Solar module as a high-speed data receiver with ambient light suppression in an outdoor scenario

Area of Science:

• Optical Communications
• Hardware Implementation
• Signal Processing

Background:

• Future networks demand cost-effective, energy-efficient, high-speed data transmission.
• Light communication (LC) offers a viable solution using the unlicensed light spectrum.
• Outdoor LC faces challenges from ambient light and receiver misalignment.

Purpose of the Study:

• To present a hardware implementation for ambient light suppression in LC.
• To enhance the bandwidth of a solar module for data reception.
• To address challenges in outdoor light communication systems.

Main Methods:

• Developed analog circuitry for ambient light suppression.
• Utilized a solar module as a data receiver with enhanced bandwidth.
• Tested the system in an outdoor environment with varying light intensities.

Main Results:

• Achieved 99% suppression of ambient light.
• Demonstrated a peak ambient light intensity of 93,500 lx.
• Attained a maximum data rate of 5.5 Mbps over a 3.5 m transmission distance.

Conclusions:

• The implemented hardware effectively suppresses ambient light for outdoor LC.
• Solar modules offer a robust solution for receiver misalignment and data reception.
• This work advances the feasibility of high-speed, cost-effective outdoor light communication.