• Àüü
  • ÀüÀÚ/Àü±â
  • Åë½Å
  • ÄÄÇ»ÅÍ
´Ý±â

»çÀÌÆ®¸Ê

Loading..

Please wait....

±¹³» ³í¹®Áö

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 : 1 / 2   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ½½·Ô CDMA ȯ°æ¿¡¼­ ÆÐŶ µ¥ÀÌÅÍ ¼­ºñ½º¸¦ À§ÇÑ MAC ÇÁ·ÎÅäÄÝ
¿µ¹®Á¦¸ñ(English Title) MAC Protocol for Packet Data Service in Slotted CDMA Environment
ÀúÀÚ(Author) ÀÓÀÎÅà  ln-Taek Lim  
¿ø¹®¼ö·Ïó(Citation) VOL 07 NO. 07 PP. 1399 ~ 1405 (2003. 12)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼­´Â ½½·Ô CDMA ½Ã½ºÅÛ¿¡¼­ °øÆòÇÑ ÆÐŶ µ¥ÀÌÅÍ ¼­ºñ½º¸¦ À§ÇÑ MAC ÇÁ·ÎÅäÄÝÀ» Á¦¾ÈÇÑ´Ù. ½½·Ô CDMA ½Ã½ºÅÛ¿¡¼­ µ¿ÀÏÇÑ ½½·Ô¿¡ Àü¼ÛµÇ´Â ÆÐŶµéÀº ´Ù¿øÁ¢¼Ó °£¼·À¸·Î ÀÛ¿ëÇÏ°í, ÀÌ´Â ÆÐŶ Àü¼Û ½ÇÆÐÀÇ ÁÖ¿ä ¿äÀÎÀÌ µÈ´Ù. µû¶ó¼­ ÃÖÀûÀÇ ½Ã½ºÅÛ Ã³¸®À²À» ¾ò±â À§ÇÏ¿© µ¿½Ã¿¡ Àü¼ÛµÇ´Â ÆÐŶÀÇ ¼ö¸¦ ÀÏÁ¤ÇÏ°Ô À¯Áö½Ãų ÇÊ¿ä°¡ ÀÖ´Ù. Á¦¾ÈÇÑ ÇÁ·ÎÅäÄÝ¿¡¼­´Â ±âÁö±¹ÀÌ ¸ÁÀÇ ºÎÇÏ¿¡ µû¶ó »õ·Î¿î ÆÐŶ°ú ÀçÀü¼ÛµÇ´Â ÆÐŶÀÇ Àü¼Û È®·üÀ» °è»êÇÏ¿© ¹æ¼ÛÇÏ°í, ´Ü¸»±â¿¡¼­´Â ¼ö½ÅÇÑ È®·üÀ» ±â¹ÝÀ¸·Î Àü¼ÛÀ» ½ÃµµÇÑ´Ù. ¼º´É ºÐ¼®ÀÇ °á°ú, Á¦¾ÈÇÑ ±â¹ýÀº °¢ ´Ü¸»±âµéÀÌ µ¶¸³ÀûÀ¸·Î Àü¼Û È®·üÀ» °è»êÇÏ¿© Á¢¼Ó Á¦¾î¸¦ ÇÏ´Â ±â¹ý¿¡ ºñÇÏ¿© ¿ì¼öÇÑ Ã³¸®À²¿Ã ¾òÀ» ¼ö ÀÖ¾úÀ¸¸ç, ºÎÇÏ¿¡ °ü°è¾øÀÌ °¢ ´Ü¸»±â¿¡°Ô °øÆòÇÑ ÆÐŶ Àü¼ÛÀ» º¸ÀåÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
This paper proposes an MAC protocol for fair packet data services in slotted CDMA system. In slotted CDMA system, the packets transmitted in the same slot act as multiple across interference, so that unsuccessful packet transmissions are entirely caused by multiple access interference. Therefore, in order to get the optimal system throughput, the number of simultaneously transmitted packets should be kept at a proper level. In the proposed protocol, the base station calculates the new and retransmitted packet transmission probability of mobile stations according to the offered load and then broadcasts these probabilities. Mobile stations, which have a packet, attempt to transmit packet with the received probabilities. Simulation results show that the proposed scheme can offer better system throughput than the conventional scheme, and guarantee a good fairness among all mobile stations regardless of the offered load.
Å°¿öµå(Keyword) MAC ÇÁ·ÎÅäÄÝ   ¹«¼± ATM   ½½·Ô CDMA  
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå