Self-Clocking Constant-Power Multi-Level Scheme for Optical Camera Communication

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00376550" target="_blank" >RIV/68407700:21230/24:00376550 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/CSNDSP60683.2024.10636635" target="_blank" >https://doi.org/10.1109/CSNDSP60683.2024.10636635</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CSNDSP60683.2024.10636635" target="_blank" >10.1109/CSNDSP60683.2024.10636635</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Self-Clocking Constant-Power Multi-Level Scheme for Optical Camera Communication

Popis výsledku v původním jazyce

Self-clocking line codes are commonly used in Optical Camera Communication (OCC) links to ensure accurate synchronization of data transmission without the need for an explicit clock signal. In OCC links where the light is used both for illumination and communication, some of these codes (e.g., Manchester) can also help minimize the perceptibility of flickering by ensuring rapid transitions and a consistent signal pattern. When considering multi-level line codes, the same self-clocking and constant power characteristics are desirable, which has led to the recent proposal of a Constant-Power Pulse Amplitude Modulation (CP-PAM) scheme for OCC. However, much like in Manchester coding, there is a significant trade-off associated with its use - the overall spectral efficiency is cut in half. This paper presents an alternative multi-level coding scheme that offers the same self-clocking and similar constant power properties, with a significantly improved spectral efficiency compared to CP-PAM (from 0.75 to 1 bps/Hz). Experimental results showcase its merits when used in a multi-level sub-pixel OCC link.

Název v anglickém jazyce

Self-Clocking Constant-Power Multi-Level Scheme for Optical Camera Communication

Popis výsledku anglicky

Self-clocking line codes are commonly used in Optical Camera Communication (OCC) links to ensure accurate synchronization of data transmission without the need for an explicit clock signal. In OCC links where the light is used both for illumination and communication, some of these codes (e.g., Manchester) can also help minimize the perceptibility of flickering by ensuring rapid transitions and a consistent signal pattern. When considering multi-level line codes, the same self-clocking and constant power characteristics are desirable, which has led to the recent proposal of a Constant-Power Pulse Amplitude Modulation (CP-PAM) scheme for OCC. However, much like in Manchester coding, there is a significant trade-off associated with its use - the overall spectral efficiency is cut in half. This paper presents an alternative multi-level coding scheme that offers the same self-clocking and similar constant power properties, with a significantly improved spectral efficiency compared to CP-PAM (from 0.75 to 1 bps/Hz). Experimental results showcase its merits when used in a multi-level sub-pixel OCC link.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 14th International Symposium on Communication Systems, Networks and Digital Signal Processing

ISBN

979-8-3503-4874-3

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

222-227

Název nakladatele

IEEE

Místo vydání

—

Místo konání akce

Rome

Datum konání akce

17. 7. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001324588800042