Spatial frequency-based angular behavior of a short-range flicker-free MIMO–OCC link
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00343873" target="_blank" >RIV/68407700:21230/20:00343873 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1364/AO.404378" target="_blank" >https://doi.org/10.1364/AO.404378</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/AO.404378" target="_blank" >10.1364/AO.404378</a>
Alternative languages
Result language
angličtina
Original language name
Spatial frequency-based angular behavior of a short-range flicker-free MIMO–OCC link
Original language description
In this paper, we provide a solution based on spatial frequency ????sf to study the angular behavior of a flicker-free, short-range indoor multiple–input multiple–output (MIMO) optical camera communications (OCC) link. We focus on the experimental investigation of OCC’s performance for the transmitters (Txs) [i.e., light-emitting diode (LED) based arrays] located at the same and different distances from the receiver (Rx) with the off-axis rotation angle ????. We have used two 8x8 distributed LED arrays and a commercial low-cost complementary metal-oxide-semiconductor (CMOS) Raspberry Pi camera with the rolling-shutter capturing mode as the Tx and Rx, respectively. The image and the respective communications link quality metrics are measured in terms of the peak signal-to-noise ratio (PSNR) and the rate of successfully received bits with respect to ????sf for different camera shutter speeds (SS). A CMOS image sensor noise characterization is carried in terms of the signal-to-noise ratio (SNR) and PSNR. The proposed study provides a 100% success rate in data reception at the optimum ???? of 50° at lower captured values of ????sf, which is projected onto the image sensor in the form of pixels. Moreover, the effect of channel saturation over ????sf is studied with respect to ???? and SS and we show that, for ???? exceeding the optimum value along transmission range, the ????sf area of the Txs reduces to less than ~50% of the captured Tx units at ???? of 0°, where no data can be fully recovered.
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
R - Projekt Ramcoveho programu EK
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Optics
ISSN
1559-128X
e-ISSN
2155-3165
Volume of the periodical
59
Issue of the periodical within the volume
33
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
10357-10368
UT code for WoS article
000592671500021
EID of the result in the Scopus database
2-s2.0-85096227321