A Secure Wireless Protocol for Intersection Collision Warning Systems

Abstract

The Engineering Meetings Board has approved this paper for publication. It has successfully completed SAE's peer review process under the supervision of the session organizer. This process requires a minimum of three (3) reviews by industry experts.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. Positions and opinions advanced in this paper are those of the author(s) and not necessarily those of SAE. The author is solely responsible for the content of the paper. A process is available by which discussions will be printed with the paper if it is published in SAE Transactions.Persons wishing to submit papers to be considered for presentation or publication by SAE should send the manuscript or a 300 word abstract to Secretary, Engineering Meetings Board, SAE. In this paper, we assumed that every vehicle is equipped with a wireless communication unit and every intersection has a wireless unit called the Intersection Traffic Controller (ITC). All vehicles near an intersection communicate with the corresponding ITC to send their dynamic information such as speed, acceleration, lane number, road number, and distance from the intersection. Though the wireless technology will be a viable technology for developing intersection collision warning systems, it is subject to various types of security attacks unless the system is properly designed. This paper presents a secure wireless protocol for intersection collision warning systems with a detailed bit level description of the protocol. The security is maintained using a chain of digital certificates issued by various federal and state organizations. The vehicles validate the certificate of the ITC using the public key issued by a federal organization, such as the US Department of Transportation. This paper also presents the performance analysis of the intersection collision warning system. Printed in USA