Single-collision-induced path loss model of reflection-assisted non-line-of-sight ultraviolet communications

Area of Science:

• Optical Communications
• Wireless Communication Systems
• Electromagnetics

Background:

• Non-line-of-sight (NLOS) ultraviolet communication (UVC) systems face challenges in modeling path loss.
• Existing models may not fully capture the impact of scattering and reflection events.
• Understanding these events is crucial for reliable UVC deployment.

Purpose of the Study:

• To propose a novel analytical path loss model for reflection-assisted NLOS UVC.
• To incorporate both scattering and reflection as collision-induced events (CIEs).
• To develop a single-collision-induced (SCI) path loss model.

Main Methods:

• Deriving analytical expressions for received optical energy from single-scatter and single-reflection events.
• Formulating the SCI path loss model based on these derived expressions.
• Validating the model using Monte-Carlo (MC) simulations and experimental results.

Main Results:

• The proposed SCI path loss model accurately quantifies received optical energy in reflection-assisted NLOS UVC.
• The model demonstrates effectiveness in both coplanar and noncoplanar geometric configurations.
• MC simulations and experimental data confirm the model's correctness.

Conclusions:

• The SCI path loss model provides a robust analytical framework for reflection-assisted NLOS UVC.
• This model enhances the understanding and prediction of signal propagation in UVC systems.
• The findings support the development of more efficient and reliable UVC technologies.