2012³â Ãß°èÇмú´ëȸ
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
TE ÇÏÇ⸵ũ¿¡¼ ´Ü¸»ÀÇ À̵¿ ¼Óµµ¿¡ µû¸¥ ÀûÀÀÀû Â÷µî ½Ã°ø°£ºí·ÏºÎÈ£ º¹È£È ±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
An Adaptive Detection Scheme of Differential Space-Time Block Codes for Mobiles Operating with Various Speeds in LTE Downlink Scenario |
ÀúÀÚ(Author) |
±èµæ±Ô
ȲÀç±Õ
±èº´±æ
ÃÖº´Á¶
Deuckyu Kim
Jae-Gyun Hwang
Byoung-Gil Kim
Byoung-Jo Choi
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¿ø¹®¼ö·Ïó(Citation) |
VOL 16 NO. 02 PP. 0611 ~ 0614 (2012. 10) |
Çѱ۳»¿ë (Korean Abstract) |
½Ã°ø°£ ºí·Ï ºÎÈ£È(STBC: Space-Time Block Code) ±â¹ýÀº ´Ü¼øÇϸ鼵µ È¿°úÀûÀÎ ´ÙÀ̹ö½ÃƼ ±â¹ýÀ¸·Î WCDMA, HSDPA ¹× LTE À̵¿Åë½Å Ç¥ÁØ¿¡ äÅõǾú´Ù. ÀÌ·¯ÇÑ STBC ±â¹ýÀº ÆäÀ̵ù ä³ÎÀÇ ÃßÁ¤ Á¤È®µµ¿¡ µû¶ó ±× ¼º´ÉÀÌ Á¿ìµÈ´Ù. ä³Î ÃßÁ¤À» À§ÇÑ ±âÁØ ½Éº¼ÀÇ ¿À¹öÇìµå¸¦ ¼ö¿ëÇÒ ¼ö ¾ø°Å³ª °í¼ÓÀ¸·Î À̵¿ÇÏ´Â ¸ð¹ÙÀÏÀÇ °æ¿ì ä³Î ÃßÁ¤ÀÌ Èûµç °æ¿ì°¡ ÀÖ´Ù. ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇÏ¿© Â÷µî ½Ã°ø°£ ºí·Ï ºÎÈ£È(DSTM: Differential Space-Time Modulation) ±â¹ýµéÀÌ Á¦¾ÈµÇ¾î ¿Ô´Ù. ÀÌ ±â¹ýµéÀº ä³Î ÃßÁ¤À» ÇÊ¿ä·Î ÇÏÁö ¾Ê±â ¶§¹®¿¡ À§¿Í °°Àº °í¼Ó À̵¿ ȯ°æ¿¡ ÀûÇÕÇÑ ÀåÁ¡ÀÌ ÀÖ´Ù. º» ³í¹®¿¡¼´Â ´Ù¾çÇÑ ¼Óµµ·Î À̵¿ÇÏ´Â ¸ð¹ÙÀÏ Ã¤³Î¿¡ LTE ÆĶó¹ÌÅ͸¦ Àû¿ëÇÏ¿© ±âÁ¸ÀÇ STBC ¹× DSTMÀÇ ¼º´ÉÀ» °íÂûÇØ º¸°í, ´Ü¸»¿¡ Àû¿ë °¡´ÉÇÑ ÀûÀÀÀû DSTM º¹È£ ±â¹ýÀ» Á¦¾ÈÇÏ¿© ±× ¼º´ÉÀ» °íÂûÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
Space-Time Block Code (STBC) is a simple transmit diversity scheme mitigating detrimental effects of fading channel. However, STBC receivers require channel knowledge and suffer from inaccurate channel estimation. Differential Space-Time Modulation (DSTM) renders the receiver a choice of coherent detection or non-coherent detection, depending on the availability of the channel information. Based on the simulated BER performances of these two schemes over various normalized Doppler frequency scenarios using LTE-like parameters, a benefit of adaptively switching the receiver type is investigated.
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Å°¿öµå(Keyword) |
LTE
MIMO
STBC
DSTM
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ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
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