Multistage soft decision equalization technique for MIMO systems in frequency selective channels

doi:1005-8885 (2008) 02-0007-05

中国邮电高校学报(英文) ›› 2008, Vol. 15 ›› Issue (2): 7-11.doi: 1005-8885 (2008) 02-0007-05

Multistage soft decision equalization technique for MIMO systems in frequency selective channels

于江李晓军乐光新

Digital Communications and Networking Laboratory, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2007-10-15 修回日期:1900-01-01 出版日期:2008-06-30
通讯作者: 于江

Multistage soft decision equalization technique for MIMO systems in frequency selective channels

YU Jiang, LI Xiao-jun, YUE Guang-xin

Digital Communications and Networking Laboratory, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2007-10-15 Revised:1900-01-01 Online:2008-06-30
Contact: YU Jiang, LI Xiao-jun, YUE Guang-xin

摘要/Abstract

摘要：

This article proposes a multistage soft decision equalization (SDE) technique for block transmission over frequency selective multi-input multi-output (MIMO) channels. Using the Toeplitz structure, the general signal model can be converted into a series of small-sized sub-signal models. For each sub-signal model, soft interference cancellation (SIC) is used firstly to remove partial effects of interfering symbols, then max-log-MAP sphere decoder is performed to get the desired a posteriori information. Simulation shows that with lower complexity the proposed method outperforms the probability data association SDE and the Schnorr-Euchner sphere decoder.

关键词:

sphere;decoder,;SDE

Abstract:

Key words:

sphere decoder;SDE

中图分类号:

TN929.5

YU Jiang, LI Xiao-jun, YUE Guang-xin. Multistage soft decision equalization technique for MIMO systems in frequency selective channels[J]. Acta Metallurgica Sinica(English letters), 2008, 15(2): 7-11.

参考文献

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Multistage soft decision equalization technique for MIMO systems in frequency selective channels

Multistage soft decision equalization technique for MIMO systems in frequency selective channels

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