Intrusion Detection In Wireless Sensor Networks: A Survey

Since security threats to WSNs are increasingly being diversified and deliberate, preventionbased techniques alone can no longer provide WSNs with adequate security. However, detectionbased techniques might be effective in collaboration with prevention-based techniques for securing WSNs. As a significant branch of detection-based techniques, the research of intrusion detection in wired networks and wireless ad hoc networks is already quite mature, but such solutions can be rarely applied to WSNs without any change, because WSNs are characterized by constrained resources, such as limited energy, weak computation capability, poor memory, short communication range, etc. The development of intrusion detection techniques suitable for WSNs is therefore regarded as an essential research area, which will enable WSNs to be much more secure and reliable. In this survey, a few of the key design principles relating to the development of intrusion detection techniques in WSNs are discussed and detection technique categories (statistical techniques, rule based, data mining, computational intelligence, game theory, graph based, and hybrid, etc.).