Earticle

초록

영어

Recently, with the dramatic popular of geo-social networks and location based services (LBS), more and more mobile users are willing to enjoy the proximity services, which is a friend-alarm when the buddies happen to be in proximity. However, the services provider (SP) and some compromised buddies could try to steal the user’s exact location information. Hence, location privacy preserving is still a challenge question in proximity based services. Unfortunately, existing methods only consider Euclidean distance to calculate neighbors, which would bring great deviation for distance measurement in the actual terrain. To my knowledge, this article is the first time extending to the 3D surface and proposes a novel technique for the privacy-preserving proximity services. The technique utilizes simplicial triangulation decomposition on 3D surface, and the user's location is generalized with a triangular area space, then a more precise proximity distance measurement method based on the triangle fractal is proposed. Next, we design a privacy-preserving proximity query protocol, which provide complete privacy with respect to the SP and the buddies. Final, the experiments shows that our methods have practicality in the services quantity and privacy.

목차

Abstract
 1. Introduction
 2. Related Work
 3. System Model
  3.1. Proximity Services
  3.2. Privacy Requirements
  3.3. Privacy Threats
 4. Background
  4.1. The Simplex Segmentation Method
  4.2. Approximate Geodesic Distance on a Triangle Mesh
  4.3. Commutative Encryption
 5. System Design
  5.1. Spatial Generalization
  5.2. Measurement of the Proximity Range
  5.3. Privacy-preserving Proximity Query Protocol
 6. Experimental Evaluation
 7. Conclusion
 Acknowledgements
 References

키워드

저자

• Min Li [ School of Computer Science & Engineering, University of Electronic and Technology of China, Chengdu, China, College of Computer Science, Sichuan Normal University, Chengdu, China ] Corresponding author
• Ruijin Wang [ School of Computer Science & Engineering, University of Electronic and Technology of China, Chengdu, China ]
• Zhiguang Qin [ School of Computer Science & Engineering, University of Electronic and Technology of China, Chengdu, China ]
• Cong Wang [ School of Computer Science & Engineering, University of Electronic and Technology of China, Chengdu, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605