A Proposal of Cooperative Malicious Behavior Node Isolation Mechanism forWireless Sensor Networks

概要

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In wireless sensor networks, due to fault and malicious behaviors of network entities, the sensor data collected might be not accurate. Therefore, it is crucial to effectively detect and isolate malicious network entities from the network. Some studies have been demonstrated that rating trust and reputation of individual network entities is an effective approach in wireless sensor networks to improve security, support decision-making process and promote collaboration between network entities. However, trust management systems are prone to the attacks from inside of the network. Insider attacks like selective forwarding and bad-mouthing can significantly deteriorate the trust management systems and results inaccurate trust evaluation of network entities. In this work, based on wireless overhearing mechanism we propose a novel approach which can effectively detect and isolate malicious network entities from the wireless sensor networks. Simulation results shows that, compare to other malicious node detection schemes, the proposed CMBNI scheme detects and isolates the malicious nodes from the network with more than 50% faster speed. In addition, even with 20% malicious nodes in the network, CMBNI scheme can successfully derlivery all messages sent by sensor nodes to the sink node.
2013-09-04