Techniques to perform iterative decoding of concatenated low-density parity-check codes (LDPC) are described. Iterative decoding of the concatenated code is achieved by performing T common iterations, wherein a common iteration comprises t1 decoding iterations on the inner LDPC code my means of a first decoder (340) followed by t2 decoding iterations on the outer LDPC code my means of a second decoder (350) , and wherein the two decoders exchange soft-output information.