Atmospheric Turbulence and Fog Attenuation Effects in Controlled Environment FSO Communication Links

Abdullah Nafis Khan; Saad Saeed; Yasir Naeem; Muhammad Zubair; Yehia Massoud; Usman Younis

doi:10.1109/LPT.2022.3217072

Atmospheric Turbulence and Fog Attenuation Effects in Controlled Environment FSO Communication Links

Abdullah Nafis Khan
, Saad Saeed
, Yasir Naeem
, Muhammad Zubair^*
, Yehia Massoud^*
, Usman Younis^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Free-space optical (FSO) communication can be seen as a promising technology for point-to-point and back-hauling links in the next generation wireless networks (5G and beyond) where cell size may shrink to a few hundred meters. In this work, we have experimentally investigated the laser beam propagation for FSO link under atmospheric turbulence and fog conditions. A controlled atmospheric environment chamber is designed to perform experiments under varying channel conditions. For fog attenuation, we have proposed an empirical model as a function of visibility against the measured average values, for visibility range of 0≤q V ≤q1000 m. For atmospheric turbulence, we report the measured values of the refractive index structure parameter Cn2>}. The measured Cn2> is used to calculate the atmospheric coherence width along the propagation distance. This work would help in the design optimization of practical FSO links under adverse conditions like fog and atmospheric turbulence.

Original language	English
Pages (from-to)	1341-1344
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	34
Issue number	24
DOIs	https://doi.org/10.1109/LPT.2022.3217072
State	Published - 15 Dec 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 1989-2012 IEEE.

Keywords

Optical attenuation
atmospheric turbulence
free space optics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2022.3217072

Cite this

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title = "Atmospheric Turbulence and Fog Attenuation Effects in Controlled Environment FSO Communication Links",

abstract = "Free-space optical (FSO) communication can be seen as a promising technology for point-to-point and back-hauling links in the next generation wireless networks (5G and beyond) where cell size may shrink to a few hundred meters. In this work, we have experimentally investigated the laser beam propagation for FSO link under atmospheric turbulence and fog conditions. A controlled atmospheric environment chamber is designed to perform experiments under varying channel conditions. For fog attenuation, we have proposed an empirical model as a function of visibility against the measured average values, for visibility range of 0≤q V ≤q1000 m. For atmospheric turbulence, we report the measured values of the refractive index structure parameter Cn2>\}. The measured Cn2> is used to calculate the atmospheric coherence width along the propagation distance. This work would help in the design optimization of practical FSO links under adverse conditions like fog and atmospheric turbulence.",

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author = "Khan, \{Abdullah Nafis\} and Saad Saeed and Yasir Naeem and Muhammad Zubair and Yehia Massoud and Usman Younis",

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language = "English",

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AU - Khan, Abdullah Nafis

AU - Saeed, Saad

AU - Naeem, Yasir

AU - Zubair, Muhammad

AU - Massoud, Yehia

AU - Younis, Usman

PY - 2022/12/15

Y1 - 2022/12/15

N2 - Free-space optical (FSO) communication can be seen as a promising technology for point-to-point and back-hauling links in the next generation wireless networks (5G and beyond) where cell size may shrink to a few hundred meters. In this work, we have experimentally investigated the laser beam propagation for FSO link under atmospheric turbulence and fog conditions. A controlled atmospheric environment chamber is designed to perform experiments under varying channel conditions. For fog attenuation, we have proposed an empirical model as a function of visibility against the measured average values, for visibility range of 0≤q V ≤q1000 m. For atmospheric turbulence, we report the measured values of the refractive index structure parameter Cn2>}. The measured Cn2> is used to calculate the atmospheric coherence width along the propagation distance. This work would help in the design optimization of practical FSO links under adverse conditions like fog and atmospheric turbulence.

AB - Free-space optical (FSO) communication can be seen as a promising technology for point-to-point and back-hauling links in the next generation wireless networks (5G and beyond) where cell size may shrink to a few hundred meters. In this work, we have experimentally investigated the laser beam propagation for FSO link under atmospheric turbulence and fog conditions. A controlled atmospheric environment chamber is designed to perform experiments under varying channel conditions. For fog attenuation, we have proposed an empirical model as a function of visibility against the measured average values, for visibility range of 0≤q V ≤q1000 m. For atmospheric turbulence, we report the measured values of the refractive index structure parameter Cn2>}. The measured Cn2> is used to calculate the atmospheric coherence width along the propagation distance. This work would help in the design optimization of practical FSO links under adverse conditions like fog and atmospheric turbulence.

KW - Optical attenuation

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KW - free space optics

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Atmospheric Turbulence and Fog Attenuation Effects in Controlled Environment FSO Communication Links

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this