Data Rate Control and Channel Aware Congestion Managing Approach to Improve QoS in VANETs

Vehicle ad hoc networks (VANET) require enhanced traffic systems, leading to the development or implementation of the Intelligent Transport System. However, although the situation differs between urban and rural locations, the problem of traffic congestion and the effect it has on the delivery of traffic messages continue to be a serious concern in certain regions. Despite the fact that a significant number of cars send requests for traffic status, they are unable to get accurate traffic-related information because of heavy traffic, insufficient channel capacity, or bandwidth constraints. The purpose of this research is to offer a data rate and channel-aware congestion management technique (DRCA) in order to control congestion and improve Quality of Service (QoS). It is the responsibility of the Roadside Unit (RSU) to gather information regarding the available channel, the interference level, and the signal-to-noise ratio of the nodes in this situation. The performance of all techniques is evaluated using performance measures like as PDR, Delay, Overhead, and data packet drop. The least improvement in DSRC performance is 5% in all performance metrics, while the most is 10% or more. The congestion is managed using the DRCS method that has been proposed, and the routing is improved without any additional overhead associated with the transmission of traffic status in the network.