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Train Velocity and ...
Train Velocity and Data Throughput : A Large Scale LTE Cellular Measurements Study
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- Garcia, Johan, 1970- (författare)
- Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Distributed systems and communication (DISCO)
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- Alfredsson, Stefan, 1976- (författare)
- Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Distributed systems and communication (DISCO)
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- Brunström, Anna, 1967- (författare)
- Karlstads universitet,Institutionen för matematik och datavetenskap (from 2013),Distributed systems and communication (DISCO)
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- Beckman, Claes, 1962- (författare)
- KTH,KTH Center för Trådlösa System, Wireless@kth,Kommunikationssystem, CoS,Radio Systems Lab,Center for Wireless Systems, KTH
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(creator_code:org_t)
- New York : IEEE, 2017
- 2017
- Engelska.
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Ingår i: Proceedings of the 2017 IEEE 86th Vehicular Technology Conference (VTC Fall). - New York : IEEE. - 9781509059355 ; , s. 1-6
- Relaterad länk:
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https://kau.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Cellular networks
- LTE
- 4G
- Trains
- Computer Science
- Datavetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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