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Transceiver Optimization for MIMO Multi-Relay Systems Using Projected Gradient Approach

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2014
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Conference Paper

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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 amplifyingmatrices 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.

Citation
Toding, A. and Khandaker, M. and Rong, Y. 2014. Transceiver Optimization for MIMO Multi-Relay Systems Using Projected Gradient Approach, in S. Hanly (ed), The International Symposium on Information Theory and Its Applications, Oct 26-29 2014, pp. 635-639. Melbourne, Australia: IEEE.
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Proceedings of the International Symposium on Information Theory and Its Applications
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Department of Electrical and Computer Engineering
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