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Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
¼¾¼ ³×Æ®¿öÅ©¿¡¼ÀÇ µî±Þ ±â¹Ý GTS ½ºÄÉÁÙ¸µ ±â¹ý |
¿µ¹®Á¦¸ñ(English Title) |
A Class Based GTS Scheduling Method in Sensor Networks |
ÀúÀÚ(Author) |
ÀÌÁغ¹
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½Å¿ëÅÂ
Junbok Lee
Kyunghwa Lee
Kwanho Song
Yongtea Shin
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¿ø¹®¼ö·Ïó(Citation) |
VOL 24 NO. 01 PP. 0001 ~ 0009 (2010. 08) |
Çѱ۳»¿ë (Korean Abstract) |
IEEE 802.15.4 LR-WPANÀº ½´ÆÛÇÁ·¹ÀÓ ±¸Á¶¿¡ CAP¿Í CFP ±¸°£À¸·Î ³ª´©¾î µ¥ÀÌÅ͸¦ Àü¼ÛÇÑ´Ù. CAP ±¸°£¿¡´Â ¸ðµç ³ëµåµé¿¡ Slotted CSMA/CA ¹æ½ÄÀ» »ç¿ëÇÏ¿© °æÀïÀ» ÅëÇØ Ã¤³Î¿¡ Á¢±ÙÇÒ ¼ö ÀÖ°í, CFP ±¸°£¿¡¼´Â ÄÚµð³×ÀÌÅÍ¿¡ ÀÇÇØ ¼³Á¤µÈ GTSÀ» ÅëÇØ Æ¯Á¤ ³ëµå°¡ Á¤ÇØÁø ½Ã°£¿¡ ä³Î¿¡ Á¢±ÙÇÒ ¼ö ÀÖµµ·Ï µÇ¾î ÀÖ´Â ÀÏÁ¤ÀÇ bandwidth¸¦ ÇÊ¿ä·Î ÇÏ´Â µ¥ÀÌÅÍÀÇ °æ¿ì µî¿¡ »ç¿ëµÉ ¼ö ÀÖµµ·Ï µÇ¾î ÀÖ´Ù. º» ³í¹®¿¡¼´Â ±âÁ¸ÀÇ LR-WPAN¿¡ »ç¿ëµÇ´ø GTS ÇÁ·¹ÀÓ¿¡ ¿ì¼±¼øÀ§¸¦ ºÎ¿©ÇÏ¿© µ¥ÀÌÅ͸¦ Àü¼ÛÇÏ´Â ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀº µð¹ÙÀ̽º¿¡ »ç¿ëÀÚ°¡ ÁöÁ¤ÇØ ³õÀº ¹üÀ§ ¹× ÇÑ°èÄ¡¿¡ ¼¾½Ì µ¥ÀÌÅ͸¦ ¸ÊÇÎÇÏ¿© µ¥ÀÌÅ͸¦ µî±ÞÈ ½ÃŲ ÈÄ Á¦¾ÈÇÏ´Â ÇÁ·¹ÀÓ ±¸Á¶¸¦ ÀÌ¿ëÇÏ¿© GTS¸¦ ½ºÄÉÁÙ¸µ ±â¹ýÀ» Á¦¾ÈÇÑ´Ù. ÀÌ·Î ÀÎÇÏ¿© Áß¿ä µ¥ÀÌÅÍ¿¡ ´ëÇÑ GTSÀÇ È°¿ëµµ¸¦ ³ôÀ̸ç GTS »ó¿¡¼ ¿ì¼±¼øÀ§°¡ ³ôÀº ¼ø¼·Î Àü¼ÛÇÒ ¼ö ÀÖ´Â ±â¹ýÀ» ÅëÇؼ ¿ì¼±ÀûÀ¸·Î ¿äûÀÌ µé¾î¿À¸é ó¸®ÇØÁÖ´Â ±âÁ¸ÀÇ ·£´ýÇÑ µ¥ÀÌÅÍ Àü¼Û ¹æ½ÄÀ» ÇØ°áÇÏ¿© Áß¿ä µ¥ÀÌÅ͸¦ º¸ÀåÇÏ°í Áß¿ä µ¥ÀÌÅ͸¦ ¿ì¼±ÀûÀ¸·Î º¸³»¾ß ÇÏ´Â ÀÀ¿ëºÐ¾ß¿¡ À¯¿ëÇÏ°Ô »ç¿ëµÉ ¼ö ÀÖ´Ù.
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¿µ¹®³»¿ë (English Abstract) |
IEEE 802.15.4 LR-WPAN transfer data divided into two section in super frame structure. one of them is CAP(Contention Access Period) and the other is CFP(Contention Free Period). In CAP section, every node can access channels using Slotted CSMA/CA way. Otherwise, if fixed bandwidth needs, specific node can access channels in time through GTS(Guaranteed Time Slot) provided by coordinator in CFP section. Therefore, in this paper we propose the efficiency data transmission mechanism to allow priority into GTS frame used in LR-WPAN. the mechanism provide GTS schedule technique with the proposed frame structure to grade data after mapping the sensing data into the high range and limited value which user reserved in advance. This improves the GTS capability and solves the problem of traditional data transfer way in which data is transferred regardless of importance of it, so that the network or area whose performance can be easily affected by data transmission according to importance of data type can have a high efficiency.
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Å°¿öµå(Keyword) |
¼¾¼ ³×Æ®¿öÅ©
IEEE 802.15.4 LR-WPAN
GTS
½ºÄÉÁÙ¸µ
Sensor Network
IEEE 802.15.4 LR-WPAN
GTS
Scheduling
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