Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25944
Title: Efficient pinpointing of misplaced tags in large RFID systems
Authors: Bu, K
Xiao, B 
Xiao, Q
Chen, S
Keywords: Industrial economics
Inventory management
Performance evaluation
Protocols
Radiofrequency identification
Issue Date: 2011
Publisher: IEEE
Source: 2011 8th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), 27-30 June 2011, Salt Lake City, UT, p. 287-295 How to cite?
Abstract: The Radio-Frequency Identification (RFID) technology has stimulated many innovative applications. Misplaced-tag pinpointing (MTP) is important to RFID applications in production economics because optimal inventory placement can significantly increase profit. Previous research from the database perspective needs to process a large amount of data which is time-consuming to collect (and energy-consuming if active tags are used). How to efficiently address the MTP problem from the protocol design perspective however has not been investigated. In this paper, we propose a series of protocols toward efficient MTP solution in large RFID systems. The proposed protocols detect misplaced tags based on reader positions instead of tag positions to guarantee the efficiency and scalability as system scale grows, because the number of readers is much smaller than that of tags. Considering applications to employ more and more popular active tags, we further propose a solution requiring responses from only partial tags in favor of energy saving. We analyze the optimal performances of proposed protocols to demonstrate their efficiency potential and conduct extensive simulation experiments to evaluate their performance under various scenarios. The results show that the proposed protocols can significantly increase the time efficiency and the energy efficiency by over 70% on average when compared with the state of the art.
URI: http://hdl.handle.net/10397/25944
ISBN: 978-1-4577-0094-1
ISSN: 2155-5486
DOI: 10.1109/SAHCN.2011.5984909
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