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Joint blind and semi-blind detection and channel estimation

Research output: Contribution to journalArticle

Original languageEnglish
Pages419 - 426
Number of pages8
JournalIEE Proceedings - Communications
Journal publication dateDec 2003
Volume150
Journal issue6
DOIs
StatePublished

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

Additional information

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

Research areas

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

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