Dual Priority Scheduling Based on Power Adjustment Context Switching for Ubiquitous Sensor Network

Dong-Sun KIM, Taeo HWANG, Seung-Yerl LEE, Kwang-Ho WON, Byung-Soo KIM, Seong-Dong KIM, Duck-Jin CHUNG

  • Full Text Views

    0

  • Cite this

Summary :

The Ubiquitous sensor network (USN) node is required to operate for several months with limited system resources such as memory and power. The typical USN node is in the active state for less than 1% of its several month lifetime and waits in the inactive state for the remaining 99% of its lifetime. This paper suggests a power adjustment dual priority scheduler (PA-DPS) that offers low power consumption while meeting the USN requirements by estimating power consumption in the USN node. PA-DPS has been designed based on the event-driven approach and the dual-priority scheduling structure, which has been conventionally suggested in the real-time system field. From experimental results, PA-DPS reduced the inactive mode current up to 40% under the 1% duty cycle.

Publication
IEICE TRANSACTIONS on Communications Vol.E90-B No.12 pp.3419-3425
Publication Date
2007/12/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e90-b.12.3419
Type of Manuscript
Special Section PAPER (Special Section on Ubiquitous Sensor Networks)
Category

Authors

Keyword

FlyerIEICE has prepared a flyer regarding multilingual services. Please use the one in your native language.