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
227.
Dhannoon, Zaid; Fischer, Robert F.H.
Performance of Run-Length-Limited Codes in Visible-Light Communications
Proceedings of 12. International ITG Conference on Systems, Communications, and Coding (SCC)
February 2019
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2019_df.pdf
226.
Pfeiffer, Johannes; Fischer, Robert F.H.
Signal Constellations for Physical-Layer Security
Proceedings of 12. International ITG Conference on Systems, Communications, and Coding (SCC)
February 2019
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2019_pf.pdf
225.
Stern, Sebastian; Frey, Felix; Fischer, Johannes K.; Fischer, Robert F.H.
Two-Stage Dimension-Wise Coded Modulation for Four-Dimensional Hurwitz-Integer Constellations
Proceedings of 12. International ITG Conference on Systems, Communications, and Coding (SCC)
February 2019
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2019_sfff.pdf
224.
Frey, Felix; Emmerich, Robert; Schubert, Colja; Fischer, Johannes K.; Fischer, Robert F.H.
Improved Perturbation-based Fiber Nonlinearity Compensation
Proceedings of European Conference and Exhibition on Optical Communication (ECOC)
Publisher: Roma, Italy
September 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ecoc2018_fr.pdf
223.
Bucher, Stephan; Ragab, Ahmed N.; Yammine, George; Fischer, Robert F.H.; Waldschmidt, Christian
Antenna Design for Noncoherent Massive MIMO Systems
International Symposium on Wireless Communication Systems (ISWCS18)
Publisher: Lisbon, Portugal
August 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/iswcs2018_bu.pdf
222.
Knill, Christina; Schweizer, Benedikt; Sparrer, Susanne; Roos, Fabian; Fischer, Robert F.H.; Waldschmidt, Christian
High Range and Doppler Resolution by Application of Compressed Sensing Using Low Baseband Bandwidth OFDM Radar
IEEE Transactions on Microwave Theory and Techniques, 66 (7) :3535—3546
July 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trmtt2018_kn.pdf
221.
Sparrer, Susanne; Fischer, Robert F.H.
Bias Compensation in Iterative Soft-Feedback Algorithms with Application to (Discrete) Compressed Sensing
IEEE Statistical Signal Processing Workshop 2018
Publisher: Freiburg, Germany
June 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/sspw2018_sp.pdf
220.
Stern, Sebastian; Fischer, Robert F.H.
Quaternion-Valued Multi-User MIMO Transmission via Dual-Polarized Antennas and QLLL Reduction
Proceedings of 25th International Conference on Telecommunications (ICT)
Publisher: Saint Malo, France
June 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ict2018_st.pdf
219.
Pfeiffer, Johannes; Fischer, Robert F.H.
Multilevel Coding for Physical-Layer Security in Optical Networks
ITG-Fachtagung Photonische Netze
May 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgphoto2018_pf.pdf
218.
Bucher, Stephan; Yammine, George; Fischer, Robert F.H.; Waldschmidt, Christian
Influence of Channel Parameters on Noncoherent Massive MIMO Systems
Proceedings of International ITG/IEEE Workshop on Smart Antennas (WSA),
Publisher: Bochum, Germany
March 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wsa2018_bu.pdf
217.
Yammine, George; Stern, Sebastian; Fischer, Robert F.H.
Precoding for MIMO Uplink Transmission Over EM-Lens-Based Correlated Channels
Proceedings of International ITG/IEEE Workshop on Smart Antennas (WSA),
Publisher: Bochum, Germany
March 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wsa2018_ya.pdf
216.
Fischer, Robert F.H.; Huber, Johannes B.; Stern, Sebastian; Guter, Paulus M.
Multilevel Codes in Lattice-Reduction-Aided Equalization
International Zurich Seminar on Communications
Publisher: Zurich, Switzerland
February 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/izs2018_fi.pdf
215.
Frey, Felix; Fischer, Johannes K.; Fischer, Robert F.H.
Probability Distributions of Nonlinear Distortions Obtained from the Sampled Nonlinear Transfer Function
ITG-Workshop 5.3.1
Publisher: Helmut-Schmidt-Universität Hamburg, Hanburg, Germany
February 2018
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itg531_2018_fr.pdf
214.
Sparrer, Susanne; Fischer, Robert F.H.
Unveiling Bias Compensation in Turbo-Based Algorithms for (Discrete) Compressed Sensing
December 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/csa2017_sp.pdf
213.
Frey, Felix; Molle, Lutz; Emmerich, Robert; Schubert, Colja; Fischer, Johannes K.; Fischer, Robert F.H.
Single-step Perturbation-based Nonlinearity Compensation of Intra- and Inter-Subcarrier Nonlinear Interference
Proceedings of European Conference and Exhibition on Optical Communication (ECOC)
Publisher: Gotheburg, Sweeden
September 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ecoc2017_fr.pdf
212.
Sparrer, Susanne; Fischer, Robert F.H.
Unveiling Bias Compensation in Turbo-Based Algorithms for (Discrete) Compressed Sensing
2017 European Signal Processing Conference (EUSIPCO 2017)
Publisher: Kos, Greece
September 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/eusipco2017_sp.pdf
211.
Yammine, George; Fischer, Robert F.H.
Performance/Complexity Comparison of SVD vs. SURV for Subspace Estimation in Noncoherent Massive MIMO
International Symposium on Wireless Communication Systems (ISWCS)
Publisher: Bologna, Italy
August 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/iswcs2017_ya.pdf
210.
Stern, Sebastian; Fischer, Robert F.H.
V-BLAST in Lattice Reduction and Integer Forcing
Proceedings of International Symposium on Information Theory (ISIT),
Publisher: Aachen, Germany
July 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/isit2017_st.pdf
209.
Frey, Felix; Wäckerle, Florian; Fischer, Johannes K.; Fischer, Robert F.H.
Optimized Detection and Decoding of 4D Signals for the Nonlinear Fiber-optical Channel
Proceedings Signal Processing in Photonic Communications
Publisher: New Orleans, LA, USA
July 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/sppc2017_fr.pdf
208.
Forutan, Vahid; Elschner, Robert; Schmidt-Langhorst, Carsten; Schubert, Colja; Fischer, Robert F.H.
Towards Information-Theoretic Security in Optical Networks
ITG-Fachtagung Photonische Netze
Publisher: Leipzig, Germany
May 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgphoto2017_fo.pdf
207.
Stern, Sebastian; Ramos Vazquez, Yeicatl; Fischer, Robert F.H.
Equalization and Precoding in Multi-User MIMO Relaying Systems and Their Diversity Bottleneck
Proceedings of International ITG/IEEE Workshop on Smart Antennas (WSA)
Publisher: Berlin, Germany
March 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wsa2017_syf.pdf
206.
Frey, Felix; Fischer, Johannes K.; Fischer, Robert F.H.
On the Frequency Dependence of the FWM Efficiency and its Application to Analytical Channel Models
Fachgruppe ITG 5.3.1,
February 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itg531_2017_fr.pdf
205.
Sparrer, Susanne; Fischer, Robert F.H.
Algorithms for the Iterative Estimation of Discrete-Valued Sparse Vectors
Proceedings of 11. International ITG Conference on Systems, Communications, and Coding (SCC)
Publisher: Hamburg, Germany
February 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2017_sf.pdf
204.
Frey, Felix; Elschner, Robert; Schmidt-Langhorst, Carsten; Emmerich, Robert; Schubert, Colja; Fischer, Johannes K.; Fischer, Robert F.H.
Investigation of Nonlinear Inter-channel Interference in Heterogeneous Flexible Optical Networks
Proceedings of 11. International ITG Conference on Systems, Communications, and Coding (SCC)
Publisher: Hamburg, Germany
February 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2017_hhi.pdf
203.
Cyran, Michael; Schotsch, Birgit; Huber, Johannes B.; Fischer, Robert F.H.
Layering of Communication Networks and a Forward-Backward Duality
Proceedings of 11. International ITG Conference on Systems, Communications, and Coding (SCC)
Publisher: Hamburg, Germany
February 2017
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2017_cshf.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