Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
Á¤ÁøÆø ºÎÈ£ÈµÈ ´ÙÁߺÎÈ£ ÀÌÁøÁ÷±³ º¯Á¶ÀÇ QAM Àü¼Û¹æ½Ä¿¡ ´ëÇÑ ¿¬±¸ |
¿µ¹®Á¦¸ñ(English Title) |
A Study on QAM Transmission Schemes for Constant Amplitude Coded Multicode Biorthogonal Modulation |
ÀúÀÚ(Author) |
È«´ë±â
°¼ºÁø
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Àӽ¿Á
Á¶Áø¿õ
Dae-Ki Hong
Sung-Jin Kang
Sun-Hee Kim
Young-Sung Kim
Seung-Ok Lim
Jin-Woong Cho
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¿ø¹®¼ö·Ïó(Citation) |
VOL 12 NO. 02 PP. 0343 ~ 0351 (2008. 02) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ±âÁ¸¿¡ Á¦¾ÈµÇ¾ú´ø Á¤ÁøÆø ºÎÈ£ÈµÈ ´ÙÁß ºÎÈ£ ÀÌÁø Á÷±³ (CACB: Constant Amplitude Coded Multicode Biorthogonal) º¯Á¶ ¹æ½ÄÀ» °í¼ÓÈ ÇÏ´Â ±â¼ú·Î¼ CACBÀÇ ±¸Á¶¸¦ À¯ÁöÇÏ¸é¼ Á÷±³ À§»ó ÁøÆø º¯Á¶ (QAM: Quadrature Amplitude Modulation) ¹æ½ÄÀ» Àû¿ëÇÏ¿© ´ë¿ªÆø È¿À² (BE: Bandwidth Efficiency)À» Áõ°¡½ÃÅ´À¸·Î½á Àü¼Û·üÀ» ³ôÀÏ ¼ö ÀÖ´Â ¹æ½Ä¿¡ ´ëÇÏ¿© ¿¬±¸ÇÑ´Ù. ¶ÇÇÑ ¼ö½Å´Ü¿¡¼ ÃÖ´Ü °Å¸® ¼±Åà ¾Ë°í¸®Áò (MDSA: Minimum Distance Selection Algorithm)À» ÀÌ¿ëÇÑ QAM ¿¬ÆÇÁ¤ (SD: Soft Decision) º¹Á¶±â¸¦ ÅëÇÑ ¼º´É °³¼± ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ¸¶Áö¸·À¸·Î ½ÇÁ¦ ±¸Çö½Ã ´ÙÁß °æ·Î ÆäÀ̵ù (MPF: Multipath Fading)¿¡¼ °ÇÑ ½Ã½ºÅÛÀ» ±¸¼ºÇÒ ¼ö ÀÖµµ·Ï ÇÏ´Â °áÁ¤ ±Ëȯ µîȱâ (DFE: Decision Feedback Equalizer)ÀÇ Àû¿ë ¹æ¾ÈÀ» Á¦½ÃÇÑ´Ù. Á¦¾ÈµÈ ¹æ½ÄÀº ÇâÈÄ °í¼ÓÀÇ Àü¼ÛÀ» ¿ä±¸ÇÏ´Â ¹«¼± °³ÀÎ ¿µ¿ª ³×Æ®¿öÅ© (WPAN: Wireless Personal Area Network)ÀÇ ¹°¸®Ãþ (PHY: Physical Layer) Ç¥ÁØÀ¸·Î »ç¿ëµÉ ¼ö ÀÖ´Ù. |
¿µ¹®³»¿ë (English Abstract) |
In this paper, we investigate the design of the QAM (Quadrature Amplitude Modulation) method for the CACB (Constant Amplitude Coded Multicode Biorthogonal) scheme. The modulation method can improve the transmission data rate by increasing the BE (Bandwidth Efficiency). Additionally, we can improve the system performance by using the QAM SD (Soft Decision) method with the MDSA (Minimum Distance Selection Algorithm). Finally, the DFE (Decision Feedback Equalizer) for the CACB-QAM is simulated under the MPF (MultiPath Fading) channel for real implementation. The proposed scheme can be used for the PHY (PHYsical layer) standard of the WPAN (Wireless Personal Area Network) requiring high rate data transmission. |
Å°¿öµå(Keyword) |
QAM
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WPAN
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