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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) °¡»óÈ­µÈ WLAN ȯ°æ¿¡¼­ Æ®·¡ÇÈ º¯È­¸¦ °í·ÁÇÑ SDN ±â¹Ý ´ë¿ªÆø Á¦¾î ±â¹ý
¿µ¹®Á¦¸ñ(English Title) An SDN-based Bandwidth Control Scheme considering Traffic Variation in the Virtualized WLAN Environment
ÀúÀÚ(Author) ¹®Àç¿ø   Á¤»óÈ­   Jaewon Moon   Sanghwa Chung  
¿ø¹®¼ö·Ïó(Citation) VOL 43 NO. 11 PP. 1223 ~ 1232 (2016. 11)
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(Korean Abstract)
°¡»ó ³×Æ®¿öÅ© ±â¼úÀº ´Ù¾çÇÑ ¼­ºñ½ºÀÇ ¿ä±¸Á¶°ÇÀ» ¹Ý¿µÇÑ ³×Æ®¿öÅ©¸¦ Á¦°øÇÒ ¼ö ÀÖ´Ù. ´Ù¾çÇÑ ¼­ºñ½ºÀÇ ¿ä±¸Á¶°ÇÀ» ¹Ý¿µÇϱâ À§ÇØ È¿À²ÀûÀÎ ¸®¼Ò½º ºÐ¹è ±â¼úÀÌ ÇÊ¿äÇÏ´Ù. ±âÁ¸ÀÇ Æ®·¡ÇÈ ´ë¿ªÆø ºÐ¹è ±â¹ýµéÀº ´Ù¿î¸µÅ© Æ®·¡Çȸ¸ Á¦¾îÇϰųª ³×Æ®¿öÅ©ÀÇ Æ®·¡ÇÈ »óȲÀ» °í·ÁÇÏÁö ¾Ê´Â´Ù. ¹«¼± ³×Æ®¿öÅ©¿¡¼­ ´Ù¿î¸µÅ©¿Í ¾÷¸µÅ©´Â °°Àº ÀÚ¿øÀ» °øÀ¯ÇÑ´Ù. ¶ÇÇÑ, ±âÁ¸ÀÇ Æ®·¡ÇÈ ´ë¿ªÆø ºÐ¹è ±â¹ýµéÀº ¸ðµç ½ºÅ×À̼ÇÀÌ Æ÷È­µÈ Æ®·¡ÇÈÀ» ¹ß»ý½ÃŲ´Ù°í °¡Á¤ÇÑ´Ù. ±×·¡¼­ ±âÁ¸ÀÇ Æ®·¡ÇÈ ´ë¿ªÆø ºÐ¹è ±â¹ýµéÀº °¡»ó ¹«¼± ³×Æ®¿öÅ©¿¡¼­ Æ®·¡ÇÈ Á¦¾î¸¦ ÇÒ ¼ö ¾ø´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ¹®Á¦µéÀ» ÇØ°áÇϱâ À§ÇØ Æ®·¡ÇÈ ±â¹Ý ´ë¿ªÆø Á¦¾î±â¹ýÀ» Á¦¾ÈÇÑ´Ù. °¡»ó ³×Æ®¿öÅ©¿¡ SDNÀ» Àû¿ëÇÏ°í °¢ ½ºÅ×À̼ÇÀÇ Æ®·¡ÇÈÀ» ¸ð´ÏÅ͸µÇÏ°í ºñÆ÷È­ Æ®·¡ÇÈÀ» ¹ß»ý½ÃÅ°´Â ½ºÅ×À̼ÇÀ» Ž»öÇÑ´Ù. ¶ÇÇÑ, ¸ð´ÏÅ͸µ Á¤º¸¸¦ ±â¹ÝÀ¸·Î ¾÷¸µÅ©¿Í ´Ù¿î¸µÅ© Æ®·¡ÇÈÀ» µ¿ÀûÀ¸·Î Á¦¾îÇÑ´Ù. ½ÇÁ¦ Å×½ºÆ®º£µå ±¸¼º ÈÄ, ±âÁ¸ÀÇ ±â¹ý°ú ºñ±³ °á°ú, Æ®·¡ÇÈ ´ë¿ªÆø ºÐ¹è ¼º´ÉÀÌ ÃÖ´ë 14% °³¼±µÇ¾ú´Ù.
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(English Abstract)
A virtual network technology can provide a network reflecting the requirements of various services. The virtual network can distribute resources of the physical network to each virtual slice. An efficient resource distribution technique is needed to reflect the requirements of various services. Existing bandwidth distribution techniques can only control downlink traffic without taking traffic conditions on the network into account. Downlink and uplink share the same resources in a wireless network. The existing bandwidth distribution techniques assumed that all stations generate saturated traffic. Therefore, the existing bandwidth distribution technique cannot make traffic isolation in a virtual wireless network. In this paper, we proposed a traffic-based bandwidth control techniques to solve these problems. We applied Software-Defined Networking(SDN) to the virtual wireless network, monitored the traffic at each station, and searched for stations that generated unsaturated
traffic. We also controlled both uplink and downlink traffics dynamically based on monitoring information. Our system can be implemented with legasy 802.11 clients and SDN-enabled APs. After the actual test bed configuration, it was compared to existing techniques. As a result, the distribution performance of the proposed technique was improved by 14% in maximum.
Å°¿öµå(Keyword) °¡»ó ³×Æ®¿öÅ©   ¹«¼±·£   OpenFlow   Software-Defined Networking   SDN   Æ®·¡ÇÈ ´ë¿ªÆø Á¦¾î   virtual network   WLAN   OpenFlow   Software-Defined Networking   SDN   bandwidth control  
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