Leveraging proactive and reactive intersection-based routing protocols for collaborative downloading in VANETs

© 2016 IEEE. Many routing algorithms for vehicular ad-hoc networks have relied on geographic forwarding as a means to reduce the paths' sensitivity to individual vehicle movements. In recent years, the basic forwarding strategies have been refined to create road-based paths, connecting successive road intersections selected on the basis of the connectivity between them. Revisiting this idea, we present two different flavors of a new protocols (Intersection-Based Routing on Virtual Nodes): called VNIBR reactive and proactive. These variations can achieve better performance than state-of-The-Art routing protocols by relying on a virtualization layer that transparently deals with the problems of mobility. With the aim of analyze the strengths and weaknesses of the new protocols, we have proposed a friendly urban scenario where we prove our routing protocols by means of simulations with different vehicle densities, looking at overhead, packet delivery ratios and end-To-end delays.