A system includes an interface for receiving a plurality of data streams from a plurality of data sources. A multiplexor groups the plurality of data streams into a plurality of groups. A plurality of orthogonal frequency division multiplexing (OFDM) processing circuitries apply a same OFDM processing to each of the plurality of groups using a same combination of frequency and time slot combinations on each of the plurality of groups. A modulator modulates each of the OFDM processed groups onto a same signal bandwidth by applying a different, unique orthogonal function to each of the OFDM processed groups. The unique orthogonal functions defined by a path on and between the surfaces of a plurality of concentric orthogonal state spheres defining each of the different, unique orthogonal functions. A transmitter transmits modulated OFDM processed groups over the communications link in accordance with each of the different, unique orthogonal functions defined by the path on and between the surfaces of the plurality of concentric orthogonal state spheres.