Abstract
The main challenge in creating underwater Internet of Things (UIoT) applications is to select the appropriate type of communication system, which must take into account the unique conditions of the underwater environment and data transmission requirements. Unlike terrestrial systems, where RF channels are widely used, underwater conditions require other solutions, as radio waves are significantly attenuated in the water, severely limiting the transmission range. A specific and little-studied aspect of underwater communications is the use of Underwater Wireless Optical Communications (UWOC). This paper focuses on investigating the effect of the characteristics of the aquatic environment on UWOC performance. The purpose of the study was to identify the relationship between the parameters of the aquatic environment and the UWOC channel in the interest of predicting the effectiveness of its application as part of UIoT networks, to substantiate the feasibility and prospects of using underwater optical wireless communications as part of distributed information and measurement systems. The paper presents the results of research on the relationship between the parameters of the aquatic environment and the underwater optical wireless communication channel. The interrelation of optical characteristics of the aquatic environment with the indicators of efficiency and quality of underwater optical wireless communication: normalised power, communication range, bit error rate, in turn, affecting the accuracy and reliability of the information received by the Consumer at the output of the information-measuring system. The influence of water medium turbulence on the communication indicators is assessed. It is shown that changes in the salinity of the aquatic environment as one of the factors causing turbulence negatively affects the main indicators of underwater optical wireless communication. It is shown that the assessment of the feasibility of underwater optical wireless communication should be made on the basis of a detailed analysis of the parameters of the aquatic environment of the water area in which its implementation is planned. The obtained results confirm the possibility and perspectivity of using underwater optical wireless communication as a part of distributed information-measuring systems on underwater objects located in different types of water areas.
Published Version
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