Mathematical Analysis of Interference Issues and Study on Pathloss, Fading and Shadowing Effects on Cognitive Radio Networks

Abstract

Handling interference in wireless Communication system is a challenging task. This paper aims about mathematical analysis of interference in general and also in cognitive radio networks. This paper concentrates on various sources of interferences such as pathloss, fading and  shadowing. Interference system model was created by considering spatial distribution of nodes, wave propagation characteristics and mobility of the interferences from active set of nodes and aggregate interference was analyzed under different cirucumstances.  Simulation results showed that the outage probability of secondary user to sense the transmission between primary  transmitter and receiver with respect to pathloss, fading  and shadowing.