ITS: Power Efficient VANET-based Intelligent Transportation System

Vehicular Ad-hoc Networks (VANETs) are central to Intelligent Transportation Systems (ITS), facilitating vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication. Energy consumption, latency, and reliability remain challenges. This paper presents a power-aware VANET prototype that combines optimized routing protocols (OLSR, DSR, AODV), adaptive beaconing, and energy-saving methods such as low packet transmission rates (0.2s), minimized safety message sizes (100 bytes), and low-power idle states (0.009A). Simulations with NS-3 and SUMO exhibit a 22% decrease in energy usage, 15% reduced latency, and 12% better packet delivery ratio over baseline protocols. These developments lead to scalable, dependable, and energy-efficient ITS solutions.