3.375-Gb/s RGB-LED based WDM visible light communication system employing PAM-8 modulation with phase shifted Manchester coding.

Optical background noise and second-order nonlinear distortions are two main challenges faced by indoor high-speed VLC system. In this paper, a novel phase shifted Manchester (PS-Manchester) coding based on PAM-8 is proposed and experimentally demonstrated to mitigate these noise and distortions. With the aid of PS-Manchester coding and WDM, a total data rate of 3.375-Gb/s can be successfully achieved in the RGB-LED based VLC system. The BER is under 7% HD-FEC limit of 3.8x10-3 after 1-m indoor free space transmission. To the best of our knowledge, this is the highest data rate ever achieved in PAM VLC systems.

[1]  G. Stepniak,et al.  Experimental Comparison of PAM, CAP, and DMT Modulations in Phosphorescent White LED Transmission Link , 2015, IEEE Photonics Journal.

[2]  Shoji Kawahito,et al.  LED and CMOS Image Sensor Based Optical Wireless Communication System for Automotive Applications , 2013, IEEE Photonics Journal.

[3]  Woo-Young Choi,et al.  10-Gb/s 850-nm CMOS OEIC Receiver With a Silicon Avalanche Photodetector , 2012, IEEE Journal of Quantum Electronics.

[4]  Jianjun Yu,et al.  Demonstration of 575-Mb/s downlink and 225-Mb/s uplink bi-directional SCM-WDM visible light communication using RGB LED and phosphor-based LED. , 2013, Optics express.

[5]  Li Tao,et al.  4.5-Gb/s RGB-LED based WDM visible light communication system employing CAP modulation and RLS based adaptive equalization. , 2015, Optics express.

[6]  Grahame Faulkner,et al.  Indoor visible light communications: challenges and prospects , 2008, Optical Engineering + Applications.

[7]  Nan Chi,et al.  High-speed quasi-balanced detection OFDM in visible light communication. , 2013, Optics express.

[8]  J. Siuzdak,et al.  Compensation of a VLC Phosphorescent White LED Nonlinearity by Means of Volterra DFE , 2013, IEEE Photonics Technology Letters.

[9]  Tao Gui,et al.  Experimental study of PAM-4, CAP-16, and DMT for 100 Gb/s short reach optical transmission systems. , 2015, Optics express.

[10]  Laurent Schmalen,et al.  Estimation of Soft FEC Performance in Optical Transmission Experiments , 2011, IEEE Photonics Technology Letters.

[11]  Jerzy Siuzdak,et al.  1.1 GBIT/S white lighting LED‐based visible light link with pulse amplitude modulation and Volterra DFE equalization , 2015 .

[12]  Y. Liu,et al.  Mitigation of Optical Background Noise in Light-Emitting Diode (LED) Optical Wireless Communication Systems , 2013, IEEE Photonics Journal.