Vehicular ad-hoc network (VANET) is an emerging field of mobile ad-hoc network (MANET) which facilitates intelligent transport system (ITS). It thus helps in enhancing the real-time driving experience and road safety. Due to association of VANET with life-critical applications, there is a dire need to understand each and every aspect of it in terms of architecture, security, applications, routing, and so forth, before bringing it into implementation. Although there exist numerous studies on VANETs, they tend to cover only individual aspects of it. This first of its kind survey aims to provide a combined and thorough study of each aspect of VANET along with their advantages and limitations in a single solid document. Different architectures proposed till date have been explored along with their shortcomings and the possible applications which are supported in VANETs. Comparison of various wireless technologies used in VANET based on the range requirement of different VANET applications and various routing protocols that are best suited for VANET on the basis of the application requirement is done. It also discusses the various security attacks possible in VANET, the risks associated with them, and the possible security solutions available for these attacks. Various optimization and bio-inspired techniques as well as intrusion detection systems for enhancing security in VANET are also analyzed. Finally, various simulators have been investigated, and comprehensive analysis has been done with respect to the feasibility of implementation of VANETs in these simulators. This research is believed to assist the researchers in understanding the current state of research in VANETs.

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关于 VANET 的详细教程调查：新兴架构、应用程序、安全问题和解决方案

车载自组织网络（VANET）是移动自组织网络（MANET）的新兴领域，它促进了智能交通系统（ITS）。因此，它有助于增强实时驾驶体验和道路安全。由于 VANET 与生命攸关的应用程序相关联，因此在将其付诸实施之前，迫切需要在架构、安全性、应用程序、路由等方面了解其各个方面。尽管有许多关于 VANET 的研究，但它们往往只涵盖它的个别方面。这是同类调查中的第一个，旨在在一个单一的实体文档中对 VANET 的各个方面及其优点和局限性进行综合和彻底的研究。迄今为止提出的不同架构及其缺点和 VANET 支持的可能应用已被探索。根据不同VANET应用的范围要求，比较了VANET中使用的各种无线技术，以及根据应用要求最适合VANET的各种路由协议。它还讨论了 VANET 中可能存在的各种安全攻击、与它们相关的风险以及可用于这些攻击的可能的安全解决方案。还分析了用于增强 VANET 安全性的各种优化和仿生技术以及入侵检测系统。最后，研究了各种模拟器，并对在这些模拟器中实施 VANET 的可行性进行了综合分析。这项研究被认为有助于研究人员了解 VANET 的研究现状。