%0 Journal Article
%T Interference Cancellation in MIMO Systems with Imperfect Channel State Information<br>非精确信道状态信息下MIMO系统中的干扰删除
%A Xu Fang-min Tao Xiao-feng Zhang Ping
%A <br>许方敏
%A 陶小峰
%A 张平
%J 电子与信息学报
%D 2008
%I 
%X Unknown interference and noise are ubiquitous in the complexity multi-antennas environment. They not only reduce precision of signal detection in Multi-Input Multi-Output (MIMO) systems seriously but also make it difficult to obtain perfect Channel State Information (CSI). In this paper, to cancel unknown interference in MIMO systems, a new approach for modeling these systems with imperfect CSI is introduced. The interference is treated as a nonlinear function in the model and estimated based on nonparametric theory. Unlike other interference cancellation methods, the interference treated here is unknown absolutely. Furthermore, the proposed interference cancellation is proved to be effective via theoretical analysis. That is, estimation of the interference is convergent. Simulation results demonstrate that the interference cancellation proposed here is valid for MIMO systems with imperfect CSI.
%K Multi-Input Multi-Output (MIMO)
%K Imperfect Channel State Information (Imperfect CSI)
%K Unknown interference
%K Nonparametric theory<br>多输入多输出(MIMO)
%K 非精确信道状态信息
%K 未知干扰
%K 非参数理论??
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=748329B054D7D1DDC2CDB5D20E8B2805&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=59906B3B2830C2C5&sid=0C87310A2B6D3577&eid=2CD0DCA22C808B7D&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=20