ABER performance of dual-hop system over asymmetric fading channels with interference at the relay

Abstract

This paper studies the performance of a dualhop amplify-and-forward (AF) system where the sourcerelay and relay-destination channels experience Rayleigh and Rician fading, respectively. The relay node is corrupted by Rayleigh faded multiple co-channel interferences. Based on proposed system model, new closed-form expression for the average bit error rate (ABER), in the case of several modulation formats, is derived. Numerical results are performed in order to verify analytical approach.Keywords -Amplify-and-forward relay, average bit error rate, co-channel interference, fading channel, outage probability.