研究目的
Investigating the performance of VCSEL-based optical wireless communication (OWC) channel estimation using a Monte Carlo ray-tracing algorithm with Gaussian beam emitter.
研究成果
The proposed MCRM with Gaussian beam emitter shows better performance in terms of impulse response and relative error compared to Lambertian emitter systems. Uplink models exhibit larger and faster impulse responses than full-link models, while full-link models show better performance in root mean square time delay. Gaussian beam emitters are promising for indoor OWC systems.
研究不足
The study is limited to indoor OWC systems with specific models (uplink and full-link) and does not explore outdoor or other complex environments. The maximum data rate estimation is provided without optimization.
1：Experimental Design and Method Selection:
The study employs a Monte Carlo ray-tracing method (MCRM) based on Gaussian beam emitter for OWC channel estimation. Two typical indoor communication systems, uplink and full-link models, are established.
2：Sample Selection and Data Sources:
The study specifies emitter and receiver positions and their orientation vectors for both uplink and full-link models.
3：List of Experimental Equipment and Materials:
Parameters such as room dimensions, reflection coefficients, effective receiving area, transmitter divergence angle, half angle of FOV, and number of rays are specified.
4：Experimental Procedures and Operational Workflow:
The MCRM traces the propagation of each ray to count the impulse response, estimate the relative error, and calculate the root mean square time delay.
5：Data Analysis Methods:
The study analyzes impulse responses, relative errors, and channel delays to evaluate the performance of the proposed models.
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