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Multiple-field based code generator and decoder for communications systems

  • US 9,270,414 B2
  • Filed: 02/13/2007
  • Issued: 02/23/2016
  • Est. Priority Date: 02/21/2006
  • Status: Expired due to Fees
First Claim
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1. A method of encoding data for transmission from a source to a destination over a communications channel that is expected to perform as an erasure channel at least partially, the method comprising:

  • obtaining an ordered set of input symbols representing the data to be encoded;

    selecting a plurality of field arrays of values, wherein each field array is derived from a finite field array and at least two different finite field arrays are represented;

    generating a data structure that represents a coefficient matrix having entries of at least two of the field arrays derived from different finite field arrays, wherein a majority of the entries of the coefficient matrix are from a smaller finite field array, and a remainder of the entries of the coefficient matrix are from a larger finite field array;

    generating output symbols as linear combinations of input symbols with coefficients taken from the data structure that represents the coefficient matrix; and

    using the generated output symbols and an encoding for the data.

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