Joint source and relay design for MIMO multi-relay systems using projected gradient approach

被引：0

作者：

Apriana Toding

Muhammad RA Khandaker

Yue Rong

机构：

[1] Universitas Kristen Indonesia Paulus,Department of Electrical Engineering

[2] University College London,Department of Electronic and Electrical Engineering

[3] Curtin University of Technology,Department of Electrical and Computer Engineering

来源：

EURASIP Journal on Wireless Communications and Networking | / 2014卷 / 1期

关键词：

MIMO relay; Parallel relay network; Beamforming; Non-regenerative relay; Projected gradient;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this paper, we develop the optimal source precoding matrix and relay amplifying matrices for non-regenerative multiple-input multiple-output (MIMO) relay communication systems with parallel relay nodes using the projected gradient (PG) approach. We show that the optimal relay amplifying matrices have a beamforming structure. Exploiting the structure of relay matrices, an iterative joint source and relay matrices optimization algorithm is developed to minimize the mean-squared error (MSE) of the signal waveform estimation at the destination using the PG approach. The performance of the proposed algorithm is demonstrated through numerical simulations.

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