Realizable equalizers for frequency selective MIMO channels with cochannel interference

  • Authors:

  • Sander Wahls;Holger Boche

  • Affiliations:

  • Technische Universität Berlin, Heinrich-Hertz-Lehrstuhl für Mobilkommunikation, Einsteinufer 25, 10587, Germany;Technische Universität Berlin, Heinrich-Hertz-Lehrstuhl für Mobilkommunikation, Einsteinufer 25, 10587, Germany

  • Venue:
  • ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
  • Year:
  • 2009

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Abstract

We consider realizable linear and decision feedback equalization (DFE) of frequency selective multiple-input multiple-output (MIMO) channels in the presence of cochannel interference (CCI). Equalizers that are optimal in the minimum mean square error (MMSE) sense are derived with and without zero forcing (ZF) constraint. It is shown that all problems can be reduced to H2 optimal deconvolution, for which a novel algorithm is presented.