Distributed Intrusion Detection System for Wireless Sensor Networks

Abstract

Wireless sensor networks are exposed to different types of security threats that can reduce the performance of the whole network; that might result in serious problems like denial of service attacks, routing attacks, Sybil attack etc. Defensive mechanisms like Key management protocols, authentication protocols and secure routing cannot provide security to WSNs for these types of attacks. Intrusion detection system is a solution to this problem. It analyses the network by collecting sufficient amount of data and detects anomalous behaviour of sensor node. IDS based security mechanisms suggested for other network models such as ad hoc networks, cannot directly be used in WSNs. Researchers have proposed various intrusion detection systems for wireless sensor networks during the last few years. Essentially these approaches can be classified into two main categories i.e. distributed and stand alone. Distributed IDS can be further classified into hierarchical, mobile agent based and hybrid IDS. This paper presents distributed intrusion detection system for wireless sensor networks.