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General Information
Prof. Adrian Olaru
University Politehnica of Bucharest, Romania
I'm happy to take on the position of editor in chief of IJMO. It's a journal that shows promise of becoming a recognized journal in the area of modelling and optimization. I'll work together with the editors to help it progress.
IJMO 2016 Vol.6(3): 171-176 ISSN: 2010-3697
DOI: 10.7763/IJMO.2016.V6.523

Robust Transceiver Design for MIMO System with Amplify-and-Forward Relay

Jun-Xu Su, Xiao-Min Chen, Qiu-Ming Zhu, Yi-Min Zhu, Zhu Fang
Abstract—In this paper, a robust transceiver design for dual-hop multiple-input multiple-output (MIMO) system with amplify-and-forward (AF) relay is produced in the presence of imperfect channel state information (CSI) . The antenna correlation at both ends of the channel and the channel estimation errors are taken into account. The optimization problem is formulated based on minimum mean-square error (MMSE) rule, and the original problem is decoupled into three convex sub-problems. Then the source precoding matrix is optimized by the interior-point method, the optimal relaying matrix is derived by lagrangian multiplier method. The equalizer is optimized by a gradient-based line search algorithm and an alternating algorithm is proposed for the joint design. Simulation results indicated that the proposed design approach achieves better robustness against antenna correlation and channel estimation errors than other approaches.

Index Terms—MIMO relay system, amplify-and-forward, mean-square error (MMSE), antenna correlation, channel estimation errors.

The authors are with the College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China (e-mail: chenxm402@nuaa.edu.cn).


Cite: Jun-Xu Su, Xiao-Min Chen, Qiu-Ming Zhu, Yi-Min Zhu, Zhu Fang, "Robust Transceiver Design for MIMO System with Amplify-and-Forward Relay," International Journal of Modeling and Optimization vol. 6, no. 3, pp. 171-176, 2016.

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