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COIN-GPS: Indoor localization from direct GPS receiving

  • Shahriar Nirjon
  • , Jie Liu
  • , Gerald DeJean
  • , Bodhi Priyantha
  • , Yuzhe Jin
  • , Ted Hart
  • University of Virginia
  • Microsoft USA

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Due to poor signal strength, multipath effects, and limited on-device computation power, common GPS receivers do not work indoors. This work addresses these challenges by using a steerable, high-gain directional antenna as the front-end of a GPS receiver along with a robust signal processing step and a novel location estimation technique to achieve direct GPS-based indoor localization. By leveraging the computing power of the cloud, we accommodate longer signals for acquisition, and remove the requirement of decoding timestamps or ephemeris data from GPS signals. We have tested our system in 31 randomly chosen spots inside five single-story, indoor environments such as stores, warehouses and shopping centers. Our experiments show that the system is capable of obtaining location fixes from 20 of these spots with a median error of less than 10 m, where all normal GPS receivers fail.

Original languageEnglish
Title of host publicationMobiSys 2014 - Proceedings of the 12th Annual International Conference on Mobile Systems, Applications, and Services
PublisherAssociation for Computing Machinery
Pages301-314
Number of pages14
ISBN (Print)9781450327930
DOIs
StatePublished - 2 Jun 2014
Externally publishedYes
Event12th Annual International Conference on Mobile Systems, Applications, and Services, MobiSys 2014 - Bretton Woods, NH, United States
Duration: 16 Jun 201419 Jun 2014

Publication series

NameMobiSys 2014 - Proceedings of the 12th Annual International Conference on Mobile Systems, Applications, and Services

Conference

Conference12th Annual International Conference on Mobile Systems, Applications, and Services, MobiSys 2014
Country/TerritoryUnited States
CityBretton Woods, NH
Period16/06/1419/06/14

Keywords

  • co-gps
  • coin-gps
  • indoor gps
  • instant gps

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