Evaluation framework of location privacy of wireless mobile systems with arbitrary beam pattern

Ford Long Wong, Min Lin, Shishir Nagaraja, Ian Wassell, Frank Stajano

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

6 Citations (Scopus)

Abstract

Position localization of transmitters can be carried out by an adversary owning a network of pervasive receivers, which can pinpoint the victim mobile nodes' locations with high temporal and spatial accuracy, such that pseudonym changing and higher-layer obfuscation are insufficient to protect their location privacy. Our contribution is to consider covert beam patterns, generated using multiple antennas to do adaptive beamforming, and so reducing radio signature. We architect such a privacy-enhancing system, give an informal security analysis, and develop an evaluation framework to analyze its location privacy. We performed simulations using wireless LAN parameters, and found that signal-to-noise-ratios for successful direction-finding are more stringent than those required for mere communications. We composed an end-to-end integrated radio and mobility simulation, and compared location privacy performance of omnidirectional versus adaptive beamforming antennas. Our proposal is shown to perform better. In addition, our evaluation framework is flexible and extensible.

Original languageEnglish
Title of host publicationProceedings - CNSR 2007
Subtitle of host publicationFifth Annual Conference on Communication Networks and Services Research
PublisherIEEE
Pages157-165
Number of pages9
ISBN (Print)076952835X, 9780769528359
DOIs
Publication statusPublished - 4 Sep 2007
EventCNSR 2007: 5th Annual Conference on Communication Networks and Services Research - Fredericton, NB, Canada
Duration: 14 May 200717 May 2007

Conference

ConferenceCNSR 2007: 5th Annual Conference on Communication Networks and Services Research
CountryCanada
CityFredericton, NB
Period14/05/0717/05/07

Keywords

  • antenna radiation patterns
  • adaptive arrays
  • array signal processing
  • mobile radio
  • radio direction-finding
  • radio transmitters
  • wireless LAN
  • communication system security

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