Underwater visible light communications in cascaded gamma-gamma turbulence
Type :
Conference paper
Publication Status :
Published
Access :
restrictedAccess
Abstract
In this paper, we investigate the performance of vertical underwater visible light communication (VLC) links in the presence of moderate and strong turbulence conditions using Gamma-Gamma (GG) probability density function. In vertical links, refractive index changes with depth eventually affecting the variance of turbulence-induced fading. Considering such variations with respect to depth, we first develop a statistical turbulence channel model based on the cascaded structure of fading coefficients. Then, we use this expression to formulate a closed form expression for bit error rate performance. We confirm the analytical derivations through simulations.
Source :
2018 IEEE Globecom Workshops (GC Wkshps)
Date :
2018
Publisher :
IEEE
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