• Computer Science > Networking and Internet Architecture [Submitted on 20 Feb 2026] Title:Noise Mitigation Methods for Digital Visible Light Communication View PDFAbstract:Visible Light Communication (VLC) using Light Emitting Diodes (LEDs) has gained attention due to its low power consumption, long lifetime, and fast response. • However, VLC suffers from optical noise generated by ambient light sources such as fluorescent lamps, which leads to waveform distortion and increased bit error rates (BER). • In this paper, we propose two noise reduction methods for Digital Visible Light Communication (DVLC) systems. • The first method exploits the periodic nature of interference caused by AC-powered-line illumination and reduces interference by subtracting sampled noise waveforms from the received signal. • Second, inspired by Active Noise Control (ANC) techniques, an additional photodiode is introduced for noise reception, and subtraction circuits are employed to attenuate noise in real time. • Experimental results show that both methods improve BER performance compared with conventional receivers, with the ANC-inspired approach achieving superior performance under all tested conditions.
Article Summaries:
- Researchers have introduced two practical techniques to reduce optical noise in digital visible light communication (VLC) systems that use LEDs. The first method exploits the periodicity of AC‑powered fluorescent lighting, subtracting sampled noise waveforms from the received signal to cancel interference. The second, inspired by active noise control, adds a dedicated photodiode to capture ambient light and employs real‑time subtraction circuitry to attenuate noise. Experiments show both approaches lower bit‑error rates compared with conventional receivers, with the active‑control method consistently delivering the best performance across all tested conditions.
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