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AuthorTouati, Abir
AuthorAbdaoui, Abderrazak
AuthorTouati, Farid
AuthorUysal, Murat
AuthorBouallegue, Ammar
Available date2021-09-07T06:16:16Z
Publication Date2016
Publication NameJournal of Optical Communications and Networking
ResourceScopus
ISSN19430620
URIhttp://dx.doi.org/10.1364/JOCN.8.000715
URIhttp://hdl.handle.net/10576/22781
AbstractFree-space optical (FSO) communication is known for its various impairments such as atmospheric turbulence and misalignment fading. In this paper, we study the performance of an FSO link operating under combined path loss and atmospheric and misalignment fadings. We derive a closed-form expression for the bit error rate (BER) of the FSO link in such conditions when the on-off keying (OOK) modulation is employed and when the fluctuations of the received signal are modeled by Gamma-Gamma distribution. In addition, we evaluate the effects of the combined fadings on the outage probability of the FSO link for different strengths of turbulence and pointing errors. Furthermore, we investigate the advantages of combining radio frequency (RF) with FSO to form hybrid FSO/RF systems. The RF link is based on 16 quadrature amplitude modulation (16-QAM) and on Rician channel fading. We study the performance of the hybrid FSO/RF system in terms of outage probability and BER and find that the hybrid FSO/RF system can overcome the weaknesses of FSO links, which are sensitive to atmospheric variations and misalignment fading. Journal 2016 Optical Society of America.
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectBER
Gamma-Gamma fading
Hybrid FSO/RF
Outage probability
TitleOn the effects of combined atmospheric fading and misalignment on the hybrid FSO/RF transmission
TypeArticle
Pagination715-725
Issue Number10
Volume Number8
dc.accessType Abstract Only


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