In this paper, we focus on the performance of vehicle-to-vehicle (V2V) communication adopting the Dedicated Short Range Communication (DSRC) application in periodic broadcast mode. An analytical model is studied and a fixed point method is used to analyze the packet delivery ratio (PDR) and mean delay based on the IEEE 802.11p standard in a fully connected network under the assumption of perfect PHY performance. With the characteristics of V2V communication, we develop the Semi-persistent Contention Density Control (SpCDC) scheme to improve the DSRC performance. We use Monte Carlo simulation to verify the results obtained by the analytical model. The simulation results show that the packet delivery ratio in SpCDC scheme increases more than 10% compared with IEEE 802.11p in heavy vehicle load scenarios. Meanwhile, the mean reception delay decreases more than 50%, which provides more reliable road safety.

中文翻译：

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DSRC在V2V通信中的性能分析和改进

在本文中，我们集中讨论在周期性广播模式下采用专用短程通信（DSRC）应用的车对车（V2V）通信的性能。在完善的PHY性能假设下，研究了一个解析模型，并使用定点方法来分析基于IEEE 802.11p标准的全连接网络中的数据包传输率（PDR）和平均延迟。结合V2V通信的特性，我们开发了半持久竞争密度控制（SpCDC）方案来提高DSRC性能。我们使用蒙特卡洛模拟来验证分析模型获得的结果。仿真结果表明，在重型车辆负载情况下，SpCDC方案中的数据包传输率与IEEE 802.11p相比提高了10％以上。同时，