Abstract
Vehicles with abundant sensors and sophisticated communication capabilities have contributed to the emergency of vehicular crowdsensing systems. Vehicular crowdsensing is becoming a popular paradigm to collect a variety of traffic event-reports in intelligent transportation research. However, event-reports trustworthiness and drivers’ privacy are under the threats of the openness of sensing paradigms. This paper proposes TPSense, a lightweight fog-assisted vehicular crowdsensing framework, which guarantees data trustworthiness and users’ privacy. Firstly, we convert the data trustworthiness evaluation problem into a maximum likelihood estimation one, and solve it through expectation maximization algorithm. Secondly, blind signature technology is employed to generate a pseudonym to replace the vehicle’s real identity for the sake of drivers’ privacy protection. Our framework is assessed through simulations on both synthetic and real-world mobility traces. Results have shown that TPSense outshines existing schemes in event-reports trustworthiness evaluation and the reliability of vehicles.
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Acknowledgements
Foundation item: National Natural Science Foundation of China (61972136, 61772173,61471161); Program for the Innovative Talents of the Higher Education Institutions of Henan Province (19HASTIT027); Open fund of Key Laboratory of Grain Information Processing and Control (under Grant No. KFJJ-2018105), Department of Education Outstanding Youth Scientific Innovation Team Support Foundation under Grant T201410.
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Xu, Z., Yang, W., Xiong, Z. et al. TPSense: A Framework for Event-Reports Trustworthiness Evaluation in Privacy-Preserving Vehicular Crowdsensing Systems. J Sign Process Syst 93, 209–219 (2021). https://doi.org/10.1007/s11265-020-01559-6
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DOI: https://doi.org/10.1007/s11265-020-01559-6