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Methods and systems for providing interference based physical-layer encryption

  • US 8,477,937 B2
  • Filed: 05/31/2011
  • Issued: 07/02/2013
  • Est. Priority Date: 04/07/2011
  • Status: Active Grant
First Claim
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1. A method for encrypting an information carrier signal comprising:

  • generating a sequence of data using a sequence generator;

    modulating, using a first modulator an output from the sequence generator such that an interference signal results;

    encoding synchronization information generated by the sequence generator using an encoder;

    modulating, using a second modulator, the encoded synchronization information such that a synchronization carrier signal results;

    spreading the synchronization carrier signal using a spreader such that a spread sub-carrier synchronization signal results; and

    combining a modulated information carrier signal, the interference signal, and the spread sub-carrier synchronization signal using a signal combiner such that a composite signal results, the interference signal having one or more signal characteristics that results in obfuscation of the information carrier signal when the information carrier signal and interference signal are combined.

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