Probabilistic Model for Free-Space Optical Links Under Continental Fog Conditions

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dc.contributor.authorKhan, Muhammad Saeed
dc.contributor.authorAwan, Muhammad Saleem
dc.contributor.authorMuhammad, Sajid Sheikh
dc.contributor.authorFaisal, Muhammad
dc.contributor.authorMarzuki
dc.contributor.authorNadeem, Farukh
dc.contributor.authorLeitgeb, Erich
dc.coverage.issue3cs
dc.coverage.volume19cs
dc.date.accessioned2016-03-11T09:19:17Z
dc.date.available2016-03-11T09:19:17Z
dc.date.issued2010-09cs
dc.description.abstractThe error characteristics of a free-space optical (FSO) channel are significantly different from the fiber based optical links and thus require a deep physical understanding of the propagation channel. In particular different fog conditions greatly influence the optical transmissions and thus a channel model is required to estimate the detrimental fog effects. In this paper we shall present the probabilistic model for radiation fog from the measured data over a 80 m FSO link installed at Graz, Austria. The fog events are classified into thick fog, moderate fog, light fog and general fog based on the international code of visibility range. We applied some probability distribution functions (PDFs) such as Kumaraswamy, Johnson SB and Logistic distribution, to the actual measured optical attenuations. The performance of each distribution is evaluated by Q-Q and P-P plots. It is found that Kumaraswamy distribution is the best fit for general fog, while Logistic distribution is the optimum choice for thick fog. On the other hand, Johnson SB distribution best fits the moderate and light fog related measured attenuation data. The difference in these probabilistic models and the resultant variation in the received signal strength under different fog types needs to be considered in designing an efficient FSO system.en
dc.formattextcs
dc.format.extent460-465cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2010, vol. 19, č. 3, s. 460-465. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57019
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2010/10_03_460_465.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectFree Space Optics (FSO)en
dc.subjectoptical attenuationsen
dc.subjectMie scatteringen
dc.subjectProbability Density Function (PDF)en
dc.subjectvisibilityen
dc.subjectchannel modeling.en
dc.titleProbabilistic Model for Free-Space Optical Links Under Continental Fog Conditionsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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