Emergency Message Prioritization and Scheduling in Vehicular Ad hoc Networks

Vehicular Ad hoc network (VANET) is a subclass of Mobile Ad hoc networks (MANET). With the increasing deployment of Intelligent Transportation Systems (ITS) and VANET have become essential for improving road safety and communication among vehicles. In this study, it leverages the ns-2 simulator to investigate the effectiveness of emergency message scheduling strategies in VANETs under various mobility scenarios. This simulation model incorporates a dynamic network environment with vehicles employing the Destination-Sequenced Distance Vector (DSDV) routing protocol and IEEE 802.11p MAC layer. Emergency messages, crucial for timely response to critical events on the road, are scheduled using a proactive scheduling mechanism. The simulation considers scenarios where vehicles dynamically adjust their trajectories based on real-time traffic conditions. The work evaluates the impact of different emergency message scheduling strategies on network performance metrics, including throughput, packet delay, and packet loss. The simulation also explores the trade-offs between high-priority emergency messages and regular communication traffic, here it tries to reduce the Road accidents and prevent congestion by improving VANET Connectivity.