DefinePK

Abstract

We consider the problem of zero-forcing processing is studied for multi-input multi-output multi-relay communication system in which MIMO source-destination pairs communicate simultaneously. It is assumed that due to severe shadowing effects which communication links can be established only with the aid of relay node. The aim is to design the relay amplification matrix to maximize the achievable communication sum-rate through the relay, which in general amplifying-and-forward relaying mechanisms are considered. Zero-forcing (ZF) processing is employed at destination to maintain low-complexity. The performance analysis of the proposed algorithm is demon- strated through numerical simulations can be significantly improved.