1 / 28

Utility-Based Adaptive Video Streaming Mechanisms

Utility-Based Adaptive Video Streaming Mechanisms. Paolo V. Encomienda Nestor Michael C. Tiglao University of the Philippines Network Research Workshop July 17, 2006 APAN Singapore. Outline. Introduction Value-Based Utility Framework Objectives Results Conclusions and Future Work.

milt
Download Presentation

Utility-Based Adaptive Video Streaming Mechanisms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Utility-Based Adaptive Video Streaming Mechanisms Paolo V. Encomienda Nestor Michael C. Tiglao University of the Philippines Network Research Workshop July 17, 2006 APAN Singapore

  2. Outline • Introduction • Value-Based Utility Framework • Objectives • Results • Conclusions and Future Work Value-Based Adaptive Video Streaming Mechanisms

  3. Multimedia Applications • Highly sensitive to end-to-end delay and delay jitter but can tolerate occasional data loss • Should be able to maximize available bandwidth and handle dynamic delay jitter and loss rate. • RTP and RTCP provide QoS support but do not guarantee QoS Value-Based Adaptive Video Streaming Mechanisms

  4. Quality of Service (QoS) • Ability of the system to satisfy the service requirements of a network application • Requires the cooperation of many components along the end-to-end path • Many approaches: admission control, buffer management, packet classification, traffic shaping, packet scheduling Value-Based Adaptive Video Streaming Mechanisms

  5. Value-Based UtilityDefinition (C. Festin, 2005) Value-Based Adaptive Video Streaming Mechanisms

  6. Value-Based UtilityActual Range of Utility Values Value-Based Adaptive Video Streaming Mechanisms

  7. Video Streaming • Video delivery through file download require long download times and large storage spaces • Simultaneous delivery and playback of video • Splits the video into parts, transmits the video in succession, and plays the video as these parts are received Value-Based Adaptive Video Streaming Mechanisms

  8. MPEG Format • Uses JPEG-like compression techniques • I (intra frames) – coded independently, serve as base or reference frames • P (predicted frames) - coded based on a previously coded frame • B (bidirectional predicted frames) - coded using both previous and future coded frames Value-Based Adaptive Video Streaming Mechanisms

  9. MPEG Group of Pictures (GoP) Value-Based Adaptive Video Streaming Mechanisms

  10. Objectives • Develop adaptive video streaming mechanisms • Frame control • Admission control • Queuing disciplines • First-In, First-Out (FIFO) • Priority Queuing (PRIQ) Value-Based Adaptive Video Streaming Mechanisms

  11. Design Value-Based Adaptive Video Streaming Mechanisms

  12. Value-Based UtilityActual Range of Utility Values k, threshold Value-Based Adaptive Video Streaming Mechanisms

  13. Network Setup Value-Based Adaptive Video Streaming Mechanisms

  14. Traffic Mix • High expectation flows (HEFs), p=0.99 • Medium expectation flows (MEFs), p=0.90 • Low expectation flows (MEFs), p=0.80 Value-Based Adaptive Video Streaming Mechanisms

  15. Frame Controller • Adaptive frame dropping Value-Based Adaptive Video Streaming Mechanisms

  16. FIFO Loss Adaptation (HEFs) Value-Based Adaptive Video Streaming Mechanisms

  17. FIFO Loss Adaptation (MEFs) Value-Based Adaptive Video Streaming Mechanisms

  18. FIFO Loss Adaptation (LEFs) Value-Based Adaptive Video Streaming Mechanisms

  19. FIFO Jitter Adaptation (HEFs) Value-Based Adaptive Video Streaming Mechanisms

  20. FIFO Jitter Adaptation (MEFs) Value-Based Adaptive Video Streaming Mechanisms

  21. FIFO Jitter Adaptation (LEFs) Value-Based Adaptive Video Streaming Mechanisms

  22. PRIQ Loss Adaptation HEFs and MEFs LEFs with frame control LEFs w/o frame control Value-Based Adaptive Video Streaming Mechanisms

  23. Admission Controller • Adaptive packet remarking • Raise the priority of low expectation flows when high priority flows have higher utilities than their thresholds • Dropper • If at least one flow is unhappy, reject any new connection Value-Based Adaptive Video Streaming Mechanisms

  24. Without Frame Controller HEFs LEFs w/ admission control LEFs w/o admission control MEFs w/ admission control Value-Based Adaptive Video Streaming Mechanisms

  25. With Frame Controller HEFs and MEFs LEFs w/ admission control LEFs w/ admission control Value-Based Adaptive Video Streaming Mechanisms

  26. Conclusions • VBU is effective in developing adaptive video streaming applications • The frame control and admission control mechanism improved the quality of video streaming Value-Based Adaptive Video Streaming Mechanisms

  27. Future Work • Explore other queuing mechanisms which provide fairer treatment • Enhance the feedback mechanism • Extend the work to multi-hop networks Value-Based Adaptive Video Streaming Mechanisms

  28. Thank you very much! Any questions? Value-Based Adaptive Video Streaming Mechanisms

More Related