Multi-Source Multi-Destination Relay Network: An Interference-Free Multi-Beamforming Protocol

In this paper we consider an interference-free beamforming protocol for multi-source multi-destination networks. The new protocol adopts the amplify and policy as its cooperative transmission strategy and adjusts weights of relays to realize an improved multi-pair destination data transfer. We in particular investigate the how to choose the weights of relays to optimize the data transfer performance, especially the diversity order of data transfer for each source-destination pair, subject to relaying power constraint. To investigate the highest diversity order for each pair of source-destination data we further add another constraint to zero-force the between them. We analyze the achieved diversity order of data transfer for each source-destination pair and confirm results by simulations. Analysis and Monte-Carlo demonstrate the superior data transfer performance as with other transmissions.