Power‐efficient real‐time scheduling based on multi‐granularity resource reservation for multimedia services
| Autor: | Joohyung Sun, Hyeonjoong Cho |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Rate-monotonic scheduling
Multimedia Computer science business.industry 0211 other engineering and technologies Reservation 02 engineering and technology computer.software_genre Computer Graphics and Computer-Aided Design 020202 computer hardware & architecture Scheduling (computing) Dynamic voltage scaling Dynamic demand 0202 electrical engineering electronic engineering information engineering Mobile technology Granularity business Mobile device computer 021106 design practice & management Computer network |
| Zdroj: | IET Software. 11:171-180 |
| ISSN: | 1751-8814 1751-8806 |
| DOI: | 10.1049/iet-sen.2015.0108 |
| Popis: | Recent advances in mobile technologies have led to improved quality of multimedia services (QoMS) in a variety of mobile devices. Because multimedia has become a major form of content consumption for mobile users, satisfying user expectation on QoMS in energy-restricted mobile devices is critical. This need has motivated us to develop an aggressive and conservative low-power work demand analysis with multi-granularity (lpWDA-MG-AGG/CON) algorithm, designed to minimise power consumption in mobile devices by utilising a dynamic voltage scaling technique while simultaneously ensuring QoMS based on a resource reservation scheme. In addition, the authors analytically showed the schedulability of the proposed scheme under the rate monotonic scheduling policy. For performance evaluation, the authors implemented the two lpWDA-MG algorithms and several existing algorithms in a Linux operating system. Specifically, the authors measured power consumption with a power metre and determined that the proposed algorithms consume about 40% less dynamic power than the other existing algorithms. Moreover, the authors found that the proposed algorithms ensure acceptable QoMS. |
| Databáze: | OpenAIRE |
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