Joint Transceiver and Relay Beamforming Design for Multi-Pair Two-Way Relay Systems

In this paper, the authors propose a simple yet effective beamforming technique for Multiple-Input Multiple-Output (MIMO) multi-pair two-way relay channels. Two key ingredients in their technique are adoption of Signal Space Alignment (SSA) for transmit and receive beamforming and Amplify-and-Forward (AF) relay beamforming based on advanced Zero-Forcing (ZF) criterion. From the sum-rate analysis on MIMO multi-pair two-way relay channels, they show that the proposed method achieves full multiplexing gain and substantial beamforming gain in realistic multi-pair two-way relay scenario.

Provided by: Korea University Topic: Mobility Date Added: May 2012 Format: PDF

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