Abstract: Mobile ad-hoc network is a part of ad-hoc network which can change locations and synchronize itself. Because of their mobile nature they use wireless connections to connect different networks; it would be a Wi-Fi connection or some other medium. With growing technologies VANET (Vehicular ad-hoc network)are special category of dynamic wireless network. VANET allows vehicles to communicate with the roadside equipments. It works under ITS (Intelligent transportation system). In VANET nodes communicate wirelessly with their different mobility nodes. Mobile communication, traffic monitoring safety and public utility management are the key components of VANET. In VANET there are two modes of vehicle communication which are names as Vehicle to vehicle (V2V) and Vehicle to infrastructure (V2I). Infrastructure absence is the main characteristics of VANET such as access point or base station, existing in the Wi-Fi, WI-Max, GSM or UMTS. Vehicular communication explains the numerous initiatives of the research which enhance the security, efficiency of transportation systems, supplying, and traffic in the road conditions such as emergency, construction sites and congestion. The attributes of VANET works with a solution which takes routing protocols of MANET. IVCN (Inter Vehicle Communication Network) is the new approach of ad-hoc network.
Keywords: VANET (Vehicular ad-hoc network), WI-FI, WI-Max, GSM, UMTS, Vehicle to vehicle (V2V).