Forward Predicting and Backward Verifying Tags Number Estimation in RFID System

Abstract:

Tag collision happens when multiple tags are energized simultaneously, reflect their respective signals back to the reader at the same time, and the reader is unable to differentiate these signals. This problem causes decrease of the RFID efficiency especially in the tag-intensive RFID system. The dynamic frame slotted aloha (DFSA) algorithm is the most appropriate solution for this problem, which is based on an accurate tags number estimate method. A novel forward predicting and backward verifying adaptive precise tags number estimation algorithm is proposed in this paper. Experiment results show that it is more effective than others.

• Periodical: Applied Mechanics and Materials (Volumes 321-324)
• Pages: 2902-2905
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.321-324.2902
• Online since: June 2013
• Authors: Chang Bin Li, Hua Li, Peng Wei Wang
• Keywords: Adaptive Tags Number Estimation, Dynamic Frame Slotted Aloha Algorithm, Radio Frequency Identification (RFID)

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