%0 Journal Article
%T Resource allocation algorithm for MIMO-OFDM systems withimperfect feedback<br>一种非理想反馈MIMO-OFDM系统资源分配算法
%A DU Chong
%A CHEN Song
%A WU Guo-feng
%A HU Han-ying
%A <br>杜　崇
%A 陈　松
%A 仵国锋
%A 胡捍英
%J 计算机应用研究
%D 2012
%I 
%X This paper proposed an adaptive subcarrier allocation algorithm for multiuser MIMO-OFDM systems with imperfect feedback. Because of feedback delay and feedback error in actual environment, this algorithm used the confidence coefficient and equivalent variance to indicate the feedback CSI quality. The proposed algorithm aimed at maximizing system throughput and under the constraint of transmit power and BER, assigned the subcarrier to the best user step by step, and then implemented water-filling power allocation. The theoretical analysis and simulation results show that the algorithm can take full advantage of multiuser diversity, and improve the system capacity effectively.
%K MIMO
%K OFDM
%K feedback delay
%K feedback error
%K resource allocation<br>多输入多输出
%K 正交频分复用
%K 反馈时延
%K 反馈误差
%K 资源分配
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=F6B2E1193D3BD8E6A1A8ABA97C594BDD&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=708DD6B15D2464E8&sid=73271FEFAE24FF2B&eid=F1439864AEBD5B73&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=12