... variance of MAI in flat Rayleigh fading environment 0.5 −4 Experimental Kurtosis of MAI Experimental Variance of MAI Analytical Variance of MAI K =4 6.2 K = 20 −3 −2 −1 Experimental Analytical ... behavior of Ui Consequently, in the ensuing analysis, the random variable Ui is approximated as a Gaussian random variable having zero mean and variance σ u 3.2 Probability density function of MAI ... Practical Nonparametric Statistics, Wiley, New York, NY, USA, 1980 M A Chaudhry and S M Zubair, On A Class of Incomplete Gamma Functions with Applications, Chapman & Hall/CRC, Boca Raton, Fla,...