MODULATION AND MULTIPLE ACCESS TECHNIQUE USING ORBITAL ANGULAR MOMENTUM

摘要

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.

主权项

1. A method for multiple access communications over a communications link comprising:
receiving a plurality of data streams from a plurality of data sources; grouping the plurality of data streams into a plurality of groups; applying orthogonal frequency division multiplexing (OFDM) processing to each of the plurality of groups, wherein each of the plurality of groups re-uses a combination of frequency and time slot combinations in the OFDM processing; modulating 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; and transmitting the 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.