NDLI: Rate-Harmonized Scheduling for Saving Energy

Content Provider	IEEE Xplore Digital Library
Author	Rowe, A. Lakshmanan, K. Haifeng Zhu Rajkumar, R.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburg, PA (Rowe, A.; Lakshmanan, K.; Haifeng Zhu; Rajkumar, R.)
Abstract	Energy consumption continues to be a major concern in multiple application domains including power-hungry data centers, portable and wearable devices, mobile communication devices and wireless sensor networks. While energy-constrained, many such applications must meet timing and QoS constraints for sensing, actuation or multimedia data processing. Many modern power-aware processors and microcontrollers have built-in support for active, idle and sleep operating modes. In sleep mode, substantially more energy savings can be obtained but it requires a significant amount of time to switch into and out of that mode. Hence, a significant amount of energy is lost due to idle gaps between executing tasks that are shorter than the required time for the processor to enter the sleep mode. We present a technique called rate-harmonized scheduling that naturally clusters task execution such that processor idle times are lumped together. We next introduce the energy-saving rate-harmonized scheduler which guarantees that every idle duration on the processor can be used to put the processor into sleep mode. This property can be used to even eliminate the idle power mode in processors but nevertheless it is predictable, analyzable, and saves more energy. We finally evaluate the practical benefits of rate-harmonized scheduling implemented in the nano-RK real-time operating system [1] for wireless sensor networks.
Starting Page	113
Ending Page	122
File Size	216768
Page Count	10
File Format	PDF
ISBN	9780769534770
ISSN	10528725
DOI	10.1109/RTSS.2008.50
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-30
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Processor scheduling Wireless sensor networks Switches Energy consumption Mobile communication Timing Data processing Microcontrollers Real time systems Operating systems Energy Saving Real-time scheduling Wireless Sensor Networks
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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