Performance Comparison of AODV and OLSR Using 802.11A And DSRC (802.11P) Protocols in Urban Vanets

Abstract

A Vehicular Ad Hoc Network (VANET) is a network formed purely among vehicles without presence of anycommunication infrastructure as base stations and/or access point. Frequent topological changes due tohigh mobility is one of the main issues in VANETs. In this paper we evaluate Ad-hoc On-Demand DistanceVector (AODV) and Optimized Link State Routing (OLSR) routing protocols using 802.11a and 802.11p ina realistic urban scenario. For this comparison, we chose five performance metrics: Path Availability, Endto-End Delay, Number of Created Paths, Path Length and Path Duration. Simulation results show, that formost of the metrics evaluated, OLSR outperforms AODV when 802.11p and that 802.11p is more efficientin urban VANETs