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Geometric Implications of Photodiode Arrays on Received Power Distribution in Mobile Underwater Optical Wireless
Tharuka Govinda Waduge1, Boon-Chong Seet1, Kay Vopel2
1Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New Zealand.
Sensors (Basel, Switzerland)
|June 19, 2024
Summary
This study models underwater optical wireless communication (UOWC) link performance. It recommends dynamically shape-shifting receiver arrays for improved spatial coverage and link reliability in mobile UOWC systems.
Area of Science:
- Optical Engineering
- Oceanography
- Wireless Communication
Background:
- Underwater optical wireless communication (UOWC) is crucial for blue economy ventures.
- Mobile systems require robust communication links for offshore applications.
Purpose of the Study:
- To develop a model for received power distribution in mobile UOWC links.
- To analyze receiver photodiode array parameters' influence on link performance.
Main Methods:
- Devised a model for diffused line-of-sight mobile optical links.
- Conducted spatial analysis on photodiode array placement, orientation, and angular spread.
- Investigated performance across different Jerlov seawater types.
Main Results:
- Flat arrays are optimal for aligned links; curved arrays offer better spatial coverage but aren't always superior.
- Multiple wavelengths and advanced modulation enhance localization and link range.
- Receiver array geometry significantly impacts mobile UOWC performance.
Conclusions:
- Dynamically shape-shifting receiver array geometries are recommended for mobile UOWCs.
- Optimizing receiver design is key to enhancing UOWC link reliability and range.
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