Outage Performance Analysis for Multicasting with Opportunistic Relaying

In this paper, a multicast scenario is considered through selection decode-and-forward cooperative relay networks over Nakagami-m fading channel in which a source communicates with multiple destinations via multiple cooperative relays. A best relay is selected using selection combining technique which communicates with the destinations. The performance of the proposed model is analyzed based on the closed-form expression of the outage probability. Analytical results reveal that the additional diversity provided by the best relay significantly improves the outage performance of the proposed model mitigating the fading severity of wireless channel.