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Implementation of an Efficient Slotted CSMA/CA Anti-collision Protocol for Active RFID System
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 Title & Authors
Implementation of an Efficient Slotted CSMA/CA Anti-collision Protocol for Active RFID System
Joo, Jin-Hoon; Chung, Sang-Hwa;
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 Abstract
Tag collection is one of the major concerns in radio frequency identification(RFID) system. All tags in RFID reader's transmission range send response message back to the reader in response to collection request message on the given rf channel. When multiple tags respond simultaneously, tag-collision may occur. Tag-collision problem is one of the most important issues in active RFID performance. To mitigate this problem, frame slotted ALOHA(FSA) anti-collision protocol is widely used in active RFID system. Several studies show that the maximum system efficiency of FSA anti-collision protocol is 36.8%. In this paper, we propose an efficient slotted CSMA/CA protocol to improve tag collection performance. We compare our protocol to the FSA anti-collision protocol. For the experiment, an 433MHz active RFID system is implemented, which is composed of an RFID reader and multiple tags. We evaluated the tag collection performance using one RFID reader and 40 tags in the real test bed. The experimental result shows that proposed protocol improves the tag collection time, round and collision probability by 18%, 37.4% and 77.8%, respectively.
 Keywords
Active RFID;Slotted CSMA/CA;ISO/IEC 18000-7 Mode2;Tag collection;
 Language
Korean
 Cited by
1.
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한국통신학회논문지, 2014. vol.39B. 9, pp.598-605 crossref(new window)
2.
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한국정보과학회논문지:정보통신, 2014. vol.41. 2, pp.76-85
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능동형 RFID 시스템의 성능 향상을 위한 연구,김지태;김진성;이강원;

한국통신학회논문지, 2015. vol.40. 5, pp.871-885 crossref(new window)
4.
시뮬레이션을 이용한 능동형 RFID 시스템의 소비 전력 예측,이문형;이현교;임경희;이강원;

한국정보통신학회논문지, 2016. vol.20. 8, pp.1569-1580 crossref(new window)
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