Proximity-Driven Light Intensity Modulation for Enhanced Bidirectional Optical Camera Communication

Wireless communication has provided numerous advantages across various sectors and in human lives in recent years. It is considered convenient, flexible, and easy to set up. Recently, optical wireless communication (OWC) has emerged as an alternative to radio frequency (RF)-based communication. Optical camera communication (OCC), a sub-topic of OWC, has garnered research interest due to its potential benefits, including high. However, intensity in OCC needs to be regulated, as it can cause disruptions in communication when performed at various distances. In this paper, we propose a method to regulate light intensity based on proximity in a bidirectional communication scenario. Proximity is measured through the transmitter area size in the 2D representation. The experiment demonstrates that the proximity approach can be used as a parameter to regulate light intensity at various distances. Furthermore, the experiment is conducted without modifying any camera parameters, making it adaptable for average brightness environmental conditions.