Blind channel estimation for single-carrier space-time block coded transmission with frequency-domain equalization: A diagonal precoding based approach

Jwo-Yuh Wu*, Ta-Sung Lee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Relying on non-redundant diagonal precoding and i.i.d. source assumption, we propose a blind channel estimation scheme for single-carrier frequency-domain equalization based space-time block coded systems. The proposed method exploits the precoding-induced linear signal structure in the conjugate cross-correlation between the two temporal block receive signals as well as the circulant channel matrix property, and can yield exact solutions whenever the channel noise is circularly Gaussian and the receive data statistic is perfectly obtained. The channel estimation formulation builds on rearranging the set of linear equations relating the entries of conjugate cross-correlation matrix and products of channel impulse responses into one with a distinctive block-circulant with circulant-block (BCCB) structure. This allows a simple identifiability condition depending on precoder parameters alone, and also provides a natural yet effective optimal precoder design framework against imperfect data estimation. We consider the data mismatch as a deterministic perturbation and propose to minimize the condition number of the BCCB system matrix, leading to a simple closed-form optimal solution. Numerical examples are used to illustrate the performance of the proposed method.

Original languageEnglish
Title of host publication2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC
DOIs
StatePublished - 1 Dec 2006
Event2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC - Cannes, France
Duration: 2 Jul 20065 Jul 2006

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

Conference

Conference2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC
CountryFrance
CityCannes
Period2/07/065/07/06

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    Wu, J-Y., & Lee, T-S. (2006). Blind channel estimation for single-carrier space-time block coded transmission with frequency-domain equalization: A diagonal precoding based approach. In 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC [4153850] (IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC). https://doi.org/10.1109/SPAWC.2006.346362