A Game Control Scheme Based on Prediction of Trust and Service for Wireless Access Service

Selfish mobile nodes not only do not forward other nodes’ packets without payoff, but also have an incentive to occupy more system resources. Therefore, a game control scheme based on prediction of trust and requested service is proposed in this paper. The future levels for trust and requested service under the given attribute conditions are predicted in the scheme based on the current trust grade and service level. Based on the above, acceptance probability and decision-making condition are presented. Upon receiving a request from a mobile node, if a wireless access point decides to deal with it based on the acceptance probability, the mobile node’s future levels of trust and requested service are predicted by using Bayesian network model. By using the predicted values, the acceptance probability, and the mobile node’s cheat probability that is calculated by the system according to history records of the client’s paying for access services, the wireless access point makes a decision whether to respond the mobile node’s request or reject it. The exhibited example and the simulation results show that the scheme has the favorable incentive effect and service response capacity to clients, and its game cost is smaller than that of the existing works.