Performance of Spatially Distributed Large Interference Relay Networks

In this paper we consider a special type of wireless ad hoc network, called interference relay network, where a set of source-destination pairs concurrently communicate through a set of half-duplex relays. We study the performance of the large interference relay network, when the network nodes are spatially distributed. We introduce a new weighted relaying protocol generalizing the recently proposed protocols and an efficient method for allocating relays to the communicating pairs. We investigate the performance scaling in an interference relay network with low number of communicating pairs and study the effect of spatial separation and different network topologies. Our results show that spatial separation can improve the performance of interference relay networks and that the behavior largely depends on the network topology