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Channel Modelling and Wireless Propagation Challenges for mmWaves in Railways

Sand, Stephan and Unterhuber, Paul and Raulefs, Ronald and Yang, Kun and Berbineau, Marion and Iñaki, Val and Arriola, Aitor and d'Atri, Maurizio and Tavano, Fabrizio and Moreno García-Loygorri, Juan (2017) Channel Modelling and Wireless Propagation Challenges for mmWaves in Railways. In: Wireless World Research Forum. Wireless World Research Forum (WWRF) 38, 28.-30.03.2017, Hsinchu, Taiwan.

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This contribution discusses the channel modelling and wireless propagation challenges in the mmWave regime regarding mobility in railway environments. First, we will explain specific railway applications and their requirements on wireless communications such as virtual coupling and autonomous trains as well as high data rate links for external control or passengers. We will also present specifics with respect to the railway environment, e.g. the predictable movement of trains, large curve radius of railway tracks, obstacles such as catenaries, and scenarios like tunnels, bridges, viaducts, and cuttings. Next, we discuss the theory of stationarity and spatial coherence for channel modelling with implications on the mmWave regime and dynamic train measurements. Then, we consider the pros and cons of different channel modelling approaches such as stochastic, geometric-stochastic, and ray tracing-based channel models. Subsequently, we review issues related to the measurement equipment, e.g. train certified antennas and the synchronization of the transmitter and receiver. Then, we recapitulate three measurement campaigns, one for high-speed trains, one for metro and urban trains, and one for regional trains as well as lessons learned of these and first results for mmWave propagation. To conclude, we will discuss future work including but not limited to “how-to find the beam” for directional antennas, vibration issues, weather influence, and localization of the moving train.

Item URL in elib:https://elib.dlr.de/112471/
Document Type:Conference or Workshop Item (Speech)
Additional Information:The authors are thankful for the support of the European Commission through the Roll2Rail project [7], one of the lighthouse projects of Shift2Rail [11] within the Horizon 2020 program. The Roll2Rail project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No 636032.
Title:Channel Modelling and Wireless Propagation Challenges for mmWaves in Railways
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Sand, StephanStephan.Sand (at) dlr.deUNSPECIFIED
Unterhuber, PaulPaul.Unterhuber (at) dlr.deUNSPECIFIED
Raulefs, RonaldRonald.Raulefs (at) dlr.dehttps://orcid.org/0000-0002-3409-6640
d'Atri, MaurizioTrenitaliaUNSPECIFIED
Tavano, FabrizioTrenitaliaUNSPECIFIED
Moreno García-Loygorri, JuanMetro de MadridUNSPECIFIED
Date:29 March 2017
Journal or Publication Title:Wireless World Research Forum
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:train-to-train, channel sounding, channel modelling, railway measurements
Event Title:Wireless World Research Forum (WWRF) 38
Event Location:Hsinchu, Taiwan
Event Type:international Conference
Event Dates:28.-30.03.2017
Organizer:Wireless World Research Forum (WWRF)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Next Generation Train III (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Sand, Dr Stephan
Deposited On:02 Jun 2017 16:21
Last Modified:20 Jun 2021 15:49

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