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Identified Slot Scan-based Tag Collection Algorithm for Active RFID Systems  

Yoon, Won-Ju (한국항공우주연구원 발사체연구본부 체계종합팀)
Chung, Sang-Hwa (부산대학교 컴퓨터공학과 임베디드네트워크시스템연구실)
Kwon, Yoon-Geun (부산대학교 컴퓨터공학과 임베디드네트워크시스템연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.5B, 2010 , pp. 753-761 More about this Journal
Abstract
In this paper, we propose a novel tag collection algorithm to improve tag collection performance in active RFID systems. In the proposed algorithm, the reader detects the occurrence of empty slots and collided slots through the identified slot scan process and reduces the time wasted by empty slots and collided slots, resulting in improvement of tag collection performance. To evaluate the performance improvement by the proposed tag collection algorithm via the experiments in a real-world environment, we implemented an active RFID reader and tags. The experimental results with the reader and 60 tags showed that the proposed algorithm could reduce the average tag collection time by 21.7% and improve the average identification throughput by 28.3%, compared with the standard tag collection algorithm in ISO/IEC 18000-7. In addition, the proposed algorithm reduced the average battery consumption on tags by 22.7% in the battery consumption experiment with 20 tags.
Keywords
Active RFID; Slot Scan; Tag Collection; Battery Consumption; ISO/IEC 18000-7;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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