Efficient demodulation scheme for rolling-shutter-patterning of CMOS image sensor based visible light communications

Area of Science:

• Engineering
• Computer Science
• Optical Communications

Background:

• Modern mobile phones feature high-resolution complementary-metal-oxide-semiconductor (CMOS) image sensors.
• CMOS image sensors present an opportunity for visible light communication (VLC) applications.

Purpose of the Study:

• To propose and demonstrate an efficient demodulation scheme for image sensor-based VLC.
• To synchronize and demodulate the rolling shutter pattern inherent in CMOS sensors for reliable data transmission.

Main Methods:

• Development of a novel algorithm for demodulating rolling shutter patterns in VLC.
• Implementation and evaluation of the proposed demodulation scheme.
• Comparative analysis of bit-error-rate (BER) performance and processing latency against existing thresholding methods.

Main Results:

• Demonstration of an efficient demodulation scheme for CMOS image sensor-based VLC.
• The proposed algorithm successfully synchronizes and demodulates rolling shutter patterns.
• Evaluation of BER performance and processing latency, showing competitive results.

Conclusions:

• The developed demodulation scheme is effective for visible light communication using CMOS image sensors.
• The method offers a viable solution for synchronizing and demodulating rolling shutter data.
• The scheme provides a practical approach for enhancing the performance of image sensor-based VLC systems.