Analysis and simulation for temporal correlated composite fading channels

This paper deals with the analysis and simulation for composite fading channels, which includes multipath fading and shadowing. Assuming that multipath fading and shadowing are independent, a stochastic reference channel model under composite fading is proposed in terms of a product of Nakagami and lognormal random processes. The probability density function (PDF) and auto-correlation coefficient (ACC) for this theoretical model are also derived. On this basis, a novel simulation model is presented and the envelope statistics including PDF, ACC and cross-correlation coefficient (CCC) are studied for performance evaluation. Finallly, the new composite channel simulator is validated by applying on suburban and urban propagation scenarios. The simulation results show that the output statistical properties agree well with the theoretical ones. So the proposed simulation model can be used to study the composite effects on the performance of mobile communication systems under real-world fading conditions, where multipath fading and shadowing existed simultaneously.