Li, Xiaoming, Xu, Guangquan, Zheng, Xi, Liang, Kaitai, Panaousis, Emmanouil ORCID: https://orcid.org/0000-0001-7306-4062, Li, Tao, Wang, Wei and Shen, Chao (2019) Using sparse representation to detect anomalies in complex WSNs. ACM Transactions on Intelligent Systems and Technology, 10 (6):64. ISSN 2157-6904 (Print), 2157-6912 (Online) (doi:10.1145/3331147)

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Abstract

In recent years, wireless sensor networks (WSNs) have become an active area of research for monitoring physical and environmental conditions. Due to the interdependence of sensors, a functional anomaly in one sensor can cause a functional anomaly in another sensor, which can further lead to the malfunctioning of the entire sensor network. Existing research work has analysed faulty sensor anomalies, but fails to show the effectiveness throughout the entire interdependent network system. In this paper, a dictionary learning algorithm based on a non-negative constraint is developed, and a sparse representation anomaly node detection method for sensor networks is proposed based on the dictionary learning. Through experiment on a specific thermal power plant in China, we verify the robustness of our proposed method in detecting abnormal nodes against four state of the art approaches and proved our method is more robust. Furthermore, the experiments are conducted on the obtained abnormal nodes to prove the interdependence of multi-layer sensor networks and reveal the conditions and causes of a system crash.

Item Type:	Article
Uncontrolled Keywords:	wireless sensor networks, anomaly detection
Subjects:	Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science > Internet of Things and Security Research Centre (ISEC) Faculty of Engineering & Science > School of Computing & Mathematical Sciences (CMS) Faculty of Engineering & Science
Last Modified:	04 Mar 2022 13:06
URI:	http://gala.gre.ac.uk/id/eprint/24437

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