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Performance study of CAM over IEEE 802.11p for cooperative adaptive cruise control

机译：基于802.11p的CAM的自适应自适应巡航控制性能研究。

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摘要

The IEEE 802.11p is the de-facto vehicular radio communication technology for road safety and efficiency applications. With the advancements in the autonomous vehicle technology, studies on applicability of the IEEE 802.11p and the related protocols for the autonomous driving applications are needed. In this paper, we study the impacts of vehicular communication on platooning control considering that the ETSI-standardised message set Cooperative Awareness Message (CAM) and the IEEE 802.11p are used for both the platooning and cooperative awareness applications. We first develop a theoretical model for the probability of a successful CAM transmission over IEEE 802.11p between platoon members by taking account of the existence of non-platoon vehicles on the road. The model is verified by comparing against simulation results obtained from the NS3 simulator. Finally, we investigate the impacts of the communication performance on the behaviour of platoons, specially the chain stability, when hundreds of vehicles share the wireless channel. The theoretical model reveals that thanks to the capture effect, communications between platoon members drastically outperform communications between arbitrary two vehicles on the road. The simulation results show that in contrast to an adaptive cruise control (ACC), which does not use vehicular communication, the IEEE 802.11p based vehicle to vehicle (V2V) communication aids for realizing stable platoons in highway scenarios.
机译：IEEE 802.11p是用于道路安全和效率应用的事实上的车载无线电通信技术。随着自动驾驶技术的发展，需要研究IEEE 802.11p的适用性以及自动驾驶应用的相关协议。在本文中，我们考虑到ETSI标准化消息集协作意识消息（CAM）和IEEE 802.11p同时用于队列和协作意识应用，研究了车辆通信对队列控制的影响。我们首先通过考虑道路上非排班车辆的存在，为排班成员之间通过IEEE 802.11p成功进行CAM传输的可能性建立理论模型。通过与从NS3仿真器获得的仿真结果进行比较来验证该模型。最后，当数百辆车共享无线通道时，我们研究了通信性能对排的行为的影响，特别是链稳定性。该理论模型表明，由于捕获效果，排成员之间的通信大大优于道路上任意两辆车之间的通信。仿真结果表明，与不使用车辆通信的自适应巡航控制（ACC）相比，基于IEEE 802.11p的车辆对车辆（V2V）通信有助于在高速公路场景中实现稳定的排。

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