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A path loss prediction formula for IoT (Internet of Things) wireless communication close to ceiling beams in the 920MHz band is presented. In first step of our investigation, we conduct simulations using the FDTD (Finite Difference Time Domain) method and propagation tests close to a beam on the ceiling of a concrete building. In the second step, we derive a path loss prediction formula from the simulation results by using the FDTD method, by dividing into three regions of LoS (line-of-sight) situation, situation in the vicinity of the beam, and NLoS (non-line-of-sight) situation, depending on the positional relationship between the beam and transmitter (Tx) and receiver (Rx) antennas. For each condition, the prediction formula is expressed by a relatively simple form as a function of height of the antennas with respect to the beam bottom. Thus, the prediction formula is very useful for the wireless site planning for the IoT wireless devices set close to concrete beam ceiling.

- Publication
- IEICE TRANSACTIONS on Communications Vol.E105-B No.12 pp.1540-1547

- Publication Date
- 2022/12/01

- Publicized
- 2022/06/22

- Online ISSN
- 1745-1345

- DOI
- 10.1587/transcom.2022EBP3010

- Type of Manuscript
- PAPER

- Category
- Antennas and Propagation

Naotake YAMAMOTO

Panasonic Corporation,Tokyo Institute of Technology

Taichi SASAKI

Panasonic Corporation

Atsushi YAMAMOTO

Panasonic Corporation

Tetsuya HISHIKAWA

Panasonic Corporation

Kentaro SAITO

Tokyo Denki University

Jun-ichi TAKADA

Tokyo Institute of Technology

Toshiyuki MAEYAMA

Takushoku University

The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.

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Naotake YAMAMOTO, Taichi SASAKI, Atsushi YAMAMOTO, Tetsuya HISHIKAWA, Kentaro SAITO, Jun-ichi TAKADA, Toshiyuki MAEYAMA, "920MHz Path Loss Prediction Formula Based on FDTD Method for IoT Wireless System close to Ceiling with Concrete Beam" in IEICE TRANSACTIONS on Communications,
vol. E105-B, no. 12, pp. 1540-1547, December 2022, doi: 10.1587/transcom.2022EBP3010.

Abstract: A path loss prediction formula for IoT (Internet of Things) wireless communication close to ceiling beams in the 920MHz band is presented. In first step of our investigation, we conduct simulations using the FDTD (Finite Difference Time Domain) method and propagation tests close to a beam on the ceiling of a concrete building. In the second step, we derive a path loss prediction formula from the simulation results by using the FDTD method, by dividing into three regions of LoS (line-of-sight) situation, situation in the vicinity of the beam, and NLoS (non-line-of-sight) situation, depending on the positional relationship between the beam and transmitter (Tx) and receiver (Rx) antennas. For each condition, the prediction formula is expressed by a relatively simple form as a function of height of the antennas with respect to the beam bottom. Thus, the prediction formula is very useful for the wireless site planning for the IoT wireless devices set close to concrete beam ceiling.

URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2022EBP3010/_p

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@ARTICLE{e105-b_12_1540,

author={Naotake YAMAMOTO, Taichi SASAKI, Atsushi YAMAMOTO, Tetsuya HISHIKAWA, Kentaro SAITO, Jun-ichi TAKADA, Toshiyuki MAEYAMA, },

journal={IEICE TRANSACTIONS on Communications},

title={920MHz Path Loss Prediction Formula Based on FDTD Method for IoT Wireless System close to Ceiling with Concrete Beam},

year={2022},

volume={E105-B},

number={12},

pages={1540-1547},

abstract={A path loss prediction formula for IoT (Internet of Things) wireless communication close to ceiling beams in the 920MHz band is presented. In first step of our investigation, we conduct simulations using the FDTD (Finite Difference Time Domain) method and propagation tests close to a beam on the ceiling of a concrete building. In the second step, we derive a path loss prediction formula from the simulation results by using the FDTD method, by dividing into three regions of LoS (line-of-sight) situation, situation in the vicinity of the beam, and NLoS (non-line-of-sight) situation, depending on the positional relationship between the beam and transmitter (Tx) and receiver (Rx) antennas. For each condition, the prediction formula is expressed by a relatively simple form as a function of height of the antennas with respect to the beam bottom. Thus, the prediction formula is very useful for the wireless site planning for the IoT wireless devices set close to concrete beam ceiling.},

keywords={},

doi={10.1587/transcom.2022EBP3010},

ISSN={1745-1345},

month={December},}

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TY - JOUR

TI - 920MHz Path Loss Prediction Formula Based on FDTD Method for IoT Wireless System close to Ceiling with Concrete Beam

T2 - IEICE TRANSACTIONS on Communications

SP - 1540

EP - 1547

AU - Naotake YAMAMOTO

AU - Taichi SASAKI

AU - Atsushi YAMAMOTO

AU - Tetsuya HISHIKAWA

AU - Kentaro SAITO

AU - Jun-ichi TAKADA

AU - Toshiyuki MAEYAMA

PY - 2022

DO - 10.1587/transcom.2022EBP3010

JO - IEICE TRANSACTIONS on Communications

SN - 1745-1345

VL - E105-B

IS - 12

JA - IEICE TRANSACTIONS on Communications

Y1 - December 2022

AB - A path loss prediction formula for IoT (Internet of Things) wireless communication close to ceiling beams in the 920MHz band is presented. In first step of our investigation, we conduct simulations using the FDTD (Finite Difference Time Domain) method and propagation tests close to a beam on the ceiling of a concrete building. In the second step, we derive a path loss prediction formula from the simulation results by using the FDTD method, by dividing into three regions of LoS (line-of-sight) situation, situation in the vicinity of the beam, and NLoS (non-line-of-sight) situation, depending on the positional relationship between the beam and transmitter (Tx) and receiver (Rx) antennas. For each condition, the prediction formula is expressed by a relatively simple form as a function of height of the antennas with respect to the beam bottom. Thus, the prediction formula is very useful for the wireless site planning for the IoT wireless devices set close to concrete beam ceiling.

ER -