Asymptotic SEP for M-PSK Signals overα-μFading Channels

The alpha-mu fading is a general physical model recently rewritten from the Stacy (or generalized gamma) distribution, encompassing a variety of fading environments such as Rayleigh, Nakagami-m, and Weibull fading. We characterize the asymptotic average symbol error probability (SEP) at a high signal- to-noise ratio (SNR)-specifically, the high-SNR slope and power gain-in terms of two physical fading parameters alpha and mu. We further extend the asymptotic SEP analysis to a multiple-input multiple-output diversity system employing orthogonal space- time block codes in alpha-mu fading channels.