Traffic and Quality Characterization of Scalable Encoded Video : A Large – Scale Trace – Based Study Part 1 : Overview and Definitions ∗ †

The Internet of the future and next generation wireless systems are expected to carry to a large extend video of heterogeneous quality and video that is scalable encoded (into multiple layers). However, due to a lack of long traces of heterogeneous and scalable encoded video, most video networking studies are currently conducted with traces of single layer (non–scalable) encoded video. In this technical report we present a publicly available library of traces of heterogeneous and scalable encoded video. The traces have been generated from over 15 videos of one hour each, which have been encoded into two layers using the temporal scalability and spatial scalability modes of MPEG–4. We provide both the frame sizes as well as the frame qualities (PSNR values) in the traces. In the forthcoming Parts 2, 3, and 4 of this technical report we study the statistical characteristics of the traces, including their long–range–dependence and multi–fractal properties.

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