A low-power link speed control method on distributed real-time systems

Yusuke Kumura, Kazutoshi Suito, Hiroki Matsutani, Nobuyuki Yamasaki

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

Distributed real-time systems that consist of multiple tasks with time constraints implemented on multiple processors have been used in various embedded systems, such as humanoid robots. These processors are interconnected with a real-time network, such as Responsive Link, in which data rate of each channel can be changed individually and dynamically. In this paper, we propose a low-power communication technique for distributed real-time systems. The power consumption is reduced by slowing down the data rate of communication link while satisfying the time constraints by exploiting the slack time, which is the difference between the arrival time of data and the deadline. We first measured power consumption of Responsive Link with various data rates and then implemented a real-time network simulator using the measured power values. We also implement a run-time communication mode change mechanism on Responsive Link and discuss the feasibility. Simulation results show that the proposed low-power packet transfer technique reduces the power consumption by up to 53.46% with a negligible degradation on the schedulability.

元の言語English
ホスト出版物のタイトルProceedings - IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013
出版者IEEE Computer Society
ページ49-54
ページ数6
ISBN(印刷物)9780768550862
DOI
出版物ステータスPublished - 2013 1 1
イベント2013 IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013 - Tokyo, Japan
継続期間: 2013 9 262013 9 28

出版物シリーズ

名前Proceedings - IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013

Other

Other2013 IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013
Japan
Tokyo
期間13/9/2613/9/28

ASJC Scopus subject areas

  • Hardware and Architecture

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  • これを引用

    Kumura, Y., Suito, K., Matsutani, H., & Yamasaki, N. (2013). A low-power link speed control method on distributed real-time systems. : Proceedings - IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013 (pp. 49-54). [6657903] (Proceedings - IEEE 7th International Symposium on Embedded Multicore/Manycore System-on-Chip, MCSoC 2013). IEEE Computer Society. https://doi.org/10.1109/MCSoC.2013.25