Joint Impact of Pathloss Shadowing and Fast Fading - An Outage Formula for Wireless Networks

摘要

In this paper, we analyse the joint impact of pathloss, shadowing and fastfading on wireless networks. Taking into account the pathloss and theshadowing, we first express the SINR distribution of a mobile located at agiven distance from its serving base-station (BS). The moments of thisdistribution are easily computed, using the Fenton-Wilkinson method, and afluid model that considers the cellular network as a continuum of BS. Thenconsidering the joint impact of pathloss, shadowing and fast fading, we derivean easily computable outage probability formula, for a mobile located at anydistance from its serving BS. We validate our approach by comparing all resultsto Monte Carlo simulations performed in a traditional hexagonal network.Indeed, we establish that the results given by the formula are close to theones given by Monte Carlo simulations. The proposed framework is a powerfultool to study performances of cellular networks e.g. OFDMA systems (WiMAX,LTE).