Software Defined Network Based VANET

As the number of cars is growing, there is also a rapid growth in the number of road side accident. Much of these incidents have occurred by an error made by a driver. New protocols and architecture are rapidly being created for intelligent transport networks by researchers all over the world. To guarantee passengers’ safety, several companies are now encouraging an ad hoc vehicular network (VANET). In another side, before practically adopting VANET technology, there are many concerns related to this field that need to be discussed. A number of attacks can occur in the event of no or weak protection, which can be affected by the performance and reliability of the process. In order to make VANET networks more successful, it implements software defined networking (SDN) technology. This technique was briefly called SDN-VANET. The SDN in VANET framework enables us to prevent from the limitations and complexities of basic VANET structures. Through handling the whole network from a single remote controller, it allows them to reduce the overall burden on the network. In this article we describe SDN-based VANET, its working, benefits, challenges and services, applications, and security attacks