Research on Underwater Mobile Optical Communication Technology based on Gain Feedback Control

LIU Jie-hui; MA Lin; ZHU Sen-rong; HE Zu-yuan

doi:10.13756/j.gtxyj.2023.04.011

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Research on Underwater Mobile Optical Communication Technology based on Gain Feedback Control

更新时间：2023-08-14

- Research on Underwater Mobile Optical Communication Technology based on Gain Feedback Control
- Study on Optical Communications Issue 4, Pages: 68-72(2023)
- 作者机构：
  
  1.上海交通大学　区域光纤通信网与新型光通信系统国家重点实验室，上海　200240
  2.重庆前卫科技集团有限公司，重庆　401121
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2023.04.011
  CLC： TN929
- Published：10 August 2023，
  
  Received：27 April 2023，
  
  Revised：06 May 2023，
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刘杰徽，马麟，朱森荣，等.基于增益反馈控制的水下移动光通信技术研究[J].光通信研究，2023(4):68-72.

Liu J H, Ma L, Zhu S R, et al. Research on Underwater Mobile Optical Communication Technology based on Gain Feedback Control [J].Study on Optical Communications, 2023(4):68-72.
刘杰徽，马麟，朱森荣，等.基于增益反馈控制的水下移动光通信技术研究[J].光通信研究，2023(4):68-72. DOI： 10.13756/j.gtxyj.2023.04.011.

Liu J H, Ma L, Zhu S R, et al. Research on Underwater Mobile Optical Communication Technology based on Gain Feedback Control [J].Study on Optical Communications, 2023(4):68-72. DOI： 10.13756/j.gtxyj.2023.04.011.

摘要

在水下移动可见光通信系统中，当传输距离改变时，因水具有较大固有吸收，接收光功率会发生显著变化。文章提出了一种基于增益反馈控制（GFC）的水下移动可见光通信技术，拓展了通信距离和视场角（FOV）的动态范围。在移动速度为0.13 m/s条件下，实现了通信距离0.9~5.2 m任意可调速率5.0 Mbit/s、像素为800×600且帧率（FPS）不为零的实时双工视频传输。与没有使用GFC方法的系统相比，其通信距离和FOV的动态范围分别增长了5.3和2.8倍。为了进一步验证该系统的性能，文章还测试了不同移动速度下系统的平均闪烁指数、数据传输中断概率及误码率（BER）。在通信距离的动态范围内，随着移动速度增大，平均闪烁指数及BER相应增大，但即使移动速度达到系统可实现的最大速度0.83 m/s时，通信仍未中断，说明该系统具有良好的鲁棒性，在水下移动可见光通信领域具有良好的应用前景。

Abstract

In underwater mobile visible light communication systems

the received optical power varies significantly when the transmission distance changes due to the large intrinsic absorption of water. This paper proposes an underwater mobile visible light communication technology based on Gain Feedback Control (GFC)

which expands the dynamic range of both communication distance and Field of View (FOV). At a moving speed of 0.13 m/s

we achieved real-time duplex video transmission with adjustable communication distances between 0.9~5.2 m

data rates of 5.0 Mbit/s

video pixels of 800×600

and Frames Per Second (FPS) greater than zero. Compared with the system without GFC

the dynamic range of communication distance and receiving FOV angle has expanded to 5.3 and 2.8 times

respectively. In order to further verify the performance of the system

we measured the average scintillation index

data transmission outage probability

and Bit Error Rate (BER) of the system at different moving speeds. Within the dynamic range of communication distance

as the moving speed increases

the average scintillation index and BER correspondingly increase. However

even when the moving speed reaches 0.83 m/s

which is the maximum speed of the system

communication remains uninterrupted. Our results indicate that the system has good robustness and has good potential underwater mobile communication applications.

关键词

可见光通信移动通信视频通信动态范围

Keywords

visible light communicationmobile communicationvideo communicationdynamic range

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Related Institution

School of Information Engineering, Inner Mongolia University of Science and Technology

Pilot National Laboratory for Marine Science and Technology

College of Ocean Science and Engineering, Shandong University of Science and Technology

Research Institute of Photonics,Dalian Polytechnic University

School of Information Science and Technology, North China University of Technology

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