A Survey on Software-Defined VANETs: Benefits, Challenges, and Future Directions
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In this paper, first we survey the state-of-the-art SDN based Vehicular ad-hoc Network (SDVN) architectures for their networking infrastructure design, functionalities, benefits, and challenges. Then we discuss these SDVN architectures against major security threats that violate the key security services such as availability, confidentiality, authentication, and data integrity. We also propose different countermeasures to these threats. Finally, we discuss the lessons learned with the directions of future research work towards provisioning stringent security and privacy solutions in future SDVN architectures. To the best of our knowledge, this is the first comprehensive work that presents such a survey and analysis on SDVNs in the era of future generation networks (e.g., 5G, and Information centric networking) and applications (e.g., intelligent transportation system, and IoT-enabled advertising in VANETs).
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