This paper studies a statistical channel model for dynamic vehicular visible light communication systems. The proposed model considers the effect of variation in inter-vehicular spacing and the geometrical changes on path loss of the channel. The study also considers different weather conditions and vehicle mobility based on a realistic traffic flow model that considers traffic density during different times of the day. Monte Carlo simulation is used to examine the obtained statistical model for different transmission scenarios. In addition, the Kolmogorov-Smirnov test for the statistical model and Monte Carlo simulation has been performed to verify that they represent the same distribution. The results show that the channel statistical distribution varies with the traffic flow and inter-vehicular spacing, which changes at different times of the day. The results also show that the path loss values of the non-line-of-sight component are significantly larger than the path loss values of the line-of-sight component of the channel when a single reflector is considered. However, at rush hours, when inter-vehicle spacing becomes shorter, the path loss value of multiple reflections decreases significantly.

本文研究了动态车辆可见光通信系统的统计通道模型。所提出的模型考虑了车辆间距的变化和几何变化对通道路径损耗的影响。该研究还基于现实的交通流模型来考虑不同的天气条件和车辆机动性，该模型考虑了一天中不同时间的交通密度。蒙特卡罗模拟用于检查针对不同传输场景获得的统计模型。此外，还对统计模型和蒙特卡洛模拟进行了Kolmogorov-Smirnov检验，以验证它们代表相同的分布。结果表明，信道统计分布随交通流量和车距的变化而变化，在一天的不同时间会发生变化。结果还表明，当考虑单个反射器时，非视线分量的路径损耗值明显大于通道的视线分量的路径损耗值。然而，在高峰时间，当车辆间距变短时，多次反射的路径损耗值显着降低。