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ÇѱÛÁ¦¸ñ(Korean Title) |
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¿µ¹®Á¦¸ñ(English Title) |
A Context Aware Data-Centric Storage Scheme in Wireless Sensor Networks |
ÀúÀÚ(Author) |
±èÇöÁÖ
ÀÌÃæÈñ
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À¯Àç¼ö
Hyun Ju Kim
Chung Hui Lee
Jun Ho Park
Dong Ook Seong
Jae Soo Yoo
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¿ø¹®¼ö·Ïó(Citation) |
VOL 27 NO. 02 PP. 0069 ~ 0082 (2011. 08) |
Çѱ۳»¿ë (Korean Abstract) |
¼¾¼ ³×Æ®¿öÅ©¿¡¼ µ¥ÀÌÅÍ Á᫐ ÀúÀå ±â¹ýÀº ÃøÁ¤°ªÀ» È¿À²ÀûÀ¸·Î ÀúÀåÇÏ°í ÁúÀǸ¦ ó¸®Çϱâ À§ÇÑ ´ëÇ¥ÀûÀÎ ¿¬±¸ Áß ÇϳªÀÌ´Ù. µ¥ÀÌÅÍ Á᫐ ÀúÀå ±â¹ýÀÇ °æ¿ì ÁúÀǸ¦ È¿°úÀûÀ¸·Î ó¸®Çϱâ À§ÇØ ¼öÁýÇÑ µ¥ÀÌÅÍ °ª¿¡ µû¶ó ÀúÀå µÉ ¼¾¼ ³ëµå¸¦ ÁöÁ¤ÇÏ°í, ÁúÀÇ Ã³¸®¸¦ À§ÇØ ÁúÀÇ¿¡ ÇØ´çÇÏ´Â µ¥ÀÌÅ͸¦ ÀúÀåÇÏ´Â ³ëµå¿¡¼¸¸ µ¥ÀÌÅ͸¦ ¼öÁýÇÑ´Ù. ÇÏÁö¸¸ ±âÁ¸¿¡ Á¦¾ÈµÈ DCS ±â¹ýµéÀº µ¥ÀÌÅÍÀÇ ÀúÀå ¹üÀ§¸¦ °íÁ¤ÀûÀ¸·Î ¼³Á¤ÇÑ´Ù. ±×·¯¹Ç·Î ½Ã±âº°·Î »óÀÌÇÑ ¹üÀ§ÀÇ µ¥ÀÌÅÍ°¡ ¹ß»ýµÇ´Â ½ÇÁ¦ ÀÀ¿ë¿¡¼´Â ÀúÀå °ø°£ È°¿ëÀÇ ºÒ±ÕµîÀ» ÃÊ·¡ÇÏ¿© ³×Æ®¿öÅ© ¼ö¸íÀ» ´ÜÃà½ÃŲ´Ù. ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇØ, º» ³í¹®¿¡¼´Â ½Ã°£ÀÌ Áö³²¿¡ µû¶ó º¯È ÇÏ´Â µ¥ÀÌÅÍ ¹ß»ý ÆÐÅÏ¿¡ »óȲ ÀûÀÀÀûÀÎ ¹üÀ§ ¼³Á¤ ±â¹ýÀ» Àû¿ëÇÏ¿© ³×Æ®¿öÅ© Àü¹Ý¿¡ °ÉÃÄ ³ëµåµéÀÇ ÀúÀå °ø°£À» ±ÕµîÇÏ°Ô »ç¿ëÇÏ´Â »óȲ ÀÎÁö µ¥ÀÌÅÍ Á᫐ ÀúÀå ¹æ½ÄÀ» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ±â¹ýÀÇ ¿ì¼ö¼ºÀ» º¸À̱â À§ÇØ ½Ã¹Ä·¹À̼ÇÀ» ÅëÇØ ±âÁ¸ DCS±â¹ý°ú ¼º´ÉÀ» ºñ±³Æò°¡ ÇÏ¿´´Ù. ±× °á°ú, Á¦¾ÈÇÏ´Â ±â¹ýÀº ±âÁ¸ ±â¹ý¿¡ ºñÇØ ³×Æ®¿öÅ© ¼ö¸íÀÌ Æò±Õ 377.7% Áõ°¡ÇÏ¿´´Ù.
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¿µ¹®³»¿ë (English Abstract) |
In wireless sensor networks, various data-centric storage schemes (DCS) are one of representative researches to efficiently store sensor readings and to process a query. The DCS scheme assigns distributed data regions to sensor nodes and stores sensor readings to the sensor node which is responsible for the data region to process the query efficiently. However, the existing DCS schemes have some drawbacks that the sensor nodes have the fixed ranges to store sensor readings. Because the ranges of sensor readings change periodically in real world applications, they have problems that they use storage space unevenly in entire sensors and their network lifetimes are reduced. To solve such a problem, we propose a context aware data-centric storage scheme to store sensor readings equally in the entire sensor network. To show the superiority of our proposed scheme, we compare it with the existing DCS schemes. Our experimental results show that our proposed scheme improves about 377.7% lifetime over the existing schemes on average.
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Å°¿öµå(Keyword) |
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µ¥ÀÌÅÍÁß½ÉÀúÀå±â¹ý
ÀÎ-³×Æ®¿öÅ©ÁúÀÇó¸®
Wireless Sensor Networks
Data-Centric Storage Scheme
In-Network Query Processing
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