Multiflow TCP Traffic in VANETs: Performance Comparison of OLSR and AODV Routing Protocols

In this paper, we investigate the performance of OLSR and AODV protocols in a Manhattan grid scenario when sending triple TCP flow over FTP. We considered data rates of 0.1 Mbps and 1 Mbps. For the simulations, we used SUMO and NS3. We considered IEEE 802.11p standard and TwoRayGroundPropagationLossModel. We use through-put and cwnd as evaluation metrics.

The simulation results show that for small data rates, routing has a big effect on the performance of thenetwork and AODV has better link stability and performance compared with OLSR. For big data rates, both protocols have almost the same performance. Because of congestion, node stack overflow and the routing have a small effect.

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