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In wireless sensor networks, how to detect the malicious nodes and prevent them from attacking the normal nodes has become one of the most important issues. This paper introduces a new mechanism in which the sensor nodes collaborate with each other to resist denial of service (DoS) attack and protect the being attacked nodes. A reputation-based incentive model for cooperation is also proposed. Simulation...
In mobile ad hoc networks (MANETs), a source node must rely on other nodes to forward its packets on multi-hop routes to the destination. Therefore,the cooperation of nodes is very important. With lack of a prior trust relationship, misbehavior caused by selfishness or malice may severely degrade the performance of the network. The cooperative security schemes offer a reasonable effective solution...
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