A study on underwater optical wireless communication link capability in the Bay of Bengal

IF 0.7 Q4 ENGINEERING, OCEAN

Ocean Systems Engineering-An International Journal Pub Date : 2018-03-01 DOI:10.12989/OSE.2018.8.1.033

V. Sathyaram, S. Prince, N. Vedachalam

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引用次数: 1

Abstract

The paper presents a numerical underwater channel model developed in MATLAB for estimating the optical link budget between a light emitting diode (LED) based optical transmitter and a photo diode (PD) receiver when operated in the harbor, coastal and deep waters locations in the Bay of Bengal. The water samples are collected at different locations in the Bay of Bengal using a water sampler during an offshore research cruise. The optical attenuation, the main inherent parameter determining the range of the optical communication link is identified for the different waters using an underwater irradiance measurement system in the laboratory. The identified parameters are applied to the numerical model and found that a 10 W LED and a photo diode based system can provide the optical budget required for a horizontal underwater communication range of about 0.5, 14 and 35 m in the harbor, coastal and deep waters locations respectively. By increasing the transmitter power to 50 W, the operating range of the communication link could be increased up to 53 m in deep water locations in the Bay of Bengal.

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孟加拉湾水下光无线通信链路性能研究

本文提出了一个在MATLAB中开发的水下通道数值模型，用于估计在孟加拉湾港口、沿海和深水位置运行时基于发光二极管（LED）的光发射器和光电二极管（PD）接收器之间的光链路预算。在海上研究巡航期间，使用采样器在孟加拉湾的不同地点采集了水样。在实验室中使用水下辐照度测量系统识别不同水域的光衰减，这是确定光通信链路范围的主要固有参数。将识别的参数应用于数值模型，发现10W LED和基于光电二极管的系统可以分别在港口、沿海和深水位置提供约0.5米、14米和35米的水平水下通信范围所需的光学预算。通过将发射机功率增加到50 W，在孟加拉湾的深水位置，通信链路的工作范围可以增加到53 m。

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

Ocean Systems Engineering-An International Journal ENGINEERING, OCEAN-

自引率

22.20%

发文量

期刊介绍： The OCEAN SYSTEMS ENGINEERING focuses on the new research and development efforts to advance the understanding of sciences and technologies in ocean systems engineering. The main subject of the journal is the multi-disciplinary engineering of ocean systems. Areas covered by the journal include; * Undersea technologies: AUVs, submersible robot, manned/unmanned submersibles, remotely operated underwater vehicle, sensors, instrumentation, measurement, and ocean observing systems; * Ocean systems technologies: ocean structures and structural systems, design and production, ocean process and plant, fatigue, fracture, reliability and risk analysis, dynamics of ocean structure system, probabilistic dynamics analysis, fluid-structure interaction, ship motion and mooring system, and port engineering; * Ocean hydrodynamics and ocean renewable energy, wave mechanics, buoyancy and stability, sloshing, slamming, and seakeeping; * Multi-physics based engineering analysis, design and testing: underwater explosions and their effects on ocean vehicle systems, equipments, and surface ships, survivability and vulnerability, shock, impact and vibration; * Modeling and simulations; * Underwater acoustics technologies.