Robust Beamforming for Amplify-and-Forward MIMO Relay Systems Based on Quadratic Matrix Programming

In this paper, robust transceiver design based on minimum-mean-square-error (MMSE) criterion for dual-hop amplify-and-forward MIMO relay systems is investigated. The channel estimation errors are modeled as Gaussian random variables, and then the effect are incorporated into the robust transceiver b...

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Bibliographic Details
Published in:arXiv.org 2010-05
Main Authors: Xing, Chengwen, Ma, Shaodan, Yik-Chung, Wu, Tung-Sang Ng
Format: Article
Language:English
Subjects:
Amplification
Bayesian analysis
Beamforming
Iterative algorithms
Iterative methods
MIMO (control systems)
Random variables
Relay systems
Robustness
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Summary:In this paper, robust transceiver design based on minimum-mean-square-error (MMSE) criterion for dual-hop amplify-and-forward MIMO relay systems is investigated. The channel estimation errors are modeled as Gaussian random variables, and then the effect are incorporated into the robust transceiver based on the Bayesian framework. An iterative algorithm is proposed to jointly design the precoder at the source, the forward matrix at the relay and the equalizer at the destination, and the joint design problem can be efficiently solved by quadratic matrix programming (QMP).
ISSN:2331-8422
DOI:10.48550/arxiv.1005.5574