A registration system for aiding in localization and routing in hybrid VANETs

Hybrid vehicular ad hoc networks (VANETs) allow Inter-Vehicle Communications and Roadside-to-Vehicle Communications. The proposed protocol utilizes the Roadside Units (RSUs) for the implementation of a registration process which allows for the provision of a localization service. The presented RSUs architecture breaks the VANETs into smaller regions managed by a RSU in which individual On Board Units (OBUs) register providing its current position and velocity vectors. Using the data provided by the OBUs, a localization service can be implemented. When the source need to send data, the location of the destination is calculated at the source RSU and the destination RSU using controlled flooding locates the destination vehicle and establishes a route path between source and destination. Simulation results show that it performs well providing good throughput, high packet delivery ration, low delivery delays with very low overhead.