Paul Unterhuber

Wideband Train-to-Train Channel Model


Front	Back

ISBN:

978-3-8440-8921-9

Series:

Mitteilungen aus dem Institut für Nachrichtentechnik der Technischen Universität Braunschweig
Herausgeber: Prof. Dr.-Ing. U. Reimers, Prof. Dr.-Ing. T. Kürner and Prof. Dr.-Ing. T. Fingscheidt
Braunschweig

Volume:

Keywords:

Train-to-Train Propagation; Channel Sounding; Geometry-Based Stochastic Channel Model; Railway Communications

Type of publication:

Thesis

Language:

English

Pages:

160 pages

Figures:

54 figures

Weight:

215 g

Format:

21 x 14,8 cm

Bindung:

Paperback

Price:

48,80 € / 61,10 SFr

Published:

January 2023

Buy:

DOI:

10.2370/9783844089219 (Online document)

Download:

Available PDF-Files for this title:

You need the Adobe Reader, to open the files. Here you get help and information, for the download.

These files are not printable.


	Document		Abstract
	Type		PDF
	Costs		free
	Action		Display of file - 280 kB (286883 Byte)
	Action		Download of file - 280 kB (286883 Byte)


	Document		Document
	Type		PDF
	Costs		36,60 EUR
	Action		Purchase in obligation and display of file - 12,8 MB (13455218 Byte)
	Action		Purchase in obligation and download of file - 12,8 MB (13455218 Byte)


	Document		Table of contents
	Type		PDF
	Costs		free
	Action		Display of file - 330 kB (338178 Byte)
	Action		Download of file - 330 kB (338178 Byte)

User settings for registered users

You can change your address here or download your paid documents again.

User:	Not logged in.
Actions:	Login / Register Forgotten your password?

Recommendation:

You want to recommend this title?

Review copy:

Here you can order a review copy.

Link:

You want to link this page? Click here.

Export citations:

Text
BibTex
RIS

Abstract:

Due to the continuous growth of passenger and freight transport and the simultaneous effort to reduce global greenhouse gas emissions, many countries are relying on railways. To increase efficiency and to ensure safety, novel operational concepts such as virtual coupling or autonomously driving trains are being developed. These concepts require reliable and low-latency communication. Future communication standards will improve existing railway communications and enable highly reliable and low-latency train-to-train (T2T) communication. In order to achieve the required reliability, the propagation conditions must be taken into account when designing the radio systems. For safety critical applications, the investigation of correlated error events is of great interest. Hence, the channel model has to reflect the time-variant behaviour of the propagation channel. Suitable channel models for T2T communications were not available until now.

In this dissertation a wideband T2T channel model is proposed. The channel model is based on C-band measurements. For this reason, the worldwide first wideband T2T channel sounding measurement campaign was conducted. Due to the changing environment and the moving transmitter and moving receiver the propagation channel is shown to exhibit non-wide-sense stationary uncorrelated scattering. The time-frequency-variant measurement data is analysed, the quasi-stationarity region is evaluated and the time-variant spreading function is derived. Based on the spreading function stochastic channel parameters for typical railway environments are estimated. Pronounced multipath components are isolated, tracked and assigned to elements along the railway track. A new metric called scattering loss is introduced to describe the influence of an element on the fading of the multipath component.

To reflect the time-variant behaviour of the channel and the typical geometry of railway environments a geometry-based stochastic channel model (GSCM) for T2T communications is introduced. The GSCM considers all relevant propagation phenomena and various railway manoeuvres. The GSCM is parametrized for an open field and a hilly terrain with cutting environment, and validated against measurement data. The quality of the channel model is accessed by qualitative and quantitative methods and shows an excellent representation or the propagation conditions for T2T communications in typical railway environments. This T2T GSCM is now available for the development of future railway communication standards.