为提高无线传感器网络安全评估准确性、灵敏性,将安全态势感知的概念引入无线传感器网络安全研究,采用集对分析理论对无线传感器网络安全态势进行评估,用安全态势值判断无线传感器网络受到安全威胁的强弱。实验中使用KDD Cup 1999数据...为提高无线传感器网络安全评估准确性、灵敏性,将安全态势感知的概念引入无线传感器网络安全研究,采用集对分析理论对无线传感器网络安全态势进行评估,用安全态势值判断无线传感器网络受到安全威胁的强弱。实验中使用KDD Cup 1999数据集模拟无线传感器网络攻击,通过改变网络中受攻击节点数量模拟不同强度的网络攻击,并在11种不同的攻击强度下分析安全态势值变化情况。实验结果表明,该模型可以提高无线传感器网络安全评估的准确性,与传统基于安全熵法的评估模型相比,本文提出的方法对中低强度的攻击灵敏度更高,攻击效果区分更加明显,并可根据安全态势值对网络安全态势进行分级。展开更多
In order to diagnose the working status of each module on sensor node and make sure the wireless sensor networks （WSN） work properly, the components of sensor node and their working characteristics are studied. An o...In order to diagnose the working status of each module on sensor node and make sure the wireless sensor networks （WSN） work properly, the components of sensor node and their working characteristics are studied. An on-line fault self-diagnosis method for sensor node is proposed. First, a flexible fault sensing circuit is designed as a state detection module on sensor node. Second, a self- diagnosis algorithm is proposed based on the hardware design and the failure analysis on sensor node. Finally, in order to ensure the WSN reliability, the voltage changes of each module working statuses can be observed using the state detection module and the faulty module will be found out timely. The experimental results show that this self-diagnosis method is suitable to sensor nodes in WSN.展开更多
文摘为提高无线传感器网络安全评估准确性、灵敏性,将安全态势感知的概念引入无线传感器网络安全研究,采用集对分析理论对无线传感器网络安全态势进行评估,用安全态势值判断无线传感器网络受到安全威胁的强弱。实验中使用KDD Cup 1999数据集模拟无线传感器网络攻击,通过改变网络中受攻击节点数量模拟不同强度的网络攻击,并在11种不同的攻击强度下分析安全态势值变化情况。实验结果表明,该模型可以提高无线传感器网络安全评估的准确性,与传统基于安全熵法的评估模型相比,本文提出的方法对中低强度的攻击灵敏度更高,攻击效果区分更加明显,并可根据安全态势值对网络安全态势进行分级。
基金Supported by the Basic Research Foundation of Beijing Institute of Technology(200705422009)
文摘In order to diagnose the working status of each module on sensor node and make sure the wireless sensor networks （WSN） work properly, the components of sensor node and their working characteristics are studied. An on-line fault self-diagnosis method for sensor node is proposed. First, a flexible fault sensing circuit is designed as a state detection module on sensor node. Second, a self- diagnosis algorithm is proposed based on the hardware design and the failure analysis on sensor node. Finally, in order to ensure the WSN reliability, the voltage changes of each module working statuses can be observed using the state detection module and the faulty module will be found out timely. The experimental results show that this self-diagnosis method is suitable to sensor nodes in WSN.
