Full Field Radiant Flux Distribution of Multiple Tilted Flat Lambertian Light Sources - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue IEEE Open Journal of the Communications Society Année : 2020

Full Field Radiant Flux Distribution of Multiple Tilted Flat Lambertian Light Sources

Résumé

The emergence of visible light communication (VLC) as a subset of optical wireless communication (OWC) in the early 2000s has turned any light-emitting diode (LED) source into a potential data transmitter. The design process for any VLC or OWC system typically involves a link budget analysis performed by studying the signal-to-noise ratio (SNR) at the receiver. Since this SNR strongly depends on the radiant flux collected by the receiver, an accurate model for this parameter is required. The point-source model has been widely used since 1979 and generally provides a good approximation of the received radiant flux. However, it might be less accurate for typical extended lighting sources like LED panels or large-area organic LEDs. In this paper, the radiant flux distribution of flat Lambertian rectangular or circular sources is derived from a vector analysis of their irradiance. It is then validated through actual measurements in the case of a circular source. The resulting extended-source models thus better capture the light beam pattern of such transmitters to enable a more accurate link budget. It provides at the same time almost identical results to the point-source model for small sources and can, therefore, be seen as a natural extension of this already widely used model. INDEX TERMS LED pattern, irradiance pattern, light power pattern, non-imaging optics, link budget, optical wireless communication, visible light communication.
Fichier principal
Vignette du fichier
2020 - IEEE_OJCOMS_Camilo_IEEE.pdf (3.08 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02953820 , version 1 (30-09-2020)

Identifiants

Citer

Juan Camilo Valencia-Estrada, Bastien Béchadergue, Jorge García-Márquez. Full Field Radiant Flux Distribution of Multiple Tilted Flat Lambertian Light Sources. IEEE Open Journal of the Communications Society, 2020, 1, pp.927-942. ⟨10.1109/OJCOMS.2020.3008989⟩. ⟨hal-02953820⟩
36 Consultations
66 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More