Efficient location privacy for moving clients in database-driven dynamic spectrum access

Erald Troja, Spiridon Bakiras

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

8 Citations (Scopus)

Abstract

Dynamic spectrum access (DSA) is envisioned as a promising framework for addressing the spectrum shortage caused by the rapid growth of connected wireless devices. In contrast to the legacy fixed spectrum allocation policies, DSA allows license-exempt users to access the licensed spectrum bands when not in use by their respective owners. More specifically, in the database-driven DSA model, mobile users issue location-based queries to a white-space database, in order to identify idle channels in their area. To preserve location privacy, existing solutions suggest the use of private information retrieval (PIR) protocols when querying the database. Nevertheless, these methods are not communication efficient and fail to take into account user mobility. In this paper, we address these shortcomings and propose an efficient privacy-preserving protocol based on the Hilbert space filling curve. We provide optimizations for mobile users that require privacy on-the-fly and users that have full a priori knowledge of their trajectory. Through experimentation with two real life datasets, we show that, compared to the current state-of-the-art protocol, our methods reduce the query response time at the mobile clients by a large factor.

Original languageEnglish
Title of host publication24th International Conference on Computer Communications and Networks, ICCCN 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2015-October
ISBN (Electronic)9781479999644
DOIs
Publication statusPublished - 2 Oct 2015
Externally publishedYes
Event24th International Conference on Computer Communications and Networks, ICCCN 2015 - Las Vegas, United States
Duration: 3 Aug 20156 Aug 2015

Other

Other24th International Conference on Computer Communications and Networks, ICCCN 2015
CountryUnited States
CityLas Vegas
Period3/8/156/8/15

Fingerprint

Hilbert spaces
Information retrieval
Trajectories
Communication

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Cite this

Troja, E., & Bakiras, S. (2015). Efficient location privacy for moving clients in database-driven dynamic spectrum access. In 24th International Conference on Computer Communications and Networks, ICCCN 2015 (Vol. 2015-October). [7288403] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCCN.2015.7288403

Efficient location privacy for moving clients in database-driven dynamic spectrum access. / Troja, Erald; Bakiras, Spiridon.

24th International Conference on Computer Communications and Networks, ICCCN 2015. Vol. 2015-October Institute of Electrical and Electronics Engineers Inc., 2015. 7288403.

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

Troja, E & Bakiras, S 2015, Efficient location privacy for moving clients in database-driven dynamic spectrum access. in 24th International Conference on Computer Communications and Networks, ICCCN 2015. vol. 2015-October, 7288403, Institute of Electrical and Electronics Engineers Inc., 24th International Conference on Computer Communications and Networks, ICCCN 2015, Las Vegas, United States, 3/8/15. https://doi.org/10.1109/ICCCN.2015.7288403
Troja E, Bakiras S. Efficient location privacy for moving clients in database-driven dynamic spectrum access. In 24th International Conference on Computer Communications and Networks, ICCCN 2015. Vol. 2015-October. Institute of Electrical and Electronics Engineers Inc. 2015. 7288403 https://doi.org/10.1109/ICCCN.2015.7288403
Troja, Erald ; Bakiras, Spiridon. / Efficient location privacy for moving clients in database-driven dynamic spectrum access. 24th International Conference on Computer Communications and Networks, ICCCN 2015. Vol. 2015-October Institute of Electrical and Electronics Engineers Inc., 2015.
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