Trust Management Model for Mobile Ad Hoc Network Based on Analytic Hierarchy Process and Fuzzy Theory

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Owing to the openness in network topology and the absence of centralized administration in management, Mobile Ad hoc NETwork (MANET) is vulnerable to attacks from malicious nodes. In order to decrease the hazards from these malicious nodes, the authors incorporate the concept of trust into the MANET, and build a trust management model which is divided into two parts: subjective trust evaluation model and trusted routing model. In subjective trust evaluation model, the credibility of nodes can be evaluated using analytic hierarchy process theory and fuzzy logic rules prediction method.