About: Modelling and Analysis of FSO Ground-to-Train Communications for Straight and Curved Tracks

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this work, a free space optical (FSO) link for the ground-to-train communications is proposed. Analytical analysis is carried out for the case of the straight track as well as curved rail tracks. We show that the transmitter divergence angle, the transmit power and the size of the concentration lens needs to increase for the curved section of the rail track compared to the straight track. We derive the analytical expression (11) for the received power level along the rail tracks based on the link geometry for the cases of straight and curved tracks. The received power variation is compared for two cases showing a similar dynamic range. In the worst case scenario when the radius of curvature is 120 m the transmit power at the base station (BS) needs to increase by over 2 dB when the concentration lens radius is increased by 5 times. Analyses also show that the received power increases with the radius of curvature. Finally, results are compared with the existing straight track model. In this work, a free space optical (FSO) link for the ground-to-train communications is proposed. Analytical analysis is carried out for the case of the straight track as well as curved rail tracks. We show that the transmitter divergence angle, the transmit power and the size of the concentration lens needs to increase for the curved section of the rail track compared to the straight track. We derive the analytical expression (11) for the received power level along the rail tracks based on the link geometry for the cases of straight and curved tracks. The received power variation is compared for two cases showing a similar dynamic range. In the worst case scenario when the radius of curvature is 120 m the transmit power at the base station (BS) needs to increase by over 2 dB when the concentration lens radius is increased by 5 times. Analyses also show that the received power increases with the radius of curvature. Finally, results are compared with the existing straight track model. (en)
Title	Modelling and Analysis of FSO Ground-to-Train Communications for Straight and Curved Tracks Modelling and Analysis of FSO Ground-to-Train Communications for Straight and Curved Tracks (en)
skos:prefLabel	Modelling and Analysis of FSO Ground-to-Train Communications for Straight and Curved Tracks Modelling and Analysis of FSO Ground-to-Train Communications for Straight and Curved Tracks (en)
skos:notation	RIV/00216305:26220/13:PU103786!RIV14-MPO-26220___
http://linked.open...avai/predkladatel	Fakulta elektrotechniky a komunikačních technologií
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0072), P(EE2.3.20.0007), P(FR-TI2/705), P(GAP102/11/1376), P(LD12067)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Poliak, Juraj
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	88917
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/13:PU103786
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	free space optical, ground-to-train, base station, link geometry (en)
http://linked.open.../riv/klicoveSlovo	base station free space optical ground-to-train link geometry
http://linked.open...ontrolniKodProRIV	[A0B06A7B5273]
http://linked.open...v/mistoKonaniAkce	Gothenburg (Sweden)
http://linked.open...i/riv/mistoVydani	Neuveden
http://linked.open...i/riv/nazevZdroje	Proceedings of the European Conference on Antennas and Propagation, EuCAP 2013
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Wireless communication teams *Non-contact optical measuring methods and systems for precise engineering Centre of sensor, information and communication systems Effect of Propagation Impairments on Error Performance of Future Broadband Terrestrial Wireless Systems Optical atmospheric propagation modeling
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Poliak, Juraj Leitgeb, Erich Ghassemlooy, Zabih Paudel, Rupak
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000327126002221
http://linked.open.../riv/zahajeniAkce	2013-04-08 (xsd:date)
number of pages	5 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Neuveden
https://schema.org/isbn	978-88-907018-3-2
http://localhost/t...ganizacniJednotka	26220

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