Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)
ÇѱÛÁ¦¸ñ(Korean Title) |
5G ³×Æ®¿öÅ©¿¡¼ÀÇ ¹«¼±ÀÚ¿ø ÇÒ´ç: ½Å°æ¸ÁÀ» ÀÌ¿ëÇÑ Á¢±Ù¹ý |
¿µ¹®Á¦¸ñ(English Title) |
Radio Resource Allocation in 5G New Radio: A Neural Networks Approach |
ÀúÀÚ(Author) |
¸¶µð¾È ¾Ë¼¾À§
±è±âÅÂ
È«Ãæ¼±
Madyan Alsenwi
Kitae Kim
Choong Seon Hong
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¿ø¹®¼ö·Ïó(Citation) |
VOL 46 NO. 09 PP. 0961 ~ 0967 (2019. 09) |
Çѱ۳»¿ë (Korean Abstract) |
¸®¼Ò½º ºí·Ï(RB)Àº 5G ³×Æ®¿öÅ©¿¡¼ »ç¿ëÀÚ Àåºñ(UE)¿¡ ÇÒ´ç µÉ ¼ö ÀÖ´Â ÃÖ¼Ò ÁÖÆļö-½Ã°£´ÜÀ§À̸ç ÇÑ Å¸ÀÓ ½½·Ô µ¿¾ÈÀÇ OFDM(Orthogonal Frequency Division Multiplexing)ÀÇ ºÎ¹Ý¼ÛÆÄ (subcarrier)·Î ±¸¼ºµÈ ä³ÎÀÌ´Ù. ÀÌ·¯ÇÑ ¸®¼Ò½º ºí·ÏÀº 15kHz¿¡¼ 480kHz±îÁö ´Ù¾çÇÑ Å©±â·Î ³ª´· ¼ö ÀÖ´Ù. º» ³í¹®¿¡¼´Â 5G ³×Æ®¿öÅ©¿¡¼ »ç¿ëÀÚ Àåºñ¿¡ ¸®¼Ò½º ºí·Ï ÇÒ´ç ¹®Á¦¸¦ GPF(Generalized Proportional Fair) ½ºÄÉÁÙ¸µ °ø½ÄÈ ÇÑ ÈÄ 2Â÷¿ø Hopfield ½Å°æ¸Á(2D-HNN)À¸·Î ¸ðµ¨¸µÇÏ¿© ÇØ°áÇÏ´Â »õ·Î¿î ¹æ¹ýÀ» Á¦½ÃÇÑ´Ù. ¸¶Áö¸·À¸·Î 2D-HNNÀÇ ¿¡³ÊÁö ÇÔ¼ö ¿¬±¸¸¦ ÅëÇÏ¿© ¹®Á¦¸¦ ÇØ°áÇÑ´Ù. ½Ã¹Ä·¹À̼ǰá°ú Á¦¾ÈµÈ ±â¹ýÀÇ È¿À²¼ºÀ» È®ÀÎÇÒ ¼ö ÀÖ¾úÀ¸¸ç »ç¿ëÀÚ Àåºñµé°£ 90% ÀÌ»óÀÇ °øÆò¼º(Fairness)¸¦ º¸ÀåÇÔÀ» È®ÀÎÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
The minimum frequency-time unit that can be allocated to User Equipments (UEs) in the fifth generation (5G) cellular networks is a Resource Block (RB). A RB is a channel composed of a set of OFDM subcarriers for a given time slot duration. 5G New Radio (NR) allows for a large number of block shapes ranging from 15 kHz to 480 kHz. In this paper, we address the problem of RBs allocation to UEs. The RBs are allocated at the beginning of each time slot based on the channel state of each UE. The problem is formulated based on the Generalized Proportional Fair (GPF) scheduling. Then, we model the problem as a 2-Dimension Hopfield Neural Networks (2D-HNN). Finally, in an attempt to solve the problem, the energy function of 2D-HNN is investigated. Simulation results show the efficiency of the proposed approach.
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Å°¿öµå(Keyword) |
5¼¼´ë Åë½Å
ÀÚ¿øÇÒ´ç
½Å°æ¸Á
proportional fair
5G new radio
resource allocation
neural networks
generalized proportional fair
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