Skip to Main content Skip to Navigation
Journal articles

Photovoltaic Solar Cells for Outdoor LiFi Communications

Abstract : Increasing demand of wireless devices contributes to radiofrequency (RF) congestion. Light Fidelity (LiFi) promises to be an interesting alternative by using the visible part of the electromagnetic spectrum instead of the RF part as nearly all existing wireless transmission systems do. A basic LiFi system is composed of one intensity-controlled light-emitting diode (LED) and one receiver device sensitive to very high-frequency (thus invisible to human sight) modulations of the luminous intensity. In most cases, the photoreceptor is a silicon photodiode of PIN (P-type intrinsic N-type) or APD (Avalanche photodiode) conception. Recently, a few studies suggest that photovoltaic (PV) modules could be used to implement outdoor LiFi transmissions, i.e., under direct sunlight exposure. In this paper, we propose to compare the behavior of a PV module and a commercial APD-based photodetector (without any optical lens or colored filter) for experimental LiFi transmissions on both indoor and outdoor conditions. The performance of the two solutions is quantified in terms of various frequency responses like attenuation, signal-to-noise ratio, or bit-error rate. The results show that, while the photodiode exhibits very good performance in indoor conditions, its frequency response is rapidly deteriorating when a sunlight exposure of more than 200W/m 2 is superimposed over the LiFi signal. We demonstrate that a PV module in Voc (open-circuit voltage) condition still operates a LiFi transmission under additional solar illumination.
Document type :
Journal articles
Complete list of metadata

Cited literature [35 references]  Display  Hide  Download
Contributor : Jj Simon Connect in order to contact the contributor
Submitted on : Friday, July 17, 2020 - 10:26:17 AM
Last modification on : Wednesday, March 9, 2022 - 11:40:38 AM
Long-term archiving on: : Monday, November 30, 2020 - 11:53:55 PM


JLT Nominoe Lorriere soumissio...
Files produced by the author(s)




N. Lorriere, N. Betrancourt, M. Pasquinelli, G. Chabriel, J. Barrere, et al.. Photovoltaic Solar Cells for Outdoor LiFi Communications. Journal of Lightwave Technology, Institute of Electrical and Electronics Engineers (IEEE)/Optical Society of America(OSA), 2020, pp.1-1. ⟨10.1109/JLT.2020.2981554⟩. ⟨hal-02901381⟩



Record views


Files downloads