Joint source and relay design for MIMO multi-relay systems using projected gradient approach
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Open access
Authors
Toding, A.
Khandaker, M.
Rong, Yue
Date
2014Type
Journal Article
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Toding, A. and Khandaker, M. and Rong, Y. 2014. Joint source and relay design for MIMO multi-relay systems using projected gradient approach. Eurasip Journal on Wireless Communications and Networking. 2014: Articel ID 151.
Source Title
Eurasip Journal on Wireless Communications and Networking
ISSN
School
Department of Electrical and Computer Engineering
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Collection
Abstract
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.
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/
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