Current Proceedings on Technology

Yazarlar: Abdesselem Beghriche, Azeddine Bilami

Konular:-

Anahtar Kelimeler:Ad hoc networks,Security,Routing,Trust model,Trust management,Fuzzy logic,Reputation

Özet: Designing a trusted and secure routing solution in an untrustworthy scenario is always a challenging problem. Lack of physical security and low trust levels among nodes in an ad hoc network demands a secure end-to-end route free of any malicious entity. This is particularly challenging when malicious nodes collude with one another to disrupt the network operation. To enhance the security of MANETs, it is important to rate the trustworthiness of other nodes without central authorities to build up a trust environment. This paper expands on relevant fuzzy logic concepts to propose an approach to establish quantifiable trust levels between the nodes of ad hoc networks. The proposed solution defines additional operators to fuzzy logic in order to find an end-to-end route which is free of malicious nodes with collaborative effort from the neighbors. In our scheme (AFIM), the path with more trusted decision value is selected as a secure route from source to destination. In order to prove the applicability of the proposed solution, we demonstrate the performance of our model through NS-2 simulations.

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