Undersampled Pulse Width Modulation for Optical Camera Communications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F18%3A00322529" target="_blank" >RIV/68407700:21230/18:00322529 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/ICCW.2018.8403732" target="_blank" >http://dx.doi.org/10.1109/ICCW.2018.8403732</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICCW.2018.8403732" target="_blank" >10.1109/ICCW.2018.8403732</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Undersampled Pulse Width Modulation for Optical Camera Communications

Popis výsledku v původním jazyce

An undersampled pulse width modulation (UPWM) scheme is proposed to enable users to establish a non-flickering optical camera communications (OCC) link. With UPWM, only a digital light emitting diode (LED) driver is needed to send signals using a higher order modulation. Similar to other undersample-based modulation schemes for OCC, a dedicated preamble is required to assist the receiver to indicate the phase error introduced during the undersampling process, and to compensate for nonlinear distortion caused by the in-built gamma correction function of the camera. To test the performance of the UPWM-based OCC system, an experimental test-bed is developed. The experimental results show that the proposed system is able to achieve a data rate of 150 bps (spectrum efficiency of 5 bits/symbol) at a bit error rate of 6.76x10-4, which is well below the forward error correction limit of 3.8x10-3, over a link span of 1 m using a Huawei Nexus 6P smartphone with a frame rate of 30 fps.

Název v anglickém jazyce

Undersampled Pulse Width Modulation for Optical Camera Communications

Popis výsledku anglicky

An undersampled pulse width modulation (UPWM) scheme is proposed to enable users to establish a non-flickering optical camera communications (OCC) link. With UPWM, only a digital light emitting diode (LED) driver is needed to send signals using a higher order modulation. Similar to other undersample-based modulation schemes for OCC, a dedicated preamble is required to assist the receiver to indicate the phase error introduced during the undersampling process, and to compensate for nonlinear distortion caused by the in-built gamma correction function of the camera. To test the performance of the UPWM-based OCC system, an experimental test-bed is developed. The experimental results show that the proposed system is able to achieve a data rate of 150 bps (spectrum efficiency of 5 bits/symbol) at a bit error rate of 6.76x10-4, which is well below the forward error correction limit of 3.8x10-3, over a link span of 1 m using a Huawei Nexus 6P smartphone with a frame rate of 30 fps.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceeding of the 2018 IEEE International Conference on Communications Workshops

ISBN

978-1-5386-4328-0

ISSN

2474-9133

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

IEEE

Místo vydání

Piscataway, NJ

Místo konání akce

Kansas City

Datum konání akce

20. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000445022200245