Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
ÇѱÛÁ¦¸ñ(Korean Title) |
3Â÷¿ø ½ÅÈ£ Àü¼Û½Ã½ºÅÛÀÇ ¼º´É |
¿µ¹®Á¦¸ñ(English Title) |
Performance of a 3-Dimensional Signal Transmission System |
ÀúÀÚ(Author) |
±ÇÇõÂù
°¼®±Ù
Hyeock Chan Kwon
Seog Geun Kang
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¿ø¹®¼ö·Ïó(Citation) |
VOL 20 NO. 11 PP. 2021 ~ 2026 (2016. 11) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â 3Â÷¿ø ½ÅÈ£ÀÇ Àü¼ÛÀ» À§ÇÑ ½Ã½ºÅÛ ¸ðµ¨À» Á¦½ÃÇÏ°í ¼º´ÉÀ» ºÐ¼®ÇÑ´Ù. 2Â÷¿ø ½ÅÈ£¿Í´Â ´Þ¸® 3Â÷¿ø ½ÅÈ£¸¦ Ç¥ÇöÇÒ ¼ö ÀÖ´Â Á÷±³Çü½ÄÀÇ ºÎÀç·Î ÀÎÇÏ¿© ¿©±â¼´Â Á÷±³ ±âÀúÇÔ¼ö¸¦ ÀÌ¿ëÇÏ¿© 3Â÷¿ø ½ÅÈ£¸¦ Àü¼ÛÇÑ´Ù. ÃÊ°íÂ÷·¹º§ °ÝÀÚÇü ½ÅÈ£¼º»óµµ¸¦ ÀÌ¿ëÇÑ ¸ðÀǽÇÇè °á°ú, 3Â÷¿ø Àü¼Û½Ã½ºÅÛÀº 2Â÷¿ø ½Ã½ºÅÛ¿¡ ºñÇÏ¿© ÇöÀúÈ÷ Çâ»óµÈ ¿À·ù ¼º´ÉÀ» °¡Áö´Â °ÍÀ¸·Î È®ÀεǾú´Ù. ÀÌ·¯ÇÑ ¼º´É Çâ»óÀº 3Â÷¿ø °ÝÀÚÇü ½ÅÈ£¼º»óµµÀÇ ½Éº¼°£ ÃÖ¼Ò À¯Å¬¸®µå °Å¸®°¡Á÷±³ÁøÆøº¯Á¶ ¼º»óµµ¿¡ ºñÇÏ¿© ÈξÀ Áõ°¡µÈ °ÍÀÌ ÁÖ¿ä ¿øÀÎÀÎ °ÍÀ¸·Î ÆǴܵȴÙ. À̸¦ È®ÀÎÇϱâ À§ÇÏ¿© ÃÖ¼Ò À¯Å¬¸®µå °Å¸®¸¦ ºñ±³ÇÑ °á°ú, 3Â÷¿ø 1024Áø ¼º»óµµ´Â Á÷±³ÁøÆøº¯Á¶ ¼º»óµµ¿¡ ºñÇÏ¿© ¾à 2.6¹è Áõ°¡µÈ ÃÖ¼Ò À¯Å¬¸®µå °Å¸®¸¦ °¡Áö´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ 4096Áø ¼º»óµµÀÇ °æ¿ì 3Â÷¿ø ¼º»óµµÀÇ ÃÖ¼Ò À¯Å¬¸®µå °Å¸®´Â 2Â÷¿ø ¼º»óµµ¿¡ ºñÇÏ¿© ¾à 3.2¹è Áõ°¡ÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In this paper, a system model for transmission of 3-dimensional (3-D) signals is presented and its performance is analyzed. Unlike 2-D signals, no quadrature form expression for the 3-D signals is available. Exploiting a set of orthogonal basis functions, the 3-D signals are transmitted. As a result of computer simulation using very higher-level signal constellations, the 3-D transmission system has significantly improved error performance as compared with the 2-D system. It is considered that the principal reason for such performance improvement is much increased minimum Euclidean distance (MED) of the 3-D lattice constellations compared with the corresponding 2-D ones. When the MEDs of 2-D and 3-D lattice constellation are compared to confirm the analysis, the MED of 3-D 1024-ary constellation is around 2.6 times larger than that of the quadrature amplitude modulation (QAM). Expanding the constellation size to 4096, the MED of 3-D lattice constellation is increased by 3.2 times of the QAM.
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Å°¿öµå(Keyword) |
µðÁöÅÐÅë½Å
½ÅÈ£¼º»óµµ
°ÝÀÚÇü ¼º»óµµ
Á÷±³ÁøÆøº¯Á¶
ÃÖ¼Ò À¯Å¬¸®µå °Å¸®
Digital communications
Signal constellation
Lattice constellation
Quadrature amplitude modulation (QAM)
Minimum Euclidean distance (MED)
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