Performance evaluation of a data-derived iterative channel estimator for a COFDM system with receive diversity

ASH Dowler, AR Nix

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

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Abstract

A low-complexity data-derived iterative channel estimator is evaluated in a receive diversity system for two and four receive antennas. The performance is shown almost to match the ideal (perfect channel knowledge) case in a low-Doppler environment. At higher Doppler frequencies, performance is still good, but deviates from the ideal case. A Wiener filter tracking algorithm is proposed that is advantageous at lower E/sub b//N/sub 0/ ranges, however linear tracking is found to be better at higher E/sub b//N/sub 0/ ratios and therefore further improves performance for higher order modulation schemes such as 16-QAM.
Translated title of the contributionPerformance evaluation of a data-derived iterative channel estimator for a COFDM system with receive diversity
Original languageEnglish
Pages (from-to)1224 - 1228
Number of pages4
JournalIEEE 58th Vehicular Technology Conference, 2003 (VTC 2003-Fall)
Volume2
Publication statusPublished - Oct 2003
Event58th Vehicular Technology Conference 2003 (VTC 2003-Fall) - Orlando, United States
Duration: 1 Oct 2003 → …

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Name and Venue of Conference: Vehicular Technology Conference 2003 (VTC 2003-Fall)
Rose publication type: Conference contribution

Sponsorship: Alex Dowler would like to acknowledge the financial support of the Engineering and Physical Sciences Research Council and the financial and technical support of Toshiba
Research Europe Limited, Bristol.

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Keywords

  • Data derived
  • Channel estimation
  • COFDM
  • Receive diversity
  • Maximal Ratio Combining

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