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ÇѱÛÁ¦¸ñ(Korean Title) |
IEEE 802.15.4¿¡¼ ¿¡³ÊÁö È¿À²¼ºÀ» °í·ÁÇÑ ¼±ÅÃÀû Unacknowledged Àü¼Û |
¿µ¹®Á¦¸ñ(English Title) |
Selective Unacknowledged Transmission in IEEE 802.15.4 Considering Energy Efficiency |
ÀúÀÚ(Author) |
¾ç Çö
¹Úź¼¼
¹ÚâÀ±
Á¤ÃæÀÏ
Hyun Yang
Tanse Park
Changyun Park
Chungil Jung
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¿ø¹®¼ö·Ïó(Citation) |
VOL 16 NO. 06 PP. 0717 ~ 0721 (2010. 06) |
Çѱ۳»¿ë (Korean Abstract) |
ÀϹÝÀûÀ¸·Î ¹«¼± MAC¿¡¼´Â ½Å·Ú¼ºÀ» ºÎ¿©Çϱâ À§ÇØ ACK¸¦ ÀÌ¿ëÇÑ´Ù. ÇÑÆí, ¼¾¼ ³×Æ®¿öÅ© ÀÀ¿ë¿¡¼´Â µ¥ÀÌÅÍ°¡ ÁÖ±âÀûÀ¸·Î Àü¼ÛµÇ¸ç, ¾î´À Á¤µµÀÇ Áߺ¹¼ºÀ» °®°í ÀÖ´Ù. ÀÌ¿Í °°ÀÌ ½Å·Ú¼º¿¡ À¶Å뼺ÀÌ ÀÖ´Â ÀÀ¿ë¿¡¼´Â ¸ðµç MAC ÇÁ·¹ÀÓ¿¡ ´ëÇØ ACK¸¦ ÀÌ¿ëÇÏ´Â °ÍÀÌ ¿¡³ÊÁö ³¶ºñ·Î ÀÛ¿ëÇÒ ¼ö ÀÖ´Ù. ¿¡³ÊÁö Àý¾àÀ» ¸ñÀûÀ¸·Î ¼³°èµÈ IEEE 802.15.4¿¡¼´Â ÀÌ¿¡ ´ëºñÇÏ¿© ACK »ç¿ë ¿©ºÎ¸¦ ¼±Åà »çÇ×À¸·Î ÁöÁ¤ÇØ ³õ°í ÀÖÀ¸³ª, À̸¦ È°¿ëÇÑ ¿¬±¸´Â °ÅÀÇ ÀÌ·ç¾îÁöÁö ¾Ê°í ÀÖ´Ù. º» ³í¹®¿¡¼´Â ÇÁ·¹ÀÓÀÌ Àß Àü´ÞµÇ´Â °æ¿ì ACK¸¦ »ý·«ÇÏ°í, ÇÁ·¹ÀÓÀÌ Àß Àü´ÞµÇÁö ¾ÊÀ» °æ¿ì ACK¸¦ »ç¿ëÇÏ¿© »ç¿ëÀÚ°¡ ¿ä±¸ÇÏ´Â ½Å·Ú¼º(¿¹: ´Ü´ë´Ü ÆÐŶ µµ´ÞÀ²)À» ¸¸Á·ÇÒ ¼ö ÀÖ´Â ¼±ÅÃÀû Unacknowledged Àü¼Û ±â¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ¶ÇÇÑ NS2 ½Ã¹Ä·¹ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© ´Ù¾çÇÑ ¼º´É Æò°¡¸¦ ¼öÇàÇÏ¿´´Ù. |
¿µ¹®³»¿ë (English Abstract) |
In general, wireless MAC uses the ACK for reliability. Meanwhile, in wireless sensor network, data is delivered periodically and redundantly. In these situations, every ACK transmission causes the reliability flexible applications to waste some energy. IEEE 802.15.4 developed for energy efficiency has the option of using ACK or not, but there are no researches exploiting this peculiarity. In this paper, we proposed the selective unacknowledged transmission satisfying some requirements (e.g., end-to-end delivery) by removing the ACK when frames are delivered well and using the ACK when frames are delivered poorly. Also, we performed several evaluations exploiting the NS2 simulator. |
Å°¿öµå(Keyword) |
¿¡³ÊÁö È¿À²Àû Åë½Å
802.15.4 WPAN
¼±ÅÃÀû Unacknowledged Àü¼Û
¹«¼± ¼¾¼ ³×Æ®¿öÅ©
Energy Efficient Communication
Selective Unacknowledged
Wireless Sensor Networks
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