Joint blind and semi-blind detection and channel estimation

RJ Piechocki, AR Nix, JP McGeehan, SMD Armour

Research output: Contribution to journalArticle (Academic Journal)peer-review

17 Citations (Scopus)

Abstract

A method for decoding of space–time trellis coded modulation (STTCM) without a need to transmit separate training sequences is developed. The novel technique uses only a single initial estimate to acquire and track multiple-input multiple-output (MIMO) channels while performing STTCM detection. The technique is akin to blind trellis search techniques (per-survival processing, PSP) and adaptive Viterbi. The solution consists of the deployment of a bank of Kalman filters. The bank of Kalman filters is coupled with Viterbi-type decoders, which produce tentative decisions based on Kalman channel predictions. In return the bank of Kalman filters use the tentative decisions to update and track the MIMO channels corresponding to a number of tracked hypotheses. The proposed technique is applicable to space–time single carrier systems in rapidly fading environments, and also to space–frequency coded MIMO-OFDM
Translated title of the contributionJoint blind and semi-blind detection and channel estimation algorithm for space-time trellis coded modulation over fast faded channels
Original languageEnglish
Pages (from-to)419 - 426
Number of pages8
JournalIEE Proceedings - Communications
Volume150
Issue number6
DOIs
Publication statusPublished - Dec 2003

Bibliographical note

Publisher: Institution of Electrical Engineers (IEE)
Rose publication type: Journal article

Sponsorship: The authors wish to thank Dr. Christophe Andrieu for very insightful comments and suggestions, and Toshiba TREL. Ltd. for sponsoring the work presented in this article

Keywords

  • OFDM modulation
  • Viterbi decoding
  • MIMO systems
  • channel estimation

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