Performance assessment of satellite-terrestrial relays under correlated fading

Abstract

Relay assisted satellite communication holds the promise to increase the coverage area and enhance the energy efficiency of Land Mobile Satellite (LMS) systems. To this end, this paper focuses on the performance analysis of relay assisted LMS communication. The channel between relays and satellite is subjected to Shadow Rician fading. Moreover, correlated fading environment is assumed between relays and mobile nodes. The satellite adopts Optimal Relay Selection (ORS) strategy to select the best relay out of available set of relays. Furthermore, we evaluate the performance of LMS based on outage probability and provide closed form expression for the said metric. Simulations and analytical results are provided to show the impact of various network parameters on the performance of LMS systems.