An Adaptive Likelihood Distribution Algorithm for the Localization of Passive RFID Tags

Yuuki OTA; Toshihiro HORI; Taiki ONISHI; Tomotaka WADA; Kouichi MUTSUURA; Hiromi OKADA

doi:10.1093/ietfec/e91-a.7.1666

Special Section on Multi-dimensional Mobile Information Networks

An Adaptive Likelihood Distribution Algorithm for the Localization of Passive RFID Tags

Yuuki OTA, Toshihiro HORI, Taiki ONISHI, Tomotaka WADA, Kouichi MUTSUURA, Hiromi OKADA

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Keywords: RFID reader, RFID tag, localization, likelihood distribution, estimated position error

JOURNAL RESTRICTED ACCESS

2008 Volume E91.A Issue 7 Pages 1666-1675

DOI https://doi.org/10.1093/ietfec/e91-a.7.1666

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Abstract

The RFID (Radio Frequency IDentification) tag technology is expected as a tool of localization. By the localization of RFID tags, a mobile robot which installs in RFID readers can recognize surrounding environments. In addition, RFID tags can be applied to a navigation system for walkers. In this paper, we propose an adaptive likelihood distribution scheme for the localization of RFID tags. This method adjusts the likelihood distribution depending on the signal intensity from RFID tags. We carry out the performance evaluation of estimated position error by both computer simulations and implemental experiments. We show that the proposed system is more effective than the conventional system.

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