probabilistic model for free-space optical links under continental fog conditions

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ID: 139726
2010
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Ranked #7 of 100 articles by views in molecular therapy : the journal of the american society of gene therapy

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Abstract
The 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.
Reference Key
marzuki2010radioengineeringprobabilistic Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Marzuki;M. Faisal;S. Sheikh Muhammad;M. S. Awan;M. S. Khan;F. Nadeem;E. Leitgeb
Journal molecular therapy : the journal of the american society of gene therapy
Year 2010
DOI
DOI not found
URL
www.radioeng.cz/fulltexts/2010/10_03_460_465.pdf
Keywords
visibility electronics nuclear engineering

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