On the Power of Cohorts -- Multipoint Protocols for Fast and Reliable Safety-Critical Communications in Intelligent Vehicular Networks

G. L. Lann
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引用次数: 7

Abstract

We report on recent findings related to safety-critical V2V multipoint communications in ad hoc networks of fully automated vehicles, in the presence of communication failures. Neither classical failure assumptions nor multipoint protocols at the core of existing communication standards can be considered, since they do not meet the high reliability and strict timeliness requirements set for safety-critical scenarios. We introduce a novel unbounded omission failure model, the concept of proxy sets which builds on the cohort construct, and Zebra, a suite of geocast, convergecast, and multicast protocols specifically designed for safety-critical 1-hop multipoint communications. Analytical expressions of worst-case termination time bounds are given for each Zebra protocol, which is mandatory with safety requirements. These results have a number of practical implications, which are discussed. They should be of interest to safety authorities and to the transportation industry involved in future deployments of intelligent vehicular networks.
队列的力量——智能车联网中快速可靠安全关键通信的多点协议
我们报告了在存在通信故障的情况下,全自动车辆自组织网络中安全关键型V2V多点通信的最新发现。既不能考虑经典的故障假设,也不能考虑现有通信标准核心的多点协议,因为它们不满足为安全关键场景设置的高可靠性和严格的及时性要求。我们引入了一种新的无界遗漏故障模型,建立在队列结构上的代理集的概念,以及Zebra,一套专门为安全关键的1跳多点通信设计的geocast, convergecast和多播协议。给出了每个Zebra协议的最坏情况终止时限的解析表达式,这是强制性的安全要求。这些结果具有许多实际意义,本文将对此进行讨论。安全当局和参与未来智能车辆网络部署的运输行业应该对此感兴趣。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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