FFT-Based Frequency Detection and Interference Analysis for NLOS MIMO-OCC
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00376148" target="_blank" >RIV/68407700:21230/24:00376148 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/ACCESS.2024.3428347" target="_blank" >https://doi.org/10.1109/ACCESS.2024.3428347</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ACCESS.2024.3428347" target="_blank" >10.1109/ACCESS.2024.3428347</a>
Alternative languages
Result language
angličtina
Original language name
FFT-Based Frequency Detection and Interference Analysis for NLOS MIMO-OCC
Original language description
In this paper, we provide a solution based on fast Fourier Transform (FFT) for frequency detection and interference analysis in a non-line-of-sight (NLOS) multiple-input multiple-output (MIMO) optical camera communications (OCC) link. The proposed NLOS MIMO-OCC uses two organic light-emitting diodes (OLEDs) and a camera as transmitters (Txs) and the receiver, respectively, and reflections from various surfaces such as plain wall, paper and wooden surfaces. In this paper, for the first time, we analyze the performance of NLOS MIMO-OCC for two indoor scenarios utilizing two OLED Txs that are in phase and modulated at the same modulation frequency fs and especially when they are out of phase and under different fs . We carry out FFT for fs detection and interference analysis for OLEDs operating at different phases and fs . To analyze the performance of NLOS MIMO-OCC, first FFT-based fs detection is performed to identify Txs followed by evaluation of the reception success rates Rrs for a range of camera exposure times texp and the gain Gv for a given fs . The results show that for two OLEDs in phase and different phases at texp of 1500, Gv of 45 dB and a link span of 2 m, Rrs of 94% is achieved at fs of 600 Hz for the plain wall and paper reflectors. For interference analysis, the proposed FFT analysis gives accurate, i.e., 100 % fs detection in all the above cases.
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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Access
ISSN
2169-3536
e-ISSN
2169-3536
Volume of the periodical
12
Issue of the periodical within the volume
July
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
99137-99148
UT code for WoS article
001276357000001
EID of the result in the Scopus database
2-s2.0-85199039345