Performance Comparison of AODV, AODV-ETX and Modified AODV-ETX in VANET using NS3

Vehicular Ad-hoc Networks (VANET) is used by autonomous vehicles as an efficient and reliable external vehicle communication. The routing protocol that has a stable and efficient performance is one that affects the quality of vehicle communication. This research simulates and analyzes the performance of VANET routing protocols, namely Ad-hoc On-demand Distance Vector (AODV), Ad-hoc On-demand Distance Vector-Expected Transmission (AODV-ETX), and Modified AODV-ETX using Network Simulator 3 (NS3). Our experiment shows that AODV has the best throughput performance, AODV-ETX performs the best Overhead and Packet Delivery Ratio, in terms of Modified AODV-ETX shows the best goodput performance compared to the others. Overall, the Modified AODV-ETX with My Route Timeout (MRT) and Active Route Timeout (ART) values 80 seconds provides better performance compared to AODV-ETX.