access icon free 6.915-Gbit/s white-light phosphor laser diode-based DCO-OFDM visible light communication (VLC) system with functional transmission distance

In this Letter, a recorded single channel of 6.915-Gbit/s white-light visible light communication (VLC) system is reported and experimentally demonstrated. By optimising the bit-loading algorithm onto the direct-current optical OFDM signal and without using an optical blue filter, the high data rate can be achieved. After a free-space propagation distance of 1.5 m, the white-light beam diameter of 14 cm and illuminance of 795 lux are measured. The proposed white-light VLC system can provide both lighting and communication simultaneously with functional propagation distance.

Inspec keywords: OFDM modulation; free-space optical communication; optical communication equipment; semiconductor lasers; phosphors; optical modulation; light emitting diodes

Other keywords: white-light visible light communication system; white-light beam diameter; white-light phosphor laser diode-based DCO-OFDM visible light communication system; lighting; functional propagation distance; size 1.5 m; white-light VLC system; functional transmission distance; size 14.0 cm; direct-current optical OFDM signal

Subjects: Semiconductor lasers; Free-space optical links; Modulation and coding methods; Light emitting diodes; Optical communication equipment

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Correspondence
This article has following corresponding article(s):
light leap