Joint transceiver design for amplify-and-forward multiuser MIMO relay communication systems with source-destination links

被引：1
|
作者：
Jiang, Weipeng [1 ]
He, Zhiqiang [1 ]
Zhang, Xiaonan [1 ]
Bi, Yunqiang [1 ]
Rong, Yue [2 ]
机构：
[1] Beijing University of Posts and Telecommunications, Beijing
[2] Department of Electrical and Computer Engineering, Curtin University, Bentley, 6102, WA
来源：
Journal of Communications | 2015年 / 10卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Direct links; MIMO relay; MMSE; Multiuser;
D O I：
10.12720/jcm.10.7.457-465
中图分类号：
学科分类号：
摘要：
—In this paper, we generalize the iterative algorithms proposed by Khandaker to amplify-and-forward multiuser Multiple-Input Multiple-Output (MIMO) relay communication systems with the source-destination links. Compared with the conventional algorithms, where the source-destination links are ignored, the evolved Tri-Step method and Bi-Step method are derived for the new system model with the source-destination links for more spatial diversity gain. From the theoretical derivation of the Minimum Mean-Squared Error (MMSE) of the signal waveform estimation at the destination node, we show that the existence of the source-destination links bring benefits no matter how weak they are. Numerical examples demonstrate that the evolved algorithms perform much better than the original algorithms and other existing ones in terms of both MSE and Bit-Error-Rate (BER). © 2015 Journal of Communications.
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页码：457 / 465
页数：8
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