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Privacy-friendly spatial crowdsourcing in vehicular networks

  • Cheng HuangEmail author
  • Rongxing Lu
  • Hui Zhu
Research Paper

Abstract

With the evolution of conventional VANETs (Vehicle Ad-hoc Networks) into the IoV (Internet of Vehicles), vehicle-based spatial crowdsourcing has become a potential solution for crowdsourcing applications. In vehicular networks, a spatial-temporal task/question can be outsourced (i.e., task/question relating to a particular location and in a specific time period) to some suitable smart vehicles (also known as workers) and then these workers can help solve the task/question. However, an inevitable barrier to the widespread deployment of spatial crowdsourcing applications in vehicular networks is the concern of privacy. Hence, We propose a novel privacy-friendly spatial crowdsourcing scheme. Unlike the existing schemes, the proposed scheme considers the privacy issue from a new perspective according that the spatial-temporal tasks can be linked and analyzed to break the location privacy of workers. Specifically, to address the challenge, three privacy requirements (i.e. anonymity, untraceability, and unlinkability) are defined and the proposed scheme combines an efficient anonymous technique with a new composite privacy metric to protect against attackers. Detailed privacy analyses show that the proposed scheme is privacy-friendly. In addition, performance evaluations via extensive simulations are also conducted, and the results demonstrate the efficiency and effectiveness of the proposed scheme.

Keywords

spatial crowdsourcing vehicular networks location privacy IoV (Internet of Vehicles) privacy metric 

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Copyright information

© Posts & Telecom Press and Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  1. 1.Department of Electrical and Computer EngineeringUniversity of WaterlooWaterlooCanada
  2. 2.Faculty of Computer ScienceUniversity of New BrunswickFrederictonCanada
  3. 3.School of Cyber EngineeringXidian UniversityXi’anChina

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