Efficient Directional Information Dissemination Approach in Vehicular Ad Hoc Networks

Abstract

Vehicular Ad hoc Networks (VANETs) are attracting huge attention from research community these days. Timely delivery of information to the potential vehicle nodes is a challenging task. High mobility, frequent change in topology and uneven density of vehicles, makes the task of selecting vehicle as relay node for information dissemination difficult. Broadcasting is the simpler and common technique to serve multiple vehicles simultaneously. The conventional broadcasting approaches results in broadcast storm problem which leads to channel contention, and frequent collisions in the network. In this paper we are proposing an efficient information dissemination approach, where broadcast suppression is done by reducing the number of relay vehicle nodes and at the same time allocates higher probability to the most suitable vehicles for rebroadcasting the message in the direction of concern. Simulation of the proposed approach shows less number of collisions, low end to end delay and high message delivery ratio.