%0 Journal Article
%T Blind Space-Time Multi-user Detection Based on Interfering Subspace Projection in MIMO-CDMA Systems<br>MIMO系统中基于干扰子空间投影的盲空时多用户检测算法
%A Yao Yi-jia
%A Zhu Shi-hua
%A Hu Gang
%A Zhang Fang
%A <br>姚一佳
%A 朱世华
%A 胡刚
%A 张芳
%J 电子与信息学报
%D 2007
%I 
%X A blind space-time Multi-User Detection(MUD)algorithm is proposed for multi-antenna Code Division Multiple Access(CDMA)systems.The proposed algorithm exploits the signal structures in both time domain and spatial domain for interference rejection.Specifically,the proposed algorithm integrates Space-Time Coding(STC)with channel estimation by using the structural features of both Alamouti STC and the Multiple Input Multiple Output(MIMO)channel. The Multiple Access Interference(MAI)is suppressed by projecting the received signal onto the orthogonal complement of the estimated interference subspace.Furthermore,the proposed algorithm can adaptively trace the variation of the wireless channels with low complexity.Simulation results show that the algorithm can effectively suppress the MAI of space-time CDMA systems and significantly improve the system performance.
%K Space-time processing
%K MUD
%K Interference subspace projection
%K MIMO
%K CDMA<br>空时处理
%K 多用户检测
%K 干扰子空间投影
%K 多输入多输出
%K 码分多址
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=3C7FCA5C52D35786&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=9CF7A0430CBB2DFD&sid=8C0169D6BEAD5F6C&eid=96FE8C839284324D&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10