Space-time coding and Kalman filtering for time-selective fading channels

Zhiqiang Liu, Xiaoli Ma, Georgios B. Giannakis

Research output: Contribution to journalArticlepeer-review

197 Scopus citations

Abstract

This letter proposes a novel decoding scheme for Alamouti's space-time (ST) coded transmissions over time-selective fading channels that arise due to Doppler shifts and carrier frequency offsets. Modeling the time-selective channels as random processes, we employ Kalman filtering for channel tracking in order to enable ST decoding with diversity gains. Computer simulations confirm that the proposed scheme exhibits robustness to time-selectivity with a few training symbols.

Original languageEnglish (US)
Pages (from-to)183-186
Number of pages4
JournalIEEE Transactions on Communications
Volume50
Issue number2
DOIs
StatePublished - Feb 2002

Bibliographical note

Funding Information:
Paper approved by W. E. Ryan, the Editor for Modulation, Coding, and Equalization of the IEEE Communications Society. Manuscript received December 6, 2000; revised July 5, 2001. This work was supported by the ARO under Grant DAAG55-98-1-0336. This work was presented in part at MILCOM Conference, Los Angeles, CA, Oct. 22–25, 2000.

Keywords

  • Diversity methods
  • Kalman filtering
  • Space-time codes
  • Transmit antennas

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