Impact of Link Parameters and Channel Correlation on the Performance of FSO Systems with Differential Signalling Technique
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F17%3A00305232" target="_blank" >RIV/68407700:21230/17:00305232 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1364/JOCN.9.000138" target="_blank" >http://dx.doi.org/10.1364/JOCN.9.000138</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/JOCN.9.000138" target="_blank" >10.1364/JOCN.9.000138</a>
Alternative languages
Result language
angličtina
Original language name
Impact of Link Parameters and Channel Correlation on the Performance of FSO Systems with Differential Signalling Technique
Original language description
We investigate the effects of link parameters and the channel correlation coefficient (CC) on the detection threshold, Q-factor, and bit-error-rate (BER) of a free space optical system employing the differential signalling (DS) scheme. In systems employing DS scheme, the mean value of the signal is used as the detection threshold level, provided that differential links are identical or highly correlated. However, in reality the underlying links are not essentially identical and have a low level of correlation. To show the significance of the link parameters as well as CC, we derive analytical relations describing the effect of weak turbulence and we determine the improvement of Q-factor with the channel correlation. Further, for the same signal-to-noise ratio, we demonstrate that a link with a higher extinction ratio offers an improved performance. We also propose a closed-form expression of the system BER. We present experimental results showing improved Q-factor for the correlated channel case, compared to the uncorrelated channel.
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
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Optical Communications and Networking
ISSN
1943-0620
e-ISSN
1943-0639
Volume of the periodical
9
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
138-148
UT code for WoS article
000395889500002
EID of the result in the Scopus database
2-s2.0-85013393567