Performance Analysis of Hybrid FSO Systems Using FSO/RF-FSO Link Adaptation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F18%3APU129677" target="_blank" >RIV/00216305:26220/18:PU129677 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/8360015" target="_blank" >https://ieeexplore.ieee.org/document/8360015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/JPHOT.2018.2837356" target="_blank" >10.1109/JPHOT.2018.2837356</a>
Alternative languages
Result language
angličtina
Original language name
Performance Analysis of Hybrid FSO Systems Using FSO/RF-FSO Link Adaptation
Original language description
Free-space optical (FSO) links are considered as cost-effective, non-invasive alternative to fiber optic cables for 5G cellular backhaul networking. For FSO based backhaul networks we propose an additional millimeter-wavelength (MMW) radio-frequency (RF)-FSO link, used as a backup. Uninterrupted and reliable network connection is possible by switching between primary FSO link and the secondary RF-FSO link; when the primary link is under atmospheric turbulence, the secondary link maintains connectivity as the MMW RF link exhibits complementary characteristics to atmospheric effects. In order to analytically assess the improvement, we also derive concise mathematical expressions for different performance metrics like outage probability, average bit error rate (BER) and capacity. Our results demonstrate that FSO/RF-FSO topology performs better than a single FSO link in terms of outage probability and BER. The dual-hop mixed RF-FSO link is realized with an amplify and forward (AF) relay that adapts an average power scaling (APS) strategy. The irradiance fluctuations in the FSO links are modeled by gamma-gamma distribution assuming strong atmospheric turbulence while it is assumed that the RF link experiences multipath Rayleigh fading. For switching between links a single FSO threshold is considered first, followed by a dual FSO threshold to prevent unnecessary switching.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20202 - Communication engineering and systems
Result continuities
Project
<a href="/en/project/GA17-27068S" target="_blank" >GA17-27068S: Mobile channel analysis and modelling in millimeter wave band</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Photonics Journal
ISSN
1943-0655
e-ISSN
1943-0647
Volume of the periodical
10
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
18
Pages from-to
1-18
UT code for WoS article
000436928700001
EID of the result in the Scopus database
2-s2.0-85047009167