Impacts of Scalable Video Coding on Channel Utilization

We are concerned about the problem of the real-time transmission of constant quality video. A gain in channel utilization is achieved when several Variable Bit Rate video sources share a common channel. To achieve such gain, the impact of cell losses on video quality degradation should be considered. Layered video coding has proved to tolerate more cell losses than non-layered video coding while maintaining a consistent quality. In this paper, we propose a layered-coding scheme and study the effect of this cell loss tolerability on channel utilization for networks providing deterministic or statistical QoS guarantees.