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Ȩ Ȩ > ¿¬±¸¹®Çå > Çмú´ëȸ ÇÁ·Î½Ãµù > Çѱ¹Á¤º¸Åë½ÅÇÐȸ Çмú´ëȸ > 2011³â Ãá°èÇмú´ëȸ

2011³â Ãá°èÇмú´ëȸ

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) ½Ãº¯ ¹× °ø°£ »ó°ü ä³Î ȯ°æ¿¡¼­ 2x1 ¾Ë¶ó¸¶¿ìƼ ±¸Á¶ (Alamouti Scheme)ÀÇ ¼º´É ºÐ¼®
¿µ¹®Á¦¸ñ(English Title) Analysis on the Performance of 2x1 Alamouti Scheme in Time-varying and Spatially Correlated Channels
ÀúÀÚ(Author) ÀÌÀºÁÖ   ¹ÚÀçµ·   À±±â¿Ï   Eunju Lee   Jaedon Park   Giwan Yoon  
¿ø¹®¼ö·Ïó(Citation) VOL 15 NO. 01 PP. 0539 ~ 0542 (2011. 05)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â ¹«¼± Åë½Å ½Ã½ºÅÛÀÇ ½Ãº¯¡¤°ø°£ »ó°ü ä³Î (time-varying and spatially correlated channel) ȯ°æ¿¡¼­ Àü¼Û ½Ã°ø°£ ºÎÈ£ ¹× ´Ü¼ø ¼±Çü º¹Á¶ ó¸® ¹æ½Ä(transmit space-time code and simple linear decoding processing)À¸·Î ±¸¼ºµÈ 2x1 Alamouti schemeÀÇ ¼º´ÉÀ» ºÐ¼®ÇÑ´Ù. Alamouti ±¸Á¶ÀÇ closed-form È®·ü¹ÐµµÇÔ¼ö (probability density function, PDF), Ãâ·Â ½ÅÈ£ ´ë ÀâÀ½ ºñ (output signal-to-noise ratio, SNR) ¹× ¿À¼ö½Å È®·ü (outage probability)À» ½Ã°£¿µ¿ª¿¡¼­ÀÇ »ó°ü°ü°è°¡ ¾øÀ½À» °¡Á¤ÇÏ°í °ø°£ »ó°ü °è¼ö(spatial correlation coefficient)ÀÇ ÇÔ¼ö·Î À¯µµÇÑ´Ù. À̷νá ä³Î ȯ°æÀÌ ½Ãº¯¡¤°ø°£ »ó°ü (time-varying and spatially correlated)µÈ °æ¿ì, Alamouti ±¸Á¶ÀÇ ¼º´ÉÀº »ó´çÈ÷ ¿­È­ µÊÀ» È®ÀÎÇÒ ¼ö ÀÖ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, we have implemented a performance analysis of 2x1 Alamouti scheme suggested by Alamouti, composed of the transmit space-time code and the simple linear decoding processing, in perfectly time-varying and spatially correlated channels. In addition, we derived the closed-form probability density function (PDF) of the output signal-to-noise ratio (SNR) and the outage probability of the Alamouti scheme as a function of the spatial correlation coefficient in the consideration of no correlation in time. As a result, it was found that the performance of the Alamouti scheme could be significantly degraded particularly in the case that the channels are time-varying and spatially correlated.
Å°¿öµå(Keyword) Alamouti scheme   correlated channels   outage probability   time-varying  
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå