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Nonlinear adaptive filters for high-speed LED based underwater visible light communication

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摘要

Underwater visible light communication (UVLC) is expected to act as an alternative candidate in next-generation underwater 5G wireless optical communications. To realize high-speed UVLC, the challenge is that the absorption, scattering, turbulence of water medium and the nonlinear response from imperfect optoelectronic devices, which can bring large attenuation and nonlinearity penalty. Nonlinear adaptive filters are commonly used in optical communication to compensate for nonlinearity. In this paper, we compare RLS based Volterra filter, LMS based DP filter and LMS based Volterra filter in terms of performance and computational complexity in underwater visible light communication. We experimentally demonstrate 2.325 Gb/s transmission at a distance of 1.2 m water with a commercial blue LED. Our goal is to assist the readers in refining the motivation, structure, performance and cost of powerful nonlinear adaptive filters in the context of future underwater visible light communication in order to tap into hitherto unexplored applications and services.

Newport宣传-MKS新实验室计划
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作者单位:

    复旦大学计算中心A406

引用该论文

Chi Nan,Hu Fangchen. Nonlinear adaptive filters for high-speed LED based underwater visible light communication[J].Chinese Optics Letters,2019,17(10):10.