Robust beamforming for amplify-and-forward mimo relay systems based on quadratic matrix programming

Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing, 2010, p. 3250-3253In 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). ©2010 IEEE.published_or_final_versionThe IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Dallas, TX., 14-19 March 2010. In Proceedings of ICASSP, 2010, p. 3250-325