Decentralized and Energy-Balanced Algorithms for Maintaining Temporal Full-Coverage in Mobile WSNs
學年 98
學期 2
出版（發表）日期 2010-05-01
作品名稱 Decentralized and Energy-Balanced Algorithms for Maintaining Temporal Full-Coverage in Mobile WSNs
作品名稱（其他語言）
著者 Chang, Chih-Yung; Hung, Li-Ling; Lu, Yun-Jung; Chang, Sheng-Wen; Chen, Yu-Chieh
單位 淡江大學資訊工程學系
出版者 Oxford: John Wiley & Sons Ltd.
著錄名稱、卷期、頁數 Wireless Communications and Mobile Computing 12(5), pp.445–462
摘要 Coverage is one of the most important issues in Wireless Sensor Networks (WSNs). However, full coverage only can be achieved when surplus mobile sensors contribute a coverage area larger than the hole size. When there is no surplus mobile sensor to cover a big hole, previous studies have utilized mobile sensors by moving the hole from one location to another, therefore achieving temporal full-coverage, where each location on the monitoring region has been ever covered by mobile sensors during a fixed time interval. However, with only some mobile sensors participating in the hole-movement task, this results in an energy-imbalance WSN. This paper considers a mobile WSN that contains a big hole where there exists no redundant mobile sensor to heal the hole. Three distributed algorithms, called Basic, Forward-Only, and Any-Direction movement mechanisms, are proposed to achieve the purpose of temporal full-coverage in a way that the total energy consumption is minimized or that the energy consumption of all mobile sensors that participate in the hole-movement task are balanced. Simulation results reveal that the proposed hole-movement mechanisms enhance the coverage of WSNs and balance the energy consumption of mobile sensor nodes.
關鍵字 Coverage; Eenergy-balanced; Hole-movement; Mobile sensor; WSN
語言 en
ISSN 1530-8669; 1530-8677
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Chang, Chih-Yung
審稿制度
國別 GBR
公開徵稿
出版型式 紙本
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