Published Paper Details:

Currently vehicular ad hoc network (VANET) is emerging backbone for communication in roads. It can be used for exchanging traffic information and emergency information from the controlling authority of the vehicle. But efficient routing in VANET is very difficult as because of mobility of the vehicle. The wireless links in this network are highly error prone and can go down frequently due to mobility of nodes, interference and less infrastructure. Therefore, routing in ad hoc network in general and VANET in particular is a critical task due to highly dynamic environment. Most of the existing routing protocols are designed for wired and structured network. Cost of sending routing updates is much greater in a wireless network than in a wired network. Managing stable route with less number of routing updates is very difficult to achieve. On the other hand if routing updates sent too often, it will be wastage of battery of mobile car nodes and channel bandwidth. Therefore adopting these protocols in VANET is very difficult if not impossible. Another problem is road structure differs from place to place. In most of the urban area roads have road side unit. But rural interior area do not have road side unit. As per different proposed models topology rapidly changes with time. Main challenge in situation is to maintain the routing path, reduce the overhead and reduce the delay. In our proposed work we have suggested a model where roadside units logically form a doubly link list in urban area. Each RSU controls the vehicular nodes near to its geographic proximity.The interior places which dose not have RSU, is taken care by using cluster based communication. These two structures are interconnected to manage the total communication scenario. This proposed model is much more robust to take of all possible routing situations.