Group-blind multi-user detection under multi-path channel

doi:10.1016/S1005-8885(09)60460-X

中国邮电高校学报(英文) ›› 2010, Vol. 17 ›› Issue (3): 45-51.doi: 10.1016/S1005-8885(09)60460-X

Group-blind multi-user detection under multi-path channel

王东昱¹,王景中³,杨俊²

1. 北方工业大学
2. 北京邮电大学计算机学院
3.

收稿日期:2009-09-23 修回日期:2010-02-04 出版日期:2010-06-30 发布日期:2010-06-29
通讯作者: 王东昱 E-mail:luck7891@163.com
基金资助:
国家级.国家自然科学基金

Group-blind multi-user detection under multi-path channel

Received:2009-09-23 Revised:2010-02-04 Online:2010-06-30 Published:2010-06-29

摘要/Abstract

摘要：

This article proposes an improved generalized side-lobe canceller (GSC) receiver structure based on a new group constraint, which is suitable to eliminate multiple-access interference (MAI), inter-symbol interference (ISI) in direct-sequence code-division multiple access (DS/CDMA) downlink multi-user system. The new group constraint is deduced to construct the group-blind adaptive multi-user detector. The analysis indicates that the improved GSC under the new constraint not only retains the property of suppressing ISI and canceling MAI, but also can extract useful information from the succeeding bit for the desired user. The simulations show that the improved GSC filter can cancel the MAI efficiently whether the wireless channel length is short or long, and achieve better performance than other compared filters.

关键词:

group-blind detection, GSC, constraint, ISI, MAI

Abstract:

Key words:

group-blind detection, GSC, constraint, ISI, MAI

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Group-blind multi-user detection under multi-path channel

Group-blind multi-user detection under multi-path channel

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