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Distributed Multiuser MIMO for LiFi: Experiments in an Operating Room

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00351479" target="_blank" >RIV/68407700:21230/21:00351479 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1109/JLT.2021.3091385" target="_blank" >https://doi.org/10.1109/JLT.2021.3091385</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1109/JLT.2021.3091385" target="_blank" >10.1109/JLT.2021.3091385</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Distributed Multiuser MIMO for LiFi: Experiments in an Operating Room

  • Original language description

    Networked optical wireless communication, also denoted as LiFi, is expected to play an important role in so-called smart hospitals. In this paper, we present the first experimental study of LiFi in an operating room at Motol University Hospital in Prague, Czech Republic. First, we perform one-to-one measurements using an optical transmitter (Tx) and receiver (Rx) and observe that channels with a free LOS provide sufficient signal strength for mobile communication inside the operating room. Then we combine the individual LOS links into a multiple-input multiple-output (MIMO) link using four distributed transmitters representing a wireless infrastructure, and six distributed receivers representing medical devices. In this configuration, at least two strong singular values of the MIMO channel matrix are observed which allow spatial multiplexing. By appropriately clustering the transmitters and selecting the users, mobile devices can be served in parallel. For data transmission, several multiplexing schemes such as time-division multiple access (TDMA) with one and two best links, TDMA with spatial reuse, space-division multiple access (SDMA) with two best links with and without zero forcing (ZF) are considered. Results show that SDMA with ZF increases the data rate by 2.7 times compared to baseline TDMA, resulting in a total data rate of 600 Mbit/s. CCBY

  • 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

    20202 - Communication engineering and systems

Result continuities

  • Project

  • Continuities

    R - Projekt Ramcoveho programu EK

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

    IEEE/OSA Journal of Lightwave Technology

  • ISSN

    0733-8724

  • e-ISSN

    1558-2213

  • Volume of the periodical

    39

  • Issue of the periodical within the volume

    18

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    14

  • Pages from-to

    5730-5743

  • UT code for WoS article

    000703026100007

  • EID of the result in the Scopus database

    2-s2.0-85112406425