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Proceedings Paper

Joint optimization of source beamformer and relay coefficients using MSE criterion
Author(s): Batu K. Chalise; Yimin D. Zhang; Moeness G. Amin
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Paper Abstract

The joint optimization of source beamformer and distributed relay coefficients is considered for a cooperative network that uses the output mean-square error (MSE) as the performance metric. Two methods are proposed for solving this nonconvex optimization problem. The first approach iteratively optimizes the source beamformer and relay coefficients, whereas the second method optimizes the relay coefficients keeping the source beamformer as the maximum-ratio-transmitter (MRT). Both approaches are reformulated as relaxed semidefinite programming problems. The optimality of MRT is proven analytically under some conditions. The superiority of the proposed methods is verified using numerical examples.

Paper Details

Date Published: 4 May 2012
PDF: 11 pages
Proc. SPIE 8404, Wireless Sensing, Localization, and Processing VII, 84040H (4 May 2012); doi: 10.1117/12.920479
Show Author Affiliations
Batu K. Chalise, Villanova Univ. (United States)
Yimin D. Zhang, Villanova Univ. (United States)
Moeness G. Amin, Villanova Univ. (United States)

Published in SPIE Proceedings Vol. 8404:
Wireless Sensing, Localization, and Processing VII
Sohail A. Dianat; Michael David Zoltowski, Editor(s)

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