Site-Specific Measurement and Analysis of Building Entry Loss in High-Rise Buildings Across 1 to 30 GHz

Site-Specific Measurement and Analysis of Building Entry Loss in High-Rise Buildings Across 1 to 30 GHz

This study investigated a site-specific approach to building entry loss to enable robust mobile wireless access for non-terrestrial networks using high-altitude platform stations and highly efficient fixed wireless access for terrestrial networks. In this study, outdoor-to-indoor propagation measure...

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Bibliographic Details
Main Authors: Shoma Tanaka, Sho Kimura, Ho-Yu Lin, Akihiro Sato, Hideki Omote
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
Subjects:
Building entry loss
high-altitude platform station
measurement
millimeter-wave
modeling
outdoor-to-indoor propagation
Online Access:https://ieeexplore.ieee.org/document/10980286/
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Summary:This study investigated a site-specific approach to building entry loss to enable robust mobile wireless access for non-terrestrial networks using high-altitude platform stations and highly efficient fixed wireless access for terrestrial networks. In this study, outdoor-to-indoor propagation measurements were conducted in two distinct high-rise office buildings. These measurements considered various incident elevation and azimuth angles relative to the building façade and different indoor antenna locations. One set of measurements was performed using a helicopter at 1.47 GHz and 3.35 GHz, and the other set of measurements was conducted along a terrestrial path at 3.35 GHz and 29.3 GHz. Based on the obtained measurement results and geometrical optics theory, we analyzed the site-specific building entry loss, observing the nonmonotonic characteristics with the indoor entry distance. Based on the results, we propose a model that incorporates various parameters, e.g., the locations of the outdoor and indoor stations, as well as the dimensions of the building rooms and windows. Compared with standardized frameworks and existing models, the proposed model effectively characterized the site-specific building entry loss and demonstrated higher predictive accuracy on measured data for frequencies from 1 to 30 GHz.
ISSN:2169-3536

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