Abstract

Vehicular Ad hoc NETworks (VANETs) are self-organizing ad hoc networks that are specifically designed for communication among vehicles. Vehicles are themselves the nodes in the ad hoc network. In VANETs, a source node relies on intermediate nodes to route its packets along multiple hops to the destination node. The movement of nodes may cause links to break. Rough Set Theory (RST) which is a mathematical tool to deal with vagueness and uncertainty is applied earlier through routing in Mobile Adhoc NETworks (MANETs) using VPRS-WT protocol. In this paper, the β-wt protocol, a modified version of the earlier protocol VPRS-WT, is used to find the optimal Next Hop for routing among vehicular nodes moving at high velocities on freeways. The simulations show that the β-wt protocol performs better than DSR for vehicular nodes moving at high velocities.

Paper Details