Temporal Data-Driven Sleep Scheduling and Spatial Data-Driven Anomaly Detection for Clustered Wireless Sensor Networks.
The spatial-temporal correlation is an important feature of sensor data in wireless sensor networks (WSNs). Most of the existing works based on the spatial-temporal correlation can be divided into two parts: redundancy reduction and anomaly detection. These two parts are pursued separately in existing works. In this work, the combination of temporal data-driven sleep scheduling (TDSS) and spatial data-driven anomaly detection is proposed, where TDSS can reduce data redundancy. The TDSS model is inspired by transmission control protocol (TCP) congestion control. Based on long and linear cluster structure in the tunnel monitoring system, cooperative TDSS and spatial data-driven anomaly detection are then proposed. To realize synchronous acquisition in the same ring for analyzing the situation of every ring, TDSS is implemented in a cooperative way in the cluster. To keep the precision of sensor data, spatial data-driven anomaly detection based on the spatial correlation and Kriging method is realized to generate an anomaly indicator. The experiment results show that cooperative TDSS can realize non-uniform sensing effectively to reduce the energy consumption. In addition, spatial data-driven anomaly detection is quite significant for maintaining and improving the precision of sensor data.
School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China. 1310482@tongji.edu.cn.
Gang
G
Li
School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China. hebin@tongji.edu.cn.
Bin
B
He
Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China. huanghw@tongji.edu.cn.
Hongwei
H
Huang
School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China. 1333700@tongji.edu.cn.
Limin
L
Tang
WSN; data-driven anomaly detection; data-driven sleep scheduling; spatial–temporal correlation
Sensors (Basel). 2015 Sep 16;15(9):23376-401
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