中文摘要：

为解决机会网络中节点自私行为导致网络性能下降的问题,提出节点激励的思想。针对Reputation机制中缺乏对高信誉值节点的奖励,以及Credit机制中静止的虚拟银行部署困难,交易价格无区分性等导致的激励效果不佳的问题,提出一种混合激励机制。采用货币支付模式,通过计算节点自私度和链接度,对不同服务主体、不同服务质量以及不同服务对象区别定价,激励自私节点参与协作。仿真结果表明,该机制提高了消息交付率,减少了平均延迟,提高了激励机制的公平性。

英文摘要：

To deal with the problem of the degraded network performance resulting from the selfish behavior of nodes in oppor-tunistic networks,an idea of nodes incentive mechanism was proposed.Aiming at the questions including the lack of encouraging nodes with the high reputation value in Reputation,the Virtual Bank’s （VB）deploying difficultly and the uniform transaction price in Credit,a hybrid incentive mechanism was proposed.A money payment pattern was introduced,and the mechanism prices were set distinguishingly for different individuals,services and objects by calculating the selfishness degree and link de-gree,stimulating the selfish nodes to participate in cooperation.The simulation results show that the mechanism improves the message delivery rate,and reduces the average delay.And it improves the fairness of the incentive mechanism.