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Train Velocity and Data Throughput - A Large Scale LTE Cellular Measurements Study
KTH, School of Information and Communication Technology (ICT), Centres, Center for Wireless Systems, Wireless@kth. KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS. (Radio Systems Lab)ORCID iD: 0000-0002-3015-4495
2017 (English)In: 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), IEEE conference proceedings, 2017, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

Train-mounted aggregation routers that provide WiFi access to train passengers and bundle external communication over multiple cellular modems/links is an efficient way of providing communication services on trains. However, the characteristics of such systems have received limited attention in the literature. In this paper we address this gap by examining the communication characteristics of such systems based on a large data set gathered over six months from an operational Swedish railway system. We focus our examination on the relationship between per link throughput and train velocity. Using Levenberg- Marquardt non-linear regression a noticeable critical point is observed for an RS-SINR of around 12 dB. At this point the impact of increased train velocity on per link throughput changes from being negative to becoming positive. Using a machine learning approach we also explore the relative importance of several observed metrics in relation to per link throughput.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2017. p. 1-6
Series
IEEE Vehicular Technology Conference, ISSN 1550-2252
Keywords [en]
Long Term Evolution, Mobile communication, Modems, Throughput, Velocity measurement, Wireless fidelity
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-223339DOI: 10.1109/VTCFall.2017.8288294ISI: 000428141602054Scopus ID: 2-s2.0-85045263629ISBN: 9781509059355 (print)OAI: oai:DiVA.org:kth-223339DiVA, id: diva2:1183480
Conference
86th IEEE Vehicular Technology Conference, VTC Fall 2017, Toronto, Canada, 24 September 2017 through 27 September 2017
Note

QC 20180226

Available from: 2018-02-16 Created: 2018-02-16 Last updated: 2018-05-28Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf