WIRELESS SENSOR NETWORK AND ADAPTIVE METHOD FOR MONITORING THE SECURITY THEREOF

摘要

A wireless sensor network and an adaptive method for security management thereof are provided to enable a sensor node to evaluate and monitor the reliability management of adjacent sensor nodes without a waste of insufficient resources. A wireless sensor network includes a BS(Base Station) and plural sensor nodes for relaying information to the BS. The plural sensor nodes includes first second, and third sensor nodes which are arranged adjacently each other. The first sensor node includes a wireless transmission unit(170), a reliability evaluation unit(140), and a security response unit. The wireless transmission unit transmits a message to the BS. The reliability evaluation unit determines the reliability value of the third sensor node. The security response unit compares the reliability value of the third sensor node with a reliability threshold value. The reliability evaluation unit determines the reliability value based on the personal reference of the first sensor node for the third sensor node and the personal reference of the second sensor node for the third sensor node.