流量分析即通过监测通信方以及传输的数据量来收集关于消息或协议的信息。
Traffic analysis attacks attempt to glean information about a message or protocol by observing which parties are talking to whom, and in some cases how much data is being transferred.
通过定量分析传感器节点的通信能量消耗，建立了聚类首领剩余能量与通信流量的关系模型。
Through analyzing communication energy dissipation of wireless sensor nodes quantitatively, the relational model of cluster heads' residual energy and communication traffic was established.
常用的加密、签名技术仅可以保障通信内容本身的秘密性，不能抵抗流量分析攻击。
Commonly used encryption and signature technology can only protect their communications secrets, but can not resist flow attacks.
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