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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 : 12 / 34 ÀÌÀü°Ç ÀÌÀü°Ç   ´ÙÀ½°Ç ´ÙÀ½°Ç

ÇѱÛÁ¦¸ñ(Korean Title) ¸ð¹ÙÀÏ ÇコÄɾ À§ÇÑ MAC ÇÁ·ÎÅäÄÝ ¼³°è¿¡ °üÇÑ ¿¬±¸
¿µ¹®Á¦¸ñ(English Title) A Study on MAC Protocol Design for Mobile Healthcare
ÀúÀÚ(Author) Á¤Çʼº   ±èÇö±Ô   Á¶¾çÇö   Pil-Seong Jeong   Hyeon-Gyu Kim   Yang-Hyun Cho  
¿ø¹®¼ö·Ïó(Citation) VOL 19 NO. 02 PP. 0323 ~ 0335 (2015. 02)
Çѱ۳»¿ë
(Korean Abstract)
¸ð¹ÙÀÏ ÇコÄɾî¶õ Á¤º¸ Åë½Å ±â¼ú°ú ¹ÙÀÌ¿À ±â¼úÀ» À¶ÇÕÇÑ ½Å°³³ä ÀÇ·á¼­ºñ½º·Î¼­ ½Ã°£°ú °ø°£¿¡ ±¸¾Ö¹ÞÁö ¾Ê°í ¾ðÁ¦ ¾îµð¼­³ª °Ç°­°ú »ýÈ°À» °ü¸®ÇÏ¿© °Ç°­ÇÑ »îÀ» À¯Áö½ÃÅ°±â À§ÇÑ °Ç°­°ü¸® ¼­ºñ½ºÀÌ´Ù. ¸ð¹ÙÀÏ ÇコÄɾ À§Çؼ­´Â »ýü½ÅÈ£ °èÃø °ü·Ã ±â¼úÀÎ WBAN(Wireless Body Area Network)°ú ¸ð¹ÙÀÏ ÀåÄ¡¸¦ ÀÌ¿ëÇÑ µ¥ÀÌÅÍ ºÐ¼® ¹× ¸ð´ÏÅ͸µ ±â¼úÀÌ ÇʼöÀûÀÌ´Ù. ¸ð¹ÙÀÏ ÇコÄɾî ȯ°æ¿¡¼­´Â ÀÌ¿ëÀÚÀÇ ¸ð¹ÙÀÏ ÀåÄ¡¸¦ Áß½ÉÀ¸·Î ±¸¼ºµÈ WBANÀÌ À̵¿ Áß¿¡ ´Ù¸¥ WBANÀ» ¸¸³ª°Ô µÇ¸é ÇϳªÀÇ ¸Åü¿¡ µÎ °³ÀÇ WBANÀÌ µ¿ÀÛÇÏ´Â °á°ú°¡ µÈ´Ù. µÎ °³ ÀÌ»óÀÇ WBANÀÌ Ãæµ¹ÇÏ°Ô µÇ¸é ³ëµåµéÀÌ ¼­·Î ºÎ¿© ¹ÞÀº ½½·Ô¿¡ º¸³»´Â µ¥ÀÌÅÍ ÇÁ·¹ÀÓµéÀÇ Ãæµ¹ÀÌ ¹ß»ýÇϸç ÀÌ´Â Àü¼Û½ÇÆÐ¿Í ´õºÒ¾î µ¥ÀÌÅÍ ÀçÀü¼ÛÀ¸·Î ÀÎÇÑ ºÒÇÊ¿äÇÑ ¿¡³ÊÁö ¼Ò¸ð¸¦ °¡Á®¿À°Ô µÈ´Ù. º» ³í¹®¿¡¼­´Â ÀÌ·¯ÇÑ ¹®Á¦Á¡µéÀ» ÇØ°áÇϱâ À§Çؼ­ ´ÙÀ½°ú °°ÀÌ ¸ð¹ÙÀÏ ÇコÄɾ Áö¿øÇÏ´Â MAC ÇÁ·ÎÅäÄÝ ¿ä¼Ò±â¼úÀ» Á¦¾ÈÇÏ¿´´Ù. ù°, Á¦¾ÈÇÏ´Â ½´ÆÛÇÁ·¹ÀÓÀº ³ëµå°¡ ÇÒ´çµÈ ½½·Ô¿¡¼­ µ¥ÀÌÅÍ Àü¼ÛÀ» º¸Àå¹Þ´Â TDMA(Time Division Multiple Access) ±â¹ÝÀÇ °æÀï ±¸°£°ú CSMA/CA ¾Ë°í¸®ÁòÀ» ÅëÇØ µ¥ÀÌÅ͸¦ Àü¼ÛÇÏ´Â °æÀï ±¸°£À» °¡Áø´Ù. µÑ°, Á¦¾ÈÇÏ´Â MAC ÇÁ·ÎÅäÄÝÀ» ±â¹ÝÀ¸·Î ÇÏ´Â WBANÀÇ Ãæµ¹À» °¨ÁöÇÏ°í ³×Æ®¿öÅ©¸¦ º´ÇÕÇÏ´Â ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÏ¿´´Ù. À̵¿¼ºÀ» °¡Áö´Â WBANÀÌ ´Ù¸¥ WBAN°ú Ãæµ¹ÇÏ°Ô µÇ¸é ³×Æ®¿öÅ©¸¦ À籸¼ºÇÏ¿© ³ëµå°¡ Àü¼ÛÇÏ´Â µ¥ÀÌÅÍ ÇÁ·¹ÀÓ Ãæµ¹À» ÁÙÀ̵µ·Ï ÇÏ¿´´Ù. Á¦¾ÈÇÏ´Â ½´ÆÛÇÁ·¹ÀÓ ±¸Á¶¿Í ³×Æ®¿öÅ© º´ÇÕ ¾Ë°í¸®ÁòÀÇ ¼º´ÉÆò°¡¸¦ À§Çؼ­ OMNeT ³×Æ®¿öÅ© ½Ã¹Ä·¹ÀÌ¼Ç ÇÁ·¹ÀÓ¿öÅ© ±â¹ÝÀÇ Castalia¸¦ »ç¿ëÇÏ¿´´Ù. ¼º´ÉÆò°¡ °á°ú Á¦¾ÈÇÑ MAC ÇÁ·ÎÅäÄÝÀ» »ç¿ëÇßÀ» ¶§°¡ IEEE 802.15.6À» »ç¿ëÇßÀ» ¶§ º¸´Ù Ãæµ¹ È®·üÀÌ °¨¼ÒÇÏ¿© ÆÐŶ Àü¼Û ¼º°ø·ü°ú ¿¡³ÊÁö È¿À²ÀÌ °³¼±µÈ °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
¿µ¹®³»¿ë
(English Abstract)
Mobile healthcare is a fusion of information technology and biotechnology and is a new type of health management service to keep people¡¯s health at anytime and anywhere without regard to time and space. The WBAN(Wireless Body Area Network) technology that collects bio signals and the data analysis and monitoring technology using mobile devices are essential for serving mobile healthcare. WBAN consisting of users with mobile devices meet another WBAN during movement, WBANs transmit data to the other media. Because of WBAN conflict, several nodes transmit data in same time slot so a collision will occur, resulting in the data transmission being failed and need more energy for re-transmission. In this thesis, we proposed a MAC protocol for WBAN with mobility to solve these problems. First, we proposed a superframe structure for WBAN. The proposed superframe consists of a TDMA(Time Division Muliple Access) based contention access phase with which a node can transmit data in its own time slot and a contention phase using CSMA/CA algorithm. Second, we proposed a network merging algorithm for conflicting WBAN based on the proposed MAC protocol. When a WBAN with mobility conflicts with other WBAN, data frame collision is reduced through network reestablishment. Simulations are performed using a Castalia based on the OMNeT network simulation framework to estimate the performance of the proposed superframe and algorithms. We estimated the performance of WBAN based on the proposed MAC protocol by comparing the performance of the WBAN based on IEEE 802.15.6. Performance evaluation results show that the packet transmission success rate and energy efficiency are improved by reducing the probability of collision using the proposed MAC protocol.
Å°¿öµå(Keyword) ¸ð¹ÙÀÏ ÇコÄɾ ¸Æ ÇÁÅäÅäÄÝ   ½´ÆÛÇÁ·¹ÀÓ   WBAN   Mobile Healthcare   MAC Protocol   Superframe   WBAN  
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