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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö A

Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö A

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ÅëÇÕ RFID ¹Ìµé¿þ¾îÀÇ ÀÀ´ä½Ã°£ °³¼±À» À§ÇÑ È¿°úÀûÀΠij½¬ ±¸Á¶ ¼³°è
¿µ¹®Á¦¸ñ(English Title) An Efficient Cache Mechanism for Improving Response Times in Integrated RFID Middleware
ÀúÀÚ(Author) ±èÁ¤±æ   ÀÌÁØȯ   ¹Ú°æ¶û   ±è½Å´ö   Cheong-Ghil Kim   Jun-Hwan Lee   Kyung Lang Park   Shin-Dug Kim  
¿ø¹®¼ö·Ïó(Citation) VOL 15-A NO. 01 PP. 0017 ~ 0026 (2008. 02)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â WSN(wireless sensor networks)°ú RFID(radio frequency identification) ½Ã½ºÅÛÀ» ÅëÇÕÇÏ¿© ÀÌ¿ëÇÒ ¼ö ÀÖ´Â ÅëÇÕ RFID ¹Ìµé¿þ¾î¿¡¼­ÀÇ È¿°úÀûÀΠij½³ ±â¹ýÀ» Á¦½ÃÇÑ´Ù. ÅëÇÕ RFID ¹Ìµé¿þ¾î°¡ ¿î¿µµÇ´Â ȯ°æÀº ¿¬°áµÈ RFID¸®´õ·ÎºÎÅÍ ´ë±Ô¸ðÀÇ µ¥ÀÌÅÍ°¡ ÀԷµǰí, ´Ù¼öÀÇ ¹«¼± ¼¾¼­·ÎºÎÅÍ ²÷ÀÓ¾øÀÌ µ¥ÀÌÅÍ°¡ ÀԷµǴ »óȲÀ» °¡Á¤ÇÏ°í ÀÖÀ¸¸ç ¶ÇÇÑ Æ¯Á¤ ¸ñÀûÀ» À§ÇØ °ú°Å¿¡ ¼¾¼­·ÎºÎÅÍ ÀÔ·ÂµÇ¾î ºÐ»ê ÀúÀåµÇ¾î ÀÖ´Â È÷½ºÅ丮 µ¥ÀÌÅ͵µ È°¿ëµÉ ¼ö ÀÖÀ½À» °¡Á¤ÇÏ°í ÀÖ´Ù. µû¶ó¼­ ij½³ ±â´ÉÀ» ±¸ºñÇÑ Æ¯Á¤ ¹Ìµé¿þ¾î ·¹À̾¼­ ¼¾¼­ ³ëµå·ÎºÎÅÍ ¼ö½ÅµÇ´Â ¿¬¼Ó µ¥ÀÌÅÍ¿Í ºÐ»ê ÀúÀåµÇ¾î ÀÖ´Â È÷½ºÅ丮 µ¥ÀÌÅÍ¿¡ ´ëÇÑ ½Å¼ÓÇÑ ÁúÀÇ ¹× ÀÀ´äÀ» À§ÇÑ È¿À²Àû µ¥ÀÌÅÍ Ã³¸®°¡ Àý½ÇÈ÷ ¿ä±¸µÈ´Ù. À̸¦ À§ÇÏ¿© º» ³í¹®¿¡¼­ Á¦¾ÈµÇ´Â ij½³ ±â¹ýÀº ±âÁ¸ÀÇ Ä³½³ ±â¹ý ±â¹ÝÀ¸·Î ÅëÇÕ RFID ¹Ìµé¿þ¾î¿¡ ƯȭÇÏ¿© µ¥ÀÌÅÍ Ã³¸®ÀÇ È¿À²À» ³ôÀ̱â À§ÇÏ¿© µÎ°¡Áö ¹æ¹ýÀ» Á¦½ÃÇÏ°í ÀÖÀ¸¸ç, À̴ ó¸® µ¥ÀÌÅÍÀÇ À¯Çü¿¡ µû¶ó DSC(data stream cache)¿Í HDC(history data cache) ·Î ±¸ºÐµÈ´Ù. Á¦¾ÈµÈ ij½³ ±â¹ýÀº ´Ù¾çÇÑ ÆĶó¹ÌÅ͸¦ ÀÌ¿ëÇÑ ½ÇÇèÀ» ÅëÇÏ¿© ½Å¼ÓÇÑ ÁúÀÇ ¹× ÀÀ´äÀÌ ÀÌ·ç¾îÁüÀ» º¸¿©ÁÖ°í ÀÖ´Ù.
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(English Abstract)
This paper proposes an efficient caching mechanism appropriate for the integrated RFID middleware which can integrate wireless sensor networks (WSNs) and RFID (radio frequency identification) systems. The operating environment of the integrated RFID middleware is expected to face the situations of a significant amount of data reading from RFID readers, constant stream data input from large numbers of autonomous sensor nodes, and queries from various applications to history data sensed before and stored in distributed storages. Consequently, an efficient middleware layer equipping with caching mechanism is inevitably necessary for low latency of request-response while processing both data stream from sensor networks and history data from distributed database. For this purpose, the proposed caching mechanism includes two optimization methods to reduce the overhead of data processing in RFID middleware based on the classical cache implementation polices. One is data stream cache (DSC) and the other is history data cache (HDC), according to the structure of data request. We conduct a number of simulation experiments under different parameters and the results show that the proposed caching mechanism contributes considerably to fast request-response times.
Å°¿öµå(Keyword) RFID   WSN   ¹Ìµé¿þ¾î   ij½³ ±â¹ý   ÀÀ´ä½Ã°£   ¿¬¼Ó µ¥ÀÌÅÍ   RFID   WSN   Middleware   Cache   Response Time   Data Stream  
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