Investigation of no analogue-equalization and blue filter for 185 Mbps phosphor-LED wireless communication

C. H. Yeh; Chi-Wai Chow; Y. L. Liu; H. Y. Chen; Y. Liu; J. C. Hsu

doi:10.1007/s11082-014-0070-5

Investigation of no analogue-equalization and blue filter for 185 Mbps phosphor-LED wireless communication

C. H. Yeh^*, Chi-Wai Chow, Y. L. Liu, H. Y. Chen, Y. Liu, J. C. Hsu

^*Corresponding author for this work

Department of Photonics

Research output: Contribution to journal › Article

9 Scopus citations

Abstract

In this demonstration, we first propose an optimal analogue front end circuit without employing pre-equalization (series peaking) to increase the modulation bandwidth of phosphor-LED in visible light communication (VLC) transmission. And there is no blue filter and post-equalization in the client side. Here, only using optimal adjustment of resistance (R), inductance (L), and capacitance (C) in bias-tee to compensate the impedance matching of phosphor-LED, nearly 32 MHz modulation bandwidth can be accomplished. Therefore, utilizing orthogonal frequency division multiplexed modulation with bit-loading algorithm in VLC system, 185 Mbps data rate can be achieved under a transmission distance of 80 cm.

Original language	English
Pages (from-to)	1991-1997
Number of pages	7
Journal	Optical and Quantum Electronics
Volume	47
Issue number	7
DOIs	https://doi.org/10.1007/s11082-014-0070-5
State	Published - 1 Jul 2015

Keywords

OFDM-QAM
Phosphor-LED
Visible light communication (VLC)

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10.1007/s11082-014-0070-5

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Yeh, C. H., Chow, C-W., Liu, Y. L., Chen, H. Y., Liu, Y., & Hsu, J. C. (2015). Investigation of no analogue-equalization and blue filter for 185 Mbps phosphor-LED wireless communication. Optical and Quantum Electronics, 47(7), 1991-1997. https://doi.org/10.1007/s11082-014-0070-5

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abstract = "In this demonstration, we first propose an optimal analogue front end circuit without employing pre-equalization (series peaking) to increase the modulation bandwidth of phosphor-LED in visible light communication (VLC) transmission. And there is no blue filter and post-equalization in the client side. Here, only using optimal adjustment of resistance (R), inductance (L), and capacitance (C) in bias-tee to compensate the impedance matching of phosphor-LED, nearly 32 MHz modulation bandwidth can be accomplished. Therefore, utilizing orthogonal frequency division multiplexed modulation with bit-loading algorithm in VLC system, 185 Mbps data rate can be achieved under a transmission distance of 80 cm.",

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AU - Hsu, J. C.

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AB - In this demonstration, we first propose an optimal analogue front end circuit without employing pre-equalization (series peaking) to increase the modulation bandwidth of phosphor-LED in visible light communication (VLC) transmission. And there is no blue filter and post-equalization in the client side. Here, only using optimal adjustment of resistance (R), inductance (L), and capacitance (C) in bias-tee to compensate the impedance matching of phosphor-LED, nearly 32 MHz modulation bandwidth can be accomplished. Therefore, utilizing orthogonal frequency division multiplexed modulation with bit-loading algorithm in VLC system, 185 Mbps data rate can be achieved under a transmission distance of 80 cm.

KW - OFDM-QAM

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