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Barth, Benjamin and Hegde, Anupama Ramesh and Scalise, Sandro and Brizzi, Alessandro and Iacurto, Cristian and Schena, Vincenzo (2025) The 5G-Non-Terrestrial Network Channel in a Railway Environment: Characteristics and Required Subcarrier Spacing. IEEE Vehicular Technology Magazine, 20 (3), 78 -86. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/MVT.2025.3582092. ISSN 1556-6072.
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Abstract
The railway industry is specifying the Future Railway Mobile Communication System (FRMCS), which will be the successor of the currently used GSM-R. It is a 5G-based system with the possibility for nonterrestrial networks (NTNs). However, the rail track-side environment introduces several specific impairments for an NTN system. In order to investigate the performance of a 5G-NTN system, a channel model is derived based on the literature, and gaps are identified. The model is defined for different orbits and elevation angles. Implementation alternatives are outlined. The periodic fading introduced by overhead power supply structures, such as portals and power supply poles, is found to have the strongest influence in the railway environment. Using the model in 5G-NTN transceiver simulations, we found that a subcarrier spacing (SCS) of 60 kHz is sufficient for S band, while 240 kHz is needed for Ka band.
| Item URL in elib: | https://elib.dlr.de/217124/ | ||||||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||||||
| Additional Information: | ESA | ||||||||||||||||||||||||||||
| Title: | The 5G-Non-Terrestrial Network Channel in a Railway Environment: Characteristics and Required Subcarrier Spacing | ||||||||||||||||||||||||||||
| Authors: |
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| Date: | September 2025 | ||||||||||||||||||||||||||||
| Journal or Publication Title: | IEEE Vehicular Technology Magazine | ||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||
| Volume: | 20 | ||||||||||||||||||||||||||||
| DOI: | 10.1109/MVT.2025.3582092 | ||||||||||||||||||||||||||||
| Page Range: | 78 -86 | ||||||||||||||||||||||||||||
| Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||||||||||||||||||
| ISSN: | 1556-6072 | ||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||
| Keywords: | Satellites;Ka-band;5G mobile communication;3GPP;Portals;Low earth orbit satellites;Fading channels;Extraterrestrial measurements;Directive antennas;Power supplies;Railway communication | ||||||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||
| HGF - Program: | Space | ||||||||||||||||||||||||||||
| HGF - Program Themes: | Communication, Navigation, Quantum Technology | ||||||||||||||||||||||||||||
| DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||
| DLR - Program: | R KNQ - Communication, Navigation, Quantum Technology | ||||||||||||||||||||||||||||
| DLR - Research theme (Project): | R - Project Global Connectivity - Sat | ||||||||||||||||||||||||||||
| Location: | Oberpfaffenhofen | ||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute of Communication and Navigation > Satellite Networks | ||||||||||||||||||||||||||||
| Deposited By: | Barth, Benjamin | ||||||||||||||||||||||||||||
| Deposited On: | 02 Oct 2025 13:14 | ||||||||||||||||||||||||||||
| Last Modified: | 02 Oct 2025 13:14 |
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