Joint frequency selective channel estimation and turbo decoding in space time systems

Sefi Ronen, Tolga Duman

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

A non-coherent multiple input multiple output (MIMO) coded communication system over a frequency selective (FS) block fading channel is considered. A theoretical limit for the channel estimation error is established via a closed form derivation of the modified Cramér-Rao bound (MCRB) (more precisely, a tight lower bound to it) for the underlying channel model and equi-power signal constellations. Furthermore, it is shown that, for a practical coded MIMO system that employs turbo coding and an appropriate iterative decoding, the resulting mean squared error (MSE) in channel estimation approaches very closely to the derived theoretical limit.

Original languageEnglish (US)
Article number4712696
Pages (from-to)4813-4817
Number of pages5
JournalIEEE Transactions on Wireless Communications
Volume7
Issue number12
DOIs
StatePublished - Dec 1 2008

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Keywords

  • Cramér-Rao bound, turbo coding.
  • Rayleigh fading, channel estimation, Cramér-Rao bound, modified
  • Space-time coding, frequency-selective fading,

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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