A STABILITY AND SECURITY ENHANCED ROUTING AND CLUSTERING ALGORITHM FOR VANET

Abstract

Vehicular Ad Hoc Networks (VANETs) face significant challenges due to frequent communication link disruptions caused by high vehicular mobility. Addressing these issues, this paper introduces a Dynamic and Reliable Routing Algorithm (DRRA) designed to enhance clustering stability and improve security. DRRA employs a novel Cluster Head (CH) election strategy based on relative mobility metrics to ensure reduced re-clustering and seamless communication. The algorithm integrates robust mechanisms to mitigate Sybil and Denial-of-Service (DoS) attacks, ensuring secure and efficient data dissemination. Simulation experiments conducted using NS-3.25 and SUMO validate the performance of DRRA, demonstrating significant improvements in metrics such as CH lifetime, network throughput, and packet delivery ratio compared to existing schemes. These results highlight DRRA's potential to enhance the reliability and security of VANETs, particularly in high-mobility and dense traffic scenarios, while addressing key limitations of current methodologies