Analysis of Dual-Hop AF Relay Systems in Mixed RF and FSO Links

TL;DR

This paper evaluates the performance of dual-hop AF relay systems over mixed RF and FSO links, deriving analytical expressions for outage probability and error rates under fading conditions, supported by simulations.

Contribution

It provides new closed-form expressions for system performance metrics in mixed RF/FSO relay systems with specific fading models.

Findings

Outage probability and error rates are derived analytically.

Fading parameters significantly impact system performance.

Simulation results validate the analytical expressions.

Abstract

We analysis the performances for the dual-hop fixed gain amplify-and-forward (AF) relay systems operating over mixed radio-frequency (RF) and free-space optical (FSO) links. The RF link is subject to Rician fading and the FSO link experiences Gamma-Gamma turbulence fading. We derive the closed-form expressions for the outage probability and the average symbol error rate in terms of the Meijer's G function.All analytical results are corroborated by simulation results and the effects of fading parameters on the system performances are also studied.