NDLI: An Enhanced Query Tree (EQT) Protocol for Memoryless Tag Anti-collision in RFID Systems

Content Provider	IEEE Xplore Digital Library
Author	Ching-Hsien Hsu Chia-Hao Yu Yi-Pin Huang Kyung-Jae Ha
Copyright Year	2008
Description	Author affiliation: Dept. of Comput. Sci. & Inf. Eng., Chung Hua Univ., Taiwan (Ching-Hsien Hsu; Yi-Pin Huang) \|\| Dept. of Comput. Sci. & Eng., Kyungnam Univ., South Korea (Kyung-Jae Ha) \|\| Inst. of Eng. & Sci., Chung Hua Univ., Hsinchu, Taiwan (Chia-Hao Yu)
Abstract	One of the challenges in designing modern RFID systems is that when more than one tag exists in an RFID environment, it may occurs collisions so that the whole system becomes inefficient and increases the time for identifying RFID Tags. In order to simultaneously recognize several tags within a reader interrogation zone, an anti-collision algorithm should be applied. In this paper, we present an Enhanced Query Tree (EQT) protocol for memoryless tag anti-collision in RFID networks. The EQT is an enhanced technique based on the query tree protocol. The main advantage of EQT is that it can dynamically adjust length of prefix code to avoid unnecessary inquiry and reduce collisions. To evaluate performance of the proposed techniques, we have implemented the EQT along with the query tree protocol. The experimental results show that the EQT outperforms other tree based protocols in terms of the identification efficiency and its overhead, including number of collisions and time cost. Particularly, the EQT performs very well in neutral RFID systems.
Starting Page	427
Ending Page	432
File Size	144951
Page Count	6
File Format	PDF
ISBN	9780769534312
DOI	10.1109/FGCN.2008.224
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer science Temperature sensors Wireless sensor networks Protocols Large-scale systems Performance analysis Application software RFID tags Delay Radiofrequency identification
Content Type	Text
Resource Type	Article

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