Effects of Channel Estimation Error on Array Processing Based QO-STBC Coded OFDM Systems

被引：3

作者：

Zhang, Haixia ^{[2
]}

Yuan, Dongfeng ^{[2
]}

Chen, Hsiao-Hwa ^{[1
]}

Nossek, Josef A. ^{[3
]}

机构：

[1] Natl Cheng Kung Univ, Dept Engn Sci, Tainan 70101, Taiwan

[2] Shandong Univ, WMCT Lab, Jinan, Peoples R China

[3] Tech Univ Munich, Inst Circuit Theory & Signal Proc, Munich, Germany

来源：

IEEE COMMUNICATIONS LETTERS | 2009年 / 13卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Array processing; QO-STBC; LS channel estimator; channel state information; TIME BLOCK CODE;

D O I：

10.1109/LCOMM.2009.081031

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

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.

引用

页码：212 / 214

页数：3

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