Model-based channel estimation and codeword selection for correlated MIMO channels

Chien Chun Cheng*, Yen Chih Chen, Yu-Ted Su, Hikmet Sari

*Corresponding author for this work

研究成果: Conference contribution同行評審

摘要

For a closed loop MIMO system to provide outstanding performance, the receiver needs to feedback accurate channel state information, which in turn requires a large codebook size. In this paper, we present a new codeword selection scheme based on a model-based channel estimator. Our scheme performs simultaneous channel estimation and codeword selection by exploiting the structures of the associated MIMO spatial channel and the codebook used. For a DFT-based codebook with arbitrary size, only a quantization operation is needed to select a proper codeword in a correlated fading environment. Using industry-approved standard channel models in simulating the system performance, we show that our low-complexity codeword selection scheme does outperform the scheme based on the conventional least-square estimator.

原文English
主出版物標題2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012
頁面540-544
頁數5
DOIs
出版狀態Published - 2 十一月 2012
事件2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012 - Cesme, Turkey
持續時間: 17 六月 201220 六月 2012

出版系列

名字IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC

Conference

Conference2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012
國家Turkey
城市Cesme
期間17/06/1220/06/12

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