TY - GEN
T1 - Exploiting space-time correlations in an rfid tag field for localization and tracking
AU - Wu, Victor K.Y.
AU - Vaidya, Nitin H.
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
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U2 - 10.1109/GLOCOM.2010.5684088
DO - 10.1109/GLOCOM.2010.5684088
M3 - Conference contribution
AN - SCOPUS:79551627863
SN - 9781424456383
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 53rd IEEE Global Communications Conference, GLOBECOM 2010
Y2 - 6 December 2010 through 10 December 2010
ER -