ITERATIVE DECODING METHOD AND ITERATIVE DECODING APPARATUS

摘要

PURPOSE: An iterative decoding method and an iterative decoding apparatus are provided to improve a bit error rate by outputting estimated values of all corresponding variable nodes as a final decoding result when a minimum number of check nodes dose not satisfy a parity check formula. CONSTITUTION: An iterative decoding method and an iterative decoding apparatus include a data buffer and a decoding block. The first estimated values corresponding to all variable nodes are stored into a buffer when an error bit number is minimum by using an iterative decoding algorithm while increasing the number of iterative decoding from one to a maximum iteration number gradually(S10-S30). The first estimated values stored in the buffer are outputted as a final decoding result when the iteration number is reached to the maximum iteration number(S40-S50).