Applying an Intrusion Detection Algorithm to Wireless Sensor Networks

Although static sensor nodes have low computation and communication capabilities, they have specific properties, and can acquire stable neighboring nodes' information, which can be used for detection of anomalies in networking and behaviors of the neighbor nodes, thus providing security for Wireless sensor networks. In many attacks against sensor networks, the first step for an attacker is to impersonate itself as a legitimate node within the network. To make a sensor node capable of detecting an intruder, a simple dynamic statistical model of the neighboring nodes is needed to build, together with a low-complexity detection algorithm to monitor received packet power levels. A detection algorithm based on security scheme for Wireless sensor networks is introduced in this paper.