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In this paper, we investigate the performance of OLSR and DSDV protocols in a highway VANET scenario. The mobility patterns of vehicles are generated by means of CAVENET (Cellular Automaton based Vehicular Network). As communication protocol simulator, is used NS3 (Network Simulator 3). The simulations are done for four different scenarios based on nodes ID. We use Throughput and Packet Delivery Ratio (PDR) as evaluation metrics. For the simulations we used IEEE 802.11p standard and TwoRayGroundPropagationLossModel. We compared the performance of both protocols and the simulation results have shown that OLSR protocol performs better than DSDV.