Visible light propagation characteristics under turbulent atmosphere and its impact on communication performance of traffic system

Li-da Guo; Ming-jian Cheng; Li-xin Guo

doi:10.1117/12.2534424

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17 May 2019 Visible light propagation characteristics under turbulent atmosphere and its impact on communication performance of traffic system

Li-da Guo, Ming-jian Cheng, Li-xin Guo

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Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 1117047 (2019) https://doi.org/10.1117/12.2534424
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

In this paper, mathematical modeling and statistical methods are used. establishing a simple bit error rate evaluation model of intelligent transportation optical communication system under ideal atmospheric conditions. The lognormal turbulence distribution model is introduced into the geometric model of visible optical communication system to further calculate the parameters of the whole communication system. The effects of signal-to-noise ratio, aperture size, visibility, wavelength and other factors on the bit error rate and channel capacity of visible optical communication are calculated and analyzed. After calculation, the bit error rate increases with the increase of signal-to-noise ratio (SNR), decreases with the increase of visible wavelength and increase with distance. besides, the stronger the turbulence is, the more violent the fluctuation of BER is. The simulation results based on this model are basically consistent with the actual situation. It can simulate the visible light communication of intelligent transportation system better and provide reference for the selection of communication parameters in different environments.

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Li-da Guo, Ming-jian Cheng, and Li-xin Guo "Visible light propagation characteristics under turbulent atmosphere and its impact on communication performance of traffic system", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 1117047 (17 May 2019); https://doi.org/10.1117/12.2534424

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