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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 :

ÇѱÛÁ¦¸ñ(Korean Title) Ãʱâ ÇÁ·¹ÀÓ Å©±â ¿¹ÃøÀ» ÅëÇÑ DFSA(Dynamic Frame Slotted Aloha) ¾Ë°í¸®Áò ¼º´É °³¼±
¿µ¹®Á¦¸ñ(English Title) Performance Improvements of DFSA(Dynamic Frame Slotted Aloha) Algorithm through Estimation of Intial frame Size
ÀúÀÚ(Author) ÀÌ°­¿ø   À̹®Çü   ÀÌÇö±³   ÀÓ°æÈñ   Kang-Won Lee   Moon-Hyung Lee   Hyun-Kyo Lee   Kyoung-Hee Lim  
¿ø¹®¼ö·Ïó(Citation) VOL 21 NO. 08 PP. 1517 ~ 1530 (2017. 08)
Çѱ۳»¿ë
(Korean Abstract)
±âÁ¸ÀÇ Ãæµ¹ ¹æÁö ¾Ë°í¸®ÁòµéÀº Çö ÇÁ·¹ÀÓ³»ÀÇ Ãæµ¹ Á¤º¸¸¦ Åä´ë·Î ´ÙÀ½ ÇÁ·¹ÀÓ³»ÀÇ ½½·Ô ¼ö¸¦ °áÁ¤Çϱ⠶§¹®¿¡ Ãæµ¹ Á¤º¸°¡ ÀüÇô ¾ø´Â Ãʱâ ÇÁ·¹ÀÓÀÇ ½½·Ô ¼ö´Â °áÁ¤ÇÒ ¼ö°¡ ¾ø´Ù. µû¶ó¼­ ÀÌµé ¾Ë°í¸®ÁòµéÀº Ãʱ⠽½·Ô ¼ö¸¦ ÀÓÀÇÀÇ »ó¼ö·Î ¼³Á¤ÇØ »ç¿ëÇÏ°í Àִµ¥ ¾Ë°í¸®ÁòÀÇ È¿À²ÀÌ Ãʱ⠽½·Ô ¼ö¿¡ ¹Î°¨ÇÏ´Ù´Â ¿¬±¸°á°ú¸¦ °¨¾ÈÇϸé ÀÌ´Â °³¼± ÇÒ Çʿ伺ÀÌ ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â À̸¦ À§ÇØ È¿À²ÀûÀÎ Ãʱâ ÇÁ·¹ÀÓ ½½·Ô ¼ö °áÁ¤À» À§ÇÑ µÎ °¡Áö ¹æ¹ýÀ» Á¦¾ÈÇÏ¿´´Âµ¥ À̸¦ ÅëÇØ Dynamic Frame Slotted Aloha AlgorithmÀÇ ¼º´É °³¼±À» ½ÃµµÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ Á¦¾ÈÇÑ ¾Ë°í¸®ÁòÀÇ ¼º´ÉÀ» °ËÁõÇϱâ À§ÇÏ¿© 2.4 GHz RFID ½Ã½ºÅÛÀ» »ç¿ëÇÏ¿´À¸¸ç ¼º´É Ãøµµ·Î »ç¿ëÇÑ Throughput°ú Delay TimeÀ» À¯µµÇϱâÀ§ÇØ ½Ã¹Ä·¹ÀÌ¼Ç ¸ðÇüÀ» Java·Î ±¸ÃàÇÏ¿´´Ù. º» ¿¬±¸¿¡¼­ Á¦¾ÈÇÑ ¹æ¹ýÀ» ÅëÇØ ThroughputÀº 9.6%, Delay TimeÀº 9.8% °³¼±µÊÀ» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Traditional anti-collision algorithms determine slot size of initial frame based on the information of number of collision slots , idle slots, and success slots. Since there is no information about collision at the beginning of tag information collection, traditional anti-collision algorithms can not determine the initial frame size. Considering that performance of anti-collision algorithm is very sensitive to initial slot size traditional anti-collision algorithms need some improvements. In this study two methods are proposed to determine slot size of initial frame efficiently, through which we can improve the performance of dynamic frame slotted aloha algorithm. To verify the performance of proposed algorithms, 2.4GHz RFID system is used. Throughput and delay time are derived through simulation, which is developed using JAVA. We have seen that proposed algorithm improves throughput by 9.6% and delay time by 9.8%.
Å°¿öµå(Keyword) Ãæµ¹ ¹æÁö ¾Ë°í¸®Áò   »ç¹°ÀÎÅͳݠ  Schoute   NEDFSA   Anti-collision algorithm   IoT   Shoute   NEDFSA  
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