期刊論文
| 學年 | 101 |
|---|---|
| 學期 | 1 |
| 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 | en_US |
| ISSN | 1558-2191 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 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/106221 ) |