%0 Journal Article
%T Improved multi-user detection algorithm in uplink out-of synchronous TD-SCDMA systems<br>TD-SCDMA上行失步条件下一种改进的多用户检测算法
%A LIU Zheng-tang
%A REN Xiu-kun
%A HU Han-ying
%A DONG Min
%A <br>刘正堂
%A 任修坤
%A 胡捍英
%A 董民
%J 计算机应用研究
%D 2011
%I 
%X This paper presented a two-stage channel estimation algorithm and a related decorrelation interference cancellation multi-user detection algorithm in uplink out-of synchronous TD-SCDMA systems with strong MAI. It consisted of two parts. The first part which estimated the channel path attenuation and transmission delay was two-stage channel estimation, followed by the second part, which performed decorrelation and interference cancellation based on the result of two-stage channel estimation. Simulation results of out-of synchronous scenario with strong MAI demonstrate that the proposed algorithm exhibits better performance than conventional detector such as marched filter, joint detection and decorrelation algorithm.
%K TD-SCDMA
%K uplink out-of synchronization
%K two-stage channel estimation
%K multi-user detection<br>TD-SCDMA
%K 上行失步
%K 二级信道估计
%K 多用户检测
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=F32C7DEF351C88CC34A16C5BB280B869&yid=9377ED8094509821&vid=D3E34374A0D77D7F&iid=5D311CA918CA9A03&sid=AA817E2C4229A0FD&eid=C80867B8D588DBF3&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=8