本文针对车载自组织网络中车辆与路侧单元的网络连接性问题，以车队为研究单位，分析道路上到达车辆的移动属性，将车队与路侧单元的连通概率计算转变为到达车队长度概率的计算。提出车流较大情况下，车辆以车队行驶时的车头时距服从对数正态分布，并在此基础上用卷积公式推导出车队长度的概率模型，实例分析结果验证了提出的概率模型的准确性。
In view of the connection between vehicles and the roadside units in the Vehicular Ad Hoc Net-work, taking the platoon as the research unit, by studying the traffic property of the vehicles ar-riving on the road, the connectivity probability analysis had transformed into the probability cal-culation of the arrived platoon length. This paper proposed that when vehicles are driving in a platoon, the headways of vehicles were subject to a lognormal distribution, in the case of large traffic flow, and then deduced the probability model of the platoon length by convolution formula, and the results verified the correctness of the proposed probability model.
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https://doi.org/10.1109/GLOCOM.2014.7036800
Shao, C., Leng, S. and Zhang, Y. (2015) Performance Analysis of Connectivity Probability and Connectivity-Aware MAC Protocol Design for Platoon-Based VANETs. IEEE Transactions on Vehicular Technology, 64, 5596-5609.
https://doi.org/10.1109/TVT.2015.2479942
