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Monte Carlo方法模拟非直视紫外光散射覆盖范围Monte Carlo方法模拟非直视紫外光散射覆盖范围
Monte Carlo simulations for non-line-of-sight ultraviolet scattering coverage area
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摘要: 针对大气中紫外光散射通信的特点,用Monte Carlo方法对紫外光非直视（NLOS）通信三种工作方式的覆盖范围进行分析,建立了基于Monte Carlo方法的NLOS紫外光传输模型.利用Monte Carlo模拟方法对三种NLOS散射方式的单次和多次散射路径损耗及覆盖范围进行模拟研究,结果表明,多次散射和单次散射的路径损耗基本一致,NLOS（a）类全向发送全向接收通信方式覆盖范围最小但全方位性好,NLOS（b）类定向发送全向接收通信方式的覆盖范围较大但有一定方向性,NLOS（c）类定向发送定向接收通信方式的覆盖范围最大但有很强的方向性.Abstract: In this paper,the Monte Carlo method is employed to simulate the ultraviolet light scattering transmission.The three modes of ultraviolet（UV） no-line-of-sight（NLOS） communication are analyzed.The UV NLOS transmission model based on the Monte Carlo method is proposed.The path losses of single and multiple scatterings and the coverage area of three UV NLOS modes are simulated by using the Monte Carlo method.Finally.we obtain the conclusion that multiple scattering and single scattering basically have the same path loss.The coverage of NLOS（a） is smallest,but omni-direction is good.The coverage of NLOS（b） is larger,but it is directional. The coverage of NLOS（c） is largest,but it is strongly directional.
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