Constellation Design for Color-Shift Keying Using Interior Point Methods

Color-shift keying (CSK) is a visible light modulation scheme that transmits data imperceptibly through the variation of output light color. In this work, a rigorous design framework for CSK constellations is presented based on interior point methods. A differentiable approximation to the CSK constellation design problem is presented which is compatible with commercial interior point optimization algorithms and is used to find locally optimal …