Presentation 2022-07-25
[Poster Presentation] Consideration of radio wave attenuation due to shielding in the communication path in 220MHz band and 920MHz band outdoor communication experiments
Motonari Imai, Naoki Ikeda, Takato Ikegame, Tetsusi Ikegami,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Currently, large-scale disaster response IoT (DR-IoT) using the 220 MHz band is under development. In this paper, we evaluate the performance of DR-IoT by comparing the propagation loss between DR-IoT in the 220 MHz band and LoRa inthe 920 MHz band. Focusing mainly on the attenuation caused by buildings on campus, we will compare and investigate howmuch the attenuation is affected by the LOS environment and the number of buildings blocking the communication path. Wewill also compare the difference in PER (Packet Error Rate) between the 220 MHz band and the 920 MHz band depending onthe number of buildings. In addition to the demonstration experiment, we will evaluate the LOS environment using propagationmodels such as free space propagation loss and two-wave models in the same environment, and examine whether the measuredvalues in the shielded environment are plausible.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) radio propagation / DR-IoT / propagation loss / PER / Building loss
Paper # WBS2022-21,MICT2022-21
Date of Issue 2022-07-18 (WBS, MICT)

Conference Information
Committee MICT / WBS
Conference Date 2022/7/25(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Okayama Prefectural University
Topics (in Japanese) (See Japanese page)
Topics (in English) Wideband System, Healthcare and Medical Information Communication Technologies, Student Poster Session, etc.
Chair Hirokazu Tanaka(Hiroshima City Univ.) / Takashi Shono(INTEL)
Vice Chair Chika Sugimoto(Yokohama National Univ.) / Daisuke Anzai(Nagoya Inst. of Tech.) / Hiroyasu Ishikawa(Nihon Univ.) / Hideki Ochiai(Yokohama National Univ.)
Secretary Chika Sugimoto(Okayama Pref. Univ.) / Daisuke Anzai(KISTEC) / Hiroyasu Ishikawa(Okayama Prefectural Univ.) / Hideki Ochiai(Chiba Univ. of Tech.)
Assistant Takahiro Ito(Hiroshima City Univ) / Natsuki Nakayama(Nagoya Univ.) / Takuya Nishikawa(National Cerebral and Cardiovascular Center Hospital) / Sun Ran(Ibaraki Univ.) / Chen Na(NAIST)

Paper Information
Registration To Technical Committee on Healthcare and Medical Information Communication Technology / Technical Committee on Wideband System
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Consideration of radio wave attenuation due to shielding in the communication path in 220MHz band and 920MHz band outdoor communication experiments
Sub Title (in English)
Keyword(1) radio propagation
Keyword(2) DR-IoT
Keyword(3) propagation loss
Keyword(4) PER
Keyword(5) Building loss
1st Author's Name Motonari Imai
1st Author's Affiliation Meiji University(Meiji Univ.)
2nd Author's Name Naoki Ikeda
2nd Author's Affiliation Meiji University(Meiji Univ.)
3rd Author's Name Takato Ikegame
3rd Author's Affiliation Meiji University(Meiji Univ.)
4th Author's Name Tetsusi Ikegami
4th Author's Affiliation Meiji University(Meiji Univ.)
Date 2022-07-25
Paper # WBS2022-21,MICT2022-21
Volume (vol) vol.122
Number (no) WBS-131,MICT-132
Page pp.pp.24-29(WBS), pp.24-29(MICT),
#Pages 6
Date of Issue 2022-07-18 (WBS, MICT)