Practical Implementation and Performance Study of a Hard-Switched Hybrid FSO/RF Link under Controlled Fog Environment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F14%3A00218844" target="_blank" >RIV/68407700:21230/14:00218844 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/CSNDSP.2014.6923856" target="_blank" >http://dx.doi.org/10.1109/CSNDSP.2014.6923856</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CSNDSP.2014.6923856" target="_blank" >10.1109/CSNDSP.2014.6923856</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Practical Implementation and Performance Study of a Hard-Switched Hybrid FSO/RF Link under Controlled Fog Environment

Popis výsledku v původním jazyce

The availability and performance of terrestrial free-space optical (FSO) communication systems are heavily deterred by the fluctuating conditions of the atmospheric channel, particularly in the presence of visibility-limiting fog effects. In this paper,we examine the viability of deploying hybrid FSO and radio frequency (RF) links through an experimental study, which takes advantage of a dedicated laboratory atmospheric chamber to emulate the fog scenarios encountered on outdoor environment. In particular, a root mean square power detector is developed and introduced in the system under study to monitor the signal quality of the primary FSO link. The quasi-linear output voltage characteristics of the power detector device is utilized as a useful decision metric to implement hard switching in a hybrid FSO/RF link based upon the changes in the visibility. Our measurement results reveal that the selection of a desirable threshold voltage is dependent upon the intended data rate and minim

Název v anglickém jazyce

Practical Implementation and Performance Study of a Hard-Switched Hybrid FSO/RF Link under Controlled Fog Environment

Popis výsledku anglicky

The availability and performance of terrestrial free-space optical (FSO) communication systems are heavily deterred by the fluctuating conditions of the atmospheric channel, particularly in the presence of visibility-limiting fog effects. In this paper,we examine the viability of deploying hybrid FSO and radio frequency (RF) links through an experimental study, which takes advantage of a dedicated laboratory atmospheric chamber to emulate the fog scenarios encountered on outdoor environment. In particular, a root mean square power detector is developed and introduced in the system under study to monitor the signal quality of the primary FSO link. The quasi-linear output voltage characteristics of the power detector device is utilized as a useful decision metric to implement hard switching in a hybrid FSO/RF link based upon the changes in the visibility. Our measurement results reveal that the selection of a desirable threshold voltage is dependent upon the intended data rate and minim

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/LD12058" target="_blank" >LD12058: Výzkum okolních vlivů na nové širokopásmové bezdrátové optické systémy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

2014 9th International Symposium on Communication Systems, Networks & Digital Signal Processing

ISBN

978-1-4799-2581-0

ISSN

—

e-ISSN

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Počet stran výsledku

6

Strana od-do

368-373

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Manchester

Datum konání akce

23. 7. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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