Software Defined Network Framework & Routing Protocol Based on VANET Technology

In recent years, different types of researchers have focused on the topic of vehicular ad hoc networks (VANETs) because of the different services they provide. VANET is a subset of Mobile Ad-hoc Network (MANET), which refers to a group of smart nodes. In present days, communication within the moving vehicles takes place because of the improvement in technology. These smart vehicles communicate within them or with a roadside unit to provide road safety, a more protected and effective driving experience, and protection against intruders. Messages in VANET are sent using open wireless channels. In recent years, several Vanet technologies are being developed to provide the better communication in between the vehicles, to detect accidents and transforming that information to other vehicles through packets. Even though vanet provides several services, there is an issue with this technology which can cause low latency in communication or delay in transferring the message. To overcome all these issues serval technologies have been emerging to provide the efficient communication between the moving vehicles. In this paper, we have discussed about the architecture of the Vanet, present emerging technologies and also about future challenges in Vanet. SDN (Software defined Network) framework is used to provide the effective communication interms of utilizing less delay. Fog Computing is one of the emerging technologies in vanet, where it performs storage and processing functions without any interruption of the third parties.