LOW DENSITY PARITY CHECK CODE FOR TERRESTRIAL CLOUD TRASMISSION

摘要

Provided is a low density parity check (LDPC) for terrestrial cloud broadcast. A method of an LDPC encoder for encoding input information includes: a step of inputting information; and a step of encoding the input information into an LDPC code language by using a parity check matrix. The parity check matrix may be a structure in which a first parity check matrix for an LDPC code higher than a reference value is combined with a second parity check matrix for an LDPC code lower than the reference value. The present invention provides LDPC codes which operate even in a negative signal to noise ratio environment for terrestrial cloud broadcast.