Abstract
A significant challenge in all-IP multi-service networks is to balance the goal of providing high-quality services to the end-users with the desire to maximize the number of end-users that can be simultaneously served. This paper presents a solution to this challenge by using the Quality-Oriented Adaptation Scheme (QOAS) for delivering multimedia streams. This adaptive mechanism uses feedback from clients regarding the quality of delivery to assist the server in making dynamic adjustments to the transmitted streams. Experimental objective and subjective test results illustrate the significant performance improvements achieved by QOAS, both in terms of number of simultaneous viewers served and of end-user perceived quality.
| Original language | English |
|---|---|
| Pages (from-to) | 1-10 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Broadcasting |
| Volume | 50 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published (in print/issue) - 1 Mar 2004 |
Funding
Manuscript received December 13, 2002; revised January 15, 2004. This work was supported by the Research Innovation Fund of Enterprise Ireland. G.-M. Muntean and P. Perry are with the School of Electronic Engineering, Dublin City University, Dublin 9, Ireland (e-mail: [email protected]; [email protected]). L. Murphy is with the Computer Science Department, University College Dublin, Dublin 4, Ireland (e-mail: [email protected]). Digital Object Identifier 10.1109/TBC.2004.824745
Keywords
- Adaptive multimedia streaming
- All-IP multi-service networks
- Dynamic feedback
- Grading scheme
- Statistical multiplexing
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