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transcom.E97.B.1843.pdf | 3.75 MB | Adobe PDF | 見る/開く |
タイトル: | Implementation and feasibility study of co-channel operation system of microwave power transmissions to IEEE 802.11-based battery-less sensors |
著者: | YAMASHITA, Shota IMOTO, Norikatsu ICHIHARA, Takuya YAMAMOTO, Koji https://orcid.org/0000-0003-4106-3983 (unconfirmed) NISHIO, Takayuki MORIKURA, Masahiro https://orcid.org/0000-0002-3634-1320 (unconfirmed) SHINOHARA, Naoki |
キーワード: | microwave power transmission IEEE 802.11g-based wireless LAN co-channel operation batteryless time scheduling sleep mode |
発行日: | Sep-2014 |
出版者: | Institute of Electronics, Information and Communication Engineers(IEICE) |
誌名: | IEICE Transactions on Communications |
巻: | E97-B |
号: | 9 |
開始ページ: | 1843 |
終了ページ: | 1852 |
抄録: | In this paper, we study the feasibility of a batteryless wireless sensor supplied with energy by using microwave power transmission (MPT). If we perform co-channel operation of MPT and wireless local area networks (WLANs) for the sake of spectral efficiency, a time division method for MPT and WLAN communications is required to avoid serious interference from MPT to WLAN data transmissions. In addition, to reduce the power consumption of a sensor, the use of power-save operation of the sensor is desirable. We proposed a scheduling scheme that allocates time for MPT and WLAN communications. Specifically, in the proposed scheduling system, an energy source transmits microwave power to a sensor station except when the sensor station transmits data frames or receives beacon frames. In addition, in the proposed scheduling system, we force the remaining energy of the sensor station to converge to a maximum value by adjusting the time interval of data transmission from the sensor station such that the power consumption of the sensor station is reduced. On the basis of the proposition, we implemented a scheduling system and then confirmed that it performed successfully in the conducted experiments. Finally, we discussed the feasibility of the proposed scheduling scheme by evaluating the coverage and then showed that the scheduling scheme can be applied to closed space or room. |
著作権等: | © 2014 The Institute of Electronics, Information and Communication Engineers |
URI: | http://hdl.handle.net/2433/193083 |
DOI(出版社版): | 10.1587/transcom.E97.B.1843 |
出現コレクション: | 学術雑誌掲載論文等 |
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