Research Area: Vehicular Ad Hoc Networks
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.
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Author(s) Name: Rukhsar Sultana, Jyoti Grover, Meenakshi Tripathi
Journal name: Vehicular Communications
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Publisher name: ELSEVIER
DOI: 10.1016/j.vehcom.2020.100284
Volume Information: Volume 27, January 2021, 100284
