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dc.contributor.authorZedini, Emna
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2017-01-02T09:55:30Z
dc.date.available2017-01-02T09:55:30Z
dc.date.issued2015-09-14
dc.identifier.citationZedini E, Alouini M-S (2015) Multihop communications over CSI-assisted relay IM/DD FSO systems with pointing errors. 2015 IEEE International Conference on Communication Workshop (ICCW). Available: http://dx.doi.org/10.1109/ICCW.2015.7247296.
dc.identifier.doi10.1109/ICCW.2015.7247296
dc.identifier.urihttp://hdl.handle.net/10754/622568
dc.description.abstractIn this paper, the end-to-end performance of a multihop free-space optical system with amplify-and-forward channel-state-information-assisted relays using intensity modulation with direct detection technique over Gamma-Gamma turbulence fading with pointing error impairments is studied. More specifically, novel closed-form expressions for the moment generating function, the cumulative distribution function, and the probability density function of the end-to-end signal-to-noise ratio (SNR) are derived in terms of the Meijer's G function. Based on these formulas, closed-form bounds for the outage probability, the average bit-error rate (BER) of a variety of modulation schemes, the moments, and the ergodic capacity are presented. Furthermore, by using the asymptotic expansion of the Meijer's G function at high SNR, accurate asymptotic results are introduced for the outage probability, the average BER and the ergodic capacity in terms of simple elementary functions. For the capacity, novel asymptotic results at low and high SNR regimes are also derived through the moments. All the analytical results are verified via computer-based Monte-carlo simulations.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectatmospheric turbulence
dc.subjectaverage bit error rate (BER)
dc.subjectergodic capacity
dc.subjectFree-space optics (FSO)
dc.subjectmultihop relaying
dc.subjectoutage probability
dc.subjectpointing errors
dc.titleMultihop communications over CSI-assisted relay IM/DD FSO systems with pointing errors
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journal2015 IEEE International Conference on Communication Workshop (ICCW)
dc.conference.date2015-06-08 to 2015-06-12
dc.conference.nameIEEE International Conference on Communication Workshop, ICCW 2015
dc.conference.locationLondon, GBR
kaust.personZedini, Emna
kaust.personAlouini, Mohamed-Slim
dc.date.published-online2015-09-14
dc.date.published-print2015-06


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