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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20201 - Electrical and electronic engineering

Result continuities

  • Project

  • 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