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Study on the backscattering disturbance in duplex underwater wireless optical communication systems.
Applied Optics
|November 22, 2018
Summary
Backscattering significantly impacts duplex underwater wireless optical communication (UWOC) systems. Optimizing transmitter-receiver separation and receiver field angle can mitigate these effects for better system performance.
Area of Science:
- Optics
- Optical Communications
- Underwater Systems
Background:
- Backscattering is a critical performance-limiting factor in duplex underwater wireless optical communication (UWOC) systems.
- Understanding the impact of backscattering is essential for designing robust UWOC systems.
Purpose of the Study:
- To investigate the effects of backscattering on duplex UWOC system performance.
- To identify key parameters influencing backscattering and propose mitigation strategies.
Main Methods:
- The study employed the Monte Carlo method to simulate and analyze backscattering phenomena.
- System performance was evaluated based on communication signal strength and optical signal-to-noise ratio (OSNR).
Main Results:
- Increased transmitter divergence angle reduces signal and OSNR.
- Larger receiver field angles increase backscattering and decrease OSNR.
- Greater transmitter-receiver separation reduces backscattering and improves OSNR.
- Increased communication distance has minimal effect on backscattering but drastically reduces signal and OSNR.
Conclusions:
- To minimize backscattering disturbance, increase the separation between transmitter and receiver and use a smaller receiver field angle.
- High transmitting power or receiving sensitivity makes backscattering difficult to suppress, necessitating half-duplex mode.
- Findings provide valuable insights for designing effective duplex UWOC systems.
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