Performance evaluation of the vertical UWOC system under jamming over the unified multi-layer turbulence channel
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View abstract on PubMed
Summary
This summary is machine-generated.This study analyzes jamming effects on vertical underwater wireless optical communication (UWOC) using a novel multi-layer turbulence model. Spatial diversity (MISO) significantly mitigates jamming, improving system performance and guiding future UWOC designs.
Area Of Science
- Optical Communications
- Wireless Communication Systems
- Underwater Technology
Background
- Underwater wireless optical communication (UWOC) faces challenges from turbulence, absorption, scattering, and pointing errors.
- Jamming poses a significant threat to the reliability and security of UWOC links.
- Existing models may not fully capture the complex fading characteristics of underwater optical turbulence (UOT).
Purpose Of The Study
- To investigate the impact of jamming on vertical UWOC links over composite cascaded fading channels.
- To develop a unified multi-layer model for UOT-induced fading.
- To derive analytical expressions for channel statistics and system performance under jamming.
Main Methods
- Developed a unified multi-layer model for UOT, integrating single-lobe and two-lobe characteristics.
- Derived closed-form expressions for PDF, CDF, and signal-to-jamming ratio (SJR).
- Analyzed average bit error rate (ABER) for single-aperture and multiple-input single-output (MISO) UWOC systems using spatial diversity.
Main Results
- Derived exact closed-form expressions for channel fading and SJR.
- Obtained closed-form ABER expressions for MISO UWOC systems employing selection combining and equal-gain combining.
- Validated theoretical results through Monte Carlo simulations, demonstrating the effectiveness of spatial diversity against jamming.
Conclusions
- Spatial diversity technology, specifically MISO implementation, effectively mitigates jamming in vertical UWOC systems.
- The proposed unified composite channel model accurately describes UOT-induced fading.
- This research provides valuable insights for designing robust jamming-resistant vertical UWOC systems.
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