Abstract Vehicle-to-vehicle (V2V) communication using Dedicated Short Range Communications (DSRC) technology promises to help drastically reduce vehicle collisions. DSRC allows vehicles in a highly mobile and complex network to send and receive safety messages with more reliability and lower latency compared with other wireless technologies used for automotive communications. However, there are many factors that could cause a safety-critical automotive application to become unreliable due to communication failures. While the reliability of V2V communication has been a subject of study by several researchers, there are still open questions regarding how the placement of the DSRC devices (inside or outside the host vehicle), the vehicle’s interior elements and the differences in altitude can affect the V2V communications. This article provides experimental testing data and analyses in order to quantify the impacts of relative vehicle speeds, altitude differences between vehicles, and interior obstacles on V2V communication range and reliability for opposite traffic, in both city and highway environments. We discuss how these results can adversely affect the design parameters of safety critical applications by considering the V2V application “Safe Pass Advisory” on two-lane rural highways.

中文翻译：

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安全关键应用中车对车通信的可靠性程度：一项实验研究

摘要 使用专用短程通信 (DSRC) 技术的车对车 (V2V) 通信有望帮助大幅减少车辆碰撞。与用于汽车通信的其他无线技术相比，DSRC 允许车辆在高度移动和复杂的网络中发送和接收安全消息，并且具有更高的可靠性和更低的延迟。然而，由于通信故障，有许多因素可能导致对安全至关重要的汽车应用变得不可靠。虽然 V2V 通信的可靠性一直是几位研究人员研究的主题，但关于 DSRC 设备的放置（主车辆内部或外部）、车辆内部元素和海拔差异如何影响车辆，仍然存在悬而未决的问题。 V2V 通信。本文提供了实验测试数据和分析，以量化相对车速、车辆之间的高度差异和内部障碍物对城市和高速公路环境中对面交通的 V2V 通信范围和可靠性的影响。我们通过考虑双车道乡村公路上的 V2V 应用“安全通行咨询”来讨论这些结果如何对安全关键应用的设计参数产生不利影响。