• Àüü
  • ÀüÀÚ/Àü±â
  • Åë½Å
  • ÄÄÇ»ÅÍ
´Ý±â

»çÀÌÆ®¸Ê

Loading..

Please wait....

±¹³» ³í¹®Áö

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 : 8 / 33 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ´Éµ¿ÅÂ±× ±â¹Ý À§Ä¡ÀÎ½Ä ½Ã½ºÅÛÀÇ ¼º´É ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Performance Analysis of Location-Aware System based on Active Tags
ÀúÀÚ(Author) ¼Ò¼±¼·   Àº¼º¹è   ±èÁøõ   Sun-Sup So   Seong-Bae Eun   Jin-Chun Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 11 NO. 02 PP. 0422 ~ 0429 (2007. 02)
Çѱ۳»¿ë
(Korean Abstract)
À§Ä¡ ÀÎ½Ä ±â´ÉÀº U-city¸¦ ±¸¼ºÇÏ´Â ÇÙ½É ¿ä¼Ò·Î¼­ U-city ±â¹Ý ¾ÆÆÄÆ® ´ÜÁö µî¿¡¼­ »ó¿ëÈ­¸¦ ¸ñÀûÀ¸·Î È°¹ßÈ÷ ¿¬±¸, °³¹ßµÇ°í ÀÖ´Ù. ´Éµ¿Å±׸¦ ºÎÂøÇÑ °ÅÁÖÀÚ³ª ÀÚµ¿Â÷°¡ ´ÜÁö ³»¸¦ À̵¿ÇÒ ¶§ ű״ ÁÖ±âÀûÀ¸·Î ÀÚ½ÅÀÇ ½Äº°ÀÚ¸¦ ¹æ¼ÛÇÏ°í À̸¦ ¹ÞÀº ¼ö½Å±âµéÀº RSSI¸¦ ÀÌ¿ëÇÏ¿© ű×ÀÇ À§Ä¡¸¦ °è»êÇÑ´Ù. ¹®Á¦´Â ¼öõ¼¼´ë ±Ô¸ðÀÇ ¾ÆÆÄÆ® ´ÜÁöÀÇ °æ¿ì µ¿½Ã »ç¿ëµÇ´Â ű׼ö°¡ ¼ö ¸¸°³¿¡ À̸£¸ç ¹èÅ͸® ±³Ã¼ ¾øÀÌ 1³â ÀÌ»ó »ç¿ëµÉ ¼ö ÀÖ¾î¾ß ÇϹǷΠÀúÀü·Â ¼Ò¸ð°¡ ¸Å¿ì Áß¿äÇÏ´Ù´Â °ÍÀÌ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ¹®Á¦Á¡À» °í·ÁÇÑ U-cityÀÇ 1) À§Ä¡ ÀÎ½Ä ½Ã½ºÅÛÀÇ ±¸¼ºÀ» Á¦¾ÈÇÏ°í, 2) ´Éµ¿ ÅÂ±× ¹æ½ÄÀ¸·Î ±¸ÇöÇÒ ¶§ ±â¼úÀû À̽´¸¦ Á¦½ÃÇϸç, 3) ƯÈ÷, ¼ö¸¸°³ÀÇ Å±׵éÀÌ µ¿ÀÛÇÒ ¶§ÀÇ ¼º´ÉÀ» ¼öÇÐÀûÀ¸·Î ¸ðµ¨¸µÇÏ°í ½ÇÁ¦ ½ÇÇèÀ» ÅëÇØ ºñ±³ ºÐ¼®ÇÏ¿´´Ù. À̸¦ ÅëÇÏ¿© ´Éµ¿ÅÂ±× ½Ã½ºÅÛ¿¡¼­ ¹ß»ýÇÏ´Â Ã浹Ȯ·üÀÇ ÀÌ·ÐÀû ÃÖÀú°ªÀ» ±¸ÇÏ°í ÇöÀå Àû¿ë½Ã ÀûÁ¤ ¼öÁØÀÇ Å±×ÀÇ °¹¼ö¸¦ Á¦½ÃÇÏ¿´´Ù. ¿¬±¸°á°ú´Â ½ÇÁ¦ U-city À§Ä¡ÀÎ½Ä ½Ã½ºÅÛÀÇ »ó¼¼ ¼³°è¿¡ È°¿ëµÉ ¼ö ÀÖ´Ù.
¿µ¹®³»¿ë
(English Abstract)
Location awareness is one of the key functionalities to build an U-city. Recently, many of works of the location-aware systems are emerging to commercially apply to on-going large-scale apartment complex based on U-city. As dwellers or cars being attached with active tags are moving in the U-city complex, the active tags periodically broadcast their own identifiers and receivers fixed along the street or in building use those information to calculate location of them. There are several issues to be considered for such an environment. The first is that the number of active tags operating in the same region are large as much as tens of thousands, and the second is that the active tags should be alive without change of batteries more than a year, hence low power consumption is very important. In this paper we propose i) a new architecture for location-aware system considering such issues, ii) technical issues to implement it using active tags, and iii) a mathematical analytic model to investigate overall performance and verify it by comparing with actual experimental results. Through the analysis we can show the theoretical boundary of the lowest packet loss rate and the maximum number of tags with acceptable performance for the systems based on active tags. The results can be applied to practical design of location-based systems of U-City projects.
Å°¿öµå(Keyword) À§Ä¡ÀνĠ  ´Éµ¿Å±נ  IEEE 802.15.4   RSSI   Birthday Paradox  
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå