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A dynamic framed slotted ALOHA anti-collision algorithm based on tag-grouping for RFID systems

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4 Author(s)
Yang Qing ; College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China ; Li Jian-cheng ; Wang Hong-yi ; Shen Rong-jun

A new dynamic frame slotted ALOHA algorithm used in Radio Frequency Identification (RFID) systems is presented in this paper. An effective tag-grouping method is proposed in the algorithm. Theoretical analysis shows that the tag-grouping method can disperse tags quickly and evenly. Based on tag grouping, a reader in RFID system can identify tags group by group. The simulation results show that the algorithm can maintain the efficiency near the theoretical maximum of the FSA algorithm, and the efficiency of the algorithm is higher than other typical DFSA algorithms.

Published in:

Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on

Date of Conference:

Oct. 29 2012-Nov. 1 2012