SERIAL CONCATENATION SCHEME AND ITS ITERATIVE DECODING USING AN INNER LDPC AND AN OUTER BCH CODE

摘要

Disclosed is a method and apparatus for decoding (2) error correction coded data (12, 201), having a BCH decoder (211) and an LDPC decoder (205) connected in series (207). For improving the error correction performance, the BCH decoder (211) inputs reliability information, uses maximum-likelihood sequence estimation for decoding, and outputs modified reliability information, and the input (204, 209) of at least one of the BCH decoder (211) and the LDPC decoder (205) is connected to the output (207, 213) of the respective other decoder (205, 211), to receive the reliability information originating therefrom.