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Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

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Published on: June 25, 2021

Simplified channel model for indoor VLC systems.

Qiong Zhao, Weilin Zhang, Chen Chen

|November 14, 2024

Summary

This study simplifies indoor visible light communication (VLC) channel modeling by decoupling receiver position and orientation. The simplified model offers accuracy in narrow fields-of-view (FOV), crucial for precise indoor VLC systems.

Area of Science:

Electrical Engineering
Optical Communications

Background:

Indoor visible light communication (VLC) channel modeling is complex, significantly affected by receiver position and orientation.
Existing models often require complete spatial and orientational information, posing practical challenges.

Purpose of the Study:

To develop a simplified channel model for indoor VLC systems.
To decouple and analyze the independent impacts of receiver position and orientation on the VLC channel.
To assess the model's accuracy concerning the field-of-view (FOV) and orientation parameters.

Main Methods:

Decoupling receiver position and orientation into independent random variables.
Developing a simplified VLC channel model utilizing partial orientation information, specifically the azimuth angle.

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Conducting theoretical analysis and simulations to evaluate model accuracy.

Comparing the simplified model against a complete channel model in a two-user precoding system.

Main Results:

The simplified channel model's accuracy is dependent on the field-of-view (FOV), with improved precision at narrower FOVs.
The proposed model demonstrates practical value, especially in narrow-FOV scenarios.
Performance comparison validates the simplified model's effectiveness in specific indoor VLC applications.

Conclusions:

A simplified indoor VLC channel model based on partial orientation information is proposed.
The model is accurate and suitable for narrow-FOV systems requiring high channel precision.
The model can be extended to wide-FOV systems where complete channel information is not essential.