首页|Path loss of non-line-of-sight ultraviolet light commu-nication channel in polydisperse aerosol systems
Path loss of non-line-of-sight ultraviolet light commu-nication channel in polydisperse aerosol systems
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Performance of non-line-of-sight(NLOS)ultraviolet(UV)communication is closely related with the system geometry,the communication range,and the atmospheric parameters.In this paper,we implement a full numerical analysis of the relations of path loss of NLOS UV communication with these factors using the Mie scattering theory and the Mon-te-Carlo method.In the numerical simulations,the actual polydisperse aerosol systems are used as the transmission medium.Since for the actual aerosol systems the atmosphere conditions may be similar within a short period,the path loss may be exclusively determined by the atmosphere visibility.Hence,we build a relation between the path loss of the communication channel and the atmosphere visibility.Simulation results reveal that for a relatively small commu-nication range,the path loss increases with the visibility.On the other hand,low elevation of the transceiver may re-duce the path loss.Our simulation results are useful for the evaluation of performance of the real NLOS UV commu-nication systems.
MA Yuzhao、JIA Huiting、GAO Huiliang、XIONG Xinglong
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Tianjin Key Laboratory for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,China
College of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China