Abstract:

Resisting attacks and evaluating the reputation values of nodes are important parts of trusted MANET(Mobile Adhoc Network), so it is necessary to establish an effective trust system. In order to solve the problems of overload and credibility of monitoring information in the network, etc., this paper proposes a node-hierarchical reputation management system that collects monitoring information and calculates the reputation values of nodes by selecting special nodes as management nodes. The management nodes communicate with each other by multicast. The model can effectively identify malicious information, improve the credibility of monitoring information, and solve the problem of information collection in the network. At the same time, management nodes can coordinate with each other to effectively detect and resist various attacks. Simulation results demonstrate the effectiveness of the model.

Key words: mobile adhoc network, reputation management system, multicast, attack