Details

Autor(en) / Beteiligte

• Gutema, Tilahun Zerihun
• Haas, Harald
• Popoola, Wasiu O.

Titel

WDM Based 10.8 Gbps Visible Light Communication With Probabilistic Shaping

Ist Teil von

• Journal of lightwave technology, 2022-08, Vol.40 (15), p.5062-5069

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2022

Link zum Volltext

• Volltext

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• In this work, we study probabilistic shaping (PS) for optical wireless communications and apply the technique to wavelength division multiplexing (WDM) based visible light communication (VLC). The performance of the proposed scheme is validated with an experimental demonstration. The experimental set up uses lenses to collimate the light beam for triple LEDs. The system parameters of the WDM based VLC system are then optimised, the channel response measured, and PS based symbols are allocated to the individual orthogonal frequency division multiplexing (OFDM) subcarriers. For the channel conditions under consideration, PS resulted in a near Shannon capacity transmission rate of 10.81 Gb/s. Comparatively, the PS resulted in 25% higher transmission rate than the widely used adaptive bit-power loading algorithm under the same channel conditions.