NDLI: Rapid tag collision resolution using enhanced continuous wave absence detection

Content Provider	IEEE Xplore Digital Library
Author	Alma'aitah, A.Y. Hassanein, H.S. Ibnkahla, M.
Copyright Year	2013
Description	Author affiliation: Electr. & Comput. Eng. Dept., Queen's Univ., Kingston, ON, Canada (Ibnkahla, M.) \|\| Sch. of Comput., Queen's Univ., Kingston, ON, Canada (Alma'aitah, A.Y.; Hassanein, H.S.)
Abstract	In RFID tag identification, tag-to-tag collisions pose a challenging problem to protocol designers. Currently the modulation silencing mechanism (MSM) has been proposed to overcome the time and power wasted on collision slots during tag identification. In MSM, the time of collision slots is reduced by the assistance of the continuous wave absence detection (CWAD) circuit. CWAD allows the tags to sense the reader's RF signal cutoff and terminate data modulation. In this paper, we propose an enhanced CWAD (ECWAD) design to reduce the time required for RF cutoff detection. The ECWAD circuit mitigates the tag-to-tag collision effects on both identification efficiency and throughput. ECWAD is a fast and low power sensing circuit that allows having shorter collision slots, faster tag identification, and limited voltage drop at the tag. When compared to the existing CWAD design, the proposed design detects the RF signal cutoff by the reader in less than 20% of that in CWAD and reduces the collision slot time by more than 32%.
Starting Page	861
Ending Page	867
File Size	1215594
Page Count	7
File Format	PDF
e-ISBN	9781479905409
DOI	10.1109/LCNW.2013.6758524
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-21
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Capacitors Modulation Threshold voltage Timing Antennas Backscatter
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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