Filter-less WDM for visible light communications using colored pulse amplitude modulation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00333012" target="_blank" >RIV/68407700:21230/19:00333012 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1364/OL.44.004849" target="_blank" >https://doi.org/10.1364/OL.44.004849</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OL.44.004849" target="_blank" >10.1364/OL.44.004849</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Filter-less WDM for visible light communications using colored pulse amplitude modulation

Popis výsledku v původním jazyce

This paper demonstrates, for the first time, a new wavelength-division multiplexing (WDM) scheme for visible light communications using multi-level coloured pulse amplitude modulation (M-CPAM). Unlike traditional WDM, no optical bandpass filters are required and only a single optical detector is used. We show that, by transmitting n independent sets of weighted on-off keying non-return-to-zero data on separate wavelengths over a line-of-sight transmission path, the resultant additive symbols can be successfully demodulated. Hence, the data rates can be aggregated for a single user or divided into individual colours for multiple user access schemes. The system is empirically tested for M = 4 and 8 using an off-the-shelf red, green and blue (RGB) chip light emitting diode (LED). We demonstrate that for M = 4, using the R and B chips a bit error rate (BER) of <=10-6 can be achieved for each wavelength at bit rates up to 10 Mbps, limited by the LEDs under test. For M = 8 using R, G and B a BER of <=10-6 can be achieved for each wavelength at bit rates up to 5 Mbps.

Název v anglickém jazyce

Filter-less WDM for visible light communications using colored pulse amplitude modulation

Popis výsledku anglicky

This paper demonstrates, for the first time, a new wavelength-division multiplexing (WDM) scheme for visible light communications using multi-level coloured pulse amplitude modulation (M-CPAM). Unlike traditional WDM, no optical bandpass filters are required and only a single optical detector is used. We show that, by transmitting n independent sets of weighted on-off keying non-return-to-zero data on separate wavelengths over a line-of-sight transmission path, the resultant additive symbols can be successfully demodulated. Hence, the data rates can be aggregated for a single user or divided into individual colours for multiple user access schemes. The system is empirically tested for M = 4 and 8 using an off-the-shelf red, green and blue (RGB) chip light emitting diode (LED). We demonstrate that for M = 4, using the R and B chips a bit error rate (BER) of <=10-6 can be achieved for each wavelength at bit rates up to 10 Mbps, limited by the LEDs under test. For M = 8 using R, G and B a BER of <=10-6 can be achieved for each wavelength at bit rates up to 5 Mbps.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20202 - Communication engineering and systems

Projekt

<a href="/cs/project/GA17-17538S" target="_blank" >GA17-17538S: Kombinace radiofrekvenčního pásma a viditelného spektra pro přímou komunikaci mezi zařízeními</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optics Letters

ISSN

0146-9592

e-ISSN

1539-4794

Svazek periodika

44

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

4849-4852

Kód UT WoS článku

000488503500057

EID výsledku v databázi Scopus

2-s2.0-85072759916