Dynamic Bandwidth Allocation for Efficient Transport of Real-Time VBR Video over ATM

This pape? presents a novel approach to dynamic transmission bandwidth allocation for transport of real-time variable-bit-rate video in ATM networks. Describe video traffic in the frequency domain: the low frequency signal captures the slow time-variation of consecutive scene changes; the high frequency signal exhibits the feature of strong frame autocorrelation. Our study indicates that the video transmission bandwidth in a finite-buffer system is essentially characterized by the low frequency signal. Since the time scale of scene changes is usually in the range of a second or longer, the low frequency video signal is defined in a well-founded low frequency band. Hence, it is feasible to implement dynamic allocation of video transmission bandwidth using on-line observation and prediction of scene changes. Two prediction schemes are examined: recursive least square method us. time delay neural network method. A time delay neural network with low-complexity high-order architecture, cal...

• Type: Conference
• Year: 1994
• Where: INFOCOM
• Authors: Song Chong, San-qi Li, Joydeep Ghosh
• Keywords: Communications, INFOCOM 1994, Low Frequency, Low Frequency Signal, Scene Changes