Coded BER performance in a correlative fading channel

The authors consider the coded bit error rate (BER) performance in a correlative fading channel. They present a method for BER calculation in a correlative Rayleigh fading channel. The method is then generalized to consider the log-normal fading and Rician fading. Both coherent PSK and differential PSK are considered. The method provides exact pairwise error probabilities instead of upper bounds. Numerical results are provided to confirm the computational feasibility and efficiency of the method. These results show that interleaving size can be a limiting factor for a correlative fading channel with a delay constraint. Coded BER performance is very sensitive to the interleaving size in the presence of correlative fading