Performance Bounds for Two-Way Amplify-and-Forward Relaying Based on Relay Path Selection
In this paper, the authors consider two-way amplify-and-forward relaying communication over a multiple relays network in which the best relay node is selected among others. Their proposed scheme picks for duplex communication between the source and the destination only the relay which provides the best end-to-end performance based on the instantaneous channel information. Similar to the relay selection method proposed, their scheme also does not require any explicit communications among the relays. Based on the proposed relay selection criterion, they offer the performance bounds on the average sum-rate, average symbol error rate, outage probability over identically, and independent distributed Rayleigh fading channels.