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Ȩ Ȩ > ¿¬±¸¹®Çå > Çмú´ëȸ ÇÁ·Î½Ãµù > Çѱ¹Á¤º¸Åë½ÅÇÐȸ Çмú´ëȸ > 2016³â Ãá°èÇмú´ëȸ

2016³â Ãá°èÇмú´ëȸ

Current Result Document : 9 / 18 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) DTN¿¡¼­ ¼Ó¼º Á¤º¸ º¯È­¿¡ µû¸¥ ³ëµåÀÇ À̵¿ ¿¹Ãø ±â¹ý
¿µ¹®Á¦¸ñ(English Title) A Prediction Method using property information change in DTN
ÀúÀÚ(Author) ÀüÀϱԠ  ÀÌ°­È¯   Il-Kyu Jeon   Kang-Whan Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 20 NO. 01 PP. 0425 ~ 0426 (2016. 05)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â Delay Tolerant Networks(DTNs)¿¡¼­ ³ëµåÀÇ ¼Ó¼º Á¤º¸¸¦ Markov ChainÀ¸·Î ºÐ¼®ÇÏ¿© ³ëµåÀÇ À̵¿ °æ·Î¸¦ ¿¹ÃøÇÏ´Â ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. ±âÁ¸ DTN¿¡¼­ ¿¹Ãø±â¹Ý ¶ó¿ìÆà ±â¹ýÀº ³ëµå°¡ ¹Ì¸® Á¤ÇØÁø ½ºÄÉÁÙ¿¡ µû¶ó À̵¿Çϰųª ³ëµå °£ Á¢ÃËÁ¤º¸¿Í °°Àº Ãß°¡ Á¤º¸°¡ ÇÊ¿äÇÏ´Ù. ÀÌ·¯ÇÑ ³×Æ®¿öÅ©¿¡¼­´Â Ãß°¡ÀûÀÎ Á¤º¸°¡ ¾ø´Â °æ¿ì ³ëµåÀÇ ½Å·Ú¼ºÀÌ ³·¾ÆÁø´Ù. º» ³í¹®¿¡¼­ Á¦¾ÈÇÏ´Â ¾Ë°í¸®ÁòÀº ³ëµåÀÇ ¼Ó¼º Á¤º¸ Áß ³ëµåÀÇ ¼Óµµ¿Í ¹æÇ⼺À» »óÅ·Π¸ÊÇÎÇÑ ÈÄ, Markov chainÀ» ÀÌ¿ëÇÏ¿© È®·üÀüÀÌ ¸ÅÆ®¸¯½º¸¦ »ý¼ºÇÏ¿© ³ëµåÀÇ À̵¿ °æ·Î¸¦ ¿¹ÃøÇÏ´Â ¾Ë°í¸®ÁòÀÌ´Ù. ÁÖ¾îÁø ¸ðÀǽÇÇè ȯ°æ¿¡¼­ ³ëµåÀÇ À̵¿ °æ·Î ¿¹ÃøÀ» ÅëÇØ Áß°è ³ëµå¸¦ ¼±Á¤ÇÏ¿© ¶ó¿ìÆà ÇÔÀ¸·Î½á ¸Þ½ÃÁö Àü¼Û·üÀÌ Áõ°¡ÇÏ°í Àü¼Û Áö¿¬ ½Ã°£ÀÌ °¨¼ÒÇÔÀ» º¸¿©ÁÖ°í ÀÖ´Ù.
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(English Abstract)
In this paper, we proposed an algorithm based on movement prediction using Markov chain in delay tolerant networks(DTNs). The existing prediction algorithms require additional information such as a node¡¯s schedule and connectivity between nodes. However, network reliability is lowered when additional information is unknown. To solve this problem, we proposed an algorithm for predicting a movement path of the node by using Markov chain. The proposed algorithm maps speed and direction for a node into state, and predict movement path of the node using transition probability matrix generated by Markov chain. As the result, proposed algorithm show that the proposed algorithms has competitive delivery ratio but with less average latency.
Å°¿öµå(Keyword) Delay Tolerant Network   Prediction   Context-awareness   Markov chain  
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