%0 Journal Article
%T Limited Feedback Precoding System Based on Hierarchical Codebook with Linear Receiver<br>线性接收机方案下的分层码本有限反馈预编码
%A Zhu Jun Huang Yong-ming Yang Lu-xi
%A <br>朱隽
%A 黄永明
%A 杨绿溪
%J 电子与信息学报
%D 2009
%I 
%X The performance loss of conventional Grassmannian codebook is analyzed. According to the analysis of unitary perturbation’s effects on channel capacity as well as the BER, a novel hierarchical codebook consisting of a Grassmannian main-codebook and a perturbation subcodebook proposed for multi-antenna systems with linear receivers is established, and corresponds with the two-step codeword selection scheme that uses the product of two codewords respectively selected from the main-codebook and the sub one as the ultimate precoder. Specifically to the design of subcodebook, two schemes is brought forward: rotation-based and householder transformation-based, and the superiority of the proposed codebook in terms of both the channel capacity and BER is further confirmed by computer simulations.
%K Precoding
%K Hierarchical codebook
%K Unitary perturbation subcodebook<br>预编码
%K 分层码本
%K 酉阵扰动子码本
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=F07F416B91646D4129B79CDA0FB1E4FD&yid=DE12191FBD62783C&vid=4AD960B5AD2D111A&iid=F3090AE9B60B7ED1&sid=3C934644D84F2E3C&eid=0FD0BAEB988A533B&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10