Undersampled Pulse Width Modulation for Optical Camera Communications
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Undersampled Pulse Width Modulation for Optical Camera Communications
Original language description
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.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
—
Continuities
R - Projekt Ramcoveho programu EK
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceeding of the 2018 IEEE International Conference on Communications Workshops
ISBN
978-1-5386-4328-0
ISSN
2474-9133
e-ISSN
—
Number of pages
6
Pages from-to
1-6
Publisher name
IEEE
Place of publication
Piscataway, NJ
Event location
Kansas City
Event date
May 20, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000445022200245