Unequal error protection scheme for headerized sub data sets

摘要

A method for decoding a headerized sub data set (SDS) according to one embodiment includes decoding a header from a headerized SDS to obtain a SDS. C1 and C2 decoding are performed on the SDS in a number of iterations based on a number of interleaves in each row of the SDS. A number of columns of the SDS are overwritten with successfully decoded C2 codewords. A number of rows of the SDS are overwritten with successfully decoded C1 codewords. A number of C1 and/or C2 codewords of the SDS are erased. Remaining rows and/or columns of the SDS are maintained as uncorrected. The SDS is output when all rows of the SDS include only C1 codewords and all columns of the SDS include only C2 codewords.

主权项

1. A system for decoding a headerized sub data set (SDS), the system comprising:
a processor and logic integrated with and/or executable by the processor, the logic including: logic configured to decode a header from a headerized SDS to obtain a SDS; logic configured to perform an error check on the header; logic configured to erase row parity associated with the header from the SDS to indicate that C1 row parity is unknown when the header fails the error check; logic configured to perform C1 and C2 decoding on the SDS in a number of iterations based on a number of interleaves in each row of the SDS; logic configured to overwrite a number of columns of the SDS with successfully decoded C2 codewords; logic configured to overwrite a number of rows of the SDS with successfully decoded C1 codewords; logic configured to erase a number of C1 and/or C2 codewords of the SDS; logic configured to maintain remaining rows and/or columns of the SDS as uncorrected; and logic configured to output the SDS when all rows of the SDS include only C1 codewords and all columns of the SDS include only C2 codewords.