Study on Trust Management-Based Cluster-Head Selection in Wireless Sensor Networks

WSN (Wireless Sensor Networks) is a distributed sensor network, with its ends being the sensors able to sense and detect the external world. As the sensors in the WSN communicate in a wireless way, network setting is flexible and equipment location is uncertain. A wireless sensor network system typically includes end device, sink node and coordinator. The routing protocol in a wireless sensor network realizes information transmission by seeking the optimal path between the source node and the target node and its primary design goal is to improve the safety and reliability of the entire network. This paper focuses on the communication mode realized through cluster - head node selection based on the trust management mechanism introduced into the hierarchical routing protocol, and through MATLAB simulation test, the performance of use of trust management technology to select cluster-head nodes for communication transmission is made.