Abstract-We present a rate control algorithm adapted to MPEG video coders ensuring that output conforms to the parameters of a leaky-bucket network access controller. The algorithm avoids unpredictable rate variations without the rigidity and systematic coding delay of constant bit-rate (CBR) coders, and makes possible resource provision for guaranteed quality of service. A relatively large burst tolerance parameter allows considerable scope for variation at GoP scale, and only restricts the natural rate when necessary to avoid long-term overloads. Possible multiplexing schemes are discussed distinguishing buffer provision for cell-scale and burst-scale congestion. Index Terms-ATM networks, MPEG, quality of service guarantee, scales of congestion, shaping, statistical multiplexing, VBR video.
Hamdi et al. REF propose a closed-loop rate control algorithm which adapts MPEG video coder parameters according to the value of a leakybucket counter forcing the output to conform to sustainable rate and burst tolerance parameters used to describe the traffic characteristics of a require connection.
Rate Control for VBR Video Coders in Broad-Band Networks
IEEE J. Sel. Areas Commun.
IEEE J. Sel. Areas Commun.
Computer Science