Surface Waves Analysis of Efficient Underwater Radio-Based Wireless Link

Muhammad Rauf,Atif Jamil,Muhammad Dawood Idrees,Arsalan Ansari,Abdul Sami,Dao B Wang

doi:10.1155/2021/4186036

Muhammad Rauf, Atif Jamil + Show 4 more

Open Access

https://doi.org/10.1155/2021/4186036

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Abstract

The domain of underwater wireless communication (UWC) link is gaining much attention due to an increase in various underwater activities such as offshore hydrocarbon exploration, underwater unmanned vehicles (UUV), and military practices. Increased bandwidth and a reliable data link are mainly required for such activities. Both requirements of the domain are heavily affected by the highly conductive property of the seawater. This paper demonstrates the performance evaluation of radiofrequency-UWC, focusing on surface wave analysis, to propose a reliable solution for offshore activities. A constructive interference scheme can be useful due to the sharp difference in the properties of the two mediums (air and seawater). To that end, an experimental setup is created, and a corresponding finite element method (FEM) based simulation of the radio-based wireless link is run. This is because it has higher bandwidth and speed than acoustic and optical approaches. A conduction current mechanism transmits and receives data in a synthetic water tank containing a prepared conductive media (saltwater). The study of changing depths of transmitter-receiver nodes in saltwater shows that surface waves cause significant noise reception in shallow water (less than dipole length, below water level). During a series of experiments in the tank, the lowest bit error rate (BER) is observed only when the node’s submerged height was greater than dipole length. As a result, it is meant to provide a genuine data channel model. The discovery and analysis will aid in the development of a dependable underwater data link, with applications including short-range diver-to-diver communication, and UUV capability.

Highlights

Due to the growing demand for underwater marine applications, developing an underwater wireless communication connection has become a fast-growing yet challenging research subject in recent years
Due to the notable variation in the design schemes, both indicators are usually neglected. Another crucial aspect of the underwater wireless communication link between two nodes is the modulation of signals based on transmitted frequency
We proposed a solution of surface waves evaluation for establishing a reliable communication link

Summary

Introduction

Due to the growing demand for underwater marine applications, developing an underwater wireless communication connection has become a fast-growing yet challenging research subject in recent years. The challenges are the range of the link, reliable data transfer rate, and bandwidth capacity To address these issues, two alternate approaches are usually utilized: (1) receiving RF signals at air while propagating at the seawater-air interface and refract to the air path, followed by air to water signal propagation, due to a submerged transmitting source, and (2) utilizing the phenomenon of the guided wave at the air-seawater interface to build the wireless link. Utilizing the phenomenon of surface waves for achieving an effective link, an encapsulated underwater communication system is proposed With this scheme, medium-to-high frequency is reported [9]. Due to the notable variation in the design schemes, both indicators are usually neglected Another crucial aspect of the underwater wireless communication link between two nodes is the modulation of signals based on transmitted frequency.

Problem Statement and Proposed Solution

EM Modeling for Conductive Medium

Experimental Results