[论文解读] Vehicular Ad-hoc Networks: Architecture, Applications and Challenges

Taoufik Yeferny, Sofian Hamad|arXiv (Cornell University)|Jan 12, 2021

Vehicular Ad Hoc Networks (VANETs)参考文献 24被引用 29

一句话总结

对 VANET 架构、面向 ITS 的关键应用以及设计与部署中的主要研究挑战的综述。

ABSTRACT

With the emergence of Information and Communication Technologies (ICT) and wireless embedded sensing devices into modern vehicles, Intelligent Transport System (ITS) becomes a reality and an indispensable component of smart cities. The purpose of ITS is to improve road safety and traffic efficiency as well as offering infotainments services. In fact, warning drivers in the right time about dangerous situations on the road and providing them with prior information about traffic will undoubtedly leads to enhance driver's safety and reduce traffic congestion. Technically speaking, ITS is based on self-organizing wireless networks, known as vehicular ad-hoc networks (VANETs). Mobile vehicles in VANET might play the role of stationary sensors in infrastructure-based networks. They can detect, gather and disseminate real-time data about traffic, driving conditions and potential hazards on roads. In this respect, we review in this study, recent developments on the design of VANET protocols and applications. We first introduce the architecture of VANETs then we review their unique characteristics and applications. Thereafter, we discuss the main research challenges and open issues to be considered for designing efficient and a cost-effective VANET protocols and applications.

研究动机与目标

• 通过 ICT 支撑的 VANETs 和车载自主感知，使 ITS 成为现实的动力源。
• 回顾 VANET 架构及其独特特征。
• 总结当前在安全、交通管理和信息娱乐方面的应用。
• 识别高效、具成本效益的 VANET 协议设计的主要研究挑战与未解问题。

提出的方法

• 对 VANET 架构、特征和应用进行全面文献综述。
• 系统地将应用分类为安全、交通效率和信息娱乐领域。
• 总结协议设计、部署、安全性和成本效益方面的挑战与未解问题。

实验结果

研究问题

• RQ1 VANET（ Vehicular Ad-hoc Networks ）的架构是什么，其组成部分如何相互作用？
• RQ2 VANET 在智能交通系统中的主要应用有哪些？
• RQ3 VANET 设计与部署中主要的研究挑战和未解问题是什么？

主要发现

• VANET 能实现自组织的无线网络，车辆充当移动传感器，用于实时交通数据和危险信息的获取。
• 应用涵盖安全警报、交通状况感知和信息娱乐服务。
• 主要挑战包括设计高效、可扩展且具成本效益的 VANET 协议，以及解决安全、隐私和部署问题。