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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document : 9 / 246 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) RFID ½Ã½ºÅÛ¿¡¼­ °í¼Ó ÅÂ±× ½Äº°À» À§ÇÑ STAC/EPS ¾Ë°í¸®Áò
¿µ¹®Á¦¸ñ(English Title) STAC/EPS Algorithm for Fast Tag Identification in RFID System
ÀúÀÚ(Author) ÀÓÀÎÅà  Intaek Lim  
¿ø¹®¼ö·Ïó(Citation) VOL 20 NO. 05 PP. 0931 ~ 0936 (2016. 05)
Çѱ۳»¿ë
(Korean Abstract)
PS ¾Ë°í¸®ÁòÀº ¸®´õÀÇ ¼Û½Å Àü·ÂÀ» Á¡ÁøÀûÀ¸·Î Áõ°¡½ÃÅ°¸é¼­ ¸®´õÀÇ ½Äº° ¿µ¿ª ³»¿¡ Àִ ű׵éÀ» ±×·ìÈ­ ÇÏ¿© ½Äº°ÇÏ´Â ±â¹ýÀÌ´Ù. ÀÌ ±â¹ý¿¡¼­´Â ½ºÄµ °úÁ¤À» ¼öÇàÇÒ ¶§¸¶´Ù °íÁ¤µÈ Å©±âÀÇ ÇÁ·¹ÀÓÀ» »ç¿ëÇÑ´Ù. ÀÌ·Î ÀÎÇÏ¿© PS ¾Ë°í¸®ÁòÀÇ ¼º´ÉÀº ű×ÀÇ ¼ö¿Í ÇÁ·¹ÀÓ Å©±â¿¡ µû¶ó ´Ù¾çÇÏ°Ô ³ªÅ¸³ª´Â ¹®Á¦Á¡ÀÌ ÀÖ´Ù. º» ³í¹®¿¡¼­´Â ¸Å ½ºÄµ¸¶´Ù ű×ÀÇ ¼ö¸¦ ÃßÁ¤ÇÏ¿© ÃÖÀûÀÇ ÇÁ·¹ÀÓ Å©±â¸¦ ÇÒ´çÇÏ´Â EPS ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÏ°í, À̸¦ STAC ÇÁ·ÎÅäÄÝ¿¡ Àû¿ëÇÑ STAC/EPS ¾Ë°í¸®ÁòÀÇ ¼º´ÉÀ» ºÐ¼®ÇÑ´Ù. ¼º´É ºÐ¼®ÀÇ °á°ú, STAC/EPS ¾Ë°í¸®ÁòÀÇ Æò±Õ ½Äº°Áö¿¬Àº STAC ÇÁ·ÎÅäÄÝ¿¡ ºñÇÏ¿© 45% °³¼±µÊÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ Á¦¾ÈÇÑ ¾Ë°í¸®ÁòÀº Àü·Â Áõ°¡ °ª¿¡ °ü°è¾øÀÌ Ç×»ó ÀÏÁ¤ÇÑ ½Äº° Áö¿¬À» ¾òÀ» ¼ö ÀÖ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
The PS algorithm divides the number of tags within the identification range of reader into smaller groups by increasing the transmission power incrementally and identifies them. It limits the number of responding tags by grouping the tags within the identification range of the reader, and thus can reduce the probability of tag collision. Also, in the PS algorithm, the reader takes advantages of the difference of identification ranges. This algorithm uses the fixed frame size at every scan. Therefore, it has problems that the performance can be shown variously according to the number of tags and frame size. In this paper, we propose an EPS algorithm that allocates the optimal frame size by estimating the number of tags at each scan, and apply it into the STAC protocol. The simulation results showed that STAC/EPS algorithm can improve the identification delay about 45% compared with STAC protocol. Also, it provides a stable identification delay regardless of power level increase.

Å°¿öµå(Keyword) RFID   Ãæµ¹ ¹æÁö ¾Ë°í¸®Áò   STAC ÇÁ·ÎÅäÄÝ   PS ¾Ë°í¸®Áò   RFID   Anti-collision algorithm   STAC protocol   PS algorithm  
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