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Joint Source and Relay Optimization for Multiuser MIMO Relay Communication Systems

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Authors
Khandaker, Muhammad
Rong, Yue
Date
2010
Type
Conference Paper
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Abstract

In this paper, we design the source precoding matrices and the relay amplifying matrix of an amplify-andforward multiuser multiple-input multiple-output (MIMO) relay communication system. The minimum mean-squared error (MSE) is taken as the design criterion. We propose an alternating technique to efficiently solve the nonconvex source and relay optimization problem. It is shown that both the optimal source and relay matrices have a beamforming structure. Simulation results demonstrate that the proposed source and relay design algorithms perform much better than the existing techniques in terms of both MSE and bit-error-rate.

Citation
Khandaker, Muhammad R.A. and Rong, Yue. 2010. Joint Source and Relay Optimization for Multiuser MIMO Relay Communication Systems, in Wysocki, T. (ed), 4th International Conference on Signal Processing and Communication Systems, Dec 13 2010. Gold Coast, QLD: IEEE.
Source Title
Proceedings of the 4th International Conference on Signal Processing and Communication Systems
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Department
Department of Electrical and Computer Engineering
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