教師資料查詢 | 類別: 期刊論文 | 教師: 洪智傑 HUNG CHIH-CHIEH (瀏覽個人網頁)

標題:Energy-Aware Set-Covering Approaches for Approximate Data Collection in Wireless Sensor Networks
學年
學期
出版(發表)日期2012/11/01
作品名稱Energy-Aware Set-Covering Approaches for Approximate Data Collection in Wireless Sensor Networks
作品名稱(其他語言)
著者Hung, Chih-Chieh; Peng, Wen-Chih; Lee, Wang-Chien
單位
出版者
著錄名稱、卷期、頁數IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 24(11), pp.1993-2007
摘要To conserve energy, sensor nodes with similar readings can be grouped such that readings from only the representative nodes within the groups need to be reported. However, efficiently identifying sensor groups and their representative nodes is a very challenging task. In this paper, we propose a centralized algorithm to determine a set of representative nodes with high energy levels and wide data coverage ranges. Here, the data coverage range of a sensor node is considered to be the set of sensor nodes that have reading behaviors very close to the particular sensor node. To further reduce the extra cost incurred in messages for selection of representative nodes, a distributed algorithm is developed. Furthermore, maintenance mechanisms are proposed to dynamically select alternative representative nodes when the original representative nodes run low on energy, or cannot capture spatial correlation within their respective data coverage ranges. Using experimental studies on both synthesis and real data sets, our proposed algorithms are shown to effectively and efficiently provide approximate data collection while prolonging the network lifetime.
關鍵字Approximate data collection;wireless sensor networks;spatial correlation and clustering
語言英文(美國)
ISSN1558-2191;1041-4347
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
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