QualNet Simulation of VANET Scenario for TLE ( Traffic Light Environment ) Performance Evaluation

Vehicular Ad-hoc Networks (VANETs) are attracting considerable attention from the research community and the automotive industry to improve the services of Intelligent Transportation System (ITS). As today’s transportation system faces serious challenges in terms of road safety, efficiency, and environmental friendliness, the idea of so called “ITS” has emerged. Due to the expensive cost of deployment and complexity of implementing such a system in real world, research in VANET relies on simulation. The Traffic Light Environment (TLE) on a small section of a road map is simulated with the help of QUALNET in order to understand the significance of VANET in our day-to-day lives. Traffic data from a limited region of road Map is collected to capture the realistic mobility. The realistic mobility model used here considers the driver’s route choice at the run time. It also studies the clustering effect caused by traffic lights used at the intersection to regulate traffic movement at different directions. Finally, the performance of the VANET is evaluated in terms of number of sent packets, average unicast throughput and unicast end to end delay as statistical measures for driver route choice with the traffic light scenario.