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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 :

ÇѱÛÁ¦¸ñ(Korean Title) Delay Tolerant Networks¿¡¼­ ¼Ó¼ºÁ¤º¸ ¿¹Ãø ¸ðµ¨À» ÀÌ¿ëÇÑ »óȲÀÎ½Ä ¿¬°á¼º ºÐ¼® ±â¹ý
¿µ¹®Á¦¸ñ(English Title) Context-aware Connectivity Analysis Method using Context Data PredictionModel in Delay Tolerant Networks
ÀúÀÚ(Author) Á¤·¡Áø   ¿À¿µÁØ   ÀÌ°­È¯   Rae-jin Jeong   Young-jun Oh   Kang-whan Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 19 NO. 04 PP. 1009 ~ 1016 (2015. 04)
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(Korean Abstract)
º» ³í¹®¿¡¼­´Â °èÃþÀû Ŭ·¯½ºÅÍ ±¸Á¶¿¡¼­ ¼Óµµ, ¹æÇâ µîÀÇ ¼Ó¼ºÁ¤º¸¸¦ ¿¹ÃøÇÏ¿© ¿¬°á¼ºÀ» ºÐ¼®ÇÏ´Â EPCM(Efficient Prediction-based Context-awareness Matrix) ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. ±âÁ¸ DTN¿¡¼­´Â Á¦ÇÑ ¾ø´Â Áß°è³ëµå ¼±Á¤À¸·Î ÀÎÇÑ Áö¿¬½Ã°£ÀÌ Áõ°¡ÇÏ°í, Á¦ÇÑÀûÀÎ ÀúÀå¿ë·® ¹× 󸮴ɷÂÀÇ ÇÑ°è·Î ÆÐŶ¼Õ½Ç ¹× ¿À¹öÇìµå°¡ ¹ß»ýÇÑ´Ù. µû¶ó¼­ º» ³í¹®¿¡¼­´Â Ŭ·¯½ºÅÍÀÇ ¼Ó¼ºÁ¤º¸¸¦ ÁÖ¾îÁø ¸ÅÆ®¸¯À¸·ÎºÎÅÍ Á¤ÀÇÇÏ°í ¿¹ÃøÇÏ¿© º£À̽º½ºÅ×À̼ǰúÀÇ ¿¬°á¼º¿¡ µû¶ó Áß°è³ëµå¸¦ ¼±Á¤ÇÏ´Â EPCM ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈµÈ ¾Ë°í¸®ÁòÀº Ŭ·¯½ºÅÍÀÇ ¼Ó¼ºÁ¤º¸¸¦ »óȲÁ¤º¸ ¸ÅÆ®¸¯½º¿¡ ÀúÀå ¹× ºÐ¼®ÇÏ°í, ÀûÀÀÀû º¸Á¤°¡ÁßÄ¡ÀÇ ¿ÀÂ÷º¸Á¤À¸·Î Ŭ·¯½ºÅÍÀÇ ¼Ó¼ºÁ¤º¸¸¦ ¿¹ÃøÇÑ´Ù. ¶ÇÇÑ ¿¹ÃøµÈ ¼Ó¼ºÁ¤º¸¿¡ µû¸¥ ¿¬°á¼ºÀ¸·Î º£À̽º½ºÅ×À̼ÇÀ» ÇâÇÏ¿© À̵¿ÇÏ´Â Áß°è³ëµå¸¦ ¼±Á¤ÇÏ°Ô µÈ´Ù. ÁÖ¾îÁø ȯ°æ¿¡ µû¸¥ ¸ðÀǽÇÇè¿¡¼­ ¿¹ÃøµÈ ³ëµåÀÇ ¼Ó¼ºÁ¤º¸¸¦ ÅëÇÑ ¿¬°á¼ºÀ¸·Î Áß°è³ëµå¸¦ ¼±Á¤ÇÔÀ¸·Î½á Àü¼Û´É·ÂÀ» ºñ±³ ºÐ¼®ÇÑ °á°ú ³ôÀº ÆÐŶ Àü¼Û·üÀ» º¸¿©ÁÖ¾ú´Ù.
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(English Abstract)
In this paper, we propose EPCM(Efficient Prediction-based Context-awareness Matrix) algorithm analyzing connectivity by predicting cluster's context data such as velocity and direction. In the existing DTN, unrestricted relay node selection causes an increase of delay and packet loss. The overhead is occurred by limited storage and capability. Therefore, we propose the EPCM algorithm analyzing predicted context data using context matrix and adaptive revision weight, and selecting relay node by considering connectivity between cluster and base station. The proposed algorithm saves context data to the context matrix and analyzes context according to variation and predicts context data after revision from adaptive revision weight. From the simulation results, the EPCM algorithm provides the high packet delivery ratio by selecting relay node according to predicted context data matrix.
Å°¿öµå(Keyword) DTN   »óȲÀνĠ  ¿¬°á¼º   ¸ÅÆ®¸¯½º   Delay Tolerant Networks   Context-awareness   Connectivity   Matrix  
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