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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
À̵¿¼º ±â¹ÝÀÇ ¿§Áö ij½Ì ¹× »ç¿ëÀÚ ¿¬°á ¾Ë°í¸®Áò ¿¬±¸ |
¿µ¹®Á¦¸ñ(English Title) |
A Study on Mobility-Aware Edge Caching and User Association Algorithm |
ÀúÀÚ(Author) |
ÀÌÅÂÀ±
À̼ö°æ
TaeYoon Lee
SuKyoung Lee
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 12 NO. 02 PP. 0047 ~ 0052 (2023. 02) |
Çѱ۳»¿ë (Korean Abstract) |
ÃÖ±Ù ½º¸¶Æ® µð¹ÙÀ̽º ¹× ½ºÆ®¸®¹Ö ¼ºñ½ºÀÇ ¼ö¿ä Áõ°¡¿¡ µû¸¥ ³×Æ®¿öÅ© Æ®·¡ÇÈÀ» È¿°úÀûÀ¸·Î °ü¸®Çϱâ À§ÇÑ ¹æ¹ýÀ¸·Î Mobile Edge Computing (MEC)±â¼úÀÌ ÁÖ¸ñ¹Þ°í ÀÖ´Ù. MEC´Â Base Station(BS)°ú °°Àº ³×Æ®¿öÅ© ¿§Áö¿¡ ij½Ã¸¦ ¼³Ä¡ÇÔÀ¸·Î½á »ç¿ëÀÚ¿¡°Ô º¸´Ù °¡±î¿î °÷¿¡¼ ¼ºñ½º¸¦ Á¦°øÇϹǷΠ³·Àº Áö¿¬½Ã°£À» Á¦°øÇÏ°í, ³×Æ®¿öÅ© ºÎÇϸ¦ °¨¼Ò½Ãų ¼ö ÀÖ´Ù. ¶ÇÇÑ, ¿§Áö ³×Æ®¿öÅ©¿¡¼ »ç¿ëÀÚ´Â °¡Àå °¡±î¿î BS¿Í ¿¬°áµÇ´Â °Íº¸´Ù ¿äûµÈ ÄÜÅÙÃ÷°¡ ij½ÌµÇ¾î ÀÖ´Â BS¿Í ¿¬°áÇÏ´Â °ÍÀÌ ¼ºñ½º Áö¿¬½Ã°£ °¨¼Ò¿¡ À¯¸®ÇÏ´Ù. µû¶ó¼ º» ³í¹®¿¡¼´Â ij½Ã ÀûÁß·ü Çâ»óÀ» À§ÇÑ À̵¿¼º ±â¹Ý ij½Ì ¹× »ç¿ëÀÚ ¿¬°á(user association)¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. Á¦¾È ¾Ë°í¸®ÁòÀº ü·ù½Ã°£°ú ÄÜÅÙÃ÷ ¿äû À¯»çµµ¸¦ Åä´ë·Î »ç¿ëÀÚ ¿¬°áÀ» °áÁ¤ÇÏ°í ÄÜÅÙÃ÷¸¦ ij½ÌÇÑ´Ù. ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ ±âÁ¸ ¿¬±¸ ´ëºñ Á¦¾È ¾Ë°í¸®ÁòÀÇ Çâ»óµÈ ij½Ã ÀûÁß·ü°ú °¨¼ÒµÈ Áö¿¬½Ã°£À» È®ÀÎÇÑ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
Mobile Edge Computing(MEC) is considered as a promising technology to effectively support the explosively increasing traffic demands. It can provide low-latency services and reduce network traffic by caching contents at the edge of networks such as Base Station(BS). Although users may associate with the nearest BSs, it is more beneficial to associate users to the BS where the requested content is cached to reduce content download latency. Therefore, in this paper, we propose a mobility-aware joint caching and user association algorithm to imporve the cache hit ratio. In particular, the proposed algorithm performs caching and user association based on sojourn time and content preferences. Simulation results show that the proposed scheme improves the performance in terms of cache hit ratio and latency as compared with existing schemes. |
Å°¿öµå(Keyword) |
¿§Áö ij½Ì
»ç¿ëÀÚ ¿¬°á
»ç¿ëÀÚ À̵¿¼º
Áö¿¬½Ã°£
Edge Caching
User Association
User Mobility
Latency
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