Influence of Typical Railway Objects in mmWave Propagation Channel

He, Danping and Ai, Bo and Guan, Ke and Moreno García-Loygorri, Juan and Zhong, Zhangdui and Hrovat, Andrej (2017). Influence of Typical Railway Objects in mmWave Propagation Channel. "IEEE Transactions on Vehicular Technology", v. 67 (n. 2018); pp.. ISSN 0018-9545. https://doi.org/10.1109/TVT.2017.2782268.

Description

Title: Influence of Typical Railway Objects in mmWave Propagation Channel
Author/s:
  • He, Danping
  • Ai, Bo
  • Guan, Ke
  • Moreno García-Loygorri, Juan
  • Zhong, Zhangdui
  • Hrovat, Andrej
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Vehicular Technology
Date: 11 December 2017
ISSN: 0018-9545
Volume: 67
Subjects:
Freetext Keywords: Material characterization; millimeter wave; propagation channel; radio propagation measurement; railway communications; ray tracing simulation
Faculty: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Department: Teoría de la Señal y Comunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In the future railway services, wireless communication is the fundamental part and millimeter wave (mmWave) is foreseen to be a key enabler towards the smart railway. An accurate understanding of the propagation environment can assist designing both systems and railway infrastructures for better communication services. In this paper, the influence of typical objects to the mmWave propagation channel are analyzed for “Train-to-infrastructure” and “Intra-wagon” railway scenarios with various configurations. Propagation measurements are conducted in the mmWave band for the 12 most common railway materials. The corresponding electromagnetic parameters are obtained and a 3D ray tracing (RT) simulator is calibrated. The mean absolute error of the simulated S21 parameter is -53.5 dB, indicating that the calibrated RT can be used to generate the close-to-real mmWave channel for railway scenarios. Statistically consistent scenarios and deployments are generated, which enables drawing unbiased numerical results based on intensive RT simulations. The influence of typical objects and corresponding material compositions are then compared and significant objects are determined for each scenario. The results of this work not only imply how the propagation environment impacts on the propagation channel, but also makes suggestions to efficiently reconstruct railway environment models for an accurate RT based channel model. Moreover, the understanding of the influence of the environment at object and material levels will in turn guide the construction of railway infrastructure for better railway services.

More information

Item ID: 53576
DC Identifier: http://oa.upm.es/53576/
OAI Identifier: oai:oa.upm.es:53576
DOI: 10.1109/TVT.2017.2782268
Official URL: https://ieeexplore.ieee.org/document/8186199
Deposited by: Memoria Investigacion
Deposited on: 31 Jan 2019 15:00
Last Modified: 31 Jan 2019 15:00
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