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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) °ËÃâ º¹Àâµµ¸¦ °¨¼Ò½ÃÅ°´Â Depth-first branch and bound ¾Ë°í¸®Áò ±â¹Ý µðÄÚ´õ
¿µ¹®Á¦¸ñ(English Title) Depth-first branch-and-bound-based decoder with low complexity
ÀúÀÚ(Author) ÀÌÀºÁÖ   S.M.Humayun Kabir   À±±â¿Ï   Eunju Lee   S. M. Humayun Kabir   Giwan Yoon  
¿ø¹®¼ö·Ïó(Citation) VOL 13 NO. 12 PP. 2525 ~ 2532 (2009. 12)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â uncoded V-BLAST(Vertical Bell Laboratories Layered Space Time) ½Ã½ºÅÛ¿¡¼­ PSK ½ÅÈ£µéÀ» joint-detectionÇϱâ À§ÇÑ fast sphere decoder¸¦ Á¦¾ÈÇÑ´Ù. À̸¥¹Ù PSD¶ó ºÒ¸®´Â Á¦¾ÈµÈ µðÄÚ´õ´Â ¿¹ºñ󸮴ܰè¿Í °Ë»ö´Ü°è·Î ±¸¼ºµÈ´Ù. PSDÀÇ °Ë»ö´Ü°è¿¡¼­´Â depth-first branch and bound ¾Ë°í¸®ÁòÀ» ÅëÇØ °ËÃâ È帰¡ µÇ´Â ½ÅÈ£¿øµéÀÇ ÃÖ»ó¿ì¼±¼øÀ§(best-first order)¸¦ Á¤ÇÏ°í ÀÌ ¼øÀ§¿¡ µû¶ó ½ÅÈ£¸¦ °ËÃâÇÏ°Ô µÈ´Ù. ÀÌ ¶§ Á¦¾ÈµÈ µðÄÚ´õ´Â ÃÖ»ó¿ì¼±¼øÀ§(best-first order)¸¦ Á¤Çϴµ¥ ÀÖ¾î °è»êº¹À⼺À» ÁÙÀÌ´Â »õ·Î¿î ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. ½Ã¹Ä·¹ÀÌ¼Ç °á°ú´Â PSD¿¡ ÀÇÇØ ½Ã½ºÅÛÀÇ º¹À⼺Àº ÁÙÀ̸鼭 ½Ã½ºÅÛ ¼º´ÉÀº ML°ú µ¿ÀÏÇÏ°Ô À¯ÁöÇÒ ¼ö ÀÖÀ½À» º¸¿©ÁØ´Ù.
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(English Abstract)
In this paper, a fast sphere decoder is proposed for the joint detection of phase-shift keying (PSK) signals in uncoded Vertical Bell Laboratories Layered Space Time (V-BLAST) systems. The proposed decoder, PSD, consists of preprocessing stage and search stage. The search stage of PSD relies on the depth-first branch-and-bound (BB) algorithm with ¡®¡®best-first¡¯¡¯ orders stored in lookup tables. Simulation results show that the PSD is able to provide the system with the maximum likelihood (ML) performance at low complexity.
Å°¿öµå(Keyword) space-time coding   multi-input multi-output   maximum likelihood detection   Pham SD   space-time coding   multi-input multi-output   maximum likelihood detection   Pham SD  
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