Name
Abstract | ||
|---|---|---|
Many multimedia applications rely on video streaming techniques. However, video delivery over a Best Effort network such as today's Internet is a challenge. Traffic load in the network changes dynamically and in an unpredictable way causing the resource availability to vary. Providing an application level end-to-end quality of service in such an environment requires network-awareness and ability to adapt. We address the issue of mapping between application-level quality of service for streaming video and network-level quality of service. We show that continuous playback requires a limit on the delay jitter. We tackle the problem of providing end-to-end video quality given that the network does not guarantee limited delay variability. Our approach is unique in a way we do not model network as a black box but investigate what information about the network status is necessary for an application to make adaptation decisions. We rely on simple multi-level ECN-based mechanism to obtain a feedback from the network as well as on end-point observations to determine available bandwidth. Such an approach allows to obtain better user-perceived video quality by providing additional information to properly interpret the arrival rate observed at the end-point. We propose a 3-rate adaptation mechanism for video streaming to illustrate the philosophy of adaptivity based on network awareness, where the network awareness is not limited to observing network reaction to a set of stimuli. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1016/j.jss.2003.12.034 | Journal of Systems and Software |
Keywords | Field | DocType |
application level end-to-end quality,model network,adaptive multimedia,network-aware application,effort network,user-perceived video quality,network reaction,network awareness,end-to-end video quality,adaptive end-to-end,video streaming,network changes dynamically,video delivery,network status,best effort,quality of service,video quality | Black box (phreaking),Computer science,Video delivery,Computer network,Quality of service,Media Delivery Index,Real-time computing,Bandwidth (signal processing),Jitter,Video quality,The Internet | Journal |
Volume | Issue | ISSN |
75 | 3 | The Journal of Systems & Software |
Citations | PageRank | References |
10 | 1.04 | 14 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ewa Kusmierek | 1 | 35 | 5.68 |
| David H. C. Du | 2 | 1052 | 90.79 |