Symbol Error Probability for M-Ary Signals in Stacy Fading Channels

Youngpil SONG  Hyundong SHIN  

IEICE TRANSACTIONS on Communications   Vol.E92-B   No.3   pp.973-979
Publication Date: 2009/03/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.973
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
diversity,  α-µ fading,  orthogonal space-time block code (OSTBC),  Stacy distribution,  symbol error probability (SEP),  

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In this paper, we derive the exact average symbol error probability (SEP) of M-ary phase-shift keying and quadrature amplitude modulation signals over Stacy fading channels. The Stacy fading is modelled by a three-parameter generalized gamma or physically α-µ fading distribution, spanning a wide range of small-scale fading such as Rayleigh, Nakagami-m, and Weibull fading. The average SEP is generally expressed in terms of (generalized) Fox's H-functions, which particularizes to the previously known results for some special cases. We further analyze the diversity order achieved by orthogonal space-time block codes in multiple-input multiple-output (MIMO) Stacy fading channels.