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Dynamic Voltage Scheduling with Buffers in Low-Power Multimedia Applications
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Cited 37 time in Scopus
- Authors
- Issue Date
- 2004-11
- Citation
- ACM Transactions on Embedded Computing Systems (TECS) Vol. 3, No. 4, pp 686-705, 2004
- Keywords
- Buffer requirement estimation ; dynamic voltage scheduling ; low-power systems ; multimedia applications
- Abstract
- Power-efficient design of multimedia applications becomes more important as they are used increasingly in
many embedded systems. We propose a simple dynamic voltage scheduling technique which suits multimedia
applications well and, in case of soft real-time applications, allows all idle intervals of the processor to be fully
exploited by using buffers. Our main theme is to determine the minimum buffer size to maximize energy saving
in three cases: (i) single-task, (ii) multiple-subtask and (iii) multi-task. We also present a technique of adjusting
task deadlines for further reducing energy consumption in the multiple-subtask and multi-task cases. Unlike
other DVS techniques using buffers, we guarantee to meet the real-time latency constraint. Experimental results
show that the proposed technique does indeed achieve significant power reduction in real-world multimedia
applications.
- ISSN
- 1539-9087
- Language
- English
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