On Network Planning for Video Services Over IP Networks

Abstract

Video transmission over IP requires very high data rate for a good performance. Variable bit rate (VBR)-coded video is more popular than constant bit rate (CBR)-coded video due to its statistical multiplexing gain and stable quality level. This phenomenon forms a real challenge for network planning and especially for appropriate capacity evaluation. In this work, we propose a new capacity planning model that is especially designed for VBR video transmission over IP networks. This new method takes the quality level and the desired delay threshold as its main design parameters. We investigate this new method by means of simulations and we finally validate its applicability for real-time video transmission with respect to different system parameters.