基于分形的多尺度网络性能影响因素研究

Research on factors influencing the performances of multi-scale network traffic based on fractal

最近大量研究表明,实际业务流普遍存在尺度特性,针对小尺度下的多重分形特征,首先基于单分形去研究多尺度的业务流性能,同时结合小波变换进行分形刻画,深入的分析影响业务流性能的因素,发现了与传统结论不同之处:并非业务流的相关性越大性能就越差,而是与具体的网络环境(如缓冲区、利用率大小等)存在较大联系.通过对大量实际业务流进行统计分析,验证了结论的正确性.

Recently many studies have shown that the real network traffic has commonly the scale characteristics. With the multi-fractal in small scale, it takes measure of researching on the multi-scale performance of traffic based on theoretical analysis of mono-scale and depicting the scale characteristics based on wavelet transform, and studies deeply the influence factors of traffic performance. The results are quite difference from the tradition conclusion., not the lager the correlation, not the worse the performance, but it has much relation on the network environment （such as buffer size, utilization and so on）. And it verifies the correction of conclusion by statistical charting a lot of real traffic.