A Trust Model for UWSNs Based on Fuzzy System with Adaptive Membership Function

Trust model for underwater wireless sensor networks (UWSNs) with fixed parameters cannot provide differentiated trust evaluations. To prioritize the protection of the node in critical areas, a trust model based on fuzzy system with adaptive membership function is proposed in this paper. The proposed trust model mainly consists of three types of trust value, which are communication trust, data trust and energy trust. Security factors are defined to evaluate the threat to the network when a node launches attack. Simulation results demonstrate the effectiveness of the proposed trust model and its ability to quickly react to malicious behavior in critical areas.