Joint Optimization for MIMO AF Multiple-Relay Systems With Correlated Channel Uncertainties

In the paper, the source/relays-pre-coders and destination-equalizer combined optimization is proposed in a dual-hop Multiple-Input Multiple-Output (MIMO) Amplify-and-Forward (AF) multiple-relay system with correlated channel uncertainties in both hops. By taking correlated channel uncertainties into account, a robust transceiver joint design is developed based on the Minimum Mean-Squared Error (MMSE) criterion under individual power constraints at the source and relays. Simulation results illustrate that the robust transceiver design architecture for an AF-MIMO system equipped with multiple relays outperforms substantially the non-robust transceiver design.

Provided by: National Chung Cheng University Topic: Mobility Date Added: Nov 2012 Format: PDF

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