S.I. Prikhod'ko, M.S. Kurcev, Khamze Bilal

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A comparative study of computer algorithms proposed encoding and decoding concatenated codes in the frequency domain, which showed that the transition in the frequency domain conversion usually leads to a substantial reduction of computational complexity. This reduction is comparable to the transition from a given code block length to the respective stages of the same length. Application code simultaneously cascade structures and computational procedures in the frequency domain allows the smallest computational complexity.