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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö > Á¤º¸Ã³¸®ÇÐȸ ³í¹®Áö ÄÄÇ»ÅÍ ¹× Åë½Å½Ã½ºÅÛ

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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) »çÀ̹ö¹°¸®½Ã½ºÅÛ ¼­ºñ½º Ç°Áú Çâ»óÀ» À§ÇÑ µ¥µå¶óÀÎ ÀÎÁö ¶ó¿ìÆÃ
¿µ¹®Á¦¸ñ(English Title) Deadline-Aware Routing: Quality of Service Enhancement in Cyber-Physical Systems
ÀúÀÚ(Author) ¼Õ¼ºÈ­   À庴ÈÆ   ¹Ú°æÁØ   Sunghwa Son   Byeong-Hoon Jang   Kyung-Joon Park  
¿ø¹®¼ö·Ïó(Citation) VOL 07 NO. 09 PP. 0227 ~ 0234 (2018. 09)
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(Korean Abstract)
½Ç½Ã°£ ½Ã½ºÅÛ, ³×Æ®¿öÅ© Á¦¾î ½Ã½ºÅÛ, »çÀ̹ö¹°¸®½Ã½ºÅÛ°ú °°ÀÌ Áö¿¬¿¡ ¹Î°¨ÇÑ ½Ã½ºÅÛÀÇ ¼­ºñ½º Ç°ÁúÀ» À§ÇØ Á¾´Ü °£ Áö¿¬ µ¥µå¶óÀÎÀ» º¸ÀåÇÏ´Â °ÍÀº Áß¿äÇÏ´Ù. ´ëºÎºÐÀÇ ¶ó¿ìÆà ¾Ë°í¸®ÁòÀº ÀϹÝÀûÀ¸·Î Á¾´Ü °£ Æò±Õ Áö¿¬À» ¼º´É ¸ÞÆ®¸¯À¸·Î »ç¿ëÇÏ°í Æò±Õ ¼º´É Çâ»óÀ» À§ÇØ À̸¦ ÃÖ¼ÒÈ­ÇÏ´Â ¶ó¿ìÆà °æ·Î¸¦ ¼±ÅÃÇÑ´Ù. ÇÏÁö¸¸ ÃÖ¼Ò Æò±Õ Áö¿¬Àº Æò±Õ°ª¸¸À» ³ªÅ¸³»±â ¶§¹®¿¡ ¿¹ÃøÇÒ ¼ö ¾ø´Â ¹«¼± ä³ÎÀÇ Æ¯¼ºÀ» ¹Ý¿µÇϱ⿡ ºÒÃæºÐÇÑ ¶ó¿ìÆà ¸ÞÆ®¸¯ÀÌ´Ù. º» ³í¹®¿¡¼­´Â Æò±Õ Áö¿¬º¸´Ù´Â Æò±Õ ºÐÆ÷¸¦ °í·ÁÇÏ¿© »çÀ̹ö¹°¸®½Ã½ºÅÛÀÇ ÁÖ¾îÁø µ¥µå¶óÀÎ ³»¿¡ ÆÐŶÀÌ µµÂøÇÒ È®·üÀ» ÃÖ´ëÈ­ÇÏ´Â µ¥µå¶óÀÎ ÀÎÁö ¶ó¿ìÆà ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÑ ¶ó¿ìÆà ¾Ë°í¸®ÁòÀº ´ÜÀÏ È© Áö¿¬ÀÌ Áö¼ö ºÐÆ÷¸¦ µû¸¥´Ù´Â °¡Á¤ ÇÏ¿¡ ÁÖ¾îÁø ³×Æ®¿öÅ© ÅäÆú·ÎÁö¿¡¼­ Á¾´Ü °£ Áö¿¬ ºÐÆ÷¸¦ ±¸¼ºÇÑ´Ù. ½Ã¹Ä·¹ÀÌ¼Ç °á°ú´Â Á¦¾ÈÇÑ ¶ó¿ìÆà ¾Ë°í¸®ÁòÀÌ µ¥µå¶óÀÎÀ» ¸¸Á·ÇÒ È®·üÀ» ÃÖ´ëÈ­ ÇÏ´Â ¶ó¿ìÆà °æ·Î¸¦ Á¦°øÇÏ¿© »çÀ̹ö¹°¸®½Ã½ºÅÛÀÇ ¼­ºñ½º Ç°Áú°ú ³×Æ®¿öÅ© Á¦¾î ¼º´ÉÀ» Çâ»ó½Ãų ¼ö ÀÖÀ½À» º¸¿©ÁØ´Ù.
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(English Abstract)
Guaranteeing the end-to-end delay deadline is an important issue for quality of service (QoS) of delay sensitive systems, such as real-time system, networked control system (NCS), and cyber-physical system (CPS). Most routing algorithms typically use the mean end-to-end delay as a performance metric and select a routing path that minimizes it to improve average performance. However, minimum mean delay is an insufficient routing metric to reflect the characteristics of the unpredictable wireless channel condition because it only represents average value. In this paper, we proposes a deadline-aware routing algorithm that maximizes the probability of packet arrival within a pre-specified deadline for CPS by considering the delay distribution rather than the mean delay. The proposed routing algorithm constructs the end-to-end delay distribution in a given network topology under the assumption of the single hop delay follows an exponential distribution. The simulation results show that the proposed routing algorithm can enhance QoS and improve networked control performance in CPS by providing a routing path which maximizes the probability of meeting the deadline.
Å°¿öµå(Keyword) µ¥µå¶óÀÎ ÀÎÁö ¶ó¿ìÆà  ¼­ºñ½º Ç°Áú   »çÀ̹ö¹°¸®½Ã½ºÅÛ   Deadline-Aware Routing   Quality of Service   Cyber-Physical Systems  
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