Chong Lai Joshua Lam

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—This paper proposes the Log Shifted Gamma (LSG) approximation to model the sum of M lognormal distributed random variables. The closed-form probability density function (PDF) of the resulting LSG random variable (RV) is presented and its parameters are derived from those of the M individual lognormal RVs by using an iterative moment matching technique.(More)
This paper presents an accurate computation of outage probability in cellular radio system by using log shifted gamma (LSG) approximation to model the sum of correlated lognormal random variables (RVs) for a wide range of dB spreads, number of interferers M, correlation coefficients r among interference components, and noise power N. The proposed LSG(More)
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