Junction Adaptive Reactive Routing (JARR) Protocol for Vehicular Ad-Hoc Networks in a City Environment

摘要

The routing protocol was designed for VANET in a city environment. The main objective is finding not only the shortest but the most efficient path for a packet to reach its destination. Packets are routed through the fastest paths as opposed to the shortest. Fastest path is defined as the quickest time for a packet to reach a destination irrespective of distance. While the shortest path is still considered, the routing protocol adapts to the network conditions and performs routing reactively. Making use of the city topology, packets are routed from junctions to junctions. This means that routing decisions are made when a packet arrives at a junction, to decide which path to take next in order to reach the next junction. This process continues until the packet reaches its destination.