Open AccessSingle and double scattering event analysis for ultraviolet communication channels
Author(s) -
Deva K. Borah,
Vinay R. Mareddy,
David G. Voelz
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.413219
Subject(s) - non line of sight propagation , monte carlo method , computer science , path loss , impulse response , scattering , impulse (physics) , channel (broadcasting) , importance sampling , optics , planar , algorithm , physics , wireless , telecommunications , mathematics , statistics , mathematical analysis , computer graphics (images) , quantum mechanics
This paper presents a channel analysis method for single and double scattering events in non-line-of-sight (NLOS) ultraviolet (UV) communication systems. In general, the calculations of path loss and impulse response of such systems require Monte Carlo random number generations. However, the high computational costs of Monte Carlo methods impose severe limitations on quick reliable evaluations of system performance under complex atmospheric conditions. This paper proposes a sample-based UV channel characterization approach that improves computational performance by multiple orders of magnitude. The proposed novel approach uses fixed probability-based sampling. The method focuses only on single and double scattering events which dominate the received signal. The effects of various fog and dust aerosols are discussed under non-planar realistic conditions. The results demonstrate reliable channel characterization with significantly lower complexity using the proposed approach.