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Color Intensity Modulation for Multicolored Visible Light Communications

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2 Author(s)
Ahn, K.-I. ; Mando Global R&D Center, Seongnam, Korea ; Kwon, J.K.

This letter explains color space and signal space in visible light communications using multicolored LEDs. We propose the concept of color intensity modulation that satisfies color and dimming requirements in color space and maximizes communication capacity in signal space. The capacity values and corresponding signal constellation examples are given for orthogonal and nonorthogonal channels.

Published in:

Photonics Technology Letters, IEEE  (Volume:24 ,  Issue: 24 )