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Privacy Protected Spatial Query Processing for Advanced Location Based Services

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Abstract

Due to the popularity of mobile devices (e.g., cell phones, PDAs, etc.), location-based services have become more and more prevalent in recent years. However, users have to reveal their location information to access location-based services with existing service infrastructures. It is possible that adversaries could collect the location information, which in turn invades user’s privacy. There are existing solutions for query processing on spatial networks and mobile user privacy protection in Euclidean space. However there is no solution for solving queries on spatial networks with privacy protection. Therefore, we aim to provide network distance spatial query solutions which can preserve user privacy by utilizing K-anonymity mechanisms. In this paper, we propose an effective location cloaking mechanism based on spatial networks and two novel query algorithms, PSNN and PSRQ, for answering nearest neighbor queries and range queries on spatial networks without revealing private information of the query initiator. We demonstrate the appeal of our technique using extensive simulation results.

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Authors and Affiliations

  1. Department of Computer Science and Software Engineering, Auburn University, 345 W. Magnolia Ave, Shelby Center 3101, Auburn, AL, 36849, USA

    Wei-Shinn Ku

  2. Department of Electrical & Computer Engineering, Binghamton University, Binghamton, NY, 13902, USA

    Yu Chen

  3. Department of Computer Science, National University of Singapore, Singapore, 117590, Singapore

    Roger Zimmermann

Authors
  1. Wei-Shinn Ku
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  2. Yu Chen
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  3. Roger Zimmermann
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Correspondence to Wei-Shinn Ku.

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Ku, WS., Chen, Y. & Zimmermann, R. Privacy Protected Spatial Query Processing for Advanced Location Based Services. Wireless Pers Commun 51, 53–65 (2009). https://doi.org/10.1007/s11277-008-9608-9

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  • DOI: https://doi.org/10.1007/s11277-008-9608-9

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