Trust and Reputation Based Collaborating Computing in Wireless Sensor Networks

Due to its ad hoc, infrastructure-less self-configuring and collaborating nature, wireless sensor networks (WSNs) are very much vulnerable to different security threats. The goal-oriented nature of many sensing applications results in collaboration. In fact, collaboration helps to improve WSNs efficiency as well as the data-centric behavior of WSNs. Collaboration along with its advantages like efficient packet routing and data forwarding, jamming prevention etc. brings in some security issues which mostly need to be addressed from the trust and reputation analysis of the network. In this paper, a trust and reputation based collaborating computing model is derived which effectively eliminates the malicious behavior of rogue nodes with high probability. The detection of malicious nodes along with trust and reputation analysis of WSN makes this model very much robust and secure. Efficacy of this model is shown through simulation results.