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Optical Engineering

Experimental demonstration of a full-duplex high-speed visible light communication access network architecture based on frequency division multiplexing
Author(s): Yiguang Wang; Yuanquan Wang; Li Tao; Jianyang Shi; Nan Chi
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Paper Abstract

We propose and experimentally demonstrate a full-duplex high-speed visible light communication (VLC) access network based on star topology architecture to offer high-speed optical wireless access for a large number of users. Optical fiber is used as the backbone of the VLC network and directly connected to the light-emitting diode lamps. Frequency division multiplexing (FDM) is utilized for both the downlink and uplink. The bidirectional transmission of 32 quadrature amplitude modulation orthogonal FDM signals at an overall throughput of 4  Gb/s is successfully achieved to support four users access, and each user is offered 500  Mb/s downstream and 500  Mb/s upstream. The measured bit error rates of the downlink and uplink for all four users are <7% pre-forward error correction limit of 3.8×10−3 after a 25 km standard single-mode fiber and 65 cm free space, which clearly validates the promising potential of the proposed VLC network architecture to offer more than 10  Gb/s wireless access.

Paper Details

Date Published: 5 November 2014
PDF: 6 pages
Opt. Eng. 53(11) 116104 doi: 10.1117/1.OE.53.11.116104
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Yiguang Wang, Fudan Univ. (China)
Yuanquan Wang, Fudan Univ. (China)
Li Tao, Fudan Univ. (China)
Jianyang Shi, Fudan Univ. (China)
Nan Chi, Fudan Univ. (China)

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