A New Node Role-Based Reputation Model in Hierarchical Ad Hoc Networks

In this paper, we propose a new Dynamic Reputation Evaluation Model (DREM) to meet the requirement of characteristics and security in hierarchical Ad Hoc networks. In this model, the reputation relationship is defined with the consideration of related node roles and functions, and the reputation evaluation mechanism is built based on the correlation among nodes to evaluate and update the reputation information of nodes with different roles. Simulation results show that, compared with traditional reputation evaluation models, the proposed model in this paper can more timely and accurately reflect the security status in hierarchical Ad Hoc networks.