Context-Aware Routing for hovering information in Vehicular Ad-Hoc Networks

Abstract

Road traffic information is considered vital for drivers and passengers in a VANET. Recently many approaches have been proposed for sharing the road information among the vehicles on the roads. Applications that use hovering information for road safety consider TTL and a radial distance from a center point to disseminate the information in a geographically limited area. These approaches generally do not define any technique for the routing of content. In this paper, a context-aware routing mechanism is proposed for the content that hovers in a predefined geographic region. Road probability model is presented to calculate the probability of content to be disseminated on the roads. The vehicles use an efficient low overhead routing mechanism to forward the content/information towards the destination/anchor region. Proposed protocol is evaluated over a road network and the results show that it can be helpful in the design and deployment of VANETs.