Partially Coherent BPSK in Fading Channels and Intersymbol Interference

In this paper, we analyze the performance of partially coherent BPSK systems in the presence of intersymbol interference. Generalized flat fading channels including Rayleigh, Rician, and Nakagami-m are investigated, and Tikhonov-distributed phase error processes are assumed. We consider diversity system with L-branch signals that being detected using post detection equal-gain combining (EGC) receiver. The diversity branches are assumed to experience slow, flat, and uncorrelated fading. Two performance criteria are considered: the average bit-error probability (BEP) and the signal-to-noise ratio (SNR) gain penalty due to the sampling time jitter. Quazi-analytical simulation results are also presented.