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Performance of free-space optical communication systems: effect of aerosol-induced lower atmospheric warming

Sunilkumar, K and Anand, N and Satheesh, S K and Moorthy, K Krishna and Ilavazhagan, G. (2019) Performance of free-space optical communication systems: effect of aerosol-induced lower atmospheric warming. In: OPTICS EXPRESS, 27 (8). pp. 11303-11311.

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Official URL: https://doi.org/10.1364/OE.27.011303

Abstract

We report the effect of aerosol-induced local atmospheric heating and the resulting changes in the lower atmospheric optical turbulence on the performance of Free-Space Optical (FSO) communication links. A closed form mathematical expression is derived to estimate the influence of aerosol-induced warming on the Bit Error Rate (BER) of a Binary Phase Shift Keying FSO communication link through Gamma-Gamma modeled turbulence. Our results demonstrate a strong impact, with the aerosol-induced turbulence taking a toll on the signal-to-noise ratio of similar to 20 dB for a BER of 10(-9). Aerosol-induced warming produces significant variations in BER compared to the clear atmospheric conditions and can subdue the benefits of improved beam alignment.

Item Type: Journal Article
Additional Information: copyright for this article belongs to OPTICAL SOC AMER
Department/Centre: Division of Mechanical Sciences > Divecha Centre for Climate Change
Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Depositing User: Ms Ranganayaki RS
Date Deposited: 16 May 2019 12:09
Last Modified: 16 May 2019 12:09
URI: http://eprints.iisc.ac.in/id/eprint/62665

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