Rate Adaptation Based on Exposure Assessment Using Rectenna Output for WLAN Station Powered with Microwave Power Transmission

• YAMASHITA Shota

  Graduate School of Informatics, Kyoto University

• SAKAGUCHI Koichi

  Graduate School of Informatics, Kyoto University

• HUANG Yong

  Research Institute for Sustainable Humanosphere, Kyoto University

• YAMAMOTO Koji

  Graduate School of Informatics, Kyoto University

• NISHIO Takayuki

  Graduate School of Informatics, Kyoto University

• MORIKURA Masahiro

  Graduate School of Informatics, Kyoto University

• SHINOHARA Naoki

  Research Institute for Sustainable Humanosphere, Kyoto University

Abstract

This paper proposes a rate adaptation scheme (RAS) for a wireless local area network (WLAN) station powered with microwave power transmission (MPT). A WLAN station attempting to transmit data frames when exposed to microwave radiation for MPT, experiences a reduction in the physical (PHY) layer data rate because frames are lost even when the carrier sense mechanism is used. The key idea of the proposed scheme is to utilize the output of the rectenna used for receiving microwave power. Using rectenna output, a WLAN station based on the proposed scheme assesses whether the station is exposed to microwave radiation for MPT. Then, using historical data corresponding to the assessment result, the station selects an appropriate PHY data rate. The historical data are obtained from previous transmission results, e.g., historical data pertaining to the data frame loss ratio. The proposed scheme was implemented and verified through an experiment. Experimental results showed that the proposed scheme prevents the reduction in the PHY data rate, which is caused by the use of historical data stored in a single memory. Thus, the proposed scheme leads to an improvement in the WLAN throughput.

Journal

• IEICE Transactions on Communications

  IEICE Transactions on Communications E98.B (9), 1785-1794, 2015

  The Institute of Electronics, Information and Communication Engineers

Keywords

• wireless local area network
• rate adaptation
• microwave power transmission
• rectenna

Details

• CRID: 1390001204374421376
• NII Article ID: 130005096072
• NII Book ID: AA10826261
• DOI: 10.1587/transcom.e98.b.1785
• ISSN: 17451345
• ISSN: 09168516
• HANDLE: 2433/200767
• Web Site: https://www.jstage.jst.go.jp/article/transcom/E98.B/9/E98.B_1785/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed