich, Sven
Coded Modulation and Shaping for Multivalued Physical Unclonable Functions
IEEE Access, 10 :99178—99194
2022
ISSN: 2169-3536
DOI:10.1109/ACCESS.2022.3207563
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/access2022_fi.pdf
265.
Schmidt-Langhorst, Carsten; Pfeiffer, Johannes; Elschner, Robert; Emmerich, Robert; Chowanek, Fabian; Baek, In-Ho; Fischer, Robert F.H.; Schubert, Colja
Experimental Investigation of Information Bit Scrambling for Physical-Layer Security in Coherent Fiber-Optic Systems
Photonic Networks; 23th ITG-Symposium, Page 1—6
2022
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgphoto2022_sl.pdf
264.
Teich, Werner
From Recurrent Neural Network based Algorithm to Low-Power High-Speed Analog Circuits for Communications
Workshop on Neuromorphic High-Speed Communications (NeuCoS)
December 2021
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/neucos2021_te.pdf
263.
Stern, Sebastian; Fischer, Robert F.H.
Non-Coherent Multi-User Massive MIMO Receivers with One-Bit Sigma-Delta Quantization
Proceedings of 25th International ITG Workshop on Smart Antennas (WSA)
November 2021
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wsa2021_st.pdf
262.
Schulz, Rebekka; Günlü, Onur; Elschner, Robert; Schaefer, Rafael F.; Schmidt-Langhorst, Carsten; Schubert, Colja; Fischer, Robert F.H.
Semantic Security for Indoor THz-Wireless Communication
17th International Symposium on Wireless Communication Systems (ISWCS)
September 2021
DOI:10.1109/ISWCS49558.2021.9562229
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/iswcs2012_sc.pdf
261.
Rohweder, Daniel; Stern, Sebastian; Fischer, Robert F.H.; Shavgulidze, Sergo; Freudenberger, Jürgen
Four-Dimensional Hurwitz Signal Constellations, Set Partitioning, Detection, and Multilevel Coding
IEEE Transactions on Communications, 69 (8) :5079—5090
August 2021
DOI:10.1109/TCOMM.2021.3083323
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trcom2021_ro.pdf
260.
Sippel, Carmen; Fischer, Robert F.H.
VAMP with Individual Variances and Sequential Processing for Compressed Sensing
29th European Signal Processing Conference
August 2021
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/eusipco2021_si.pdf
259.
Stern, Sebastian; Barakatain, Masoud; Frey, Felix; Fischer, Johannes K.; Fischer, Robert F.H.
Concatenated Non-Binary Coding with 4D Constellation Shaping for High-Throughput Fiber-Optic Communication
Proceedings of OSA Advanced Photonics Congress/Signal Processing in Photonic Communications (SPPCom)
July 2021
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/sppcom2021_st.pdf
258.
Pfeiffer, Johannes; Fischer, Robert F.H.
Combining Scrambling and Multilevel Coding for Physical-Layer Security
22. ITG-Symposium on Photonic Networks, Page 43—50
May 2021
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgphoto2021_pf.pdf
257.
Müelich, Sven; Mandry, Holger; Ortmanns, Maurits; Fischer, Robert F.H.
A Multilevel Coding Scheme for Multi-Valued Physical Unclonable Functions
IEEE Transactions on Information Forensics and Security, 16 :3814—3827
2021
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ititfor2021_mu.pdf
256.
Thiasiriphet, Thanawat; Teich, Werner
Combining OFDM-MFSK and Chirp Spread Spectrum Modulation for Applications in Low-Power Wide-Area Networks
15th International Conference on Signal Processing and Communication Systems (ICSPCS)
2021
DOI:10.1109/ICSPCS53099.2021.9660291
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/icspcs2021_th.pdf
255.
Sippel, Carmen; Fischer, Robert F.H.
Stabilization Techniques for Iterative Algorithms in Compressed Sensing
2021
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/arxiv2021_si.pdf
254.
Stern, Sebastian; Barakatain, Masoud; Frey, Felix; Fischer, Johannes K.; Fischer, Robert F.H.
Coded Modulation for Four-Dimensional Signal Constellations with Concatenated Non-Binary Forward Error Correction
Proceedings of 46th European Conference on Optical Communication (ECOC)
Publisher: Brussels, Belgium
December 2020
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ecoc2020_st.pdf
253.
Pfeiffer, Johannes; Schmidt-Langhorst, Carsten; Elschner, Robert; Frey, Felix; Emmerich, Robert; Schubert, Colja; Fischer, Robert F.H.
Security Gap Investigation of Multilevel Coding in Coherent Fiber-Optical Systems
ITG-Fachtagung Photonische Netze,
Publisher: Leipzig, Germany
November 2020
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgphoto2020_jp.pdf

Lectures:

Former Teaching University Erlangen:

  • Kanalcodierung (1998-2010)
  • Multiuser Communications and MIMO Systems (2010-2012)
  • Informationstheorie (2005-2010)
  • Praktikum „Software für die Mathematik“ (2003-2011)
  • Seminar „Nachrichtenteschnische Systeme“ (2009-2011)
  • Digitale Übertragung (1998-2011)
  • Signalübertragung und -verarbeitung (2002-2003)
  • Praktikum „Simulationstools“ (2007-2009)

Other Former Teaching:

There is always a number of open topics for Bachelor / Master theses. Please see the list of open theses.

Director