Cooperative GPS signal authentication from unreliable peers

Liang Heng, Daniel Chou, Grace Xingxin Gao

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

Abstract

Secure, reliable position and time information is indispensable for many civil GPS applications such as guiding aircraft, tracking freight, synchronizing power grids and cellular networks, and time-stamping financial transactions. This paper introduces a signal authentication architecture based on a network of cooperative receivers. A receiver in the network correlates its received military P(Y) signal with those received by other receivers (hereinafter referred to as crosscheck receivers) so as to detect spoofing attacks. This paper describes a candidate structures to implement this architecture. Our theoretical analysis shows that the signal-to-noise-ratio significantly affects pair-wise check performance, and the final authentication performance improves exponentially with increasing number of cross-check receivers. We have conducted two field experiments to evaluate pair-wise check performance in different spatial conditions (urban canyon and open space) and different transport modes (static and moving). The experiments shows that pair-wise check performance is sensitive to spatial conditions, but insensitive to transport modes.

Original languageEnglish (US)
Title of host publication27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
PublisherInstitute of Navigation
Pages2801-2809
Number of pages9
ISBN (Electronic)9781634399913
StatePublished - 2014
Event27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014 - Tampa, United States
Duration: Sep 8 2014Sep 12 2014

Publication series

Name27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
Volume4

Other

Other27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
Country/TerritoryUnited States
CityTampa
Period9/8/149/12/14

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Aerospace Engineering
  • Computer Science Applications
  • Software

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