Prof. Dr.-Ing. Karl-Dirk Kammeyer (Head of Department)

Address: University of Bremen Dept. of Communications Engineering Otto-Hahn-Allee NW1 D-28359 Bremen - Germany Room : NW1 N2351 Phone : +49 421 218 62389 Fax : +49 421 218 3341 E-mail :

Teaching

• Basic Communications Laboratory
• Communications Technology II
• Communications Technology Laboratory
• Communications Technology I
• Digital Signal Processing I
• Digital Signal Processing II
• Grundlagen der Nachrichtentechnik
• Selected Problems in Digital Signal Processing and Mobile Communications

Research

• Reciprocity in Wireless Communication Systems
• High Mobility MIMO-OFDM Transmission With Realistic Propagation Scenarios
• Orthogonal Frequency Division Multiplex (OFDM) in Fiber-Optical High Speed Transmission
• Increasing reliability in mobile relay-networks with cooperative transmission schemes
• Robust adaptive Multi-User Multi-Antenna systems with imperfect Channel State Information
• Combined optimization of echo compensation and and listening room compensation for hands-free teleconferencing
• Information Theoretic Analysis of Multiple Access Schemes with Adaptive Precoding for Long Term Evolution (LTE)
• Study for wireless data-transmission in cars
• Quality of Service-Aware Cross-Layer Optimization in Heterogeneous Multiuser MIMO-OFDM Systems
• Development and Comparison of Multiple Antenna Concepts

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Publications

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2010

• Evaluation of Encoded MU-MISO-OFDM Systems in TDD Mode with Non-ideal Channel Reciprocity BibT_EX
  M. Petermann, D. Wübben, K.-D. Kammeyer
  Accepted for publication at the 8th International ITG Conference on Source and Channel Coding (SCC 2010), Siegen, Germany, 18. - 21. January 2010

2009

• Subcarrier Selection for IM/DD OFDM Systems BibT_EX
  H. Paul, K.-D. Kammeyer
  35th European Conference and Exhibition on Optical Communication (ECOC 2009), Wien, Austria, 20. - 24. September 2009
• Distributed Interleave-Division Multiplexing Space-Time Codes for Coded Relay Networks BibT_EX
  P. Weitkemper, D. Wübben, K.-D. Kammeyer
  Sixth International Symposium on Wireless Communication Systems 2009 (ISWCS’09), Siena, Italy, 7. - 9. September 2009
• Influence of Non-reciprocal Transceivers at 2.4 GHz in Adaptive MIMO-OFDM Systems BibT_EX
  M. Stefer, M. Petermann, M. Schneider, D. Wübben, K.-D. Kammeyer
  14th International OFDM-Workshop 2009 (InOWo 09), Hamburg, Germany, 2. - 3. September 2009
• Link Adaptation for MIMO-OFDM with partial CSI BibT_EX
  C. Bockelmann, D. Wübben, K.-D. Kammeyer
  14th International OFDM Workshop 2009 (InOWo '09), Hamburg, Germany, 2. - 3. September 2009
• Distributed IDM-STC versus OFDM-CDD in Two-Hop Relay-Networks BibT_EX
  P. Weitkemper, D. Wübben, K.-D. Kammeyer, Sebastian Vorköper, Volker Kühn
  14th International OFDM Workshop 2009 (InOWo '09), Hamburg, Germany, 2. - 3. September 2009
• Calibration of Non-Reciprocal Transceivers for Linearly Pre-Equalized MU-MISO-OFDM Systems in TDD Mode BibT_EX
  M. Petermann, D. Wübben, K.-D. Kammeyer
  14th International OFDM-Workshop 2009 (InOWo 09), Hamburg, Germany, 2. - 3. September 2009
• Noise Reduction for Optical OFDM Channel Estimation BibT_EX
  H. Paul, A. Ali, K.-D. Kammeyer, W. Rosenkranz
  14th International OFDM Workshop 2009 (InOWo '09), Hamburg, Germany, 2. - 3. September 2009
• Impact of Modulator Bias on the OSNR Requirement of Direct-Detection Optical OFDM BibT_EX
  J. Leibrich, A. Ali, H. Paul, W. Rosenkranz, K.-D. Kammeyer
  IEEE Photonics Technology Letters, Vol. 21, No. 15, pp. 1033-1035, August 2009
• Equivalent Baseband Channels of Systems Using Envelope Detection BibT_EX
  H. Paul, K.-D. Kammeyer
  Elsevier GmbH, International Journal of Electronics and Communications (AEÜ), Vol. 63, No. 7, pp. 533-540, July 2009

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