Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
Current Result Document : 2 / 2
ÇѱÛÁ¦¸ñ(Korean Title) |
AP-QoS ±â¹Ý Wi-Fi ½½¶óÀ̽ÌÀÇ ½Ç½Ã°£ ½Ã½ºÅÛ Àû¿ëÀÇ ÇÑ°è ºÐ¼® |
¿µ¹®Á¦¸ñ(English Title) |
Analysis of Limits in Applying AP-QoS-based Wi-Fi Slicing for Real-Time Systems |
ÀúÀÚ(Author) |
±èÁøÇö
ÃÖÇö¿µ
±è°Áø
Jin Hyun Kim
Hyonyoung Choi
Gangjin Kim
ÃÖÀ±µµ
¹ÝÅ¿ø
±è¼¼ÈÆ
Yundo Choi
Tae-Won Ban
Se-Hoon Kim
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¿ø¹®¼ö·Ïó(Citation) |
VOL 48 NO. 06 PP. 0723 ~ 0734 (2021. 06) |
Çѱ۳»¿ë (Korean Abstract) |
³×Æ®¿öÅ© ½½¶óÀ̽ÌÀº ¾ÖÇø®ÄÉÀÌ¼Ç ¼ºñ½º ȤÀº »ç¿ëÀÚÀÇ Á¾·ù¿¡ µû¶ó Â÷º°ÈµÈ ³×Æ®¿öÅ© ¼ºñ½º Ç°ÁúÀ» º¸ÀåÇÏ´Â ±â¼úÀÌ´Ù. IEEE 802.11¿¡ ±â¹ÝÇÑ Wi-Fi´Â °¡Àå º¸ÆíÀûÀ¸·Î »ç¿ëµÇ´Â ±Ù°Å¸® ¹«¼± Åë½ÅÀÌ¸ç ±× »ç¿ëÀÚ ¿ª½Ã Çظ¶´Ù ´Ã¾î³ª°í ÀÖ´Ù. ÃÖ±Ù¿¡´Â ÀÇ·á±â±â¿Í °°Àº °í¾ÈÀü¼º IoT ±â±âÀÇ Wi-Fi»ç¿ëÀÌ Á¡Â÷ ´Ã¾î³ª°í ÀÖ°í, ±â¾÷¿¡¼µµ »ç¿ëÀÚ ¼ºñ½º µî±Þ¿¡ µû¸¥ Â÷º°ÈµÈ Wi-Fi ¼ºñ½º¸¦ ºñÁî´Ï½º¿¡ È°¿ëÇϱâ À§ÇØ Wi-Fi¸¦ À§ÇÑ ³×Æ®¿öÅ© ½½¶óÀÌ½Ì ±â¼úÀ» ¿ä±¸ÇÏ°í ÀÖ´Ù. º» ³í¹®¿¡¼´Â ½Ã°£Àû °áÁ¤¼ºÀ» ¿ä±¸ÇÏ´Â ÇÏµå ½Ç½Ã°£ ½Ã½ºÅÛÀ» À§ÇØ AP-QoS ±â¹ÝÀÇ ³×Æ®¿öÅ© ½½¶óÀÌ½Ì ±¸ÇöÀÇ ÇÑ°è¿Í ¹®Á¦Á¡À» ºÐ¼®ÇÑ´Ù. º» ³í¹®¿¡¼´Â QoS¸¦ Á¦°øÇÏ´Â IEEE 802.11eÀÇ Enhanced Distributed Coordination Access(EDCA, Çâ»óµÈ ºÐ»ê ä³Î Á¢±Ù)ÀÇ ÃÖ¾ÇÀÇ °æ¿ì¸¦ ºÐ¼®ÇÏ´Â ÇÁ·¹ÀÓ¿öÅ©¸¦ Á¤ÀÇÇÏ°í, À̸¦ ÅëÇؼ ½Ã°£Àû °áÁ¤¼ºÀ» ÇØÄ¡´Â EDCAÀÇ ÃÖ¾ÇÀÇ °æ¿ì¸¦ È®ÀÎÇÑ´Ù. ¶ÇÇÑ NS-3¸¦ ÅëÇØ AP-QoS ±â¹ÝÀÇ ³×Æ®¿öÅ© ½½¶óÀ̽º ÇÑ°è¿Í ¹®Á¦Á¡À» ½ÇÁõÇÑ´Ù. ¾Æ¿ï·¯ AP-QoSÀÇ EDCA¸¦ È°¿ëÇÑ ½Ç½Ã°£ ½Ã½ºÅÛÀ» À§ÇÑ Wi-Fi ½ºÆ®¸®¹Ö ±â¼úÀ» º» ³í¹®ÀÌ ÂüÁ¶ÇÏ´Â ±â¼úº¸°í¼¸¦ ÅëÇؼ Á¦°øÇÑ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Network slicing is a new network technology that guarantees the quality of network services according to application services or user¡¯s types. Wi-Fi, IEEE 802.11-based LAN, is the mostly popularly used short-range wireless network and has been continually attracting more and more from users. Recently, the use of Wi-Fi by safety critical IoT devices, such as medical devices, has been drastically increasing. Moreover, enterprises require network slicing of Wi-Fi to introduce the provision of prioritized QoS of Wi-Fi depending on the service type of customer. This paper presents the analysis of the limits and difficulties in applying AP-QoS-based network slicing for hard real-time systems that demand temporal deterministic streaming services. In this paper, we have defined a formal framework to analyze QoS-providing IEEE 802.11e Enhanced Distributed Coordination Access and provide the worst-case streaming scenarios and thereby demonstrated why the temporal determinism of network streaming is broken. In addition, simulation results of AP-QoS-based network slicing using NS-3 are presented to show the limits and difficulties of the network slicing. Moreover, we present Wi-Fi network slicing techniques based on EDCA of AP-QoS for real-time systems through our technical report referenced in this paper
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Å°¿öµå(Keyword) |
½Ç½Ã°£ ½Ã½ºÅÛ
Wi-Fi
³×Æ®¿öÅ© ½½¶óÀ̽Ì
QoS
real-time systems
network slicing
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ÆÄÀÏ÷ºÎ |
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