%0 Journal Article
%T A Transmit Preprocessing Technique for Downlink SDMA in Multi-user MIMO Channels<br>多用户MIMO系统下行链路的空分多址发送预滤波技术研究
%A Wang Ya-feng
%A Zhang Jun-feng
%A Zhang Jian
%A Yang Da-cheng
%A <br>王亚峰 张峻峰
%A 章 健
%A 杨大成
%J 电子与信息学报
%D 2006
%I 
%X A transmit preprocessing technique for downlink spatial multiplexing in multi-user MIMO channels is proposed in this paper. Through adding additional constraint to the joint TX-RX MMSE optimization scheme the equivalent channel can be changed from block-diagonalization to complete diagonalization. Thus both MUI (Multi-User Interference) and per-user multi-stream interference can be canceled simultaneously. Besides the general advantage of the algorithms based on block-diagonalization, the modified algorithm is much more feasible and has the advantage of simplifying the receivers.
%K Spatial-Division Multiple Access(SDMA)
%K Multi-User Interference(MUI)
%K Block-diagonalization
%K Complete diagonalization<br>空分多址
%K 多用户干扰
%K 块对角化
%K 完全对角化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=4CC1E9639BC611A8&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=E158A972A605785F&sid=20D29EF591CB2C94&eid=B60458D1AE87BCD1&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10