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1. trepo.tuni.fi › bitstream › handleModulation Schemes for Visible Light Communications

   trepo.tuni.fi › bitstream › handle

   Among other challenges associated with VLC systems, effective flicker mitigation of the spectrum is one of the major aims. Flicker refers to the fluctuation of the brightness level of light and can result from modulating the light source. Therefore, flicker must be effectively mitigated because it can cause noticeable, unwanted changes to humans.

2. onlinelibrary.wiley.com › doi › epdfVisible Light Communications - Wiley Online Library

   onlinelibrary.wiley.com › doi › epdf

   Visible Light Communications: Modulation and Signal Processing endeavours to provide topics from VLC models to extensive coverage of the latest modulation and signal processing techniques for VLC systems.

3. link.springer.com › referenceworkentry › 10Visible Light Communication (VLC) Basics | SpringerLink

   link.springer.com › referenceworkentry › 10

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   Apr 13, 2024 · Visible light communication (VLC) has emerged as a transformative technology that leverages light as a carrier for wireless data transmission. This chapter delves into the fundamentals of VLC, beginning with an insightful exploration of its background and...

4. www.sciencedirect.com › science › articleIlluminating the future: A comprehensive review of visible ...

   www.sciencedirect.com › science › article

   Oct 1, 2024 · ITU-T G.9991 sets out the technical specifications required to establish effective and dependable indoor communication systems that use visible light as the medium. This field represents a captivating realm of research and development that integrates both illumination and data communication.

5. www.sciencedirect.com › science › articleVisible light communication: Applications, architecture ...

   www.sciencedirect.com › science › article

   May 1, 2017 · Visible Light Communication (VLC) systems employ visible light for communication that occupy the spectrum from 380 nm to 750 nm corresponding to a frequency spectrum of 430 THz to 790 THz as shown in Fig. 2.

   • Author: Latif Ullah Khan

   • Publish Year: 2017

6. www.bu.edu › smartlighting › filesLED-to-LED Visible Light Communication - Boston University

   www.bu.edu › smartlighting › files

   An LED-to-LED Visible Light Communication System with Software-Based Synchronization. Stefan Schmid1,2, Giorgio Corbellini2, Stefan Mangold2, Thomas R. Gross1. 1ETH Zurich, 2Disney Research Zurich.

7. People also ask

   What is flickering in VLC?

   • 1. Flickering is the fluctuations noticed by humans in the brightness of a light. In VLC, the modulation of the LEDs should be done in a way to avoid flickering because of its harmful effects on human health . Flickering is either inter-frame flicker or intra-frame flicker depending on the nature of the brightness of the variations.

   Visible light communication: Applications, architecture

   www.sciencedirect.com/science/article/pii/S2352864816300335

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   What are the different implementations of visible light communication systems?

   • In , , , different implementations of the visible light communication systems are given. In , a full-duplex bi-directional VLC system utilizing RGB LEDs and a commercially available phosphor-based LED in downlink and uplink, are proposed respectively.

   Visible light communication: Applications, architecture

   www.sciencedirect.com/science/article/pii/S2352864816300335

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   What is visible light communication?

   • Keywords— visible light communication, modulations schemes, flickering, dimming, Asymmetric Optical Modulation, GSSK. I. INTRODUCTION Visible light communication can assist considerably conventional radio frequency communications and ensure an overall better wireless network performance, wherever short-range links are used.

   Modulation Schemes for Visible Light Communications

   trepo.tuni.fi/bitstream/handle/10024/130177/Modulation_Schemes_for_Visible_2019.pdf?sequence=1

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   How can a visible light communication system be used in outdoor VLC characterization?

   • The authors in have implemented an outdoor Visible light Communication system that transmits data using OOK and CSK modulation techniques with a receiver that integrates with both, an edge filter and an angular diversity detector. They have implemented this model to perform analysis on outdoor VLC Characterization.

   Illuminating the future: A comprehensive review of visible light commun…

   www.sciencedirect.com/science/article/pii/S0030399224006406

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   What is inter-frame flickering?

   • Flickering is either inter-frame flicker or intra-frame flicker depending on the nature of the brightness of the variations. The intra-frame flickering is because of the brightness difference between bits in a frame while the inter-frame flickering is due to the brightness difference between the idle period and packet frame transmission period.

   Visible light communication: Applications, architecture

   www.sciencedirect.com/science/article/pii/S2352864816300335

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   What is a flicker-free LED driver?

   • This driver is designed to eliminate flickering in LED lighting systems, which can be a concern for some applications. In VLC, flicker can introduce interference and affect data communication quality. Therefore, such flicker-free LED drivers are essential for maintaining a stable and high-quality VLC signal.

   Visible Light Communication (VLC) Basics | SpringerLink

   link.springer.com/referenceworkentry/10.1007/978-981-33-4999-5_63-1

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8. ijisrt.com › upload › submitted_filesAn Insight into the Modulation schemes for Visible light ...

   ijisrt.com › upload › submitted_files

   The variation of light intensity is considered as flickering, any possible fluctuation effecting from the modulated light source for communication, it should be minimized because fluctuation of light intensity can cause visible, negative impact on physiological changes in human beings.