Traffic Control and QoS improvement Analysis in V-to-V and V-to-RSU Communication in VANET

Traffic congestion control and handling are the major problems on roads in rural areas as well as in urban areas in the Vehicular Ad-hoc Network (VANET). The intelligent transport system is the public’s demand to control and manage the traffic efficiently. Vehicles are moving on the roads at different speeds and using different directions to reach their destinations. The vehicles are also very smart and can make a decision to go in any other direction because of construction work going on the roads or for any other reason traffic is congested on any point of the road. The proper utilization of traffic status enhances the Quality of Service (QoS) and reduces unnecessary delays in vehicle movement. In this paper, we propose an analysis of recent or existing schemes that improved QoS during the communication of vehicles to other vehicles (V to V) and vehicles to Road Side Units (V to RSUs). The RSU is the responsible system, and the responsibility of this system is to handle the load on roads or manage traffic on roads efficiently. In this analysis, participants also mentioned an overview of routing protocols, services, and factors that affect the performance of VANET. The recent techniques are improving performance, but each approach has a few disadvantages, so highlight those drawbacks. Proper bandwidth utilization means no congestion during routing, but this is not an easy task. The detailed survey is very helpful for doing something new in the field of traffic management in VANET.