A dynamic voltage scaling algorithm for wireless sensor networks

A wireless sensor node is often powered by battery which is not easily replaced, so researching how to use its limited energy effectively is the meaningful thing for wireless sensor networks (WSNs). Dynamic voltage scaling (DVS) has become a promising way for wireless sensor networks to exploit mult...

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Published in:2010 3rd International Conference on Advanced Computer Theory and Engineering(ICACTE) Vol. 1; pp. V1-554 - V1-557
Main Authors: Wei Tuming, Yu Sijia, Wei Hailong
Format: Conference Proceeding
Language:English
Published: IEEE 01.08.2010
Subjects:
Computer languages
dynamic voltage scaling
energy efficiency
Frequency modulation
Mathematical model
power optimization
Variable speed drives
Voltage control
Wireless sensor networks
ISBN:1424465397, 9781424465392
ISSN:2154-7491
Online Access:Get full text
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Abstract A wireless sensor node is often powered by battery which is not easily replaced, so researching how to use its limited energy effectively is the meaningful thing for wireless sensor networks (WSNs). Dynamic voltage scaling (DVS) has become a promising way for wireless sensor networks to exploit multiple voltage and frequency levels and prolong the sensor node's life. However, pure DVS for embedded systems did not perform well without considering the feature of wireless sensor networks' workloads. This paper proposed a task-driven feedback dynamic voltage scaling algorithm based on the multihop routing and topology changed easily could scale the working frequency and voltage levels dynamically according to the workloads of sensor node, fix the errors through feedback scheme and reduce the node's power consumption at the premise of real-time tasks. The results of simulation indicated that the improved algorithm could effectively reduce almost 30% more energy consumption than previous dynamic voltage scaling algorithm and prolong the life of wireless sensor networks significantly.
AbstractList A wireless sensor node is often powered by battery which is not easily replaced, so researching how to use its limited energy effectively is the meaningful thing for wireless sensor networks (WSNs). Dynamic voltage scaling (DVS) has become a promising way for wireless sensor networks to exploit multiple voltage and frequency levels and prolong the sensor node's life. However, pure DVS for embedded systems did not perform well without considering the feature of wireless sensor networks' workloads. This paper proposed a task-driven feedback dynamic voltage scaling algorithm based on the multihop routing and topology changed easily could scale the working frequency and voltage levels dynamically according to the workloads of sensor node, fix the errors through feedback scheme and reduce the node's power consumption at the premise of real-time tasks. The results of simulation indicated that the improved algorithm could effectively reduce almost 30% more energy consumption than previous dynamic voltage scaling algorithm and prolong the life of wireless sensor networks significantly.
Author Wei Tuming
Wei Hailong
Yu Sijia
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  surname: Wei Hailong
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  email: weihailong2008@163.com
  organization: Sch. of Mechatron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
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Snippet A wireless sensor node is often powered by battery which is not easily replaced, so researching how to use its limited energy effectively is the meaningful...
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SubjectTerms Computer languages
dynamic voltage scaling
energy efficiency
Frequency modulation
Mathematical model
power optimization
Variable speed drives
Voltage control
Wireless sensor networks
Title A dynamic voltage scaling algorithm for wireless sensor networks
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