Optical Filter-Less WDM for Visible Light Communications Using Defocused MIMO
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00349899" target="_blank" >RIV/68407700:21230/21:00349899 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/electronics10091065" target="_blank" >https://doi.org/10.3390/electronics10091065</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/electronics10091065" target="_blank" >10.3390/electronics10091065</a>
Alternative languages
Result language
angličtina
Original language name
Optical Filter-Less WDM for Visible Light Communications Using Defocused MIMO
Original language description
This paper experimentally investigates, for the first time, a new wavelength-division multiplexing-based visible light communications link based on a defocused non-imaging multiple-input multiple-output (MIMO), which removes the need for tuned optical bandpass filters paired with each receiver. The proposed system is based on using the natural diversity of the individual light emitting diodes (LEDs) within a single light source to generate an H-matrix, which is independent of spatial diversity. We show that, by transmitting K-independent sets of non-return to zero on-and-off keying signals on separate wavelengths, the received superposed symbols can be demultiplexed. The non-imaging MIMO diversity is achieved by considering the power-current characteristics of the light emitting diode, the responsivity of the photodetector array, and the defocused beam spot. The system is empirically verified for K = 3 using red, green, and blue LEDs with Q-factors of 7.66, 7.69, and 4.75 dB, respectively.
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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Electronics
ISSN
2079-9292
e-ISSN
2079-9292
Volume of the periodical
10
Issue of the periodical within the volume
April
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
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UT code for WoS article
000649986100001
EID of the result in the Scopus database
2-s2.0-85105012155