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dc.contributor.authorZedini, Emna
dc.contributor.authorAnsari, Imran Shafique
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2015-08-04T07:27:58Z
dc.date.available2015-08-04T07:27:58Z
dc.date.issued2014-12
dc.identifier.citationZedini, E., Ansari, I. S., & Alouini, M.-S. (2014). On the performance of hybrid line of sight RF and RF-FSO fixed gain dual-hop transmission systems. 2014 IEEE Global Communications Conference. doi:10.1109/glocom.2014.7037121
dc.identifier.isbn9781479935116
dc.identifier.doi10.1109/GLOCOM.2014.7037121
dc.identifier.urihttp://hdl.handle.net/10754/565006
dc.description.abstractIn this work, we carry out a unified performance analysis of a dual-branch transmission system composed of a direct radio-frequency (RF) link and a dual-hop fixed gain relay over the asymmetric links composed of both RF and unified free-space optics (FSO) under the effect of pointing errors. RF links are modeled by the Nakagami-m fading channel and the FSO link by the Gamma-Gamma fading channel subject to both types of detection techniques (i.e. heterodyne detection and intensity modulation with direct detection (IM/DD)). Selection combining (SC) and maximum ratio combining (MRC) diversity schemes are investigated. More specifically, for the SC method, we derive new unified closed-form expressions for the cumulative distribution function (CDF), the probability density function (PDF), the moment generating function (MGF), the moments, the outage probability (OP), the average bit-error rate (BER) of a variety of binary modulations, and the ergodic capacity for end-to-end signal-to-noise ratio (SNR). Additionally, using the MGF-based approach, the evaluation of the OP, the average BER, and the ergodic capacity for the MRC diversity technique can be performed based entirely on the knowledge of the MGF of the output SNR without ever having to compute its statistics (i.e. PDF and CDF). By implementing SC or MRC diversity techniques, we demonstrate a better performance of our system relative to the traditional RF path only. Also, our analysis illustrates MRC as the optimum combing method. All the analytical results are verified via computer-based Monte-Carlo simulations.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectAsymmetric dual-hop relay system
dc.subjectatmospheric turbulence
dc.subjectfree-space optics (FSO)
dc.subjectmaximum ratio combining (MRC)
dc.subjectpointing errors
dc.subjectselection combining (SC)
dc.titleOn the performance of hybrid line of sight RF and RF-FSO fixed gain dual-hop transmission systems
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journal2014 IEEE Global Communications Conference
dc.conference.date8 December 2014 through 12 December 2014
dc.conference.name2014 IEEE Global Communications Conference, GLOBECOM 2014
kaust.personAnsari, Imran Shafique
kaust.personAlouini, Mohamed-Slim
kaust.personZedini, Emna


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