Smart Predictive Tracking and Collision Resolution for Next Generation Vehicular Sidelink Communications

Abstract

Reliable, low latency communication is vital for emerging vehicular applications, yet existing protocols, such as the new radio for vehicle-to-everything (NRV2X) Mode 2 encounter resource allocation conflicts in dense traffic. The growing data demands of future smart networks will force sidelink radios to resolve more sophisticated collisions within a few milliseconds while sustaining higher reliability. This study introduces smart predictive tracking and collision resolution (SPTCR), a novel protocol designed to enhance resource allocation in vehicular sidelink communications. SPTCR integrates a predictive resource allocation mechanism with an ID-based collision resolution strategy to improve communication reliability. Its performance is evaluated through analytical modeling and simulations conducted in both controlled environments and real-world scenarios modeled in simulation of urban mobility (SUMO). Results demonstrate that SPTCR outperforms NRV2X Mode 2 in high-traffic conditions, achieving up to a 32.1 % improvement in packet reception ratio (PRR) at a 500 m distance. Additionally, SPTCR significantly extends the communication range, ensuring robust performance across diverse traffic scenarios.