Applying traffic smoothing techniques for quality of service control in VBR video transmissions

In this paper, we examine the fundamental relationship among quality of service, connection cost and traac smoothing in VBR video transmissions. In particular, we discuss how traac smoothing can help improving the quality of service and(or) reducing the network cost for a VBR video session. For this purpose, we present an eeective and eecient traac smoothing technique called the \minimum polyline smoothing". Based on this technique, we can minimize the connection costs for deterministic services and dynamically adjust QoS parameters for statistical services in VBR video transmissions.