A Novel Method of Integrating Visible Light Communications within LED Drivers
Bibliographic record
Abstract
Although visible light communication (VLC) systems hold great promise for ubiquitous connectivity, the efficient implementation of drivers which support illumination and communication functions is an open problem. In this paper, we present a novel approach to integrate VLC within light-emitting diode (LED) drivers by replacing the freewheeling diode with a light-emitting device termed a light- emitting freewheeling diode (LEFD). In this way, energy typically dissipated in the power converter can be used to provide illumination. Subtle changes to the control signal of the converter can be used to convey data from the LEFD while simultaneously supporting illumination functions. We consider a variety of modulation formats and provide simulation results quantifying performance. A prototype buck converter with LEFD is implemented and efficiency and efficacy are measured. It is demonstrated that the addition of an LEFD can improve the overall optical efficiency (i.e., efficacy) over conventional LED converter designs.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".