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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ¸ÖƼ Æ÷ÀÎÆ® ½Ã½ºÅÛ¿¡¼­ ½Ã½ºÅÛ ·¹º§ ½Ã¹Ä·¹À̼ǿ¡ ±â¹ÝÀ» µÐ ½ºÆåÆ®·³ È¿À²¼º °ËÁõ
¿µ¹®Á¦¸ñ(English Title) Spectral Efficiency Evaluation of Coordinated Multi-point Systems Based on System Level Simulations
ÀúÀÚ(Author) Á¤¹æö   ½Å¿ø¿ë   ¹ÝÅ¿ø   Bang Chul Jung   Won-Yong Shin   Tae Won Ban  
¿ø¹®¼ö·Ïó(Citation) VOL 15 NO. 10 PP. 2113 ~ 2120 (2011. 10)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â ¼¿ °æ°èÁö¿ª »ç¿ëÀÚÀÇ ½ºÆåÆ®·³ È¿À²¼º Çâ»óÀ» À§ÇÏ¿© 3GPP LTE-A (Long-Term Evolution- Advanced) ½Ã½ºÅÛ¿¡¼­ ³íÀǵǴ ¼¿ °£ Çù·Â Àü¼Û±â¹ý Áß ÇϳªÀÎ CoMP (Coordinated Multi-Point) ½Ã½ºÅÛÀ» ¼Ò°³ÇÏ°í, ¼º´É °ËÁõÀ» À§ÇØ ½Ã½ºÅÛ ·¹º§ ½Ã¹Ä·¹ÀÌÅ͸¦ °³¹ßÇÑ´Ù. ¼¿ °£ Çù·Â Àü¼Û ½Ã ½Ã½ºÅÛÀÇ ¼º´É °³¼± Á¤µµ¸¦ È®ÀÎÇϱâ À§ÇÏ¿© ±âÁ¸ À̵¿Åë½Å ½Ã½ºÅÛ Áß °¡Àå ³ôÀº ¼º´ÉÀ» º¸ÀÌ´Â 3GPP LTE-A ½Ã½ºÅÛÀ» ÂüÁ¶ ½Ã½ºÅÛÀ¸·Î ¼±Á¤ÇÏ¿© ¼º´É ºñ±³¸¦ ¼öÇàÇÑ´Ù. CoMP ½Ã½ºÅÛ ·¹º§ ½Ã¹Ä·¹À̼ÇÀº ³Î¸® »ç¿ëµÇ°í ÀÖ´Â OPNETÀ» ±â¹ÝÀ¸·Î Çϴµ¥, ¼¿ °£ Çù·Â Àü¼Û ½Ã½ºÅÛ ¼³°è¸¦ ¹ÙÅÁÀ¸·Î CU (Central Unit), CeNB (CoMP eNodeB), UE (User Equipment), MIMO (Multiple-Input Multiple-Output) ä³Î ¸ðµ¨ µîÀÇ ¸ðµâÀ» ±¸ÇöÇÑ´Ù. WINNER ¹«¼± ä³Î ¸ðµ¨ ¹× ITU (International Telecommunication Union) ³×Æ®¿öÅ© ¸ðµ¨ ȯ°æÀ» ÅëÇÏ¿© ÇÏÀ§ 5%ÀÇ ½ºÆåÆ®·³ È¿À²¼ºÀ» °¡Áö´Â ¼¿ °¡ÀåÀÚ¸® »ç¿ëÀÚÀÇ ¼º´ÉÀ» °ËÁõÇÒ ¶§, 3GPP LTE-A ÂüÁ¶ ½Ã½ºÅÛ ´ëºñ Á¦¾ÈÇÑ CoMP ½Ã½ºÅÛÀÇ ¿ë·®ÀÌ ¾à 2.5¹è Á¤µµ Áõ°¡ÇÏ¿´À½À» º¸ÀδÙ.
¿µ¹®³»¿ë
(English Abstract)
In this paper, so as to improve spectral efficiency for cell-boundary users, we introduce a coordinated multi-point (CoMP) system, which is one of inter-cell cooperative transmission strategies studied in 3GPP long-term evolution-advanced (LTE-A) systems, and develop a system-level simulator to evaluate performance. To identify performance improvement of the system with inter-cell cooperative transmission, we select a 3GPP LTE system as a reference, which shows the highest performance among the existing mobile communication systems, and conduct a performance comparison. System-level simulation is performed based on widely-used OPNET tool. We implement modules including central unit (CU), CoMP eNodeB (CeNB), user equipment (UE), and multiple-input multiple-output (MIMO) channel model, while designing the inter-cell cooperative transmission system. Under WINNER wireless channel model and international telecommunication union (ITU) network model environments, we then evaluate the performance of edge users who belong to the lower 5% in terms of spectral efficiency. It is finally shown that throughput of the proposed CoMP system gets improved up to 2.5 times compared to that of the 3GPP LTE reference system.
Å°¿öµå(Keyword) ¼¿ °æ°èÁö¿ª »ç¿ëÀÚ   ½Ã½ºÅÛ ·¹º§ ½Ã¹Ä·¹À̼Ǡ  ½ºÆåÆ®·³ È¿À²¼º   ÀÏ¿øÈ­µÈ ¸ÖƼ Æ÷ÀÎÆ®   Cell-boundary user   system-level simulation   spectrum efficiency   coordinated multi-point (CoMP)  
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