1. A method for decoding a low density parity check (LDPC) coded signal, the method comprising: retrieving edge values associated with a structured parity check matrix used to generate the LDPC coded signal, wherein the edge values specify relationship of bit nodes and check nodes, and are stored according to a predetermined scheme that permits concurrent retrieval of a set of the edge values; and outputting a decoded signal corresponding to the LDPC coded signal based on the retrieved edge values.