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本发明提供一种无线传感器网络的便携电脑级恶意节点的检测与容忍方法,不同于传统的多路由方法和信任模型的思路,本发明利用网关节点采集提取传感器网络中无线信号的射频指纹,通过分析比较传感器网络的节点布设之前的射频指纹与传感器节点进入工作状态下的射频指纹之间的差异找到便携电脑级恶意节点;因为各射频模块产生信号的射频指纹存在明显差异性并且不可复制,所以利用射频指纹进行便携电脑级恶意节点的检测与容忍具有一定先进性和有效性,为无线传感器网络的安全通信提供了新思路。
The present invention provides a method for detecting and tolerating a portable computer-level malicious node in a wireless sensor network. Different from the traditional multi-routing method and trust model, the present invention utilizes a gateway node to collect and extract radio frequency fingerprints of wireless signals in a sensor network, The differences between the RF fingerprints laid before the nodes of the sensor network and the RF fingerprints of the sensor nodes entering the working state are analyzed and compared to find the PC-level malicious nodes. Because the RF fingerprints of the signals generated by the RF modules are obviously different and can not be copied, The use of radio frequency fingerprints to detect and tolerate portable computer-class malicious nodes has some advanced features and validity, providing a new idea for secure communication in wireless sensor networks.