Vehicular Ad Hoc Network (VANET) is a form of Mobile Ad Hoc
Networks, but the nodes of this network are vehicles with special equipment to enable
them to communicate with each other. These networks need to implement protocols to
ensure that messag
es are reached to their destinations and achieve the desired goal of the
application.
In this paper, we present an analysis of the performance of a number of major routing
protocols used in these networks which protocols AODV (Ad hoc On-Demand Distance
Vector), DSR (Dynamic Source Routing), and OLSR (Optimized link state routing). This
analysis is based on various parameters such as packet delivery ratio and end-to-end delay,
in order to find the best protocol can be used in the network with low density.
To achieve this purpose, we used a simulator OPNET_17.5. Depending on the
simulation results we have obtained and the analysis and comparison of these protocols at
different low density contract .We found that the protocol AODV is the best among the
studied protocols under the conditions set out in this study.
