Analyzing of UVLC system considering the effect of water depth

In the present era of technology, it is quite fascinating to design a system capable of transmitting information from one end to another by using the optical spectrum. This system differs from optical fibre communication in terms of channel medium. Optical fibre technology uses the end-to-end physical connection via fibre. In contrast, Light-based wireless communication networks, also known as wireless optical communication (WOC) networks or fibreless optical communication networks, use light as a carrier and air as an unguided propagation media for transmission. Fibreless optical communication eliminates the need for Licensing and Buried Fibre Cables; also, its installation is relatively easy. This survey article describes the evolution of WOC technologies right from the old methods of communication to today’s deep-space optical satellite communication. This article briefly describes the WOC system working principle, categorization of wireless optical systems (based on the carrier frequency wavelength, distance covered, and application), different modulation techniques adopted for wireless optical communication, challenges associated with channel medium and channel modelling, performance analysis of WOC system, various application areas of WOC network, commercial developments in the field of WOC, and some other emerging trends associated with WOC.

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Comparison of solar cell and photodiode performance for underwater visible light communications system with RF transmission by various techniques

Qasim

Ali

2022

Journal of Optical Communications

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The purpose of this paper is to design an experimental system for underwater wireless optical communications (UWOC). By using an amplitude shift key (ASK), different frequencies in KHz are modulated over LED light. Four strategies are evaluated and compared (SISO, SIMO, MISO, and MIMO) with the purpose of determining the success of receiving optical signals. To receive these frequencies, a solar cell and photodiode (BPX61) are utilized. A digital storage oscilloscope (DSO) is used to view the received signal at the identical optical conditions. The results indicate that the system has a satisfactory link quality to receive frequencies when all four approaches are used in the same settings. The PD BPX61 is more efficient at receiving frequencies from the solar cell. The measurable frequency range of the received signals was 500 KHz for the PD BPX61 and 100 KHz for the solar cell. The (SISO) technique achieves the lowest SNR values, whereas the MIMO technique achieves the highest values.

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Analyzing of UVLC system considering the effect of water depth

Cited by 3 publications

References 19 publications

Transmission Of 10 Gb/s For Underwater Optical Wireless Communication System

Transmission Of 10 Gb/s For Underwater Optical Wireless Communication System

Review of fibreless optical communication technology: history, evolution, and emerging trends

Comparison of solar cell and photodiode performance for underwater visible light communications system with RF transmission by various techniques

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