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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) Â÷¼¼´ë ¹«¼±¸Á¿¡¼­ ÆÐŶ µ¥ÀÌÅÍ ¼­ºñ½º¸¦ À§ÇÑ MAC ÇÁ·ÎÅäÄÝ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) A Study on MAC Protocol for Packet Data Services in Next-Generation Wireless Networks
ÀúÀÚ(Author) ÀÓÀÎÅà  In-Taek Lim  
¿ø¹®¼ö·Ïó(Citation) VOL 08 NO. 06 PP. 1115 ~ 1120 (2004. 10)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â ÆÐŶ CDMA ¸Á¿¡¼­ µ¥ÀÌÅÍ ¼­ºñ½º¸¦ À§ÇÑ CSSMA/AI MAC ÇÁ·ÎÅäÄÝÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÑ ÇÁ·ÎÅäÄÝÀº ÀÓÀÇ Á¢¼Ó¿¡ ÀÇÇÑ ÆÐŶ Ãæµ¹À» ÁÙÀ̱â À§ÇÏ¿© ÄÚµå »óÅ °¨Áö ¹× ¿¹¾à ±â¹ýÀ» »ç¿ëÇÑ´Ù. À̸¦ À§ÇÏ¿© ´Ü¸»±â°¡ ÄÚµå ¿¹¾àÀ» À§ÇÑ ÇÁ¸®¾ÚºíÀ» Àü¼ÛÇϱâ Àü¿¡ ±âÁö±¹¿¡¼­´Â ¸Å ÇÁ·¹ÀÓ¸¶´Ù ¿¹¾àµÈ ÄÚµåÀÇ »óŸ¦ ¹æ¼ÛÇÏ°í, ´Ü¸»±â´Â À̸¦ ±â¹ÝÀ¸·Î ÀÓÀÇÀÇ ¿¹¾àµÇÁö ¾ÊÀº Äڵ带 ¼±ÅÃÇÏ¿© ÇÁ¸®¾ÚºíÀ» Àü¼ÛÇÑ´Ù. ÇÁ¸®¾ÚºíÀ» Àü¼ÛÇÑ ´Ü¸»±â´Â ¼±ÅÃÇÑ ÄÚµåÀÇ ÇÏÇ⸵ũ¸¦ ÅëÇÏ¿© ±âÁö±¹À¸·ÎºÎÅÍ ÀÀ´äÀ» ±â´Ù¸°´Ù. ±âÁö±¹À¸·ÎºÎÅÍ ÄÚµå ¿¹¾à¿¡ ´ëÇÑ ÀÀ´äÀ» ¼ö½ÅÇÑ ´Ü¸»±â´Â ³²Àº ÇÁ·¹ÀÓ µ¿¾È ÆÐŶÀ» Àü¼ÛÇÑ´Ù. ÇÑÆí Àü¼ÛÇÒ ÆÐŶÀÌ ´Ü¸»±â ¹öÆÛ¿¡ ³²¾ÆÀÖ´Â °æ¿ì, ±âÁö±¹¿¡¼­´Â ÄÚµåÀÇ »óŸ¦ ¿¹¾à»óÅ·Π¹æ¼ÛÇÏ°í, ´Ü¸»±â¿¡¼­´Â ´ÙÀ½ ÇÁ·¹ÀÓ¿¡¼­ ¿¹¾àÇÑ Äڵ带 ÅëÇÏ¿© ³²Àº ÆÐŶÀ» Àü¼ÛÇÑ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, a CSSMA/AI MAC protocol for data services in packet CDMA network is presented. The main features of this protocol are the code status sensing and code reservation for reducing the packet collision. The base station broadcasts the code status on a frame-by-frame basis just before the beginning of each preamble transmission, and the mobile station transmits a preamble for reserving a randomly selected code based on the received code status. After having transmitted the preamble, the mobile station listens to the downlink of the selected code and waits for the base station reply. If this reply indicates that the code has been correctly acquired, it continues the packet transmission for the rest of the frame. If there are other packets waiting for transmission, the base station broadcasts the status of the code as reserved, and the mobile station transmits a packet on a reserved code for the successive frames.
Å°¿öµå(Keyword) MACÇÁ·ÎÅäÄÝ   ½½·Ô CDMA   È®»êÄÚµå ÇÁ·ÎÅäÄÝ  
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