We have proposed a joint constellation design scheme termed DCI-JCFM taking advantage of the wavelength, frequency, and adaptive bias diversities at the same time for indoor VLC systems. By applying the DCI-JCFM scheme, waveform symbols with a much larger MED can be obtained than those from a decoupled scheme with or without channel cross-talks. In the future, we will make a comprehensive power-efficiency comparison between the proposed DCI-JCFM scheme and the conventional MSM scheme under the same spectral efficiency. We will also develop complexity-reduced algorithms for cases where the visible light channel changes fast. Moreover, we will design advanced pre coders to replace the SVD-based pre and post-equalizers utilized in this paper.