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System and method for communication using orbital angular momentum with multiple layer overlay modulation

  • US 9,331,875 B2
  • Filed: 07/03/2014
  • Issued: 05/03/2016
  • Est. Priority Date: 04/04/2014
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • first signal processing circuitry for transmitting a signal including a plurality of data streams over a link, the first signal processing circuitry further comprising;

    first circuitry for processing each of the plurality of input data streams to generate a plurality of parallel pairs of data streams including an in-phase stream (I) and a quadrature-phase stream (Q) for each of the plurality of input data streams,modulating each of the plurality of parallel pairs of data streams with a selected one of at least three mutually orthogonal functions and each of the plurality of parallel pairs at a different signal width, respectively, to generate a plurality of data signals, each associated with one of the plurality of parallel pairs of data streams, andgenerating a plurality of composite data streams by overlaying at least one first data signal of the plurality of data signals in a first data layer with at least one second data signal of the plurality of data signals in a second data layer; and

    second circuitry for processing the plurality of composite data streams to associate with each of the plurality of composite data streams a Hermite polynomial to cause each of the plurality of composite data streams to be mutually orthogonal to each other on the link to enable transmission of each of the plurality of composite data streams on the link at a same time.

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