H ELECTRICITY
H03 ELECTRONIC CIRCUITRY
H03M CODING; DECODING; CODE CONVERSION IN GENERAL
H03M13/00 Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
H03M13/61 Aspects and characteristics of methods and arrangements for error correction or error detection, not provided for otherwise
H03M13/615 Use of computational or mathematical techniques
H03M13/616 Matrix operations, especially for generator matrices or check matrices, e.g. column or row permutations