Lasers, Fiber Optics, and Communications

Experimental demonstration of a full-duplex high-speed visible light communication access network architecture based on frequency division multiplexing

[+] Author Affiliations
Yiguang Wang

Fudan University, Department of Communication Science and Engineering, Key Laboratory for Information Science of Electromagnetic Waves (MoE), No. 220, Handan Road, Shanghai 200433, China

Yuanquan Wang, Li Tao, Jianyang Shi, Nan Chi

Fudan University, Department of Communication Science and Engineering, Key Laboratory for Information Science of Electromagnetic Waves (MoE), No. 220, Handan Road, Shanghai 200433, China

Opt. Eng. 53(11), 116104 (Nov 05, 2014). doi:10.1117/1.OE.53.11.116104
History: Received July 13, 2014; Revised September 25, 2014; Accepted September 26, 2014
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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 4Gb/s is successfully achieved to support four users access, and each user is offered 500Mb/s downstream and 500Mb/s upstream. The measured bit error rates of the downlink and uplink for all four users are <7% pre-forward error correction limit of 3.8×103 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 10Gb/s wireless access.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Yiguang Wang ; Yuanquan Wang ; Li Tao ; Jianyang Shi and Nan Chi
"Experimental demonstration of a full-duplex high-speed visible light communication access network architecture based on frequency division multiplexing", Opt. Eng. 53(11), 116104 (Nov 05, 2014). ; http://dx.doi.org/10.1117/1.OE.53.11.116104


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