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Modeling of UV diffused-LOS communication channel incorporating obstacle and its applicability analysis

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Abstract

Existing studies of the ultraviolet (UV) channel mainly focus on non-line-of-sight (NLOS) scenarios, while line-of-sight (LOS) scenarios are generally neglected since obstacles sometimes block them. To fill this gap, a UV diffused-LOS channel model in the presence of an obstacle is proposed for the first time, to the best of our knowledge. For easy interpretation, the whole derivation is combined with four typical positions of the obstacle. Moreover, the applicability of the proposed model is investigated via comparison with the classical Monte Carlo simulation model, where the transceiver elevation angle and azimuth angle are always kept optimal. Calculation and simulation results show that when the obstacle thickness is relatively small, the channel attenuation of the UV diffused-LOS system is lower than that of the UV NLOS system with the variation of obstacle width, height, and distance between transceiver and obstacle. In addition, an expression of the impulse response time of the diffused-LOS channel with the obstacle is also derived for tractable analysis.

© 2021 Optical Society of America

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Supplementary Material (1)

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Supplement 1       Modeling of UV diffused-LOS communication channel incorporating obstacle and its applicability analysis: supplemental document

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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