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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Á¤º¸°úÇÐȸ ÄÄÇ»ÆÃÀÇ ½ÇÁ¦ ³í¹®Áö (KIISE Transactions on Computing Practices)

Current Result Document : 9 / 46

ÇѱÛÁ¦¸ñ(Korean Title) QoE¸¦ °í·ÁÇÑ Unlicensed ½ºÆåÆ®·³¿¡¼­ÀÇ LTE ¹èÄ¡ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) Coexistence of LTE-U and Wi-Fi System Considering the User's QoE
ÀúÀÚ(Author) ¾Æ´©ÆÊ Äí¸¶¸£ ¹ÙÀ̶ó±â   ¾Æ½Ã½º Å»·è´õ   ±èµµÇö   È«Ãæ¼±   Anupam Kumar Bairagi   Ashis Talukder   Do Hyeon Kim   Choong Seon Hong   ¾Æ´©ÆÊ Äí¸¶¸£ ¹ÙÀ̶ó±â   ¾Æ½Ã½º Å»·è´õ   ±èµµÇö   È«Ãæ¼±  
¿ø¹®¼ö·Ïó(Citation) VOL 24 NO. 11 PP. 0575 ~ 0581 (2018. 11)
Çѱ۳»¿ë
(Korean Abstract)
¹«¼± ³×Æ®¿öÅ© Æ®·¡ÇÈÀÇ ±âÇϱ޼öÀûÀÎ Áõ°¡´Â ÇÑÆíÀ¸·Î´Â ±âȸÀÌÁö¸¸, ¶Ç ´Ù¸¥ ÇÑÆíÀ¸·Î´Â ¹«¼± ³×Æ®¿öÅ©ÀÇ º´¸ñ Çö»óÀ» ³ªÅ¸³½´Ù. Unlicensed ½ºÆåÆ®·³ÀÇ LTE (Long-Term Evolution)Àº Á¦ÇÑµÈ license ½ºÆåÆ®·³À¸·Î ¹«¼± ³×Æ®¿öÅ©ÀÇ º´¸ñ Çö»óÀ» ÇØ°áÇÏ·ÁÇÏ´Â ³×Æ®¿öÅ© ¿î¿µÀÚ¿¡°Ô ÁÁÀº ´ë¾ÈÀÌ µÉ ¼ö ÀÖ´Ù. ÇÏÁö¸¸ º» ±â¼úÀ» Àû¿ëÇÒ ¶§, Wi-Fi¿Í °°Àº Unlicensed ½ºÆåÆ®·³ ¹× ±âÁ¸ LTE ½Ã½ºÅÛ°úÀÇ °øÁ¸ ¹®Á¦¿Í ´õºÒ¾î ÀÚ¿øÇÒ´ç ¹®Á¦¸¦ °í·ÁÇØ¾ß ÇÑ´Ù. ¶ÇÇÑ ´ëºÎºÐÀÇ °ü·Ã¿¬±¸´Â ÀÚ¿øÇÒ´çÀ» À§ÇØ »ç¿ëÀÚÀÇ QoS ¿ä±¸»çÇ×À» °í·ÁÇÏÁö¸¸ ÇÑ°èÁ¡À» º¸¿©ÁÖ°í ÀÖ´Ù. ÀÌ¿¡ º» ³í¹®¿¡¼­´Â »ç¿ëÀÚÀÇ QoE (Quality of Experience)¸¦ °í·ÁÇÑ LTE-U¿Í Wi-Fi ½Ã½ºÅÛ °£ÀÇ °øÁ¸ ¸ÞÄ¿´ÏÁòÀ» Á¦¾ÈÇÑ´Ù. ¾Æ¿ï·¯ º» ³í¹®¿¡¼­ ÇØ°áÇÏ°íÀÚÇÏ´Â ÃÖÀûÈ­ ¹®Á¦¸¦ °ø½ÄÈ­ÇÏ°í, µÎ °¡Áö ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇØ Nash Bargaining °ÔÀÓ°ú Bankruptcy °ÔÀÓÀ» »ç¿ëÇÑ´Ù. ½Ã¹Ä·¹ÀÌ¼Ç °á°ú´Â LTE »ç¿ëÀÚ¿Í Wi-Fi »ç¿ëÀÚÀÇ °üÁ¡¿¡¼­ Á¦¾ÈµÈ ¹æ¹ýÀÇ È¿À²¼ºÀ» º¸¿©ÁØ´Ù.
¿µ¹®³»¿ë
(English Abstract)
The exponential growth of wireless traffic is an opportunity on one side and bottleneck on the other for the wireless industries. Long-Term Evolution (LTE) in unlicensed spectrum can be a good alternative for the cellular network operators to clutch this opportunity owing to limited licensed spectra. Limitation in licensed spectra causes co-existence issue with other technologies in unlicensed spectra like Wi-Fi and resources allocation issue to the existing LTE system. Moreover, most of the works consider QoS requirements of the users for allocating resources, which could not meet user's requirement. Thus, we propose a co-existence technique between LTE-U and Wi-Fi system considering the quality of experience (QoE) of the users. We have formulated an optimization problem for the existing problem. To solve co-existence and resource allocation issues, we have employed the Nash bargaining game and Bankruptcy game, respectively. Simulation results revealed the effectiveness of the proposed method over other methods in case of LTE users and also for Wi-Fi users.
Å°¿öµå(Keyword) ºñ¸éÇã´ë¿ª LTE   ü°¨Ç°Áú   °øÁ¸   ³»½¬ Çù»ó °ÔÀÓ   ÆÄ»ê °ÔÀÓ   LTE-U   Quality of experience (QoE)   Co-existence   Nash bargaining game   Bankruptcy game   ºñ¸éÇã´ë¿ª LTE   ü°¨Ç°Áú   °øÁ¸   ³»½¬ Çù»ó °ÔÀÓ   ÆÄ»ê °ÔÀÓ   LTE-U   Quality of experience (QoE)   Co-existence   Nash bargaining game   Bankruptcy game  
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