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Implementation of Storage Manager to Maintain Efficiently Stream Data in Ubiquitous Sensor Networks  

Lee, Su-An (Dept. of Computer Science, Kangwon University)
Kim, Jin-Ho (Dept. of Computer Science, Kangwon University)
Shin, Sung-Hyun (BK21, Hanyang University)
Nam, Si-Byung (Dept. of Electornic Eng., Kangwon University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea CI / v.46, no.3, 2009 , pp. 24-33 More about this Journal
Abstract
Stream data, gathered from ubiquitous sensor networks, change continuously over time. Because they have quite different characteristics from traditional databases, we need new techniques for storing and querying/analyzing these stream data, which are research issues recently emerging. In this research, we implemented a storage manager gathering stream data and storing them into databases, which are sampled continuously from sensor networks. The storage manager cleans faulty data occurred in mobile sensors and it also reduces the size of stream data by merging repeatedly-sampled values into one and by employing the tilted time frame which stores stream data with several different sampling rates. In this research furthermore, we measured the performance of the storage manager in the context of a sensor network monitoring fires of a building. The experimental results reveal that the storage manager reduces significantly the size of storage spaces and it is effective to manage the data stream for real applications monitoring buildings and their fires.
Keywords
유비쿼터스 센서 네트워크;스트림 데이터;저장 관리자;경동 시간 구조;데이터 축소;
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Times Cited By KSCI : 1  (Citation Analysis)
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