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ÀÌÀü°Ç
ÇѱÛÁ¦¸ñ(Korean Title)
¹«¼± ¼¾¼ ³×Æ®¿öÅ©¿¡¼ ºñÀÜƾ ¿À·ù¸¦ Çã¿ëÇϴ Ŭ·° µ¿±âÈ ±â¹ý
¿µ¹®Á¦¸ñ(English Title)
A Byzantine Fault-tolerant Clock Synchronization Scheme in Wireless Sensor Networks
ÀúÀÚ(Author)
ÀÓÇü±Ù
³²¿µÁø
¹éÀå¿î
°í¼®¿µ
¼´ëÈ
Hyunggeun Lim
Young Jin Nam
Jang Woon Baek
Seok Young Ko
Daewha Seo
¿ø¹®¼ö·Ïó(Citation)
VOL 14 NO. 05 PP. 0487 ~ 0491 (2008. 07)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼´Â ¹«¼± ¼¾¼ ³×Æ®¿öÅ©¿¡¼ Ŭ·° µ¿±âÈ ½Ã ¾ÇÀÇÀûÀÎ ³ëµåÀÇ Å¬·° µ¿±âÈ ¹æÇØ °ø°Ý¿¡ ´ëóÇϱâ À§ÇÑ ºñÀÜƾ ¿À·ù °¨³» Ŭ·° µ¿±âÈ ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾È ±â¹ýÀº Ŭ·° µ¿±âȸ¦ ¿ä±¸ÇÏ´Â ³ëµå°¡ m°³ÀÇ ¾ÇÀÇÀûÀÎ ³ëµå¿¡ ´ëóÇϱâ À§ÇØ ºÎ¸ð ³ëµå»Ó¸¸ ¾Æ´Ï¶ó ÇüÁ¦ ³ëµå·ÎºÎÅÍ 3m+1°³ÀÇ Å¬·° µ¿±âÈ ¸Þ½ÃÁö¸¦ ¼ö½ÅÇÏ¿© Ŭ·° µ¿±âȸ¦ ÁøÇàÇÑ´Ù. ½Ã¹Ä·¹ÀÌÅ͸¦ ÀÌ¿ëÇÑ ¼º´É Æò°¡¸¦ ÅëÇÏ¿©, Á¦¾È ±â¹ýÀº ±âÁ¸ Ŭ·° µ¿±âÈ ±â¹ý¿¡ ºñÇÏ¿© ¾ÇÀÇÀûÀÎ ³ëµåÀÇ Å¬·° µ¿±âÈ ¹æÇØ °ø°Ý ½Ã µ¿±â Á¤È®µµ Ãø¸é¿¡¼ ÃÖ´ë 7¹è Çâ»óµÈ ¼º´ÉÀ» º¸¿©ÁÖ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
This paper proposes the Byzantine fault- tolerant clock synchronization scheme for wireless sensor networks to cope with the clock synchronization disturbance attack of malicious nodes. In the proposed scheme, a node which is requiring clock synchronization receives 3m 1 clock synchronization messages not only from its parent nodes but also from its sibling nodes in order to tolerate malicious attacks even if up to m malicious nodes exist among them. The results show that the proposed scheme is 7 times more resilient to the clock synchronization disturbance attack of malicious nodes than existing schemes in terms of synchronization accuracy.
Å°¿öµå(Keyword)
¹«¼± ¼¾¼ ³×Æ®¿öÅ©
Ŭ·° µ¿±âÈ
ºñÀÜƾ ¿À·ù
Wireless Sensor Networks
Clock Synchronization
Byzantine Fault
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