Models and tools for simulation of video transmission on wireless networks

Robust transmission of video is a dominant requirement of future applications over wireless networks. MPEG-4 is an object based video encoding technique which is suitable for wireless applications due to its high compression performance, scalable video coding techniques, error-resilient capability and object-based coding functionalities. In this paper, we first model traces of MPEG-4 traffic. Based on these models, we develop tools for MPEG-4 traffic generation. These tools have an adaptive rate control-function that is capable of simulating MPEG-4´s scalable video coding. These tools can be used as source traffic generator in network simulators. This enables the study of MPEG-4 transmission performance over wireless networks by using simulation. We model and generate the traffic based on the transform expand sample (TES) methodology. In our experiment, we generate MPEG-4 traffic and show the performance in terms of good matching of the characteristics of the modeled traffic.