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Optimal Channel Shortening for MIMO and ISI Channels

Author

Summary, in English

We deal with the construction of optimal channel shortening, also known as combined linear Viterbi detection, algorithms for ISI and MIMO channels. In the case of MIMO channel shortening, the tree structure to represent MIMO signals is replaced by a trellis. The optimization is performed from an information theoretical perspective and the achievable information rates of the shortened models are derived and optimized. Closed form expressions for all components of the optimal detector of the class are derived. Furthermore, we show that previously published channel shortening algorithms can be seen as special cases of the derived model.

Publishing year

2012

Language

English

Pages

810-818

Publication/Series

IEEE Transactions on Wireless Communications

Volume

11

Issue

2

Document type

Journal article

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • combined linear Viterbi detection
  • theory
  • trellis optimization
  • applied Shannon
  • optimization
  • trellis detection
  • receiver
  • BCJR Algorithm
  • information
  • rate computation
  • MIMO
  • inter-symbol interference
  • reduced complexity detection
  • Equalization

Status

Published

ISBN/ISSN/Other

  • ISSN: 1536-1276