Epidemic algorithms for information dissemination in vehicular adhoc networks

Vehicular adhoc networks (VANET), which are created by vehicles equipped with short and medium range wireless communication, have an array of important applications in Intelligent Transport Systems (ITS). Many of these applications require reliable, bandwidth-efficient dissemination of traffic and road information via ad hoc network technology. This is a difficult task since inter-vehicular networks often lack continuous end-to-end connectivity and are characterised by large variations in node density. In this paper a new epidemic algorithm is introduced for information dissemination in highly dynamic and intermittently connected VANET. Realistic simulations in highway traffic show that the algorithm is capable of reliable and efficient information dissemination in VANET in the face of frequent networkfragmentation and large density variations. For the covering abstract seeITRD