1.2 Gbit/s visible light transmission based on orthogonal frequency-division multiplexing using a phosphorescent white light-emitting diode and a pre-equalization circuit

Xingxing Huang; Siyuan Chen; Zhixin Wang; Yiguang Wang; Nan Chi

doi:10.3788/COL201513.100602

Journals >Chinese Optics Letters >Volume 13 >Issue 10 >Page 100602 > Article

Chinese Optics Letters
Vol. 13, Issue 10, 100602 (2015)

1.2 Gbit/s visible light transmission based on orthogonal frequency-division multiplexing using a phosphorescent white light-emitting diode and a pre-equalization circuit

Xingxing Huang, Siyuan Chen, Zhixin Wang, Yiguang Wang, and Nan Chi^*

Author Affiliations

Key Laboratory for Information Science of Electromagnetic Waves (MoE), Fudan University, Shanghai 200433, China

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DOI: 10.3788/COL201513.100602 Cite this Article Set citation alerts

Xingxing Huang, Siyuan Chen, Zhixin Wang, Yiguang Wang, Nan Chi. 1.2 Gbit/s visible light transmission based on orthogonal frequency-division multiplexing using a phosphorescent white light-emitting diode and a pre-equalization circuit[J]. Chinese Optics Letters, 2015, 13(10): 100602 Copy Citation Text

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Abstract

We propose a two-cascaded, constant-resistance, symmetrical bridged-T amplitude equalizer for a high-speed visible light communication (VLC) system. With the pre-equalization circuit, the

3 dB

bandwidth of the VLC system can be extended from 12 to 235 MHz using a commercially available phosphorescent white light-emitting diode (LED), a blue filter, and a low-cost PIN photodiode. The data rate is 1.20 Gbit/s, exploiting 16-quadrature amplitude modulation-orthogonal frequency-division multiplexing with a 300 MHz modulation bandwidth over 50 cm of free-space transmission under the pre-forward error correction limit of