Optimal Broadcasting Algorithm for VANET System

Abstract

New and innovative approaches are expected to improve road safety and prevent road traffic incidents, based on the exchange of information between vehicles. Our aim is to respond to the need for rapid and reliable exchange of messages containing information on the state of vehicles. For this purpose, we propose an algorithm that prioritize the broadcasting of emergency messages and privilege long-distance communication so as to speed up the dissemination of warning messages without saturating the VANET.

Enhancing Route lifetime in Vehicular Ad Hoc ‎Networks Based on Skellam Distribution Model

“…In the second stage, vehicle S sends a request packet exclusively for vehicles within the path chosen by Stage 1 to search for a suitable route to vehicle D. This stage attempts to utilize the control packets to discover possible routes that can be established between vehicles S and D , bearing in mind that any of these routes must be within the allowed TTL. Note that when setting the TTL value, it should not be too low, which leads to the packets being dropped early, that is, before they reach a suitable distance, and at the same time it should not be too large, which leads to saturation in the channel [29]. After that, the estimated lifetime of the discovered routes is calculated and arranged in descending order, so that each route is given a specific rank according to its estimated lifetime.…”