Exploiting space-time correlations in an rfid tag field for localization and tracking

Victor K.Y. Wu, Nitin H. Vaidya

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


We consider exploiting space-time correlations of passive RFID tags for localization and tracking. Consider tags with storage memory distributed densely in space. Users move through the field, scanning the tags. Subsets of these tags are space-time correlated with respect to the user's trajectory. For example, if two adjacent tags are scanned close together in time, they are highly correlated.We can represent this correlation value as a weighted virtual arrow pointing from the earlier scanned tag to the later scanned tag. A user continuously calculates these arrows, and stores them locally in the tags, forming a digital path, for localization and tracking of herself by other users. We specify several of these correlation functions and evaluate them experimentally. We provide statistical measures of performance, as well as visualizations of the resulting arrow fields created by users.

Original languageEnglish (US)
Title of host publication2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781424456383
StatePublished - 2010
Externally publishedYes
Event53rd IEEE Global Communications Conference, GLOBECOM 2010 - Miami, FL, United States
Duration: Dec 6 2010Dec 10 2010

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference


Other53rd IEEE Global Communications Conference, GLOBECOM 2010
Country/TerritoryUnited States
CityMiami, FL

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Exploiting space-time correlations in an rfid tag field for localization and tracking'. Together they form a unique fingerprint.

Cite this