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Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Enhancing Received Signal Strength-Based Localization through Coverage Hole Detection and Recovery. / Zhai, Shuangjiao; Tang, Zhanyong; Wang, Dajin et al.
In: Sensors, Vol. 18, No. 7, 2075, 2018.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Enhancing Received Signal Strength-Based Localization through Coverage Hole Detection and Recovery
AU - Zhai, Shuangjiao
AU - Tang, Zhanyong
AU - Wang, Dajin
AU - Li, Qingpei
AU - Li, Zhanglei
AU - Chen, Xiaojiang
AU - Fang, Dingyi
AU - Chen, Feng
AU - Wang, Zheng
PY - 2018
Y1 - 2018
N2 - In wireless sensor networks (WSNs), Radio Signal Strength Indicator (RSSI)-basedlocalization techniques have been widely used in various applications, such as intrusion detection, battlefield surveillance, and animal monitoring. One fundamental performance measure in those applications is the sensing coverage of WSNs. Insufficient coverage will significantly reduce the effectiveness of the applications. However, most existing studies on coverage assume that thesensing range of a sensor node is a disk, and the disk coverage model is too simplistic for many localization techniques. Moreover, there are some localization techniques of WSNs whose coverage model is non-disk, such as RSSI-based localization techniques. In this paper, we focus on detecting and recovering coverage holes of WSNs to enhance RSSI-based localization techniques whose coverage model is an ellipse. We propose an algorithm inspired by Voronoi tessellation and Delaunay triangulation to detect and recover coverage holes. Simulation results show that our algorithm can recover all holes and can reach any set coverage rate, up to 100% coverage.
AB - In wireless sensor networks (WSNs), Radio Signal Strength Indicator (RSSI)-basedlocalization techniques have been widely used in various applications, such as intrusion detection, battlefield surveillance, and animal monitoring. One fundamental performance measure in those applications is the sensing coverage of WSNs. Insufficient coverage will significantly reduce the effectiveness of the applications. However, most existing studies on coverage assume that thesensing range of a sensor node is a disk, and the disk coverage model is too simplistic for many localization techniques. Moreover, there are some localization techniques of WSNs whose coverage model is non-disk, such as RSSI-based localization techniques. In this paper, we focus on detecting and recovering coverage holes of WSNs to enhance RSSI-based localization techniques whose coverage model is an ellipse. We propose an algorithm inspired by Voronoi tessellation and Delaunay triangulation to detect and recover coverage holes. Simulation results show that our algorithm can recover all holes and can reach any set coverage rate, up to 100% coverage.
KW - wireless sensor networks
KW - RSSI-based localization
KW - coverage holes
KW - Voronoi tessellation
KW - Delaunay triangulation
U2 - 10.3390/s18072075
DO - 10.3390/s18072075
M3 - Journal article
VL - 18
JO - Sensors
JF - Sensors
SN - 1424-8220
IS - 7
M1 - 2075
ER -