QOS-DRIVEN SCHEDULING FOR MULTIMEDIA APPLICATIONS
| dc.contributor.advisor | ||
| dc.contributor.author | Hua, Shaoxiong | |
| dc.contributor.author | Qu, Gang | |
| dc.date.accessioned | 2009-05-06T14:56:34Z | |
| dc.date.available | 2009-05-06T14:56:34Z | |
| dc.date.issued | 2004-05 | |
| dc.description.abstract | Multimedia applications have intrinsic quality of service (QoS) requirements that may not be captured by the simple traditional completion ratio model. We have proposed a new quantitative QoS metric based on task completion ratio while differentiating firm and soft deadlines and taking data dependency into consideration. Using the decoding of MPEG movies as an example, we have shown that the proposed QoS metric is much better than completion ratio in measuring the quality of presentation (QoP) of the movies. Based on the new QoS metric, we present a set of new online algorithms that outperform popular scheduling algorithms (such as EDF, FCFS, and LETF) and enhance QoP significantly, particularly when the system is overloaded. All the proposed online algorithms have low computation overhead and can be easily integrated into real-time operating systems to improve multimedia embedded system’s performance and/or to save system resources. | en |
| dc.format.extent | 246497 bytes | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.citation | S. Hua and G. Qu. "QoS-Driven Scheduling for Multimedia Applications," IEEE International Symposium on Circuits and Systems, Vol. 2, pp. 125-128, May 2004. | en |
| dc.identifier.uri | http://hdl.handle.net/1903/9060 | |
| dc.language.iso | en_US | en |
| dc.publisher | IEEE | en |
| dc.relation.isAvailableAt | A. James Clark School of Engineering | en_us |
| dc.relation.isAvailableAt | Electrical & Computer Engineering | en_us |
| dc.relation.isAvailableAt | Digital Repository at the University of Maryland | en_us |
| dc.relation.isAvailableAt | University of Maryland (College Park, MD) | en_us |
| dc.rights.license | Copyright © 2004 IEEE. Reprinted from IEEE International Symposium on Circuits and Systems. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Maryland's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. | |
| dc.subject | quality of service (QoS) | en |
| dc.subject | multimedia | en |
| dc.subject | quality of presentation (QoP) | en |
| dc.title | QOS-DRIVEN SCHEDULING FOR MULTIMEDIA APPLICATIONS | en |
| dc.type | Article | en |
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