NDLI: An enhanced query tree protocol for RFID tag collision resolution with progressive population estimation

Content Provider	IEEE Xplore Digital Library
Author	Xinqing Yan Guiliang Zhu
Copyright Year	2009
Description	Author affiliation: School of Information Engineering, North China University of Water Conservancy and Electric Power, Zhengzhou, 450011, China (Xinqing Yan; Guiliang Zhu)
Abstract	Rapid and reliable resolution of the collisions caused by multiple RFID tags during identification is a key factor for the proliferation application of RFID system. In this paper, an enhanced query tree protocol for memoryless passive RFID tags is proposed, in which the binary identifiers stored in the RFID tags and the binary query strings broadcasted by the RFID reader are mapped to real numbers in the interval [0, 1). During identification, according to the amount of RFID tags already identified and the value which the binary query string adopted by the protocol in the last frame maps to, the overall tag population is estimated, and an optimal binary query string for the protocol to adopt and the reader to broadcast in the next frame is calculated. Evaluation verifies that this protocol outperforms other query tree protocols regarding to the metrics of throughput and time delay.
Starting Page	935
Ending Page	940
File Size	2510246
Page Count	6
File Format	PDF
ISBN	9781424451135
DOI	10.1109/MOBHOC.2009.5337032
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Delay effects Throughput RFID Decoding RFID tags Passive RFID tags Signal resolution progressive estimation query tree protocol Collision resolution Broadcasting Power system reliability Radiofrequency identification
Content Type	Text
Resource Type	Article

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