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dc.contributor.author Choi, Jae Sung ko
dc.contributor.author Lee, Hyun ko
dc.contributor.author Lee, Sang Ceol ko
dc.contributor.author Lee, Dong Ha ko
dc.date.available 2017-07-11T08:08:30Z -
dc.date.created 2017-05-08 -
dc.date.issued 2011 -
dc.identifier.citation 2011 8th International Conference on Ubiquitous Robots and Ambient Intelligence, URAI 2011, pp.35 - 40 -
dc.identifier.isbn 9780000000000 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/3927 -
dc.description.abstract Location sensing of physical objects is one of critical issues in many applications. Passive UHF Radio Frequency Identification (RFID) technique provides an efficient solution because of its low cost for installation and easy identification of the tagged physical objects. In this paper, we research on the localization problem using passive UHF RFID systems. We discuss theoretical and practical characteristics of a passive UHF RFID system. We propose novel algorithm to minimize the number of ambiguous tag points against a single RSSI value from a target tag and increase accuracy of location estimation in 2D grid space. Because of a single Received Signal Strength Indicator (RSSI) can be related to multiple points in the monitoring area due to signal propagation when we use the RSSI based localization technique. According to the analysis of our experiment results, our proposed approach shows over 50% improvement compared with the conventional k-Nearest Neighbor algorithm in a test frame, and 23.24cm of estimation error with a high granularity for localization of box level items with 4 different positions in the immobile applied application such as a smart shelf. © 2011 IEEE. -
dc.publisher Institute of Electrical and Electronics Engineers Inc. -
dc.title Reducing localization ambiguity of immobile passive UHF RFID tagged physical objects -
dc.type Conference -
dc.identifier.doi 10.1109/URAI.2011.6145928 -
dc.identifier.scopusid 2-s2.0-84863144446 -
dc.type.rims CONF -
dc.contributor.nonIdAuthor Choi, Jae Sung -
dc.identifier.citationStartPage 35 -
dc.identifier.citationEndPage 40 -
dc.identifier.citationTitle 2011 8th International Conference on Ubiquitous Robots and Ambient Intelligence, URAI 2011 -
dc.type.journalArticle Conference Paper -
dc.identifier.conferencecountry US -
dc.identifier.conferencelocation Incheon -
dc.contributor.affiliatedAuthor Lee, Hyun -
dc.contributor.affiliatedAuthor Lee, Sang Ceol -
dc.contributor.affiliatedAuthor Lee, Dong Ha -
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