Wireless multicasting in cooperative multiplexing system with zero-forcing filtering

Abstract

In this paper, we consider a multicasting scenario in cooperative spatial multiplexing system over Rayleigh fading channel in which a source S transmits a common stream of information to a group of client receivers via K relays. We assume that there is no direct path between S and the client receivers and communication occurs only through the relays. Considering a linear equalization, e.g. zero-forcing (ZF) in cooperative spatial multiplexing system, at first, we derive the exact closed-form expression for the ergodic multicast capacity. Then, we derive the closed-form expressions for the outage probability and the complementary cumulative distribution function (CCDF) of multicast capacity to analyze the outage performance of proposed model.