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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 : 19 / 102 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) Ad-hoc ³×Æ®¿öÅ©¿¡¼­ Áö ¿¬ ACK¸¦ ÀÌ¿ëÇÑ TCP ¼º´É Çâ»ó¿¡ °üÇÑ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) A Study on Delayed ACK Scheme for TCP Traffic in Ad-hoc Network
ÀúÀÚ(Author) ¹Ú±¤Ã¤   ³ªµ¿°Ç   KwangChae Park   Donggeon Na  
¿ø¹®¼ö·Ïó(Citation) VOL 10 NO. 09 PP. 1654 ~ 1662 (2006. 09)
Çѱ۳»¿ë
(Korean Abstract)
Ad-hoc ³×Æ®¿öÅ©´Â ¹«¼± ¸µÅ©µé·Î ±¸¼ºµÈ ¸ÖƼ-Èí ³×Æ®¿öÅ©ÀÌ´Ù. ±×¸®°í ¹«¼± ¸µÅ©ÀÇ Àü¼Û Ư¼ºÀº À¯¼±¿¡ ºñÇØ º¸´Ù ºÒ¾ÈÁ¤ÇÑ»óÅÂÀÌ´Ù. ±×·¯¹Ç·Î Ad-hoc ³×Æ®¿öÅ©¿¡¼­´Â ÆÐŶ ¼Õ½ÇÀÌ ÀÚÁÖ ¹ß»ýÇÏ°í£¬ ÆÐŶ ¼Õ½Ç¿¡ ÀÇÇÑ TCP ¿¬°á ½ÇÆдÂTCP ¼º´ÉÀ» ½É°¢ÇÏ°Ô ÀúÇϽÃŲ´Ù. ¶ÇÇÑ£¬TCP ¼º´É ÀúÇÏ´Â ¹«¼±Ã¤³Î¿¡¼­ µ¥ÀÌÅÍ ÆÐŶ°ú ACK ÆÐŶÀÇ Ãæµ¹¿¡ ÀÇÇؼ­ ¹ß»ýÇÑ´Ù. º» ³í¹®¿¡¼­´Â ODA(Ordering-Delayed ACK)Áö¿¬ ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÏ°í£¬ODA ¾Ë°í¸®Áò°ú Áö¿¬ ACK ¾Ë°í¸®ÁòÀ» ÀÌ¿ëÇÏ¿© ¹«¼± Ad-hoc ³×Æ®¿öÅ©ÀÇ ¼º´ÉÀ» Çâ»ó½ÃÅ°°íÀÚ ÇÑ´Ù. Á¦¾ÈµÈ ODA ¾Ë°í¸®ÁòÀº ¹«¼± Ad-hoc ³×Æ®¿öÅ©¿¡¼­ÀÇ ¼ö½Å Ãø¿¡¼­ µ¥ÀÌÅÍ ÆÐŶÀÇ ¼ö¸¦ ¼ø¼­ÀûÀ¸·Î Áõ°¡½ÃŲ´Ù. º» ³í¹®¿¡¼­´Â NS-2¸¦ ÀÌ¿ëÇÏ¿© ÄÄÇ»ÅÍ ½Ã¹Ä·¹À̼ÇÀ» ¼öÇàÇÏ¿´´Ù. ½Ã¹Ä·¹ÀÌ¼Ç °á°ú£¬Á¦¾ÈµÈ ODA ¾Ë°í¸®ÁòÀº ±âÁ¸ÀÇ Áö¿¬ ACK ¾Ë°í¸®Áò¿¡ ºñÇؼ­ ¹«¼± ¸ÖƼ-ÜÌ Ad-hoc ³×Æ®¿öÅ© ȯ°æ¿¡¼­ ä³Î ¿ë·®ÀÌ Áõ°¡µÇ°í ³×Æ®¿öÅ©ÀÇ ¼º´ÉÀÌ Çâ»óµÊÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
An ad hoc network is multi-hop network composed of radio links, and the transmission quality of a radio link is more unstable than that of a wired circuit. Packet loss thus occurs frequently in an ad hoc network, and the consequent connection failure results in a severe deterioration of TCP performance. TCP performance also deteriorates because of the collision of data packets and ACK packets in the radio channel. In this paper we study to improve the performance of the Mobile Ad-hoc network by using Delayed ACK algorithm with our proposed ODA(Ordering-Delayed ACK) method. The proposed ODA algorithm increases the number of the data packets orderly at the receiver side which is going to be applied for the Mobile Ad-hoc network. We accomplished a computer simulation using NS-2. From the simulation results, we find the proposed ODA algorithm obviously enlarge the channel capacity and improve the network performance at the situation of multi-hop of ad-hoc network than the existing Delayed ACK algorithm.
Å°¿öµå(Keyword) Ad-hoc   TCP   Delayed ACK  
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