A NOVEL METHODOLOGY FOR EXIT AND ENTRY OF NODES IN MOVING CLUSTER WITH RESERVED CLUSTER HEAD IN AD-HOC VANET ARCHITECTUREA NOVEL METHODOLOGY FOR EXIT AND ENTRY OF NODES IN MOVING CLUSTER WITH RESERVED CLUSTER HEAD IN AD-HOC VANET ARCHITECTURE

Abstract

Vehicular Ad-hoc Networks (VANETs) are a sub-class of Movable Ad-hoc Networks (MANETs), exclusivelypremeditated for vehicle-to-vehicle (V2V) along with vehicle-to-infrastructure (V2I) communication. Owingtowards the highly dynamic topology with high-speed movement of vehicles, maintaining stable clusters and seamless communication poses significant challenges. This research proposes a novel methodology for managing the entry and exit of nodes in moving clusters by introducing a Reserved Cluster Head (RCH) mechanism in the VANET architecture.The proposed framework ensures robust and efficient cluster management by designating a backup or reserved cluster head in advance, which takes over leadership seamlessly upon the exit of the current cluster head. The approach minimizes cluster reformation time, packet loss, and communication disruption. Entry of new nodes is managed through a priority-based and signal-strength-aware admission process to ensure cluster stability. The methodology is validated using simulation tools (such as NS2 or SUMO with NS3), and performance is evaluated using key parameterscounting Throughput, Packet Deliverance Ratio (PDR), Packet failure Ratio (i.e., PLR), End-to-End Interruption, and Jitter. Results demonstrate that the proposed approach outperforms existing clustering techniques by providing better continuity, reduced control overhead, and improved Quality of Service (QoS) for real-time VANET applications.