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Optical Engineering

Statistical modeling of optical attenuation measurements in continental fog conditions
Author(s): Muhammad Saeed Khan; Muhammad Amin; Muhammad Saleem Awan; Abid Ali Minhas; Jawad Saleem; Rahim Dad Khan
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Paper Abstract

Free-space optics is an innovative technology that uses atmosphere as a propagation medium to provide higher data rates. These links are heavily affected by atmospheric channel mainly because of fog and clouds that act to scatter and even block the modulated beam of light from reaching the receiver end, hence imposing severe attenuation. A comprehensive statistical study of the fog effects and deep physical understanding of the fog phenomena are very important for suggesting improvements (reliability and efficiency) in such communication systems. In this regard, 6-months real-time measured fog attenuation data are considered and statistically investigated. A detailed statistical analysis related to each fog event for that period is presented; the best probability density functions are selected on the basis of Akaike information criterion, while the estimates of unknown parameters are computed by maximum likelihood estimation technique. The results show that most fog attenuation events follow normal mixture distribution and some follow the Weibull distribution.

Paper Details

Date Published: 24 March 2017
PDF: 13 pages
Opt. Eng. 56(3) 036113 doi: 10.1117/1.OE.56.3.036113
Published in: Optical Engineering Volume 56, Issue 3
Show Author Affiliations
Muhammad Saeed Khan, University College of Engineering, Sciences and Technology (Pakistan)
Muhammad Amin, Nuclear Institute for Food and Agriculture (Pakistan)
Muhammad Saleem Awan, Pakistan Institute of Laser and Optics (Pakistan)
Abid Ali Minhas, Al Yamamah Univ. (Saudi Arabia)
Jawad Saleem, COMSATS Institute of Information Technology (Pakistan)
Rahim Dad Khan, COMSATS Institute of Information Technology (Pakistan)

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