Directional and Quasi-Omnidirectional Indoor Channel Measurements at Upper 6 GHz
Abstract
This paper presents wideband indoor channel measurements and measurement-based statistical modeling of channel parameters in the upper 6 GHz (U6G) band using directional and quasi-omnidirectional antenna pairs. Measurements span 6.425-7.125 GHz at 32 matched positions per configuration in an open hall and an L-shaped corridor. System calibration and frequency-dependent peak-gain normalization retain antenna radiation-pattern weighting. Close-in and floating-intercept models are fitted to line-of-sight (LOS) and non-LOS (NLOS) path loss, respectively. Shadow-fading residuals, RMS delay spread (DS), and equivalent K factors derived from power delay profiles are characterized. LOS exponents range from 1.98 to 2.14. Despite similar attenuation slopes, directional links exhibit smaller LOS residuals and DS and higher equivalent K factors. Hall DS medians are 1.78 and 36.52 ns for directional and quasi-omnidirectional links. Corridor NLOS slopes are -1.12 and 2.54, respectively, while DS ordering varies by position. These results characterize antenna-dependent parameters for U6G indoor channels.
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BibTeX
@misc{fu2026directional,
title = {{Directional and Quasi-Omnidirectional Indoor Channel Measurements at Upper 6 GHz}},
author = {Chengsong Fu and Hongbo Zhao and Jianer Zhou and Xiongbin Yu and Weichao Li and Chen Zhuang and Meng Li and Wenquan Feng and Xiaofeng Tao},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.14890},
eprint = {2610.14890},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.14890},
note = {CC BY-NC-SA 4.0},
}
RIS
TY - UNPB
TI - Directional and Quasi-Omnidirectional Indoor Channel Measurements at Upper 6 GHz
AU - Chengsong Fu
AU - Hongbo Zhao
AU - Jianer Zhou
AU - Xiongbin Yu
AU - Weichao Li
AU - Chen Zhuang
AU - Meng Li
AU - Wenquan Feng
AU - Xiaofeng Tao
PY - 2026
DA - 2026/10/14
PB - arXiv
DO - 10.48550/arxiv.2610.14890
UR - https://arxiv.org/abs/2610.14890
AB - This paper presents wideband indoor channel measurements and measurement-based statistical modeling of channel parameters in the upper 6 GHz (U6G) band using directional and quasi-omnidirectional antenna pairs. Measurements span 6.425-7.125 GHz at 32 matched positions per configuration in an open hall and an L-shaped corridor. System calibration and frequency-dependent peak-gain normalization retain antenna radiation-pattern weighting. Close-in and floating-intercept models are fitted to line-of-sight (LOS) and non-LOS (NLOS) path loss, respectively. Shadow-fading residuals, RMS delay spread (DS), and equivalent K factors derived from power delay profiles are characterized. LOS exponents range from 1.98 to 2.14. Despite similar attenuation slopes, directional links exhibit smaller LOS residuals and DS and higher equivalent K factors. Hall DS medians are 1.78 and 36.52 ns for directional and quasi-omnidirectional links. Corridor NLOS slopes are -1.12 and 2.54, respectively, while DS ordering varies by position. These results characterize antenna-dependent parameters for U6G indoor channels.
ER -