A trusted metric-based security protection scheme for wireless sensor networks

With the development of wireless communication technology and sensor technology, wireless sensor networks are widely used in various fields such as industry, agriculture, medical care, etc., and have become an important part of building smart city networks. However, due to the openness, distribution, and resource constraints of wireless sensor networks, this network is more likely to become a target of attack. In this paper, based on the idea of trustworthiness metrics, we screen and isolate malicious nodes in the network by measuring and determining the static, dynamic, and transmission effectiveness of the nodes. Experimental validation shows that this scheme can exclude malicious nodes to a certain extent to ensure the security and trustworthiness of other nodes in the network.