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Ȩ Ȩ > ¿¬±¸¹®Çå > Çмú´ëȸ ÇÁ·Î½Ãµù > Çѱ¹Á¤º¸Åë½ÅÇÐȸ Çмú´ëȸ > 2015³â Ãá°èÇмú´ëȸ

2015³â Ãá°èÇмú´ëȸ

Current Result Document : 10 / 105 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) DTN¿¡¼­ ¿À¹öÇìµå °¨¼Ò¸¦ À§ÇÑ µ¿Àû ¹Ðµµ ±â¹Ý ¸Þ½ÃÁö È®»ê ¾ïÁ¦ ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Dynamic Density-based Inhibited Message Diffusion For Reducing Overhead In
ÀúÀÚ(Author) µµÀ±Çü   ¿À¿µÁØ   ÀÌ°­È¯   Yoon-hyung Dho   Young-jun Oh   Kang-whan Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 19 NO. 01 PP. 0120 ~ 0122 (2015. 05)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®Àº Delay Tolerant Network(DTN)¿¡¼­ À¯µ¿ ¹Ðµµ¸¦ »ç¿ëÇØ ¸Þ½ÃÁö È®»êÀ» ¾ïÁ¦ÇÏ´Â DDIM(Dynamic Density-based Inhibited Message diffusion) ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. ±âÁ¸ Epidemic ¶ó¿ìÆà ¾Ë°í¸®ÁòÀ̳ª Spray and Wait ¶ó¿ìÆà ¾Ë°í¸®Áò°ú °°Àº DTN ¶ó¿ìÆà ¾Ë°í¸®ÁòÀº ¸Þ½ÃÁöÀÇ Àü¼Û·üÀ» ³ôÀ̱â À§ÇØ ¼Ò½º ³ëµå¿Í ÀÌ¿ôÇÏ´Â ¸ðµç ³ëµåµé¿¡°Ô ¸Þ½ÃÁö¸¦ º¹»çÇÑ´Ù. ÇÏÁö¸¸ ³ëµå ¹Ðµµ°¡ ³ôÀº ³×Æ®¿öÅ©¿¡¼­ ±âÁ¸ DTN ¶ó¿ìÆà ¾Ë°í¸®ÁòÀ» »ç¿ëÇÒ °æ¿ì ºÒÇÊ¿äÇÑ ¸Þ½ÃÁö º¹»ç·Î ¸¹Àº ¿À¹öÇìµå°¡ ¹ß»ýÇÑ´Ù. Á¦¾ÈÇÏ´Â DDIM ¾Ë°í¸®ÁòÀº È¿À²ÀûÀÎ ¸Þ½ÃÁö º¹»ç ¼ö¸¦ °áÁ¤Çϱâ À§ÇØ ³ëµå Àü¼Û ¹üÀ§¿Í ÀÌ¿ô ³ëµå ¼ö¸¦ È°¿ëÇÏ¿© µ¿Àû ³ëµå ¹Ðµµ¸¦ °è»êÇÑ´Ù. ¶ÇÇÑ ºÒÇÊ¿äÇÑ ¸Þ½ÃÁö È®»êÀ» ¾ïÁ¦ÇÏ¿© Àü¼Û·ü ¼Õ½Ç°ú Áö¿¬ ½Ã°£ÀÇ Áõ°¡ ¾øÀÌ ¿À¹öÇìµå¸¦ °¨¼Ò½ÃŲ´Ù. ÁÖ¾îÁø ¸ðÀǽÇÇèÀ» ÅëÇØ Á¦¾ÈÇÏ´Â DDIM ¾Ë°í¸®Áò°ú ±âÁ¸ DTN ¶ó¿ìÆà ¾Ë°í¸®ÁòÀÇ Àü¼Û·ü, Áö¿¬½Ã°£, ¿À¹öÇìµå¸¦ ºñ±³ÇÏ°í Á¦¾ÈÇÏ´Â ¾Ë°í¸®ÁòÀÌ ´õ È¿À²ÀûÀÓÀ» °ËÁõÇÑ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, we proposed an algorithm of the unnecessary copied message inhibition using dynamic density what is called DDIM(Dynamic Density-based Inhibited Message diffusion) in DTNs(Delay Tolerant Networks). Existing DTN routing algorithms as Epidemic and Spray and Wait have some problems that occur large overhead in dense network due to the thoughtless message diffusion. Our proposed method, the DDIM, determines adjusted number of copied message through dynamic node density that is calculated using node¡¯s radio coverage and neighbor nodes in period time to solve message diffusion problem. It decrease overhead without losing message delivery ratio and increased latency through reducing message diffusion. In this paper, we compare delivery ratio, average latency and overhead of proposed algorithm, DDIM, and existing DTN routing algorithm and prove enhanced performance through simulation results.
Å°¿öµå(Keyword) ad-hoc network   intermittent connectivity   delay tolerant network   density-based  
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