Analysis of Relay-Assisted Device-to-Device Communication over Fisher-Snedecor F Fading Channels

Outage and Success performances of an amplify -and -forward (AF) relay -assisted Device -to -Device (D2D) communication system over Fisher-Snedecor F composite fading channels in the presence of co -channel interference (CCI) are discussed in this work. The CCIs are assumed to degrade the quality of D2D data at relay as well as destination. Selection combining (SC) scheme is also incorporated at the D2D receiver to mitigate fading conditions. Analytical expressions for success and outage probabilities are derived with the help of characteristic function. These expressions depend on the path -loss exponents, distance between relay and the D2D source, distance between the D2D receiver and the relay, distances between CCI sources and the relay node, distances between the D2D receiver and CCI sources, and channel fading conditions. The numerical results for various scenarios are presented and discussed.