Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
·¹Àϸ® ÆäÀ̵ù ä³Î¿¡¼ Multi-Carrier DS-CDMA ½Ã½ºÅÛÀÇ Throughput Çؼ® |
¿µ¹®Á¦¸ñ(English Title) |
Throughput Analysis of Multi-Carrier DS-CDMA System in Rayleigh Fading Channels |
ÀúÀÚ(Author) |
±è¿µÃ¶
³ëÀ缺
°ÈñÁ¶
Á¶¼ºÁØ
Young-Chul Kim
Jae-Sung Roh
Heau-Jo Kang
Sung-Joon Cho
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 05 NO. 06 PP. 1066 ~ 1072 (2001. 10) |
Çѱ۳»¿ë (Korean Abstract) |
º» ³í¹®¿¡¼´Â ´ÙÁß°æ·Î ·¹Àϸ® ÆäÀ̵ù ä³Î¿¡¼ÀÇ ½½·Ô ALOHA ±¤´ë¿ª DS-CDMA ½Ã½ºÅÛ°ú ½½·Ô ALOHA Multi-Carrier DS-CDMA ½Ã½ºÅÛÀÇ throughputÀ» À¯µµÇÏ¿´´Ù. ´ÙÁß°æ·Î ·¹Àϸ® ÆäÀ̵ù ä³ÎÀ» ºü¸¥(fast) ÆäÀ̵ù°ú ´À¸°(slow) ÆäÀ̵ù ä³Î·Î ±¸ºÐÇÏ°í, À̸¦ ±¤´ë¿ª DS-CDMA ½Ã½ºÅÛ°ú Multi-Carrier DS-CDMA ½Ã½ºÅÛ¿¡¼ ÆÐŶ ±æÀÌ (N$_{d}$ ¼ö½Ä À̹ÌÁö)¿¡ µû¶ó ºñ±³, °ËÅäÇÏ¿´´Ù. ±× °á°ú, Multi-Carrier DS-CDMA ½Ã½ºÅÛÀº ÅëÀÏÇÑ ´ë¿ªÆøÀ» »ç¿ëÇÏ´Â ±¤´ë¿ª DS-CDMA º¸´Ù ½Ã½ºÅÛ ¿ë·®Àº °¨¼ÒÇÏ¿´À¸³ª ½Ã½ºÅÛÀÇ throughput ¸é¿¡¼ º¸´Ù ÁÁÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ºü¸¥ ·¹Àϸ® ÆäÀ̵ù ä³Î¿¡¼´Â Multi-Carrier DS-CDMA º¸´Ù ½Ã½ºÅÛÀÇ ÆÐŶ ±æÀ̸¦ ¼ÒÇüÈÇÏ¿© Àü¼ÛÇÔÀ¸·Î¼ throughputÀ» ³ôÀÌ´Â °ÍÀÌ È¿°úÀûÀ̸ç, ´À¸° ·¹Àϸ® ÆäÀ̵ù ȯ°æ¿¡¼´Â Multi-Carrier DS-CDMA ½Ã½ºÅÛÀÇ ½Ã½ºÅÛ ¿ë·®À» Áõ°¡½ÃÅ°°Å³ª, ÆÐŶ ±æÀ̸¦ ÀûÁ¤ÇÏ°Ô ±æ°Ô ÇÏ´Â °ÍÀÌ È¿°úÀûÀÌ´Ù.
|
¿µ¹®³»¿ë (English Abstract) |
ALOHA Multi-Carrier DS-CDMA systems in the multipath Rayleigh fading channel. The throughput of two systems are compared according to the length of a packet in the fast Rayleigh and the slow Rayleigh multipath fading. As a result, we have known that Multi-Carrier DS-CDMA system has less capacity than wideband DS-CDMA system in the same bandwidth, but throughput of Multi-Carrier DS-CDMA system is higher than that of wideband DS-CDMA system. And in Multi-Carrier DS-CDMA systems, higher throughput can be obtained through shortening the length of packet in the fast Rayleigh fading, and it is efficient to control the length of a packet adequately or increase the system capacity of Multi-Carrier DS-CDMA system in the slow Rayleigh fading.
|
Å°¿öµå(Keyword) |
Multi-Carrier DS-CDMA
ALOHA
slow fading
fast fading
throughput
|
ÆÄÀÏ÷ºÎ |
PDF ´Ù¿î·Îµå
|