Method for calculating wireless sensor network credit value based on unreliable channel

The invention relates to a trust value calculation method for wireless sensor network based on unreliable channel and trusted management scheme, especially for unreliable channel condition as high packet loss and severe hidden nodes. The method proposes a trust structure HRFSN based on Heider's balance theory and public nodes of interacted two parties directly participates in observation activity for observing the nodes to optimize direct trust value calculation under unreliable channel so as to increase reliability of trust value. The method changes direct trust value observation style and calculation method of trust management scheme of known wireless sensor network, can acquire more accurate direct trust value and further more reliable trust value. The method, with relatively high scientificity and higher application value, can provide more accurate trust foundation during cooperation of sensor node.