Leveraging P2P interactions for efficient location privacy in database-driven dynamic spectrum access

Erald Troja, Spiridon Bakiras

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

In the database-driven DSA model, clients learn their geo-graphic location through a GPS device and use this loca-tion to retrieve a list of available channels from a central-ized white-space database. To mitigate the potential privacy threats associated with location-based queries, existing work has proposed the use of private information retrieval (PIR) protocols when querying the database. Nevertheless, PIR protocols are very expensive and may lead to significant costs for highly mobile clients. In this paper, we propose a novel method that allows wireless users to collaborate in a peer-to-peer (P2P) manner, in order to share their cached channel availability information that is obtained from previ-ous queries. Our experimental results with a real-life dataset show that our methods reduce the number of PIR queries by 50% to 60%, while incurring low computational and com-munication costs.

Original languageEnglish
Title of host publication22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2014
PublisherAssociation for Computing Machinery
Pages453-456
Number of pages4
Volume04-07-November-2014
ISBN (Electronic)9781450331319
DOIs
Publication statusPublished - 4 Nov 2014
Externally publishedYes
Event22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2014 - Dallas, United States
Duration: 4 Nov 20147 Nov 2014

Other

Other22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2014
CountryUnited States
CityDallas
Period4/11/147/11/14

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Keywords

  • Anonymity
  • Dynamic Spec-trum Access
  • Location Privacy
  • Private Information Retrieval
  • White-Space Database

ASJC Scopus subject areas

  • Earth-Surface Processes
  • Computer Science Applications
  • Modelling and Simulation
  • Computer Graphics and Computer-Aided Design
  • Information Systems

Cite this

Troja, E., & Bakiras, S. (2014). Leveraging P2P interactions for efficient location privacy in database-driven dynamic spectrum access. In 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM SIGSPATIAL GIS 2014 (Vol. 04-07-November-2014, pp. 453-456). Association for Computing Machinery. https://doi.org/10.1145/2666310.2666477