Optimal Joint Source and Relay Beamforming for MIMO Relays with Direct Link

被引：65

作者：

Rong, Yue ^{[1
]}

机构：

[1] Curtin Univ Technol, Dept Elect & Comp Engn, Bentley, WA 6102, Australia

来源：

IEEE COMMUNICATIONS LETTERS | 2010年 / 14卷 / 05期

关键词：

Beamforming; direct link; MIMO relay; linear non-regenerative relay; TRANSCEIVER DESIGN; SYSTEMS;

D O I：

10.1109/LCOMM.2010.05.092429

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, we investigate the optimal structure of the source precoding matrix and the relay amplifying matrix for non-regenerative multiple-input multiple-output (MIMO) relay communication systems with the direct source-destination link. We show that both the optimal source precoding matrix and the optimal relay amplifying matrix have a beamforming structure. Based on this structure, an iterative joint source and relay beamforming algorithm is developed to minimize the mean-squared error (MSE) of the signal waveform estimation. Numerical example demonstrates an improved performance of the proposed algorithm.

引用

页码：390 / 392

页数：3

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