ID Prediction Algorithm for Tag Collision Arbitration in RFID System

Authors:
Hyun Jun Yeo;Yong Hwan Kim;Hwa Young Lim;Yong Soo Park;Kwang Seon Ahn
Affiliations:
Kyungpook National University;Kyungpook National University;Kyungpook National University;Kyungpook National University;Kyungpook National University
Venue:
RTCSA '07 Proceedings of the 13th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
Year:
2007

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Cited 1

A hybrid tag number estimation scheme for aloha based anti-collision algorithm in RFID networks

ICACT'10 Proceedings of the 12th international conference on Advanced communication technology

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Abstract

In radio frequency identification (RFID) system, the reader needs the anti-collision algorithm for fast identifying all of the tags in the interrogation zone. This paper proposes the tree-based ID prediction algorithm (IPA) to arbitrate the tag collision. For IPA, the count-bits, which represents the number of bit "1's in the ID, are added to the left position of the tag ID. The reader predicts correctly ID by using count-bits, the number of collided bits and the information of the identified bits. By using IPA, the reader can identify more than one tag at once. IPA can reduce the number of the requests transmitted from the reader, thus it shortens the time of identifying all of the tags in the interrogation zone.