Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
Multiuser MIMO ½Ã½ºÅÛÀ» À§ÇÑ Per-User Successive MMSE ÇÁ¸®ÄÚµù ±â¹ýÀÇ ¼º´É°ú º¹Àâµµ ºÐ¼® |
¿µ¹®Á¦¸ñ(English Title) |
Performance Evaluation and Complexity Analysis of a Per-User Successive MMSE Precoding Technique in Multiuser MIMO Systems |
ÀúÀÚ(Author) |
À̹Î
¿À¼º±Ù
Min Lee
Seong Keun Oh
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¿ø¹®¼ö·Ïó(Citation) |
VOL 17 NO. 01 PP. IVB ~ 0004 (2007. 04) |
Çѱ۳»¿ë (Korean Abstract) |
MU-MIMO (multiuser multiple-input multiple-output) ÇÁ¸®ÄÚµù ±â¹ýÀº MIMO ´ÙÁß Àü¼ÛÀ» ÀÌ¿ëÇÑ ´ÙÁßÈ À̵æ°ú °ø°£ ºÐÇÒ ´ÙÁß Á¢¼ÓÀÇ ÀÌÁ¡À» °áÇÕÇÑ´Ù. º» ³í¹®¿¡¼´Â MU-MIMO ÇÁ¸®ÄÚµùÀÇ Æ¯Â¡À» ÃÖ´ëÇÑ ÀÌ¿ëÇÏ¸é¼ ½Ã½ºÅÛ º¹Àâµµ¸¦ Å©°Ô ÁÙÀÏ ¼ö ÀÖ´Â PU-SMMSE (peruser successive minimum mean-squared error) ÇÁ¸®ÄÚµù ±â¹ý[1]À» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÈ ±â¹ý¿¡¼´Â »ç¿ëÀÚº° ¼øÂ÷ÀûÀÎ MMSE ÇÁ¸®ÄÚµùÀ» ¼öÇàÇÔÀ¸·Î½á ±âÁ¸ÀÇ ¼ö½Å ¾ÈÅ׳ªº° ¼øÂ÷ÀûÀÎ MMSE ÇÁ¸®ÄÚµùÀ» ¼öÇàÇÏ´Â SMMSE ±â¹ý[2]¿¡ ºñÇÏ¿© ¼º´É ÀúÇϾøÀÌ º¹Àâµµ¸¦ Å©°Ô ÁÙÀÏ ¼ö ÀÖ´Ù. º» ³í¹®¿¡¼´Â Ãß°¡ÀûÀ¸·Î Á¦¾ÈµÈ ±â¹ýÀÇ BER (bit error rate) ¼º´ÉÀ» ¸ðÀÇ ½ÇÇèÀ» ÅëÇÏ¿© ºÐ¼®ÇÏ¿´À¸¸ç, µ¿½Ã¿¡ º¹Àâµµ ºÐ¼®µµ ¼öÇàµÇ¾ú´Ù. ¶ÇÇÑ ÀÌµé ¼º´É°ú º¹Àâµµ¸¦ ±âÁ¸ÀÇ SMMSE, BD (block diagonalization) ±â¹ýµé°ú ºñ±³ÇÏ¿´´Ù. ¸ðÀÇ ½ÇÇè °á°ú·ÎºÎÅÍ BER ¼º´É Ãø¸é¿¡¼ ¿ì¼º ¸ðµå Àü¼Û (DMT: dominant mode transmission)°ú ´ÙÁß ¸ðµå Àü¼Û (MMT : multiple mode transmission) °æ¿ì¿¡ PU-SMMSE ¿Í SMMSE ±â¹ýÀÇ ¼º´ÉÀÌ µ¿ÀÏÇÏ°Ô ³ªÅ¸³²À»¾Ë ¼ö ÀÖ´Ù. ¶ÇÇÑ ÇÁ¸®ÄÚµù Çà·Ä °è»êÀ» À§ÇØ ¿ä±¸µÇ´Â °ö¼À ¿¬»ê ¼ö¸¦ °í·ÁÇÑ °è»êÀûÀÎ º¹Àâµµ ºÐ¼® °á°ú·ÎºÎÅÍ Á¦¾ÈµÈ ±â¹ýÀÇ º¹Àâµµ°¡ ±âÁ¸ÀÇ SMMSE ¿Í BD ±â¹ý¿¡ ºñÇØ ¸Å¿ì ³·Àº°ÍÀ» ¾Ë ¼ö ÀÖ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
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