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Mitigating denial-of-service attacks in MANET by distributed packet filtering: a game-theoretic approach

Mitigating denial-of-service attacks in MANET by distributed packet filtering: a game-theoretic approach,10.1145/1229285.1229329,Xiaoxin Wu,David K. Y

Mitigating denial-of-service attacks in MANET by distributed packet filtering: a game-theoretic approach   (Citations: 7)
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Defending against denial-of-service (DoS) in a mobile ad hoc network (MANET) is challenging because the network topology is dynamic and nodes are selflsh. In this paper, we propose a DoS mitigation technique that uses digital signa- tures to verify legitimate packets, and drop packets that do not pass the veriflcation. Since nodes are selflsh, they may not perform the veriflcation so that they can avoid paying the overhead. A bad packet that escapes veriflcation along the whole network path will bring a penalty to all its for- warders. A network game can be formulated in which nodes along a network path, in optimizing their own beneflts, are encouraged to act collectively to fllter out bad packets. An- alytical results show that Nash equilibrium can be attained for players in the proposed game, in which signiflcant ben- eflts can be provided to forwarders such that many of the bad packets will be eliminated by veriflcation.
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