Effects of channel estimation error on array processing based QO-STBC coded OFDM systems

Authors:
Haixia Zhang;Dongfeng Yuan;Hsiao-Hwa Chen;Josef A. Nossek
Affiliations:
WMCT Lab., Shandong University, China;WMCT Lab., Shandong University, China;Department of Engineering Science, National Cheng Kung University, Tainan City, Taiwan;Institute for Circuit Theory and Signal Processing, Munich University of Technology, Germany
Venue:
IEEE Communications Letters
Year:
2009

Citing 2
Cited 0

Space-Time Coding

Space-Time Coding
Space-time codes for high data rate wireless communication: performance criterion and code construction

IEEE Transactions on Information Theory

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Abstract

This letter addresses the issues on performance degradation caused by channel estimation error of quasi-orthogonal space-time block (QO-STBC) coded OFDM systems employing array processing decoder. The Least Square (LS) channel estimator is employed to obtain the required channel state information (CSI). Taking mean square error (MSE) as a performance metric, we evaluate the performance of the LS estimator in MIMO-OFDM systems over frequency selective channels, and its impact on symbol error rate (SER) using both analysis and simulations.