Wireless sensor network traffic abnormality detection method based on ARIMA model
A wireless sensor and network traffic technology, applied in the field of network security, can solve the problems of unbalanced wireless sensor network traffic, inability to detect abnormality, low detection accuracy, etc., to ensure the latest effectiveness, easy traffic abnormality, and accurate sexual effect
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[0041] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0042] The flow chart of the method for abnormal detection of wireless sensor network traffic based on the ARIMA model in the present invention is as follows figure 1 As shown, the following uses as figure 2 The shown wireless sensor network traffic data containing abnormal traffic is used to verify the method, which specifically includes the following steps:
[0043] S1: Select a sliding window whose size is Wind.
[0044] The selection of Wind value should be as small as possible under the premise of ensuring the modeling accuracy, so as to reduce the complexity of the algorithm. In this embodiment, the minimum modeling length according to the ARIMA model is 10, and the actual measurement effect is the best when Wind=15, so this embodiment sets Wind=15, including the flow data of the current moment and the previous 14 historical moments. Using ...
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