Outage Performance of Uplink Cognitive Relay Cellular Networks with Opportunistic Scheduling

The exact and asymptotic closed-from expressions for the outage probabilities(OPs) of uplink dual-hop cognitive amplify-and-forward(AF) relay cellular networks with opportunistic secondary user(SU) scheduling are investigated.Multiple SUs are involved in this networks.By opportunistically scheduling the best SU to transmit,the performance of uplink cognitive AF relay cellular networks is improved.Simulation results are presented to validate the theoretical analysis.