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Most existing trust-based security schemes for mobile ad-hoc networks (MANETs) consider packet loss an indicator of possible attacks by malicious nodes. There may be several reasons for packet losses, such as interference, queue overflow, and node mobility. Identifying the real underlying cause of a packet loss event is important for any security solution. To detect truly malicious nodes, it is necessary...
To detect and isolate the misbehaving nodes in MANETs, reputation-based security schemes have been developed. These schemes either utilize only first-hand (direct) information or both first-hand and second-hand (direct) information, to compute the trustworthiness of nodes. Both of the aforementioned categories have their own strengths and weaknesses under different network conditions and scenarios...
Cooperation among nodes is mandatory for smooth operation of Mobile Ad Hoc Networks (MANETs) in terms of data routing. A participating node may refuse to deplete its resources for the benefit of others because of not getting any direct advantage for its service. Nodes showing such behavior are called selfish or non-cooperative nodes. Non-cooperative nodes can severely affect the performance of MANETs...
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