Presentation 2021-07-28
[Invited Lecture] A Study on Path Loss Prediction Formula for IoT wireless system close to Concrete Ceiling with Flat Surface in 920MHz band
Naotake Yamamoto, Taichi Sasaki, Atsushi Yamamoto, Tetsuya Hishikawa, Kentaro Saito, Junichi Takada, Toshiyuki Maeyama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) With the growth of the IoT (Internet of Things) market in recent years, wireless devices in the 920MHz band have been implemented in home appliances and equipment used indoors. Since the equipment such as lighting and air conditioning system is set near construction materials such as the ceiling, wireless site planning should be done taking into account the installation environment in order to realize stable wireless link. This paper provides a path loss prediction formula for site planning when the devices are installed on the flat concrete ceiling, which is widely used in non-residential building such as factories and warehouses. The path loss prediction formula is derived from the simulation results by the FDTD (Finite Difference Time Domain) method and its effectiveness is confirmed by comparing with experimental result.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Indoor propagation / Path loss prediction / Wireless system design / FDTD / IoT / 920MHz band
Paper # AP2021-32
Date of Issue 2021-07-21 (AP)

Conference Information
Committee AP / SANE / SAT
Conference Date 2021/7/28(3days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English) Remote sensing, Sattelite Communication, Radio propagation, Antennas and Propagation
Chair Hiroshi Yamada(Niigata Univ.) / Toshifumi Moriyama(Nagasaki Univ.) / Hiroyasu Ishikawa(Nihon Univ.)
Vice Chair Mitoshi Fujimoto(Fukui Univ) / Makoto Tanaka(Tokai Univ.) / Takeshi Amishima(Mitsubishi Electric) / Tetsushi Ikegami(Meiji Univ.) / Takana Kaho(Shonan Inst. of Tech.)
Secretary Mitoshi Fujimoto(NTT DOCOMO) / Makoto Tanaka(National Defense Academy) / Takeshi Amishima(Univ. of Tokyo) / Tetsushi Ikegami(ENRI) / Takana Kaho(KDDI Research)
Assistant Dr. Kim(Niigata Univ.) / Takayuki Kitamura(Mitsubishi Electric) / Daisuke Goto(NTT) / Yuuki Koizumi(NHK)

Paper Information
Registration To Technical Committee on Antennas and Propagation / Technical Committee on Space, Aeronautical and Navigational Electronics / Technical Committee on Satellite Telecommunications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Lecture] A Study on Path Loss Prediction Formula for IoT wireless system close to Concrete Ceiling with Flat Surface in 920MHz band
Sub Title (in English)
Keyword(1) Indoor propagation
Keyword(2) Path loss prediction
Keyword(3) Wireless system design
Keyword(4) FDTD
Keyword(5) IoT
Keyword(6) 920MHz band
1st Author's Name Naotake Yamamoto
1st Author's Affiliation Panasonic Corporation(Panasonic)
2nd Author's Name Taichi Sasaki
2nd Author's Affiliation Panasonic Corporation(Panasonic)
3rd Author's Name Atsushi Yamamoto
3rd Author's Affiliation Panasonic Corporation(Panasonic)
4th Author's Name Tetsuya Hishikawa
4th Author's Affiliation Panasonic Corporation(Panasonic)
5th Author's Name Kentaro Saito
5th Author's Affiliation Tokyo Denki University(Tokyo Denki Univ.)
6th Author's Name Junichi Takada
6th Author's Affiliation Tokyo Institute of Technology(Tokyo Tech.)
7th Author's Name Toshiyuki Maeyama
7th Author's Affiliation Takushoku University(Takushoku Univ.)
Date 2021-07-28
Paper # AP2021-32
Volume (vol) vol.121
Number (no) AP-126
Page pp.pp.49-54(AP),
#Pages 6
Date of Issue 2021-07-21 (AP)