TCSAR: Target Coverage Mechanism for Sensors With Adjustable Sensing Range in WRSNs
學年 110
學期 2
出版（發表）日期 2022-02-15
作品名稱 TCSAR: Target Coverage Mechanism for Sensors With Adjustable Sensing Range in WRSNs
作品名稱（其他語言）
著者 Qiaoyun Zhang; Chih-Yung Chang; Zaixiu Dong; Diptendu Sinha Roy
單位
出版者
著錄名稱、卷期、頁數 IEEE Sensors Journal 22(4), p.3756-3765
摘要 In wireless rechargeable sensor networks ( WRSNs ), target coverage is an important issue. However, most studies assumed that the sensors were powered by battery with fixed sensing radiuses. Furthermore, most existing studies applied the Boolean Sensing Model ( BSM ) which cannot reflect the physical features of sensing. As a result, the detection accuracy was decreased in a real application. This paper proposes a target coverage mechanism, called TCSAR , which aims to maximize the surveillance quality of the point of interests ( POIs ) under the constraint of perpetual network lifetime. The proposed TCSAR applies the Probabilistic Sensing Model ( PSM ) and assumes that the sensing radius of each sensor is adjustable. The proposed mechanism consists of two phases. In the scheduling phase, the TCSAR initially evaluates the surveillance contribution of each sensor and then schedules the sensor with the maximal contribution to the bottleneck POIs . In the space time transformation phase, the surveillance quality for the POIs can be further improved by adjusting the sensing radius of some sensors from space dimension to time dimension. The experimental results show that the proposed mechanism outperforms the existing mechanisms in terms of the worst surveillance quality and the quality of monitoring.
關鍵字 Target coverage;probabilistic sensing model;scheduling;wireless rechargeable sensor networks
語言 en
ISSN 1558-1748; 1530-437X
期刊性質 國外
收錄於 SCI
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/987654321/124048 )

SDGS 尊嚴就業與經濟發展,產業創新與基礎設施