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ÇѱÛÁ¦¸ñ(Korean Title) |
RFID µ¥ÀÌÅÍÀÇ ÀÏ°ü¼ºÀ» À§ÇÑ Àç¼öÇà Æ®·£Àè¼Ç ¸ðµ¨ |
¿µ¹®Á¦¸ñ(English Title) |
A Reprocessing Transaction Model for Consistency of RFID Data |
ÀúÀÚ(Author) |
·ù¿ì¼®
È«ºÀÈñ
±ÇÁØÈ£
Wooseok Ryu
Bonghee Hong
Joonho Kwon
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¿ø¹®¼ö·Ïó(Citation) |
VOL 39 NO. 05 PP. 0296 ~ 0307 (2012. 10) |
Çѱ۳»¿ë (Korean Abstract) |
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¿µ¹®³»¿ë (English Abstract) |
RFID data are stored in the memory of RFID tag for recording/retrieving detailed information of tagged objects. Tag operations are registered in the RFID middleware to access RFID data, and can be executed when the corresponding tag is identified by the corresponding RFID reader. However, volatility and uncertainty of RF communication interferes complete execution of the tag operations. Communication errors, such as message loss or tag¡¯s disappearance from the RF-field of the reader, cause partial writes or the indeterminate state of RFID data. As a result, RFID data remain inconsistent. The idea of this paper is to model tag operations as RFID transaction and provide consistency of RFID data in point of transaction processing. To do this, this paper first defines RFID transaction and discusses unique characteristics of RFID transaction compared from other transactions. This paper also proposes a reprocessing transaction model to ensure commit of incomplete transactions. The proposed model creates a reprocessing transaction for an incomplete transaction and resumes execution of the transaction when the corresponding tag is re-observed by any reader. This paper also proposes a continuous-query based concurrency control mechanism to provide consistency of RFID data during the reprocessing. Experimental study shows that the proposed model increases the number of successful executions of RFID transactions as well as preserves consistency of RFID data.
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Å°¿öµå(Keyword) |
Àç¼öÇà Æ®·£Àè¼Ç
RFID Æ®·£Àè¼Ç
ÀÏ°ü¼º Á¦¾î
ÅÂ±× ¿¬»ê
Æ®·£Àè¼Ç ¸ðµ¨
Reprocessing Transaction
RFID Transaction
Consistency Control
Tag Operation
Transaction Model
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