Coverage Analysis of User-Centric Wireless Network in a Comprehensive Fading Environment

This letter analyzes the downlink coverage probability of user-centric wireless network in a comprehensive fading environment. The comprehensive fading environment consists of two types of fading models: 1) a long-term shadowed fading, where all signals experience an identical and independent lognormal shadowing and 2) an instantaneous fading, where the desired signal experiences kappa-mu shadowed fading with integer fading parameters and the interfering signals experience arbitrary fading. Based on the Gaussian-Hermit quadrature, a tractable and accurate expression for the serving distance with lognormal shadowing is obtained. Under a general cell association rule, a simple and generic expression for the downlink coverage probability of user-centric wireless network in the comprehensive fading scenario is successfully derived and verified through simulation. The derived expression reveals that there is no need for the coverage analysis with respect to the instantaneous interfering fading channels in terms of the independence assumption between network model and fading channels.