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
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¿ø¹®¼ö·Ïó(Citation) |
VOL 15 NO. 01 PP. 0539 ~ 0542 (2011. 05) |
Çѱ۳»¿ë (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.
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¿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.
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Å°¿öµå(Keyword) |
Alamouti scheme
correlated channels
outage probability
time-varying
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ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
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