Formulation of spatial correlation statistics in Nakagami-Rice fading environments

Propagation environments in line-of-sight (LOS) communications, such as mobile-satellite communications and indoor radio communications, can be expressed by a Nakagami-Rice (or Rician) fading model. Since the Nakagami-Rice fading model also covers the Rayleigh fading model as an extreme case, it seems a very widely applicable model. This paper gives a theoretical formulation of spatial correlation characteristics in the Nakagami-Rice fading environment. Based on this theoretical model, spatial correlation characteristics of Nakagami-Rice fading are clarified comparing with those of Rayleigh fading. Moreover, the difference in spatial correlation characteristics between wide-band signals and narrow-band signals is discussed.