摘要：VANET have become a big research area with contributions split between government and industrial consortia, as well as the academic community. VANET is the special case of Mobile Ad Hoc Networks (MANET) [2]. VANET is mobile ad-hoc networking technologies which provide the facilities such as vehicle-to-vehicle and vehicle-to-roadside communication. A vehicle is assumed to be an intelligent mobile node in VANET which can communicates with its neighbor's node and other vehicles in the network. As in MANET, it is necessary to identify each vehicle in the VANET with a unique reference [3].Vehicular Ad Hoc Network is the new kind of ad-hoc networks that is implemented between vehicles on a road [1]. VANET is self-organizing communities of moving mobile nodes having large numbers of traffic such as trucks, buses, cars and small number of fixed infrastructure nodes such as highway rail grade crossings, traffic lights, and informational signals within radio broadcasting range. VANET is an emerging new technology that uses moving vehicles as nodes for creating a mobile network. In a network, VANET change every vehicle into a wireless node and permitting vehicles approximately 100 to 300 meters distance of each other to connect and, successively create a network of high range. As vehicles come out of the signal range and leave the network, other vehicles can link and consolidating vehicles to each other so that a mobile network is created. It is estimated that fire and police vehicles are first systems that will incorporate this technology to communicate with each other for safety purposes [4]. Content contribution using collective peer-to-peer model has become more popular in a Vehicular Ad Hoc Network. VANET is a good approach for providing road safety, traffic management, and documentary broadcasting for drivers and passengers. Vehicular Ad Hoc Networks are subclass of Mobile Ad Hoc Networks. They are usually made by vehicles as nodes communicate between them.
关键词：vehicular;feature benefits;analysis;academic community
