In this paper, a user grouping scheme is proposed which takes the advantage of channel aware subcarrier allocated to it, the scheme is used for the multi-user visible light communication networks using non-orthogonal multiple access in conjugation with orthogonal frequency division multiplexing access. The work forms grouping of users with best channel conditions with user with worst channel condition and so on. In this grouping, no group has worse channel conditions. Two user groups are created and compared by assigning different subcarriers. The subcarriers assigned are interleaved. The work is reducing BER, outage probability and energy efficiency as compared to existing work in literature.