Platooning, which is enabled by vehicle-to-vehicle (V2V) communication, is one of the most potential frameworks in the intelligent transport system (ITS) to enhance driving safety and improve traffic capacity. In a platoon, vehicles interact with each other by broadcasting beacons via Dedicated Short Range Communication (DSRC). In this work, we explore the impact of beacon transmission rate allocation on the network utility which involves not only network performance but also traffic safety and efficiency for the vehicular ad hoc network (VANET) composing of a single platoon. An optimization problem aiming at searching for an optimal beacon transmission rate allocation for platoon management is developed based on a network utility maximization framework. Particularly, adopting a synchronized P-persistent repetition (SPR) medium access control (MAC) protocol, an optimal beacon transmission rate allocation to achieve the network utility maximization, is obtained for a platoon at a certain cruise velocity. In the simulation, the correctness of the proposed approach is validated, and its advantages over the benchmark are demonstrated by comparisons.

中文翻译：

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同步P持久重复MAC协议下的信标传输速率分配优化

通过车对车（V2V）通信实现的排是智能运输系统（ITS）中最有潜力的框架之一，可以提高驾驶安全性并提高交通容量。在一个排中，车辆通过专用短程通信（DSRC）广播信标来彼此交互。在这项工作中，我们探讨了信标传输速率分配对网络实用程序的影响，该实用程序不仅涉及网络性能，而且还涉及组成单个排的车辆自组织网络（VANET）的流量安全性和效率。基于网络效用最大化框架，提出了一种优化问题，旨在为排管理寻找最佳的信标传输速率分配。尤其，采用同步P-Persistent Repetition（SPR）媒体访问控制（MAC）协议，可以在一定的巡航速度下为一个排获得最佳信标传输速率分配，以实现网络效用最大化。在仿真中，验证了所提方法的正确性，并通过比较证明了其优于基准的优势。