A statistical model for the small-scale multipath fading characteristics of ultra wideband indoor channel

A new kind of statistical distribution model is proposed to study the small-scale multipath fading characteristics of ultra wideband (UWB) indoor channel, taking into account its unique feature of high resolution in the delay domain. According to this model, a series of analytical expressions called as POCA-NAZU fading distributions are developed. Although POCA-NAZU fading is originally investigated for the propagation scenario with a finite number of indoor scatterers, it also reflects much well the actual physical mechanism of indoor UWB propagation. The comparisons of POCA-NAZU fading with conventional Rayleigh and Ricean fading are provided as well.