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Performance Evaluation of RTLS Based on Active RFID Power Measurement for Dense Moving Objects

Taekyu KIM, Jin LEE, Seungbeom LEE, Sin-Chong PARK

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Summary :

Tracking a large quantity of moving target tags simultaneously is essential for the localization and guidance of people in welfare facilities like hospitals and sanatoriums for the aged. The locating system using active RFID technology consists of a number of fixed RFID readers and tags carried by the target objects, or senior people. We compare the performances of several determination algorithms which use the power measurement of received signals emitted by the moving active RFID tags. This letter presents a study on the effect of collision in tracking large quantities of objects based on active RFID real time location system (RTLS). Traditional trilateration, fingerprinting, and well-known LANDMARC algorithm are evaluated and compared with varying number of moving tags through the SystemC-based computer simulation. From the simulation, we show the tradeoff relationship between the number of moving tags and estimation accuracy.

Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.4 pp.1422-1425
Publication Date
2009/04/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E92.B.1422
Type of Manuscript
LETTER
Category
Sensing

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