On the Distribution of the Ratio of Products of Fisher-Snedecor $\mathcal{F}$ Random Variables and Its Applications

Abstract

The Fisher-Snedecor $\mathcal{F}$ distribution has been recently proposed as a more accurate and mathematically tractable composite fading model than traditional established models in some practical cases. In this paper, we firstly derive exact closed-form expressions for the main statistical characterizations of the ratio of products of $\mathcal{F}$-distributed random variables, including the probability density function, the cumulative distribution function and the moment generating function. Secondly, simple and tight approximations to the distribution of products and ratio of products of $\mathcal{F}$-distributed random variables are presented. These analytical results can be readily employed to evaluate the performance of several emerging system configurations, including full-duplex relaying systems operating in the presence of co-channel interference and wireless communication systems enhanced with physical-layer security. The proposed mathematical analysis is substantiated by numerically evaluated results, accompanied by equivalent ones obtained using Monte Carlo simulations.

arXiv comment11pages, 15 figures

References in corpus (6)

• On the Multivariate Gamma-Gamma ($\Gamma \Gamma$) Distribution with Arbitrary Correlation and Applications in Wireless Communications
• Ergodic Capacity Under Power Adaption Over Fisher-Snedecor F Fading Channels
• On High-Order Capacity Statistics of Spectrum Aggregation Systems over $\kappa$-$\mu$ and $\kappa$-$\mu$ shadowed Fading Channels
• The α-κ-μ Shadowed Fading Distribution: Statistical Characterization and Applications
• Approximation to Distribution of Product of Random Variables Using Orthogonal Polynomials for Lognormal Density
• On the Sum of Fisher-Snedecor F Variates and its Application to Maximal-Ratio Combining