中国科技论文
中國科技論文
중국과기논문
China Sciencepaper
2015年
20期
2351-2355,2368
,共6页
无线传感器网络%安全%异常检测%最小计数概要%Kullback-Leibler 距离
無線傳感器網絡%安全%異常檢測%最小計數概要%Kullback-Leibler 距離
무선전감기망락%안전%이상검측%최소계수개요%Kullback-Leibler 거리
wireless sensor network%security%anomaly detection%count-min sketch%Kullback-Leibler divergence
针对层次结构的无线传感器网络，提出了一种基于最小计数概要的异常检测方案。首先，将整个无线传感器网络划分成多个簇，使得簇内每个传感器节点位置临近且具有相似的感知数据；其次，由簇头节点收集成员节点感知数据的最小计数概要，并以 Kullback-Leibler 距离的方式与自身的最小计数概要进行匹配，从而识别异常节点。实验结果表明，与现有异常检测方案相比，所提出的方案具有较高的检测精度和较低的误报率，并且所需存储空间和传输能量消耗较低。
針對層次結構的無線傳感器網絡，提齣瞭一種基于最小計數概要的異常檢測方案。首先，將整箇無線傳感器網絡劃分成多箇簇，使得簇內每箇傳感器節點位置臨近且具有相似的感知數據；其次，由簇頭節點收集成員節點感知數據的最小計數概要，併以 Kullback-Leibler 距離的方式與自身的最小計數概要進行匹配，從而識彆異常節點。實驗結果錶明，與現有異常檢測方案相比，所提齣的方案具有較高的檢測精度和較低的誤報率，併且所需存儲空間和傳輸能量消耗較低。
침대층차결구적무선전감기망락，제출료일충기우최소계수개요적이상검측방안。수선，장정개무선전감기망락화분성다개족，사득족내매개전감기절점위치림근차구유상사적감지수거；기차，유족두절점수집성원절점감지수거적최소계수개요，병이 Kullback-Leibler 거리적방식여자신적최소계수개요진행필배，종이식별이상절점。실험결과표명，여현유이상검측방안상비，소제출적방안구유교고적검측정도화교저적오보솔，병차소수존저공간화전수능량소모교저。
A count-min sketch based anomaly detection scheme is proposed,which is suited to hierarchical wireless sensor net-works.In the proposed scheme,we first partition the whole sensor network into several clusters in which the cluster members are physically adjacent and data-correlated.Then,in the cluster head,the count-min sketches are collected from each cluster member and compared with its own count-min sketch in the form of Kullback-Leibler divergence.We show through experiments that the proposed scheme has a higher detection accuracy ratio and a lower false alarm ratio than the existed anomaly detection schemes. Meanwhile,it requires less storage space and consumes less energy than the non-sketch based anomaly detection scheme.
