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Repositorio de la Universidad de Oviedo > Producción Bibliográfica de UniOvi: RECOPILA > Artículos >

Use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10651/44514

Título : Reproducing single-carrier digital modulation schemes for VLC by controlling the first switching harmonic of the dc-dc power converter output voltage ripple
Autor(es) y otros: Rodríguez Méndez, Juan
Fernández Miaja, Pablo
González Lamar, Diego
Sebastián Zúñiga, Francisco Javier
Palabras clave: Two-phase buck converter
Quadrature Amplitude Modulation (QAM)
Carrier-less Amplitude and Phase modulation (CAP)
Amplitude-Shift Keying (ASK)
Fecha de publicación : 2018
Editorial : IEEE
Versión del editor: http://dx.doi.org/10.1109/TPEL.2017.2774178
Citación : IEEE Transactions on Power Electronics (2018); doi:10.1109/TPEL.2017.2774178
Resumen : A DC-DC power converter based on a two-phase synchronous buck converter that reproduces single-carrier digital modulation schemes by controlling the first switching harmonic of the output voltage ripple is presented in this work. The DC-DC power converter carries out both the lighting and the transmission functionalities of Visible Light Communication (VLC) transmitters. Control of both the amplitude and the phase of sinusoidal currents injected towards High-Brightness LEDs (HB-LEDs) enables the use of efficient modulation schemes such as Quadrature Amplitude Modulation (QAM), Carrier-less Amplitude and Phase modulation (CAP), Amplitude-Shift Keying (ASK) and Phase-Shift Keying (PSK). These modulation schemes achieve higher spectral efficiency (i.e. more data can be transmitted using the same bandwidth) than previously proposed modulation schemes performed by VLC transmitters based on the use of DC-DC power converters. To the author's knowledge, the ratio between the bit rate achieved and the switching frequency of the DC-DC power converter presented in this paper is the highest that can be found in literature
URI : http://hdl.handle.net/10651/44514
ISSN : 1941-0107
0885-8993
Aparece en las colecciones: Artículos
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas
Investigaciones y Documentos OpenAIRE

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