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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ ³í¹®Áö C : ÄÄÇ»ÆÃÀÇ ½ÇÁ¦

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Current Result Document : 52 / 102 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) MANET ±â¹ÝÀÇ IEEE802.11¿¡¼­ Gray Zone ¹®Á¦ ÇØ°áÀ» À§ÇÑ Àü¼Û·ü ¼³Á¤
¿µ¹®Á¦¸ñ(English Title) Transmission Rate Setting for the Gray Zone Problem in IEEE802.11 based MANETs
ÀúÀÚ(Author) ´Ï ´Ï¿£ Åõ ÆÊ   È«Ãæ¼±   À¯¹Ì ŸīŰ   Ä¡Ä«¶ó ¿ÀŸ   Nhy Nguyen Tu Pham   Choong Seon Hong   Yumi Takaki   Chikara Ohta  
¿ø¹®¼ö·Ïó(Citation) VOL 17 NO. 11 PP. 0607 ~ 0611 (2011. 11)
Çѱ۳»¿ë
(Korean Abstract)
¹«¼± ¾ÖµåȤ ³×Æ®¿öÅ©¿¡¼­ µ¥ÀÌÅÍ ÆÐŶÀÇ ¼Õ½ÇÀ» Áõ°¡½ÃÅ°´Â ¿øÀÎ Áß Çϳª´Â Gray Zone È¿°úÀÌ´Ù. Gray Zone È¿°ú´Â µ¥ÀÌÅÍ ÆÐŶÀ» PHYÀÇ µ¥ÀÌÅÍ Àü¼Û·üÀ̳ª ÀÌ¿Í °°Àº ³ôÀº Àü¼Û·ü·Î Àü¼ÛÇÏ´Â Áß Á¦¾î ÆÐŶÀ» ³·Àº ¼Óµµ·Î ºê·Îµåij½ºÆ®ÇÒ ¶§ ¹ß»ýÇÑ´Ù. ÀÌ °æ¿ì, ³ëµå´Â À¯È¿ÇÑ ¶ó¿ìÅ͸¦ ãÀ» ¼ö ÀÖÁö¸¸ ¸î¸î µ¥ÀÌÅÍ ÆÐŶÀº ¸ñÀûÁö¿¡ µµ´ÞÇÏÁö ¸øÇÏ¿© ³ôÀº ÆÐŶ ¼Õ½Ç·üÀ» ¹ß»ý½ÃŲ´Ù. ´ëºÎºÐÀÇ ¿¬±¸¿¡¼­´Â ¶ó¿ìÆà ÇÁ·ÎÅäÄÝÀ» ¼öÁ¤ÇÏ¿© Gray Zone È¿°ú¸¦ ¿ÏÈ­½ÃÄ×´Ù. ±×·¯³ª ÀÌ ¹æ¹ýÀÇ °æ¿ì ³ôÀº ¿¬»ê º¹Àâµµ·Î ÀÎÇØ ¼º´É¿¡ ³ª»Û ¿µÇâÀ» ÁØ´Ù. º» ³í¹®¿¡¼­´Â ºê·Îµåij½ºÆ® Àü¼Û·ü°ú µ¥ÀÌÅÍ Àü¼Û·üÀ» Á¶ÀýÇÏ¿© ±âÁ¸ ±â¼úº¸´Ù ´õ ³ôÀº Àü¼Û·üÀ» ´Þ¼ºÇϵµ·Ï ÇÑ´Ù. ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ º» Á¦¾È»çÇ×ÀÇ °£´ÜÇÑ ¹æ¹ýÀÌ Àü¼Û·üÀ» Å©°Ô Çâ»ó½ÃÅ°´Â °ÍÀ» Áõ¸íÇÑ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In wireless ad-hoc networks, one of the reasons that increase the data packet loss rate is gray zone effect. The gray zone effect can happen when broadcasting control packets with lower rate while transmitting the data packets with such higher rate or the same PHY data rate. In this case, nodes are able to find valid routes but some data packets may not reach the destination, which causes the high packet loss rate. Most research efforts so far have attempted to modify the routing protocol to take the gray zone effect into consideration. This method, however, could have a detrimental performance owning to its high computational complexity. In this paper, by adjusting the suitable broadcast rate and data transmission rate, we can obtain higher throughput than the original way. By simulations, we show that our simple approach can improve throughput significantly.
Å°¿öµå(Keyword) ¸ð¹ÙÀÏ ¾ÖµåȤ   ³×Æ®¿öÅ©   gray zone È¿°ú   ºê·Îµåij½ºÆ® Áֱ⠠ À¯´Ïij½ºÆ® Áֱ⠠ mobile ad-hoc networks   gray zone effect   broadcast rate   unicast rate  
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