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
152.
Schenk, Andreas; Fischer, Robert F.H.
Low-Complexity Soft-Output Detection for Impulse-Radio Ultra-Wideband Systems Via Combining Multiple Observations
Proceedings of International Zurich Seminar (IZS), Page 119—122
Publisher: Zurich, Switzerland
March 2012
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/izs2012_sc.pdf
151.
Schenk, Andreas; Fischer, Robert F.H.
Design Rules for Bit-Interleaved Coded Impulse-Radio Ultra-Wideband Modulation with Autocorrelation-Based Detection
Proceedings of IEEE International Symposium on Wireless Communication Systems (ISWCS), Page 146—150
Publisher: Aachen, Germany
November 2011
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/iswcs2011_sc.pdf
150.
Schenk, Andreas; Fischer, Robert F.H.
Capacity of BICM Using (Bi-)Orthogonal Signal Constellations in the Wideband Regime
Proceedings of IEEE International Conference on Ultra-Wideband, Page 595—599
Publisher: Bologna, Italy
September 2011
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/icuwb2011_sc.pdf
149.
Schenk, Andreas; Fischer, Robert F.H.
Compressed-Sensing (Decision-Feedback) Differential Detection in Impulse-Radio Ultra-Wideband Systems
Proceedings of IEEE International Conference on Ultra-Wideband, Page 121—125
Publisher: Bologna, Italy
September 2011
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/icuwb2011_sch.pdf
148.
Fischer, Robert F.H.; Windpassinger, Christoph; Stierstorfer, Clemens; Siegl, Christian; Schenk, Andreas; Abay, Ümit
Lattice-Reduction-Aided MMSE Equalization and the Successive Estimation of Correlated Data
International Journal of Electronics and Communications (AEÜ), 65 (8) :688—693
August 2011
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/aeu2011_fi.pdf
147.
Siegl, Christian; Fischer, Robert F.H.
Selected Basis for PAR Reduction in Multi-User Downlink Scenarios Using Lattice-Reduction-Aided Precoding
EURASIP Journal on Advances in Signal Processing
July 2011
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/eurasip2011_si.pdf
146.
Schenk, Andreas; Fischer, Robert F.H.
Decision-Feedback Differential Detection in Impulse-Radio Ultra-Wideband Systems
IEEE Transactions on Communications, 59 (6) :1604—1611
June 2011
DOI:10.1109/tcomm.2011.042111.100518
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trcom2011_sc.pdf
145.
Fischer, Robert F.H.; Siegl, Christian
Peak-to-Average Power Ratio Reduction in Multi-Antenna Scenarios
In Rohling, H., Editor, OFDM — Concepts for Future Communication Systems from Signals and Communication Technology
Page 69—80
Publisher: Springer Verlag, Berlin, Heidelberg
1 Edition
May 2011
69—80
DOI:10.1007/978-3-642-17496-4_3
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/sppofdm2011_fisi.pdf
144.
Fischer, Robert F.H.; Stierstorfer, Clemens
Single- vs. Multicarrier Transmission in MIMO and Multiuser Scenarios
In Rohling, H., Editor, OFDM - Concepts for Future Communication Systems from Signals and Communication Technology
Page 81—89
Publisher: Springer Verlag, Berlin, Heidelberg
1 Edition
May 2011
81—89
DOI:10.1007/978-3-642-17496-4_3
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/sppofdm2011_fist.pdf
143.
Fischer, Robert F.H.
Efficient Lattice-Reduction-Aided MMSE Decision-Feedback Equalization
Proceedings of International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Publisher: Prag, Czech Republic
May 2011
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/icassp2011_fi.pdf
142.
Abay, Ümit; Fischer, Robert F.H.
Comparison of Generalized Tomlinson-Harashima Precoding Strategies for the Broadcast Channel
Proceedings of International ITG/IEEE Workshop on Smart Antennas (WSA)
Publisher: Aachen
February 2011
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wsa2011_ab.pdf
141.
Fischer, Robert F.H.; Siegl, Christian
Probabilistic Signal Shaping in MIMO OFDM via Successive Candidate Generation
European Transactions on Telecommunications (ETT), 21 (7) :648—654
November 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ett2010_fi.pdf
140.
Fischer, Robert F.H.
From Gram-Schmidt Orthogonalization via Sorting and Quantization to Lattice Reduction
Proceedings of Joint Workshop on Coding and Communications (JWCC),
Publisher: Santo Stefano Belbo, Italy
October 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/jwcc2010_fi.pdf
139.
Siegl, Christian; Fischer, Robert F.H.; Mustafin, Eduard
Active Constellation Extension for Increasing the Capacity of Clipped OFDM
Proceedings of 15. International OFDM Workshop (InOWo)
Publisher: Hamburg, Germany
September 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ofdmwork2010_si.pdf
138.
Stierstorfer, Clemens; Siegl, Christian; Fischer, Robert F.H.; Wild, Thorsten; Hoek, Cornelis
Network MIMO Downlink Transmission
Proceedings of 15. International OFDM Workshop (InOWo)
Publisher: Hamburg, Germany
September 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/ofdmwork2010_st.pdf
137.
Schenk, Andreas; Fischer, Robert F.H.
Soft-Output Sphere Decoder for Multiple-Symbol Differential Detection of Impulse-Radio Ultra-Wideband
Proceedings of International Symposium on Information Theory (ISIT), Page 2258—2262
Publisher: Austin, TX, USA
June 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/isit2010_sc.pdf
136.
Siegl, Christian; Fischer, Robert F.H.
Asymptotic Performance Analysis and Successive Selected Mapping for PAR Reduction in OFDM
IEEE Transactions on Signal Processing, 58 (6) :3228—3237
April 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trsp2010_si.pdf
135.
Siegl, Christian; Fischer, Robert F.H.
Selected Mapping with Explicit Transmission of Side Information
Proceedings of Wireless Communications and Networking Conference
Publisher: Sydney, Australia
April 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wcnc2010_si.pdf
134.
Schenk, Andreas; Fischer, Robert F.H.
Multiple-Symbol-Detection-Based Noncoherent Receivers for Ultra-Wideband Impulse-Radio
Proceedings of International Zurich Seminar (IZS)
Publisher: Zurich, Switzerland
March 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/izs2010_sc.pdf
133.
Stierstorfer, Clemens; Fischer, Robert F.H.; Huber, Johannes B.
Optimizing BICM with Convolutional Codes for Transmission over the AWGN Channel
Proceedings of International Zurich Seminar (IZS)
Publisher: Zurich, Switzerland
March 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/izs2010_st.pdf
132.
Siegl, Christian; Fischer, Robert F.H.
Transmission and Detection of Side Information for Selected Mapping in MIMO OFDM
Proceedings of International ITG/IEEE Workshop on Smart Antennas (WSA)
Publisher: Bremen, Germany
March 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/wsa2010_si.pdf
131.
Schenk, Andreas; Fischer, Robert F.H.
A Stopping Radius for the Sphere Decoder: Complexity Reduction in Multiple-Symbol Differential Detection
Proceedings of 8. International ITG Conference on Source and Channel Coding (SCC)
Publisher: Siegen, Germany
January 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2010_sc.pdf
130.
Fischer, Robert F.H.
Capacity of Clipped 4-QAM-OFDM
Proceedings of 8. International ITG Conference on Source and Channel Coding (SCC)
Publisher: Siegen, Germany
January 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2010_fi.pdf
129.
Siegl, Christian; Fischer, Robert F.H.
Selected Mapping with Implicit Transmission of Side Information using Discrete Phase Rotations
Proceedings of 8. International ITG Conference on Source and Channel Coding (SCC)
Publisher: Siegen, Germany
January 2010
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/itgscc2010_si.pdf
128.
Fischer, Robert F.H.; Siegl, Christian
Peak-to-Average Power Ratio Reduction in Single- and Multi-Antenna OFDM via Directed Selected Mapping
IEEE Transactions on Communications, 57 (11) :3205—3208
November 2009
File:pdfhttps://nt.uni-ulm.de/publications/pdf/intern/trcom2009_fi.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