Highly Accurate Vegetation Loss Model with Seasonal Characteristics for High-Altitude Platform Station

Hideki OMOTE; Akihiro SATO; Sho KIMURA; Shoma TANAKA; HoYu LIN

doi:10.1587/transcom.2021EBP3109

IEICE TRANSACTIONS on Communications

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Highly Accurate Vegetation Loss Model with Seasonal Characteristics for High-Altitude Platform Station

Hideki OMOTE, Akihiro SATO, Sho KIMURA, Shoma TANAKA, HoYu LIN

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Summary :

High-Altitude Platform Station (HAPS) provides communication services from an altitude of 20km via a stratospheric platform such as a balloon, solar-powered airship, or other aircraft, and is attracting much attention as a new mobile communication platform for ultra-wide coverage areas and disaster-resilient networks. HAPS can provide mobile communication services directly to the existing smartphones commonly used in terrestrial mobile communication networks such as Fourth Generation Long Term Evolution (4G LTE), and in the near future, Fifth Generation New Radio (5G NR). In order to design efficient HAPS-based cell configurations, we need a radio wave propagation model that takes into consideration factors such as terrain, vegetation, urban areas, suburban areas, and building entry loss. In this paper, we propose a new vegetation loss model for Recommendation ITU-R P.833-9 that can take transmission frequency and seasonal characteristics into consideration. It is based on measurements and analyses of the vegetation loss of deciduous trees in different seasons in Japan. Also, we carried out actual stratospheric measurements in the 700MHz band in Kenya to extend the lower frequency limit. Because the measured results show good agreement with the results predicted by the new vegetation loss model, the model is sufficiently valid in various areas including actual HAPS usage.

Publication: IEICE TRANSACTIONS on Communications Vol.E105-B No.10 pp.1209-1218

Publication Date: 2022/10/01

Publicized: 2022/04/13

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2021EBP3109

Type of Manuscript: PAPER

Category: Antennas and Propagation

Authors

Hideki OMOTE
  SoftBank Corp.
Akihiro SATO
  SoftBank Corp.
Sho KIMURA
  SoftBank Corp.
Shoma TANAKA
  SoftBank Corp.
HoYu LIN
  SoftBank Corp.

Keyword

mobile radio, propagation, vegetation, vegetation loss, seasonal characteristics, measurements

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Hideki OMOTE, Akihiro SATO, Sho KIMURA, Shoma TANAKA, HoYu LIN, "Highly Accurate Vegetation Loss Model with Seasonal Characteristics for High-Altitude Platform Station" in IEICE TRANSACTIONS on Communications, vol. E105-B, no. 10, pp. 1209-1218, October 2022, doi: 10.1587/transcom.2021EBP3109.
Abstract: High-Altitude Platform Station (HAPS) provides communication services from an altitude of 20km via a stratospheric platform such as a balloon, solar-powered airship, or other aircraft, and is attracting much attention as a new mobile communication platform for ultra-wide coverage areas and disaster-resilient networks. HAPS can provide mobile communication services directly to the existing smartphones commonly used in terrestrial mobile communication networks such as Fourth Generation Long Term Evolution (4G LTE), and in the near future, Fifth Generation New Radio (5G NR). In order to design efficient HAPS-based cell configurations, we need a radio wave propagation model that takes into consideration factors such as terrain, vegetation, urban areas, suburban areas, and building entry loss. In this paper, we propose a new vegetation loss model for Recommendation ITU-R P.833-9 that can take transmission frequency and seasonal characteristics into consideration. It is based on measurements and analyses of the vegetation loss of deciduous trees in different seasons in Japan. Also, we carried out actual stratospheric measurements in the 700MHz band in Kenya to extend the lower frequency limit. Because the measured results show good agreement with the results predicted by the new vegetation loss model, the model is sufficiently valid in various areas including actual HAPS usage.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2021EBP3109/_p

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@ARTICLE{e105-b_10_1209,
author={Hideki OMOTE, Akihiro SATO, Sho KIMURA, Shoma TANAKA, HoYu LIN, },
journal={IEICE TRANSACTIONS on Communications},
title={Highly Accurate Vegetation Loss Model with Seasonal Characteristics for High-Altitude Platform Station},
year={2022},
volume={E105-B},
number={10},
pages={1209-1218},
abstract={High-Altitude Platform Station (HAPS) provides communication services from an altitude of 20km via a stratospheric platform such as a balloon, solar-powered airship, or other aircraft, and is attracting much attention as a new mobile communication platform for ultra-wide coverage areas and disaster-resilient networks. HAPS can provide mobile communication services directly to the existing smartphones commonly used in terrestrial mobile communication networks such as Fourth Generation Long Term Evolution (4G LTE), and in the near future, Fifth Generation New Radio (5G NR). In order to design efficient HAPS-based cell configurations, we need a radio wave propagation model that takes into consideration factors such as terrain, vegetation, urban areas, suburban areas, and building entry loss. In this paper, we propose a new vegetation loss model for Recommendation ITU-R P.833-9 that can take transmission frequency and seasonal characteristics into consideration. It is based on measurements and analyses of the vegetation loss of deciduous trees in different seasons in Japan. Also, we carried out actual stratospheric measurements in the 700MHz band in Kenya to extend the lower frequency limit. Because the measured results show good agreement with the results predicted by the new vegetation loss model, the model is sufficiently valid in various areas including actual HAPS usage.},
keywords={},
doi={10.1587/transcom.2021EBP3109},
ISSN={1745-1345},
month={October},}

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TY - JOUR
TI - Highly Accurate Vegetation Loss Model with Seasonal Characteristics for High-Altitude Platform Station
T2 - IEICE TRANSACTIONS on Communications
SP - 1209
EP - 1218
AU - Hideki OMOTE
AU - Akihiro SATO
AU - Sho KIMURA
AU - Shoma TANAKA
AU - HoYu LIN
PY - 2022
DO - 10.1587/transcom.2021EBP3109
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E105-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2022
AB - High-Altitude Platform Station (HAPS) provides communication services from an altitude of 20km via a stratospheric platform such as a balloon, solar-powered airship, or other aircraft, and is attracting much attention as a new mobile communication platform for ultra-wide coverage areas and disaster-resilient networks. HAPS can provide mobile communication services directly to the existing smartphones commonly used in terrestrial mobile communication networks such as Fourth Generation Long Term Evolution (4G LTE), and in the near future, Fifth Generation New Radio (5G NR). In order to design efficient HAPS-based cell configurations, we need a radio wave propagation model that takes into consideration factors such as terrain, vegetation, urban areas, suburban areas, and building entry loss. In this paper, we propose a new vegetation loss model for Recommendation ITU-R P.833-9 that can take transmission frequency and seasonal characteristics into consideration. It is based on measurements and analyses of the vegetation loss of deciduous trees in different seasons in Japan. Also, we carried out actual stratospheric measurements in the 700MHz band in Kenya to extend the lower frequency limit. Because the measured results show good agreement with the results predicted by the new vegetation loss model, the model is sufficiently valid in various areas including actual HAPS usage.
ER -

IEICE TRANSACTIONS on Communications