%0 Journal Article
%T EM Iterative Channel Estimation for Turbo Coded MIMO-OFDM Systems<br>Turbo编码MIMO-OFDM系统中的EM迭代信道估计
%A Qiao Xiao-qiang
%A Cai Yue-ming
%A Xu Xin
%A Xu You-yun
%A <br>乔晓强
%A 蔡跃明
%A 徐 信
%A 徐友云
%J 电子与信息学报
%D 2006
%I 
%X The channel estimation for Turbo coded Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems in frequency selective fading channels is studied. A method combining Turbo codes and iterative decoding with Expectation-Maximization (EM)-type iterative channel estimation algorithms is presented, which can improve the system performance greatly. The algorithms can also be applied to the very bad channel environments. Furthermore, from the simulation, the system performance with EM-type iterative channel estimation algorithms outperforms that with simplified LS channel estimation algorithms.
%K MIMO-OFDM<br>Turbo迭代译码
%K EM迭代信道估计
%K 最小二乘信道估计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=4F8CFD0EA86D9722&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=CA4FD0336C81A37A&sid=475189FCB44F11F6&eid=A020552C37306588&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=7