Application of channel multiplexing technology in LED underwater visible light communication

Q4 Physics and Astronomy

光学应用 Pub Date : 2023-01-01 DOI:10.5768/jao202344.0508002

PENG Jiachi, GUO Jianzhong, LI Yanlong, ZHANG Liang, ZHOU Ying, AI Yong, LIANG Hexi

引用次数: 0

Abstract

以发光二极管(LED)为发射端的水下可见光通信(UVLC)系统因器件带宽所限其传输速率较低，且受水质环境影响较大，致使通信综合性能不佳。为提高信道容量与通信质量，将信道复用技术应用在LED-UVLC系统中，以现场可编程门阵列(FPGA)为数据处理核心，搭建LED蓝绿光发射阵列以及雪崩光电二极管(APD)接收阵列，设计出了一个4×4的多信道UVLC系统。我们将系统置于长20 m的水下环境中，以26.7 Mbit/s的通信速率，完成了误码率(BER)约为10⁻⁷的双向传输。实验数据表明，当传输不同大小的数据文件时，对比传统的单输入单输出水下可见光通信(SISO-UVLC)系统，节省了约4倍的通信时间，且与仿真的信道容量增益一致。另外，在水质和通信距离相同的条件下，本系统能获得更优的BER性能。

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信道复用技术在LED水下可见光通信中的应用

以发光二极管(LED)为发射端的水下可见光通信(UVLC)系统因器件带宽所限其传输速率较低，且受水质环境影响较大，致使通信综合性能不佳。为提高信道容量与通信质量，将信道复用技术应用在LED-UVLC系统中，以现场可编程门阵列(FPGA)为数据处理核心，搭建LED蓝绿光发射阵列以及雪崩光电二极管(APD)接收阵列，设计出了一个4×4的多信道UVLC系统。我们将系统置于长20 m的水下环境中，以26.7 Mbit/s的通信速率，完成了误码率(BER)约为10−7的双向传输。实验数据表明，当传输不同大小的数据文件时，对比传统的单输入单输出水下可见光通信(SISO-UVLC)系统，节省了约4倍的通信时间，且与仿真的信道容量增益一致。另外，在水质和通信距离相同的条件下，本系统能获得更优的BER性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

光学应用 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

1.00

自引率

0.00%

发文量

5894

期刊介绍： Journal of Applied Optics was founded in 1980, and its domestic and international publication numbers are ISSN 1002-2082 and CN-61-1171/O4. The journal is a technical journal sponsored by the China Ordnance Society and the 205th Institute of China Ordnance Industry. It was included in the "China Science and Technology Core Journal" in April 2006 and in the "Chinese Core Journal" in December 2008. It is included in the journals of important international retrieval institutions such as the American Chemical Abstracts (CA), Cambridge Scientific Abstracts (CSA), Russian Abstracts Journal (AJ), British Scientific Abstracts (INSPEC), Ulrich's Periodical Directory (UIPD), and Polish Index Copernicus (IC). The purpose of the journal is to track the research trends of high-tech at home and abroad, and comprehensively reflect the development status, research level, and application of optoelectronic technology at home and abroad; focus on optoelectronic application technology, advocate scientific research, be close to readers, and be close to enterprises, and focus on reporting new theories, new technologies and new methods, new products, and development trends in the field of optoelectronic technology at home and abroad. This journal solicits research papers on engineering optics, optical information acquisition and processing, optical metrology and detection, low-light-level night vision technology, fiber optic sensing technology, infrared application technology, laser application technology, optoelectronic devices, thin film optics, optical processes and equipment, and displays.