Scaling behaviors of network traffic influence network modeling, service providing and traffic engineering. So it has been the focus of many researches. In order to understand the causes of small-time scaling phenomena, an extensive wavelet analysis was performed to TCP flows. The results show that for a majority of the traces, the second-order scaling indices at small-time scales (1-100ms) are fairly close to 0.5. It indicates that traffic fluctuations at these time scales are nearly uncorrelated. In addit...