%0 Journal Article
%T OFDM Amplify-and-Forward Two-Way Relaying for Multiuser MIMO Networks<br>多用户MIMO网络的OFDM放大转发双向中继策略
%A Zhao Rui Zou Ying-quan Li Chun-guo Yang Lu-xi
%A <br>赵睿
%A 邹应全
%A 李春国
%A 杨绿溪
%J 电子与信息学报
%D 2010
%I 
%X In multiuser MIMO communication networks, a new amplify-and-forward two-way relaying scheme is proposed employing OFDMA for the multiple access transmission in the first time slot and OFDM/SDMA for the broadcast transmission in the second time slot to improve the performance of the system through utilizing frequency diversity and spatial diversity. Considering the characteristic of two-way relaying, the relay beamforming matrixes are designed according to two methods respectively, i.e., signal to leakage and noise ratio (SLNR) and block diagonalization based zero-forcing (BDZF), on per subcarrier basis. The upper bound on the capacity region of this two-way relay network is also derived by using cut-set theory. Simulation results show that the proposed scheme outperforms three other two-way relaying schemes in terms of sum rate and can approach the upper bound of capacity region.
%K OFDM
%K SDMA
%K Amplify-and-forward two-way relay
%K Beamforming<br>OFDM
%K SDMA
%K 放大转发双向中继
%K 波束形成
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=145585BF518E01232C7245B0DFDA7721&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=38B194292C032A66&sid=7FAAB0292FA0D5D0&eid=6837BC93241057EF&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=9