基于重复博弈的WSN节点合作性研究

Cooperative research of WSN nodes based on repeated game theory

将博弈论引入节点行为的决断中,在网络中建立1个基于节点数据传输可靠度的重复博弈模型。针对节点的行为引入最优惩罚程度的惩罚机制,在保证对自私节点产生足够震慑的同时,又避免对自私节点过度惩罚而造成节点的提早死亡,从而提升网络数据传输的整体效益。研究结果表明:采取最优惩罚轮数的惩罚策略能够在保证最少的减小网络生命周期的前提下,最大程度地提升网络的整体效益约22.83%。

A repeated game model of the reliability of data transmission was proposed based on the hierarchical routing protocol. A punishment mechanism model in the game was introduced and the degree of punishment mechanism was demonstrated, which not only ensured the selfish node cooperation but also avoided the premature death of selfish nodes subjected to excessive punishment. The results show that the penalty strategy with the optimal penalty round can guarantee the minimum reduction of the network life cycle. The efficiency of the network can be improved by the penalty strategy with the optimal penalty round about 22.83%.