Video Multiplexing with QoS Constraints

摘要

Providing profitable video services is becoming one of the primary goals of many network services when delivering a large number of video stremas in a single data link. Aggregated bandwidth utilization and Quality of Service (QoS) degradation are the issues that need to be considered. It is well known that Variable Bit Rate (VBR) video traffic generated by Motion Picture Expert Group (MPEG) exhibits significant multiple-time-scale rate variability (bursts). This phenomenon causes difficulties for QoS provisioning. QoS control, and QoS management. Many research activities were concentrating on reducing the bursty nature of video traffic and increasing statistical multiplexing gain by using different buffering techniques at several transmission levels, which induces frame delays and delay variations (jitters).