摘要: 传统的非线性模型已经不再适用 于网络流量建模,为了能够更精确地对网络流量建模,必须考虑到网络流量的特性。针对网络流量的自相似、长度分布、周期等特征进行分析,结合小波变换与时间序列模型,有效地建立流量预测模型。首先对流量的自相似和平稳性进行分析,并对长度、周期等特征进行描述,其次根据实际流量的自相似性和平稳性选择小波变换与时间序列相结合的方法进行建模,产生预测结果,最后根据长度与周期特征粗略判断预测的合理性。根据实验验证与分析,该方法具有极大的灵活性,相比单一的小波-FARIMA模型可以减少大量的运算,同时能够描述网络流量的短相关与长相关特性。
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