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

Address: University of Bremen Dept. of Communications Engineering Otto-Hahn-Allee NW1 D-28359 Bremen - Germany Room :NW1 N2360 Phone : +49 421 218 62389 E-mail :

Teaching

Research

• High Mobility MIMO-OFDM Transmission With Realistic Propagation Scenarios
• 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
• Adaptive blind and semi-blind equalization and channel estimation for frequency-selective MIMO channels
• Multicarrier systems for fast moving receivers at high data rates
• Robust speaker recognition employing multichannel concepts for suppressing acoustic interference
• Joint optimization of echo cancellers and multichannel noise suppression systems for stereo speech transmission

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Publications

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2010

• Iterative Pre-Compensation of I/Q Imbalances in an Adaptive 2.4 GHz MIMO-OFDM System BibT_EX
  M. Petermann, M. Niemiec, D. Wübben, K.-D. Kammeyer, M. Stefer, M. Schneider
  International ITG Workshop on Smart Antennas (WSA 2010), Bremen, Germany, 23. - 24. February 2010
• Comparison of Distributed LDPC Coding Schemes for Decode-and-Forward Relay Channels BibT_EX
  M. Wu, P. Weitkemper, D. Wübben, K.-D. Kammeyer
  International ITG Workshop on Smart Antennas (WSA 2010), Bremen, Germany, 23. - 24. February 2010
• An Improved Physical Layer Network Coding Scheme for Two-Way Relay Systems BibT_EX
  Y. Lang, D. Wübben, K.-D. Kammeyer
  International ITG Workshop on Smart Antennas (WSA 2010), Bremen, Germany, 22. - 23. February 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
  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

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