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Optical wireless communication (OWC) has emerged as a cost-effective, interference-resistant technology with access to a wide spectrum. As part of OWC, Optical Camera Communication (OCC) has garnered significant attention, operating by transmitting optical signals through Light Emitting Diodes (LEDs) and receiving them with a camera. However, existing approaches do not consider modulation adjustments in dynamic communication scenarios, which can impact data rates and Bit Error Rate (BER) in OCC. Therefore, a method for estimating the distance between the transmitter and receiver in dynamic environments is introduced. This system enables the transmitter to select the appropriate modulation type for data transmission. During testing, the proposed method successfully operated in dynamic conditions, achieving a distance estimation error of 2%. It offered a performance of 7.2 Kbps for OOK modulation, 26.8 kbps for RGB modulation, a Mean Average Precision (mAP) of 0.995, and a processing speed of 2.351 ms.
Sitanggang et al. (Mon,) studied this question.