5GHz Simplified Beam Forming Wireless IoT Communication using Wi-Fi Backscatter (Invited Paper)

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

研究成果: Conference contribution

抄録

In order to realize smart factory which is appeared in the concepts of Society 5.0 and Industry 4.0, wireless Internet of Things (IoT) becomes a key technology. Inside of the factory, there are heavy DATA traffics exist between moving/movable machine tools/robots/automated guided vehicle (AGV) with wireless access point (AP) and high speed moving/rotating objects/materials with wireless sensor node (SN). Currently, wireless systems used for wireless IoT are limited such as wireless-LAN/Bluetooth/RFID. Since these system's frequency bands are limited and narrow, the interference between these systems becomes severe. In this paper, we propose a simplified beam forming wireless IoT communication using novel Wi-Fi backscatter system to notify the existence of SN who wants to send its DATA to AP. For Wi-Fi AP with beamforming function, knowing the numbers of existing SNs in each beam area will be a help for efficient beam control. This paper describes the Wi-Fi backscatter system in which the SNs backscatter the Wi-Fi signal transmitted from the AP then the AP detects the backscatter signals from SNs and know the existing SN's number in its beam area. Since this backscatter system uses Wi-Fi modulated signal, the separation of SNs' backscatter signals from AP's transmitting Wi-Fi signal becomes complicated. This paper also describes the transceiver architecture of AP which reduces the complexity of signal processing and improves the dynamic range of reception.

本文言語English
ホスト出版物のタイトル2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781665433914
DOI
出版ステータスPublished - 2021 8 25
イベント2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021 - Hualien, Taiwan, Province of China
継続期間: 2021 8 252021 8 27

出版物シリーズ

名前2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021

Conference

Conference2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021
国/地域Taiwan, Province of China
CityHualien
Period21/8/2521/8/27

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学
  • 器械工学

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