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¹ßÇ¥ÀÚ : Á¶µ¿È£ |
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¼Ò¼Ó : KAIST |
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Á÷À§ : ±³¼ö |
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1975. 3 - 1979. 2 ¼¿ï´ëÇб³ ÀüÀÚ°øÇаú ÀüÀÚÀü°ø(Çлç)
1979. 3 - 1981. 2 KAIST Àü±â ¹× ÀüÀÚ°øÇаú Åë½ÅÀü°ø(¼®»ç)
1981. 3 - 1985. 2 KAIST Àü±â ¹× ÀüÀÚ°øÇаú Åë½Å Àü°ø(¹Ú»ç)
1985. 3 - 1987. 2 KIST Åë½Å°øÇבּ¸½Ç ¼±ÀÓ¿¬±¸¿ø
1987. 3 - 1998. 1 °æÈñ´ëÇб³ ÀüÀÚ°è»ê°øÇаú ±³¼ö
1989. 9 - 1995. 7 °æÈñ´ëÇб³ ÀüÀÚ°è»ê¼Ò ¼ÒÀå
1998. 2 - ÇöÀç KAIST Àü±â ¹× ÀüÀÚ°øÇÐÀü°ø ±³¼ö
2001. 8 - 2003. 7 KAIST Á¤º¸Åë½Å°øÇÐ ÇÐÁ¦Àü°ø Ã¥ÀÓ±³¼ö
2002. 3 1 - 2004. 5 KTF »ç¿ÜÀÌ»ç
2003. 9. 1 - 2006. 8 Á¤º¸Åë½ÅºÎ IT ½Å¼ºÀ嵿·Â À̵¿Åë½Å PM
2004. 4. 20 - 2008. 4 °úÇбâ¼úºÎ Â÷¼¼´ë ¼ºÀ嵿·Â ÃßÁø Ưº°À§¿øȸ ¹Î°£À§¿ø
2004. 4 - 2006. 8 °úÇбâ¼úºÎ Â÷¼¼´ë ¼ºÀ嵿·Â Â÷¼¼´ë À̵¿Åë½Å»ç¾÷´Ü ´ÜÀå
2006.5 - ÇöÀç ±¹¹æºÎ ÀÚüÆò°¡À§¿øȸ À§¿ø
2007. 1 - ÇöÀç KAIST IT À¶ÇÕ¿¬±¸¼Ò ¿¬±¸¼ÒÀå
2008.12 - ÇöÀç ¹æ¼ÛÅë½ÅÀ§¿øȸ ÀüÆÄ Á¤Ã¥ ½ÉÀÇÀ§¿øȸ À§¿ø, ÀüÆÄ Á¤Ã¥ ÀÚ¹®´Ü ÀÚ¹®À§¿ø
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Á¸ÀÇ Åë½Å ½Ã½ºÅÛ¿¡ ºñÇؼ 3C (capacity, coverage, cost) ¹®Á¦°¡ ´õ ½É°¢ÇÏ°Ô ´ëµÎµÇ°í ÀÖ´Ù. ÀÌ·¯ÇÑ 3
C ¹®Á¦¸¦ ÇØ°áÇϱâ À§Çؼ ¿©·¯ ¿¬±¸ ±â°üµé¿¡¼ ´Ù¾çÇÑ ¹æ¾ÈµéÀÌ ¸ð»öµÇ°í ÀÖ´Ù. ¿ì¼± 4G ½Ã½ºÅÛ¿¡
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°Ô µÈ´Ù. ¶ÇÇÑ ÃÖ±Ù¿¡´Â ÆèÅ伿(femto cell)À» ÀÌ¿ëÇÏ¿© ÆèÅä±âÁö±¹(femto BS) °£ÀÇ Åë½ÅÀ» ÅëÇØ covera
ge¸¦ ´Ã¸®°í capacity¸¦ Áõ°¡½ÃÅ°´Â ¹æ¾ÈÀÌ Á¦½ÃµÇ°í ÀÖ´Ù.
º» ¹ßÇ¥¿¡¼´Â ÀÌ·¯ÇÑ 3C ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇÑ ¹æ¾È Áß Çϳª·Î¼ BDMA (Beam Division Multiple Acces
s) ±â¼ú¿¡ ´ëÇؼ ´Ù·çµµ·Ï ÇÑ´Ù. BDMA ½Ã½ºÅÛ¿¡¼´Â ±âÁö±¹ÀÌ multiple beamÀ» ÀÌ¿ëÇÏ¿© µ¿½Ã¿¡ ´Ù¼ö
ÀÇ ´Ü¸»µé¿¡°Ô Åë½Å ¼ºñ½º¸¦ Á¦°øÇÔÀ¸·Î½á ÁÖÆļö ÀÚ¿øÀÇ °ø°£Àû Àç»ç¿ëÀ» ±Ø´ëÈÇÏ¿© capacity¸¦
Áõ°¡½ÃÅ°°í beamformingÀ» ÅëÇؼ coverage¸¦ Áõ°¡½ÃŲ´Ù. ±âÁ¸ÀÇ SDMA (Spatial Division Multiple Acces
s)¿Í´Â ´Þ¸® BDMA¿¡¼´Â ´Ü¸»ÀÇ À§Ä¡ Á¤º¸¸¦ ÀÌ¿ëÇÏ¿© ±× ¹æÇâÀ¸·Î beamÀ» Àü¼ÛÇϹǷΠ±âÁö±¹ÀÇ ant
enna ¼ö°¡ ¸¹´õ¶óµµ SDMA ½Ã½ºÅÛ¿¡ ºñÇؼ ÈξÀ ´õ ³·Àº º¹Àâµµ¸¦ °¡Áö°í ÀÖÀ¸¸ç ´õ ÀÛÀº ä³Î Çǵå
¹é ¿À¹öÇìµå¸¦ °®´Â´Ù. ƯÈ÷, º» ¹ßÇ¥¿¡¼´Â BDMA ½Ã½ºÅÛ¿¡¼ÀÇ radio resource management ¹æ¾È, bea
m »ý¼º ¹æ¾È, beam °£ power allocation°ú user selection ¹æ¾È¿¡ ´ëÇؼ ´Ù·çµµ·Ï ÇÑ´Ù. ¶ÇÇÑ BDMA ½Ã½º
ÅÛ¿¡¼ °¢ ´Ü¸»µéÀÌ À̵¿¼ºÀ» °¡Áö°í ÀÖÀ» ¶§ À̸¦ Áö¿øÇϱâ À§ÇÑ seamless ¼ºñ½º Á¦°ø ¹æ¾È¿¡ ´ëÇØ
¼ ¼³¸íÇÏ°í °¢ ÆèÅä±âÁö±¹µéÀÌ º°µµÀÇ cell planning ¾øÀÌ ÀÚµ¿ÀûÀ¸·Î ¼³Ä¡µÇ´Â self organizing BDMA sy
stem¿¡ ´ëÇؼµµ ¾ð±ÞÇϵµ·Ï ÇÑ´Ù.
- Overview of BDMA system
- Beam formation in BDMA system
- Resource allocation strategy in BDMA system
- Mobility support in BDMA system
- Self organizing algorithm for BDMA system
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