BER Analysis in Relay-Based DF Cooperative Diversity Systems Over Rayleigh Fading Channels with Non-Identical Interferers Near the Destination

Abstract

A considerable amount of attention has been drawn by Adaptive relaying schemes of cooperative diversity networks. This attention has been garnered because of the efficient way in which allocation of channel resources is implemented in these networks. In cooperative networks, the incremental relaying gets use of feedback channels from a certain destination. The major reasoning of doing this is basically for utilizing the relay at the case where when the immediate way (direct path) from source to goal is in blackout (outage). As a result, two received signals, of course at the destination side, will be certainly combined utilizing the Maximum Ratio Combiner (MRC) which typically prompts to enhancing the reception of the signal. In this article, a closed formula which concerns about the Bit Error Rate (BER) is derived considering incremental relaying uses Decode-and-Forward and Rayleigh fading channels. It likewise contemplates the impacts of various L non-indistinguishable interferers close to the destination. These impacts corrupt the performance of the system because of the existence of the Cochannel obstruction or interference. Analytical results are exhibited to integrate the assumptions.