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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
FQTR : RFID ½Ã½ºÅÛÀ» À§ÇÑ »õ·Î¿î ÇÏÀ̺긮µå ÅÂ±× Ãæµ¹ ¹æÁö ÇÁ·ÎÅäÄÝ |
¿µ¹®Á¦¸ñ(English Title) |
FQTR : Novel Hybrid Tag Anti-Collision Protocols |
ÀúÀÚ(Author) |
Á¤½Â¹Î
Á¶Á¤½Ä
±è¼º±Ç
Seungmin Jung
Jungsik Cho
Sungkwon Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 36 NO. 07 PP. 0560 ~ 0570 (2009. 07) |
Çѱ۳»¿ë (Korean Abstract) |
RFID ±â¼úÀº ¹ÙÄڵ带 ´ëüÇÒ ÀÚµ¿ÀÎ½Ä ±â¼ú·Î¼ ÀÎ½Ä ¼Óµµ°¡ ºü¸£°í ºñÁ¢ÃË ¹æ½ÄÀ¸·Î ¿À¿°¿¡ °ÇÑ ÀåÁ¡À» °¡Áö°í ÀÖ´Ù. ±×·¯³ª RFID ±â¼úÀÇ ´ëÁßȸ¦ À§Çؼ´Â ¼±°áµÇ¾î¾ßÇÒ ³Á¦µéÀÌ ÀÖ´Ù. ÀÌ Áß º» ³í¹®¿¡¼´Â ´ÙÁß ÅÂ±× ½Äº° ¹®Á¦¸¦ ´Ù·é´Ù. ´ÙÁß Å±׸¦ ÀνÄÇÏ°í Ãæµ¹À» ¹æÁöÇÏ´Â ¹®Á¦´Â RFID ½Ã½ºÅÛÀÇ ¼º´É¿¡ Á÷Á¢ÀûÀÎ ¿µÇâÀ» ÁØ´Ù. º» ³í¹®¿¡¼´Â ±âÁ¸ÀÇ ¾Ë°í¸®ÁòµéÀ» ºÐ¼®ÇÏ°í °³¼±ÇÏµÈ »õ·Î¿î ÅÂ±× Ãæµ¹ ¹æÁö ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÈ ¾Ë°í¸®ÁòÀº ALOHA ±â¹Ý ¾Ë°í¸®Áò°ú QT ±â¹Ý ¾Ë°í¸®ÁòÀÇ ÇÏÀ̺긮µå ÇüÅ·ΠºÐ¹è¿Í ÀÎ½Ä °úÁ¤¿¡ ÀûÇÕÇÑ Æ¯¼ºµéÀ» È¥ÇÕÇÏ¿© ±¸¼ºÇÏ¿´´Ù. ºÐ¹è °úÁ¤¿¡¼´Â ALOHA ¹æ½ÄÀ» ÀÌ¿ëÇÏ¿© ÀνİúÁ¤¿¡¼ ÇÑ ÇÁ·¹ÀÓ¿¡ ÀνÄÇؾßÇÒ ÅÂ±× ¼ö¸¦ ÁÙ¿´´Ù. ÀÌ´Â Tree ÀÇ ±íÀÌ°¡ ±í¾îÁ® Áö¿¬À» ÀÏÀ¸Å°´Â ¹®Á¦¸¦ ÇØ°áÇÏ¿´´Ù. ÀÎ½Ä °úÁ¤¿¡¼´Â QT ±â¹Ý ¾Ë°í¸®ÁòÀ» ÀÌ¿ëÇÏ¿©, ALOHA ¹æ½Ä¿¡¼ ¸ðµç ű׸¦ ÀνÄÇÏÁö ¸øÇÏ´Â ¹®Á¦¸¦ ÇØ°áÇÏ¿´´Ù. ¶ÇÇÑ, ½ÇÁ¦ RFID ȯ°æÀ» ºÐ¼®ÇÏ¿© ´õ ÁÁÀº ¼º´ÉÀ» º¸À̵µ·Ï ű×ID ÀÇ ¿ª¼øÀ¸·Î ÀνÄÇÏ´Â QTR ¾Ë°í¸®ÁòÀ» Àû¿ëÇÏ¿´´Ù. º» ³í¹®¿¡¼ Á¦¾ÈÇÏ´Â FQTR ¾Ë°í¸®ÁòÀº ½Ã¹Ä·¹ÀÌ¼Ç °á°ú ±âÁ¸ÀÇ ¾Ë°í¸®Áò¿¡ ºñÇØ ¶Ù¾î³ ¼º´ÉÀ» º¸¿©ÁÖ¾ú´Ù. |
¿µ¹®³»¿ë (English Abstract) |
RFID, Radio Frequency Identification, is a technology of automated identification replacing bar-code. RFID technology has advantages that it recognizes fast and it is strong to contamination using wireless communication. However, there are difficult problems that should be solved for popularization of RFID. Among of these, tag anti-collision problem is dealed in this paper.
It affected the performance of RFID system directly. This paper analyzes conventional algorithms and proposes new algorithms of tag anti-collision. The algorithm proposed was composed of appropriate properties to each phase of distribution and recognition as hybrid between ALOHA-based algorithm and QT-based algorithm. At phase of distribution, the number of tags recognizing at a frame was reduced using ALOHA-based algorithm. It addressed the delay problem because of deep depth of tree. At phase of recognition, it solved ALOHA-based chronic problem that couldn't recognize all the tags sometimes. Moreover, QTR algorithm that recognize by reversed tag IDs was adopted for the performance. The FQTR algorithm proposed in this paper showed brilliant performance as compared with convention algorithms by simulation. |
Å°¿öµå(Keyword) |
RFID ½Ã½ºÅÛ
RFID ű×
ÅÂ±× Ãæµ¹ ¹®Á¦
ÅÂ±× Ãæµ¹ ¹æÁö ÇÁ·ÎÅäÄÝ
¾Ë·ÎÇÏ ¾Ë°í¸®Áò
Äõ¸®Æ®¸® ¾Ë°í¸®Áò
RFID system
RFID tag
RFID tag collision problem
Tag anti-collision protocol
ALOHA algorithm
QT algorithm
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