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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) V-BLAST ½Ã½ºÅÛ¿¡¼­ÀÇ BER ¼º´É Çâ»óÀ» À§ÇÑ Extended-list SQRD-based Decoder
¿µ¹®Á¦¸ñ(English Title) Extended-list SQRD-based Decoder for Improving BER Performance in V-BLAST Systems
ÀúÀÚ(Author) Van-Su PHAM   Minh-Tuan LE   À±±â¿Ï   Van-Su PHAM   Minh-Tuan LE   Giwan YOON  
¿ø¹®¼ö·Ïó(Citation) VOL 09 NO. 07 PP. 1452 ~ 1457 (2005. 11)
Çѱ۳»¿ë
(Korean Abstract)
QR Decomposition-based (QRD) decoding class¿¡¼­´Â, ½Ã½ºÅÛ ¼º´ÉÀÌ ¿¡·¯ Àü¼Û¿¡ ¹Î°¨ÇÏ´Ù. ±×·¯¹Ç·Î ÀÌÀüÀÇ layerµéÀ» Á¤È®ÇÏ°Ô µðÄÚµùÇÏ´Â °ÍÀÌ Áß¿äÇÏ´Ù. ¿¡·¯ Àü¼Û¿¡ ¹Î°¨ÇÏÁö ¾Êµµ·Ï ÇÏ´Â Á¢±Ù ¹æ¹ý ÁßÀÇ Çϳª°¡ layerµéÀÇ ÃÖÀû µðÄÚµù order¸¦ Á¦¾ÈÇÏ´Â °ÍÀÌ´Ù. º» ³í¹®¿¡¼­´Â »õ·Î¿î extended-list Sorted QRD-based (SQRD) µðÄÚµù Á¢±Ù ¹æ¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÇ´Â µðÄÚµù ¹æ¹ý¿¡´Â ¾à°£ÀÇ Ã¹Â° layerµéÀÇ solutionÀÌ »ó´çÈ÷ °¡´É¼º ÀÖ´Â solutionµéÀÇ list·Î È®ÀåµÈ´Ù. ÀÌ·¸°Ô ÇÔÀ¸·Î °¡Àå ³·Àº layerÀÇ diversity°¡ Áõ°¡µÈ´Ù. °á°úÀûÀ¸·Î ½Ã½ºÅÛ ¼º´ÉÀÌ ´Ù¸¥ °ÍµéÀÇ ¿¡·¯ Àü¼Ûº¸´Ù ´ú ¹Î°¨ÇÏ°Ô µÈ´Ù. Á¦¾ÈµÇ´Â ¹æ¹ýÀº ÄÄÇ»ÅÍ ½Ã¹Ä·¹ÀÌ¼Ç °á°ú·Î Áõ¸íµÈ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In the QR Decomposition-based (QRD) decoding class, the system performance is sensitive to the error propagation. Thus, it is critical to correctly decode the previous layers. One apprach to desensitize the error propagation is to propose the optimal decoding order of layers. In this wort we propose a new extended-list Soled QRD-based (SQRD) decoding approach. In the proposed decoding scheme, the solution of the few first layers is extended as the list of promising possible solutions. By doing so, the diversity of the lowest layer is increased. As a result, the system performance is less sensitive to the error propagation than its counterparts. The proposed approach is verified by the computer simulation results.
Å°¿öµå(Keyword) Space Time Codes (STCs)   Multiple-Input Multiple-Output (MIMO) system   V-BLAST   Wireless Communication System  
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