RFID Assisted Vehicle Navigation Based on VANETs

Abstract

Nowadays, due to the global trends of urbanization. Complex urban structure leads to the positioning inaccuracy issue in Global Positioning System (GPS) or even conventional navigation failure. To deal with the positioning inaccuracy issue and/or navigation failure, the real time updated environmental information are required to be provided. Thanks to the developments of Vehicular ad hoc networks (VANETs) communication systems and Radio Frequency Identification (RFID) systems, the real time vehicular and positioning information can be collected to deal with the position inaccuracy problem, and the navigation system can be improved by local information exchanging with vehicles and infrastructure. In the previous works, the proposed systems can increase accuracy or help GPS locate the vehicle. However, the drawbacks are that the designed systems cannot locate vehicle and do path planning independently without GPS. In this thesis, an RFID-enhanced VANET system is proposed to provide accurate path planning, determined at a server in a real time manner based on the shared vehicular information and positioning information. Specifically, the RFID system is utilized for reading accurate positioning information stored in RFID tags, and vehicular information can be collected and delivered to the server via VANETs. The server integrates this information and calculates the fastest time path for the individual vehicles. Simulations demonstrate that our system can perform more accurate positioning and efficient path planning, compared to the traditional navigation system based on GPS.