Dynamic Bandwidth Allocation for VBR Video Traffic Based on Scene Change Identification

To guarantee quality of service (QoS), the requirements of video transmission, such as delay and cell loss rate (CLR), are very stringent. These constraints are diicult to meet if high network utilization is desired. In this paper, dynamic band-width allocation algorithms, in which scene change identiication is incorporated, are proposed to improve the bandwidth utilization. The bandwidth allocated for each scene is based on the maximum and mean bandwidth of the scene. When a scene change is identiied, a new negotiation process is triggered, and the bandwidth is reallocated.