Efficient and accurate simulator for Rayleigh and Rician fading

With an improved Rayleigh fading model and a zero-mean stochastic sinusoid as the scattering and specular components respectively, a stochastic simulation model is proposed for the generation of Rayleigh and Rician fading waveforms. Compared with the existing stochastic models, the proposed simulator needs only one trial to obtain the desired statistical properties even if the number of samples is not large enough. Moreover, the proposed simulation model can directly generate multiple uncorrelated waveforms for different fading scenarios, such as single-input single-output frequency selective channels and multiple-input multiple-output channels. The performance evaluation and comparison show that the proposed simulator is efficient and accurate.