Sectorised base stations for FSO ground-to-train communications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00342444" target="_blank" >RIV/68407700:21230/20:00342444 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1049/iet-opt.2019.0155" target="_blank" >https://doi.org/10.1049/iet-opt.2019.0155</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1049/iet-opt.2019.0155" target="_blank" >10.1049/iet-opt.2019.0155</a>

Result language

angličtina

Original language name

Sectorised base stations for FSO ground-to-train communications

Original language description

Evolution and accessibility of smart-phones have led to a huge demand in network bandwidth. The ubiquitous use of smart-phones in high-speed trains poses a unique challenge in delivering high-speed internet service on board. This challenge can be overcome by employing free-space optics, an alternative to radio-frequency technology. Previous coverage models for ground–train communications employed single laser systems with a larger divergence angle to cover a larger distance. Larger divergence angles lead to larger geometric losses, which may result in a non-reliable communication link. This study proposes a sectorised multi-beam coverage model with a smaller divergence angle to reduce the impact of geometric losses in the system. This study also proposes two receiver (Rx) architectures for Rxs deployed on the train. Along with geometric losses, the atmospheric attenuation is taken into consideration for the FSO link. The performance of the ground–train communications system in terms of bit-error-rate is evaluated under weak turbulence conditions via numerical simulation.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20202 - Communication engineering and systems

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IET Optoelectronics

ISSN

1751-8768

e-ISSN

1751-8776

Volume of the periodical

14

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

312-318

UT code for WoS article

000572412700013

EID of the result in the Scopus database

2-s2.0-85091589634