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Abstract—This letter provides a comparison of indoor radio propagation measurements and corresponding channel statistics at 28, 73, and 140 GHz, based on extensive measurements from 2014-2020 in an indoor office environment. Side-by-side comparisons of propagation characteristics (e.g., large-scale path loss and multipath time dispersion) across a wide range of frequencies from the low millimeter wave band of 28 GHz to the sub-THz band of 140 GHz illustrate the key similarities and differences in indoor wireless channels. The measurements and models show remarkably similar path loss exponents over frequencies in both line-of-sight (LOS) and non-LOS (NLOS) scenarios, when using a one meter free space reference distance, while the multipath time dispersion becomes smaller at higher frequencies. The 3GPP indoor channel model overestimates the large-scale path loss and has unrealistic large numbers of clusters and multipath components per cluster compared to the measured channel statistics in this letter. Index Terms—mmWave, THz, channel models, multipath time dispersion, 5G, 6G, large-scale path loss, 3GPP InH.
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5G/6G spectrum Ray Tracing Data for Diffraction aided Positioning
We created this dataset to study Outdoor-to-Indoor (O2I) signal propagation using four UAV transmitters and 17,485 receivers positioned inside the building. For each receiver location and transmitter, we generated up to 25 multipath components by simulating six transmissions, six reflections, one diffraction, and diffused multipath (comprising two transmissions and one diffraction) using Remcom's Wireless InSite. The simulations were conducted with APG acceleration enabled, covering 5G/6G spectrum consisting of frequencies of 0.8 GHz, 2.4 GHz, 5.8 GHz, 8 GHz, 10 GHz, 15 GHz, 28 GHz, 37 GHz, and 48 GHz. The transmit power was set to 30 dBm. For each propagation path, we provide time of flight, 2D angle of arrival, 2D angle of departure, signal strength, interaction summary, number of interactions, and interaction points.
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- PAR ID:
- 10570718
- Publisher / Repository:
- IEEE DataPort
- Date Published:
- Format(s):
- Medium: X
- Right(s):
- Creative Commons Attribution 4.0 International
- Sponsoring Org:
- National Science Foundation
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