The roadside unit (RSU) plays an important role in VANET environments for privacy preservation. In order to conserve the privacy of a vehicle, the issued certificate must be updated frequently via RSUs. If a certificate expires without being updated, the services for the vehicle will be terminated. Therefore, deploying as more as possible RSUs ensures that the certificate can be updated before ...

The computer vision-based roadside occupation surveillance system is a key infrastructure component of Cooperative Intelligent Transport Systems. However, traffic images captured under low-light conditions suffer from low visibility and unexpected noise, leading to negative effects on supervision management. Despite the great progress achieved in recent years, existing night image enhancement a...

INTRODUCTION Several uses of remote sensing devices (RSDs) have been proposed, such as on-road identification of high emitting vehicles and monitoring on-road vehicle emissions for program evaluation purposes. The Bureau of Automotive Repair (BAR) conducted a study to evaluate the ability of RSDs to consistently identify vehicles with excessive emissions and correctly classify the vehicles as f...

In this paper, we introduce an efficient anonymous authentication protocol in Vehicular Ad-hoc Networks (VANETs) [5] to resolve the issue on anonymous authentication for communication between roadside units and vehicles. Our proposed protocol cannot only guarantee privacy, anonymity, and other basic cryptographic requirements but also provide traceability of illegal users. Our proposed protocol...

VANET is the technology of building a robust Ad-Hoc network between mobile vehicles and each other, besides, between mobile vehicles and roadside units. Throughout the world, there are many national and international projects in governments, industry, and academia devoted to the development of VANET protocols. In this paper I have reviewed the various security protocols used for vehicular ad ho...

The IEEE 802.11(p)/1609 network is a promising candidate for future vehicular communication networks. In this new network, the operation of a new Wave Basic Service set (WBSS) is defined for vehicular environments. Due to the deployment cost consideration, roadside units (RSUs) in such networks are usually installed only at hot spots and intersections, causing the service coverage of RSUs to be...