An RLS channel tracking algorithm with an ordered selection technique for MIMO-OFDM systems in time-selective fading channels

Pei Yun Tsai, Po Hsien Hsieh

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

In this paper, we propose an ordered selection technique to improve the performance of the decision-directed RLS adaptive channel tracking algorithm in 2x2 spatialmultiplexing MIMO-OFDM systems under high mobility. The proposed technique uses the decision of high reliability order during MIMO signal detection and then selectively activates the RLS adaptation only when less interference and error will be generated if a wrong decision is still made. Simulation results show that the channel tracking accuracy of the proposed approach outperforms the 2D-RLS algorithm and the conventional linear interpolation algorithm. Moreover, we also show that both ordering and selection are effective and necessary to greatly suppress the error propagation and coefficient misadjustment. With the proposed technique, the system performance has obvious SNR improvements.

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主出版物標題2009 International Conference on Wireless Communications and Signal Processing, WCSP 2009
DOIs
出版狀態已出版 - 2009
事件2009 International Conference on Wireless Communications and Signal Processing, WCSP 2009 - Nanjing, China
持續時間: 13 11月 200915 11月 2009

出版系列

名字2009 International Conference on Wireless Communications and Signal Processing, WCSP 2009

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???event.eventtypes.event.conference???2009 International Conference on Wireless Communications and Signal Processing, WCSP 2009
國家/地區China
城市Nanjing
期間13/11/0915/11/09

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