Multifractal analysis and model of the MPEG-4 video traffic

MPEG-4 encoded video is expected to account for a large portion of the traffic in future wireline and wireless networks. But there are only few studies that evaluate networking protocols and resource management schemes with such new object-based encoded video. In this paper, we explore the viability of multifractal analysis in modeling the MPEG-4 video traffic. First, we prove that the MPEG-4 video traffic exhibit the multifractal characteristic through multifractal formalism and spectra analysis. Then we apply the multifractal wavelet model to the MPEG-4 video traffic analysis and synthesis. This model uses the Haar wavelet transform and puts a constraint on the wavelet coefficients to guarantee positivity, which results in a swift O(N) algorithm to synthesize N-point data sets. The statistical numeric results and fit procedure show this model's flexibility and accuracy in the MPEG-4 video modelling.