Analysis and simulation of a fair queueing algorithm
SIGCOMM '89 Symposium proceedings on Communications architectures & protocols
Traffic descriptors for VBR video teleconferencing over ATM networks
IEEE/ACM Transactions on Networking (TON)
An adaptive congestion control scheme for real time packet video transport
IEEE/ACM Transactions on Networking (TON)
A scheme for real-time channel establishment in wide-area networks
IEEE Journal on Selected Areas in Communications
Dynamic call admission control in ATM networks
IEEE Journal on Selected Areas in Communications
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The transport of high quality live video requires a video service that does not rely heavily upon accurate a priori traffic parameter estimation (as VBR does) and does not unnecessarily sacrifice multiplexing gain and visual quality (as CBR does). A new service capable of supporting the transport of video on a guaranteed, as well as on a best effort, basis is introduced. This service, called quasi-VBR service, is based on an early version of the ATM Forum's EPRCA rate control algorithm [ATM Forum Traffic Management Specification, Version 4.0, ATM Forum Document 95-0013R9], a modified version of Sriram's T"1T"2 service discipline [K. Sriram, Proc. IEEE Globecom, 1990, pp. 1003-1009], and an adaptive video encoding scheme. The results of a simulation study in which quasi-VBR video and ABR data traffic interact are presented. Actual MPEG-1 video sequences are used. Results show that quasi-VBR video service is capable of rapidly adapting to changes in network conditions, providing high quality video service and good network resource utilization.