Performance Analysis of Cooperative Communication System with a SISO system in Flat Fading Rayleigh channel

Abstract. In recent years cooperative communication has emerged as a promising technique to enhance system capacity, reliability and performances in resource-limited wireless environment. This paper presents performance analysis and comparison of a three node cooperative communication system with a single input single output (SISO) system in a flat fading Rayleigh channel with negative SNR. The simulations ' results show that the system performance can be improved by using cooperative communication techniques even when the inter-user channel is not good. The performance metric used for analysis is BER at a particular direct link SNR