Statistical multiplexing gains of H.264/AVC video in E-MBMS

With the increasing acceptance of H.264/AVC as a video coding standard for mobile multimedia, it becomes very important to control the extreme burstiness of the traffic generated by the H.264/AVC encoder. Statistical multiplexing of video streams can be used to reduce the bit rate variations. In practice, the number of video streams that can be multiplexed together is quite limited and therefore, additional mechanisms are needed to eliminate the residual burstiness and to adapt the bit rate of the bundle to the bit rate of the transport channel. Here we evaluate the potential statistical multiplexing gains with and without the coordination in the encoders. The gains are measured relative to the case where rate-controlled (capped) streams are delivered on individual transport channels.