ABEP of EGC Receiver over Composite and Non-homogenous Fading Channels with Phase Error and Co-channel Interference

Abstract

Average bit error probability (ABEP) performance of a dual branch equal gain combining (EGC) receiver is analyzed in correlated composite fading channels and in independent and identically distributed (i.i.d.) non-homogenous fading channels in the presence of phase error and co-channel interference. Closed form expressions for moments of the combiner output signal to interference plus noise ratio are derived individually for correlated composite fading channels and i.i.d. non-homogenous fading channels. Using the obtained expressions, the ABEP for binary phase shift keying modulation is obtained, applying moment generating function and Padé approximation approach. Numerical and simulation results for different degrees of phase errors and different values of ρ are obtained. The results for special cases were checked with the available results.