MMSE-DFE Based MIMO Relay System with Correlated Fading Channel

被引：3
作者：
Rong, Yue [1 ]
机构：
[1] Curtin Univ, Dept Elect & Comp Engn, Bentley, WA 6102, Australia
来源：
IEEE WIRELESS COMMUNICATIONS LETTERS | 2012年 / 1卷 / 03期
基金：
澳大利亚研究理事会;
关键词：
Channel correlation; DFE; MIMO relay; MMSE; DESIGN;
D O I：
10.1109/WCL.2012.022812.110286
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We consider a practical dual-hop nonregenerative multiple-input multiple-output (MIMO) relay system, where the relay node only knows the correlation matrix of the relay-destination channel. A nonlinear minimal mean-squared error (MMSE)-based decision feedback equalizer (DFE) is used at the destination node to retrieve the source signals. We derive the structure of statistically optimal source and relay precoding matrices to minimize a class of objective functions which are multiplicatively Schur-convex with respect to the diagonal elements of the MSE matrix. Simulation results demonstrate that the proposed algorithm has a very close performance compared to MIMO relay system with full channel knowledge at the relay node, and thus is very useful for practical relay systems.
引用
收藏
页码：157 / 160
页数：4
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