5-GHz Band Wi-Fi Backscatter System for Multiple Sensor Nodes Identification

Koki Edamatsu, Taiki MacHii, Mizuki Motoyoshi, Suguru Kameda, Noriharu Suematsu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we propose multiple sensor nodes identification based on 5 GHz band Wi-Fi system for wireless IoT system. This identification system utilizes backscatter which is used for RFID. Wi-Fi signal and Wi-Fi backscatter signal are multiplied to downconvert to identify sensor node (SN) in the backscatter receiver. Each sensor node (SN) uses different clock frequencies to generate backscatter signals of the received Wi-Fi signal. In the backscatter receiver, the Wi-Fi signal and the backscatter signal are multiplied to downconvert, thus the downconverted spectrum appears in different frequencies for identifying multiple SNs easily. The effectiveness of the proposed system is confirmed by experimental demonstration.

Original languageEnglish
Title of host publication2020 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages112-114
Number of pages3
ISBN (Electronic)9781728165066
DOIs
Publication statusPublished - 2020 Sep
Event2020 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2020 - Hiroshima, Japan
Duration: 2020 Sep 22020 Sep 4

Publication series

Name2020 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2020

Conference

Conference2020 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2020
CountryJapan
CityHiroshima
Period20/9/220/9/4

Keywords

  • Antenna
  • IoT
  • Microwaves
  • RFID
  • WLAN

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Radiation

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