The analysis of multiuser relaying mixed RF/FSO networks over exponentiated Weibull fading channel

Abstract

In this paper, the performance of multiuser relaying mixed radio frequency (RF)/free space optical (FSO) networks over exponentiated Weibull Fading Channel is studied. Based on the transmit opportunistic scheduling, a unified cumulative distribution function (CDF) of the end-to-end signal to noise ratio (SNR) for multiuser dual-hop relaying system is derived. Then the average symbol error rate (ASER), outage probability and ergodic channel capacity are analyzed in detail. Furthermore, in order to simplify the analysis of system performance, the asymptotic results for the outage probability and ASER are derived at high SNR regime. We also demonstrate Monte Carlo simulation to ensure the effectiveness of the results. The simulation results show that deploying the transmit opportunistic scheme can improve the proposed system performance. And aperture averaging and heterodyne detection technique can suppress the impact of turbulence on FSO networks.