A Critical Review of Software Defined Networks Enabled Vehicular Ad Hoc Network

Abstract

—Software-Defined Networking (SDN) enabled Vehicular Ad-hoc Networks (VANETs) are a new paradigm for vehicular communication that leverages the benefits of SDN to improve the efficiency, reliability, and security of VANETs. In an SDN-based VANET, the traditional centralized control plane architecture is replaced by a SDN controller that manages the network's routing decisions. The controller has a global view of the network topology and can dynamically adjust the routing paths based on changing traffic conditions, environmental factors. While SDN enabled VANETs offer many benefits, there are also several challenges. Security is a critical concern in SDN enabled VANET architectures must address such as authentication, access control, and data privacy. Therefore, the researcher presents authentication approach to solve the challenges. However, the authentication framework still has challenges in privacy, security, cost. Therefore, in this paper we summarize the existing authentication scheme to determine the limitation and the future direction.