一种基于确定性理论的无线传感器网络信任机制nTRUST  

nTRUST—A New Trust Scheme Based on Certainty Theory in Wireless Sensor Networks

作　　者：潘巨龙[1] 高建桥[1] 徐展翼[1] 李文锦[1] 李子印[2] 

机构地区：[1]中国计量学院信息工程学院,杭州310018 [2]中国计量学院光学工程学院,杭州310018

出　　处：《传感技术学报》2012年第2期240-245,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61007012)

摘　　要：信任机制作为一种安全保护机制,目前在无线传感器网络安全中有着显著效果并得到广泛应用。基于不确定性推理中的确定性理论,提出了一种新的无线传感器网络信任模型――nTRUST,该模型采用综合信任值作为评价节点信任依据,相关实验证实了nTRUST的有效性和可行性。同时,在nTRUST信任机制作用下,进一步考虑节点剩余能量,通过实验取得较好效果,改进后的模型可以达到均衡网络内节点能量消耗和延长整个网络生存周期目的。As a safety protection scheme,trust scheme has significant effects and it has been widely used in the wireless sensor networks security.In this paper,we propose a new trust model named as nTRUST which based on Certainty Theory in uncertainty reasoning.An integrated trust value is computed to decide a node that is reliable or malicious.Some related experiments are testified with effectiveness and feasibility of nTRUST.In addition,under the work of this new trust scheme,we further consider the residual energy of the nodes.The simulation results also show that the modified nTRUST with residual energy can balance the node ＇ s energy consumption and prolong the whole network lifetime.

关 键 词：无线传感器网络 安全 信任机制 确定性理论 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]