Abstract: Free space optical (FSO) communication system has proven to be a solution to the overcrowded radio frequency due to its cost-effectiveness, license free and wide-bandwidth access technique for high data rates, which has attracted significant attention recently for a variety of applications. However, FSO communication channel severely suffers from turbulence-induced tropospheric scintillation fading caused by the dynamic nature of the atmospheric conditions thereby impairing its performance and reliability: this induced channel fading effect must be accounted for in the link transmission equation. In this paper, we have proposed an improved transmission link equation by taking into account the scale of turbulence eddies, the effect of aperture averaging, and magnitude of the refractive-index structure parameter that play very important role in FSO links calculations. This transmission model provides the basis for optical and photonics system communication engineers a platform to work with, in the link budgetary for planning and design of low margin systems of FSO communication link.
Keywords: Transmission Equation, Atmospheric Turbulence, Scintillation fading effects, FSO Communication.
Title: Improved Transmission Equation for Terrestrial FSO Link
Author: Oluwole J. Famoriji, Kazeem B. Adedeji Oludare Y. Ogundepo
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
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