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DOI:
Journal of Software:2008.19(1):116-124

无线网状网基于不确定性度量极小化信任模型
丁旭阳,范明钰,朱大勇,王佳昊
(电子科技大学 计算机科学与工程学院 信息安全研究中心,四川 成都 610054)
Trust Model Based on Minimal Uncertainty Metric in Wireless Mesh Network
DING Xu-Yang,FAN Ming-Yu,ZHU Da-Yong,WANG Jia-Hao
()
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Received:May 17, 2006    Revised:November 30, 2006
> 中文摘要: WMN(wireless mesh network)网络环境中,网络拓扑结构的改变或无线冲突的发生,都可能导致作为信任值评估证据的样本空间不一定完整和可靠,使得现有的信任评估模型不能应用其上.为了解决WMN网络节点间信任评估问题和建立信任关系,在研究现有信任模型并分析其存在问题的基础上,提出了基于不确定性度量极小化的信任模型.模型引入可信任度因子,根据网络实际情况,弱化证据样本空间不一定完整和可靠对信任值评估的影响,使得信任评估值的修正量在全局范围内达到最小.仿真实验与基于证据理论的信任评估模型进行了对比
Abstract:In wireless mesh networks, the sample space of evidence may be not integrative or reliable because of the change of network topology and the occurrence of wireless collision. It makes the existing trust evaluation models inapplicable. To evaluate trust values of nodes and establish trust relationship in nodes, a trust model is proposed on the basis of the analyses of the existing trust models and the minimal principle of uncertainty metric. The model reduces the influence of the non-integrated and unreliable sample space through importing a credible parameter. According to the real situation of networks, the model can minimize the amendment of evaluation values in the whole scope. Contrasted with the evidence-based trust model, the simulation results show that the proposed model is effective.
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基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.60673142, 60473090 (国家自然科学基金) Supported by the National Natural Science Foundation of China under Grant Nos.60673142, 60473090 (国家自然科学基金)
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丁旭阳,范明钰,朱大勇,王佳昊.无线网状网基于不确定性度量极小化信任模型.软件学报,2008,19(1):116-124

DING Xu-Yang,FAN Ming-Yu,ZHU Da-Yong,WANG Jia-Hao.Trust Model Based on Minimal Uncertainty Metric in Wireless Mesh Network.Journal of Software,2008,19(1):116-124