On the Performance Analysis of Dual-Hop Mixed FSO/RF Systems

Emna Zedini, Hamza Soury, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

This paper presents novel results for the performance analysis of dual-hop free-space optical/radio frequency (FSO/RF) transmission systems where the FSO link is modeled by the Gamma-Gamma distribution with pointing error impairments and under both heterodyne detection and intensity modulation with direct detection (IM/DD), and the RF link experiences the Generalized Nakagami-m fading. Using amplify-and-forward fixed-gain relaying as well as channel-state-information(CSI)- assisted relaying, we derive closed-form expressions for the outage probability, the average bit-error rate (BER), and the ergodic capacity in terms of the bivariate H-Fox function. For a special case, we obtain simplified results for Nakagami-m fading channels in the RF link. Further, new asymptotic results for the outage probability and the average BER at high signal-to-noise ratio (SNR) regime are presented in terms of simple functions. Numerical and Monte-Carlo simulation results are provided to verify the accuracy of the newly proposed results, and a perfect agreement is observed.
Original languageEnglish (US)
Pages (from-to)3679-3689
Number of pages11
JournalIEEE Transactions on Wireless Communications
Volume15
Issue number5
DOIs
StatePublished - Feb 3 2016

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