Collision avoidance and road safety applications require highly accurate vehicle localization techniques. Unfortunately, the existing localization techniques are not suitable for road safety applications as they rely on the error-proneGlobal Positioning System (GPS). Likewise, cooperative localization techniques that use intervehicle communications experience high errors due to hidden vehicles ...

Vehicular ad hoc networks (VANETs) offer a promising technology to promote traffic safety by providing real-time communications in the form of vehicle-to-vehicle and vehicle-toinfrastructure communications. Roadside units (RSUs) play an important role in the dissemination of warning messages that used in VANETs’ safety-related applications. However, due to the expense of deploying and maintaini...

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Location based services (LBSs) are promising value-added services in vehicular ad hoc networks (VANETs), which can yield substantial economic profits. To extensively deploy LBSs in VANETs, it is essential to establish an efficient privacy-preserving key management scheme. In this paper, we point out a privacy weakness in a recent key management scheme based on group signatures for LBSs in VANET...

In recent years, vehicular ad-hoc networks (VANETs) is one of the rapid growing technology to form a network of vehicles and between vehicles and roadside units (RSUs) to provide a variety of services like safety, traffic efficiency and infotainment information to its drivers and passengers. In this paper, we have considered the communications are from V2I, I2V, I2I and on the basis of scheduli...

As a promising topic of research, Vehicular Cloud (VC) incorporates cloud computing and ad-hoc vehicular network (VANET). In VC, supplier vehicles provide their services to consumer in real-time. These have significant impact on the applications internet access, storage data. Due high-speed mobility vehicles, users need mechanism discover vicinity. Besides this, quality service varies from one ...

Recently, Jung et al. proposed a robust conditional privacy-preserving authentication protocol in vehicle ad-hoc networks. However, Jung et al.’s authentication protocol cannot provide unlinkage and mutual authentication during the communications between the vehicles and the road-side infrastructure units. In this paper, we propose an improved privacy-preserving mutual authentication protocol f...

Keywords: WAVE Cognitive radio networks Safety applications Spectrum management a b s t r a c t The Wireless Access in Vehicular Environments (WAVE) protocol stack has been recently defined to enable vehicular communication on the Dedicated Short Range Communication (DSRC) frequencies. Some recent studies have demonstrated that the WAVE technology might not provide sufficient spectrum for relia...

The development of computer system and network enabled us to provide various applications in the field of information technology. As the exchange of information increases, the protection of the privacy becomes essential factor in the information sharing. Among the technology of the information security, this study attempted to seek a solution on the subject of secure data collection in distribu...