Performance analysis of dual-hop AF relaying networks over log-normal fading channels with interferences

This paper investigates the performance of a two-hop amplify-and-forward (AF) relaying networks over log-normal fading channel, while considering multiple interferer signals at the relay node and the destination node. Two well-known protocols, time switching-based relaying (TSR) and power splitting-based relaying (PSR) protocols, are considered. The analytical expressions of outage probability and throughput for the proposed network are derived. Numerical results verify our theoretical analysis and show that the transmission rate has a greater impact on system performance compared to other system parameters. Compared to the time switching factor for the TSR protocol, the power splitting factor for the PSR protocol has an insensitive effect on the system throughput. Furthermore, numerical results also exhibit the effect of the transmit signal-to-noise (SNR) on the system performance both for two proposed protocols.