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Security of SDN-based vehicular ad hoc networks: State-of-the-art and challenges

机译：基于SDN的车辆临时网络的安全性：最先进的和挑战

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Development of Software Defined Networking (SDN) based Vehicular Ad Hoc Networks (VANETs) is one of the key enablers of 5G technology. VANETs enable different types of services through communication between vehicles and road side units. Intelligent Transportation System (ITS) introduced this emerging technology to provide travelers comfort, safety, and infotainment services with improved traffic efficiency. Traditional VANET is not sufficient to handle dynamic and large scale networks with their fixed and embedded policies, and complex architecture. Open Network Foundation (ONF) is promoting the adoption of SDN through open standards' development by facilitating logical and centralized control of the entire network. SDN enables VANET to be a flexible and programmable network with the advent of new services and features. A centralized controller in the control plane controls the overall network functionalities and forwarding of data packets through the forwarding devices in the data plane. SDN enhances the efficiency of VANET and provides security benefits to VANET. But, it causes new security problems also with the integration of new technologies and architectural components in the network. This article provides a comprehensive review of VANET, SDN, and SDN based VANETs based on their architectural and implementation details. Then it explains the effect of SDN on the security of VANET when it is integrated with traditional VANET. This paper encompasses a comprehensive review of proposed approaches providing security solutions for SDN based VANETs and outlines emerging research issues as future directions. To the best of our knowledge, this is the first article presenting the comprehensive review of security aspects of SDN based VANET considering architectural and security services on different layers of a network. (C) 2020 Elsevier Inc. All rights reserved.
机译：软件定义网络（SDN）的车辆临时网络（VANET）的开发是5G技术的关键促进器之一。 Vanets通过车辆和道路侧单元之间的通信实现不同类型的服务。智能交通系统（其）介绍了这项新兴技术，为旅行者提供了舒适，安全和信息娱乐服务，具有改善的交通效率。传统的VANET不足以处理带有固定和嵌入式政策和复杂架构的动态和大规模网络。开放网络基金会（ONF）通过促进整个网络的逻辑和集中控制，通过开放标准的开发推广SDN的采用。 SDN使VANET能够成为一个灵活和可编程的网络，并出现新的服务和功能。控制平面中的集中式控制器通过数据平面中的转发设备控制整体网络功能和数据分组的转发。 SDN增强了Vanet的效率，为Vanet提供了安全益处。但是，它还通过集成网络中的新技术和架构组件来引起新的安全问题。本文基于其建筑和实施细节，对VANET，SDN和SDN基于SDN的VANET进行了全面的审查。然后，它解释了SDN与传统华人集成时的VANET安全的影响。本文涵盖了对为未来方向提供了基于SDN的VANET的安全解决方案的拟议方法的全面审查，并概述了新兴的研究问题。据我们所知，这是第一篇文章，介绍了基于SDN基于VANET的安全方面的全面审查，考虑到网络的不同层的架构和安全服务。 （c）2020 Elsevier Inc.保留所有权利。

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