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Thermally-induced Spectral Variations of LED applied to Optical Multispectral Camera Communications

Abstract:

Optical Camera Communication (OCC) applications have intensively risen in recent years. This work proposes using a multispectral or hyperspectral camera as an OCC receiver to take advantage of the high spectral resolution of this type of device with respect to conventional cameras. Furthermore, spectral features of the LEDs, usually used as transmitters in OCC, are affected by temperature. Hence, one of the goals of this work is to benefit from those spectral variations that will be grasped by the multispectral camera and thus achieve a new data channel. Therefore, different communication channels could be obtained from a single light source.