Implementation of an Efficient Slotted CSMA/CA Anti-collision Protocol for Active RFID System 


Vol. 37,  No. 12, pp. 1013-1022, Dec.  2012


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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.

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  Cite this article

[IEEE Style]

J. Joo and S. Chung, "Implementation of an Efficient Slotted CSMA/CA Anti-collision Protocol for Active RFID System," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 12, pp. 1013-1022, 2012. DOI: .

[ACM Style]

Jin-hoon Joo and Sang-hwa Chung. 2012. Implementation of an Efficient Slotted CSMA/CA Anti-collision Protocol for Active RFID System. The Journal of Korean Institute of Communications and Information Sciences, 37, 12, (2012), 1013-1022. DOI: .

[KICS Style]

Jin-hoon Joo and Sang-hwa Chung, "Implementation of an Efficient Slotted CSMA/CA Anti-collision Protocol for Active RFID System," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 12, pp. 1013-1022, 12. 2012.