教師資料查詢 | 類別: 期刊論文 | 教師: 張志勇 Chih-yung Chang (瀏覽個人網頁)

標題:SRA: A Sensing Radius Adaptation Mechanism for Maximizing Network Lifetime in WSNs
學年104
學期1
出版(發表)日期2016/01/27
作品名稱SRA: A Sensing Radius Adaptation Mechanism for Maximizing Network Lifetime in WSNs
作品名稱(其他語言)
著者Chao-Tsun Chang; Chih-Yung Chang; Shenghui Zhao; Jian-Cheng Chen; Tzu-Lin Wang
單位
出版者
著錄名稱、卷期、頁數IEEE Transactions on Vehicular Technology 65(12), p.9817-9833
摘要Coverage is an important issue that has been widely
discussed in wireless sensor networks (WSNs). However, it is still a big challenge to achieve both purposes of full coverage and energy balance. This paper considers the area coverage problem
for a WSN where each sensor has variable sensing radius. To prolong the network lifetime, a weighted Voronoi diagram (WVD) is proposed as a tool for determining the responsible sensing region of each sensor according to the remaining energy in a
distributed manner. The proposed mechanism, called SRA, mainly consists of three phases. In the first phase, each sensor and its neighboring nodes cooperatively construct the WVD for identifying the responsible monitoring area. In the second phase, each sensor adjusts its sensing radius to reduce the overlapping
sensing region such that the purpose of energy conservation can be achieved. In the last phase, the sensor with the least remaining energy further adjusts its sensing radius with its neighbor for maximizing the network lifetime. Performance evaluation and analysis reveal that the proposed SRA mechanism outperforms
the existing studies in terms of the network lifetime and the degree of energy balance.
關鍵字Area coverage;energy balance;variable sensing radius;weighted Voronoi diagram;wireless sensor networks.
語言英文(美國)
ISSN1939-9359;0018-9545
期刊性質國外
收錄於SCI;
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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