Information dissemination strategies for safety Applications in VANET: A review

Abstract

The Intelligent transportation system (ITS) aims to improve the performance of the transportation systems. Vehicular ad hoc networks (VANETs) are the potential mechanism by which ITS can realize its goal. VANET supports the idea of communication among moving vehicles. The next generation Vehicles is equipped with many embedded sensors, high processing power and wireless communication capabilities. These communication and computing capabilities has potential to enhance transportation safety, efficiency and provide infotainment while on the road. In VANET moving vehicles form ad-hoc networks through wireless connection for exchanging critical information. Safety related information dissemination is one to many communication, so multicasting or broadcasting schemes are utilized for information dissemination. Delivery of safety related messages must be fast and reliable. This criterion draws the researchers' focus to develop efficient dissemination schemes. This review paper discusses safety related data dissemination strategies, along with comprehensive classification, challenges and future research direction.