Packet audio playout delay adjustment: performance bounds and algorithms
Multimedia Systems
IEEE/ACM Transactions on Networking (TON)
The effects of jitter on the peceptual quality of video
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 2)
Equation-based congestion control for unicast applications
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
Video staging: a proxy-server-based approach to end-to-end video delivery over wide-area networks
IEEE/ACM Transactions on Networking (TON)
End-to-end delay analysis of videoconferencing over packet-switched networks
IEEE/ACM Transactions on Networking (TON)
Optimal control of service for facility holding inventory
Computers and Operations Research
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
Intelligent video smoother for multimedia communications
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
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One way to reduce, or avoid, the loss of intrastream synchronization due to the delay variability introduced by best-effort networks, is by employing application layer buffering and scheduling at a Packet Video Receiver (PVR), resulting in a higher end-to-end delay. In this paper an analytical model is presented that captures the essential tradeoff between stream continuity and stream latency. Unlike past related work, stream continuity is not expressed as the accumulated amount of synchronization loss, but as a combination of the accumulated amount, and the variation of the duration of synchronization loss occurrences. This approach allows for a fine grained optimization of stream continuity which has the potential of providing an improved perceptual quality. It is shown that the minimization of the accumulated amount of synchronization loss, and the minimization of the variance of the duration of synchronization loss occurrences, are two competing objectives; the minimization of variance is desirable because it leads to the concealment of discontinuities. The aforementioned presentation quality metrics are considered by the optimal playout policy, which is derived by means of Markov decision theory and linear programming.