期刊
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
卷 56, 期 1, 页码 27-34出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TVT.2006.883753
关键词
generalized Gamma distribution; Nakagami-m distribution; Stacy distribution; Weibull distribution; alpha-mu distribution
This paper introduces a fading model, which explores the nonlinearity of the propagation medium. It derives the corresponding fading distribution-the a-p distribution-which is in fact a rewritten form of the Stacy (generalized Gamma) distribution. This distribution includes several others such as Gamma (and its discrete versions Erlang and central Chi-squared), Nakagami-m (and its discrete version Chi), exponential, Weibull, one-sided Gaussian, and Rayleigh. Based on the fading model proposed here, higher order statistics are obtained in closed-form formulas. More specifically, level-crossing rate, average fade duration, and joint statistics (joint probability density function, general joint moments, and general correlation coefficient) of correlated alpha-mu variates are obtained, and they are directly related to the physical fading parameters.
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