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Article

Векторизация вычислений при декодировании недвоичных кодов с малой плотностью проверок

Иванов Ф. И., Жилин И. В.

A modification of the decoding q-ary Sum Product Algorithm (q-SPA) was proposed for the nonbinary codes with small check density based on the permutation matrices. The algorithm described has a vector realization and operates over the vectors defined on the field GF(q), rather than over individual symbols. Under certain code parameters, this approach enables significant speedup of modeling.