Paper Abstract and Keywords |
Presentation |
2007-07-26 15:40
Cross-Layer Design for Low-Power Wireless Sensor Node using Long-Wave Standard Time Code Yu Otake, Masumi Ichien, Takashi Takeuchi, Akihiro Gion, Shinji Mikami, Hidehiro Fujiwara, Hiroshi Kawaguchi, Chikara Ohta, Masahiko Yoshimoto (Kobe Univ.) ICD2007-49 Link to ES Tech. Rep. Archives: ICD2007-49 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We propose Isochronous-MAC (I-MAC) using the Long-Wave Standard Time Code, and introduce cross-layer design for a low-power wireless sensor node with I-MAC. I-MAC has a periodic wakeup time synchronized with the actual time, and thus requires a precise timer. However, a frequency of a crystal oscillator varies along with temperature, from node to node. We utilize a time correction algorithm to shorten the time difference among nodes. Thereby, the preamble length in I-MAC can be minimized, which saves a communication power. For further power reduction, a low-power crystal oscillator is also proposed, as a physical-layer design. We implemented I-MAC on an off-the-shelf sensor node to estimate the power saving, and verified that I-MAC reduces 81% of the total power, compared to Low Power Listening. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Cross-layer design / crystal oscillator / Long-Wave Standard Time Code / Low Power Listening / MAC / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, pp. 71-76, July 2007. |
Paper # |
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Date of Issue |
2007-07-19 (ICD) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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ICD2007-49 Link to ES Tech. Rep. Archives: ICD2007-49 |
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