Vehicle To Vehicle Communication through VANET using Cognitive Radio Technology for Enhanced Spectrum Sensing

Abstract

 As vehicles become more intelligent and connected, the ability for them to communicate directly with each other—known as vehicle-to-vehicle (V2V) communication—is becoming essential for safer and more efficient roads. Cognitive radios are capable of scanning their environment to detect unused spectrum, or "spectrum holes," allowing vehicles to exchange data without interfering with other devices. This dynamic spectrum access is especially useful in crowded traffic scenarios where reliable communication is critical. Our system is designed to transmit key information such as speed, engine temperature, and the distance to nearby vehicles—all in real time. The system is designed to continuously monitor and share key data from each vehicle, such as speed, engine temperature, and the distance to nearby vehicles. A simulation that replicates real-time communication between vehicles is uses in this. The results were promising—vehicles using cognitive radios were able to exchange information quickly and reliably, with fewer delays and better spectrum efficiency compared to traditional methods. A prototype is also used, where it helps vehicles share accurate information with each other without causing confusion or picking up unwanted signals and ensuring that cars can exchange critical data accurately, without adding noise or errors, helping drivers stay informed and make better decisions on the road.