METHOD AND APPARATUS FOR CHANNEL ENCODING AND DECODING IN COMMUNICATION SYSTEM USING LOW-DENSITY PARITY-CHECK CODES

摘要

FIELD: information technology. ^ SUBSTANCE: apparatus and method for encoding a channel in a communication system using a low-density parity-check (LDPC) code are disclosed. Parameters for developing the LDPC code are determined and a first parity-check matrix of a quasi-cyclic LDPC code is generated in accordance with said determined parameters. A second parity-check matrix is generated by deleting a predetermined portion of the parity part in the first parity-check matrix and a third party-check matrix is generated by reordering the second parity-check matrix. ^ EFFECT: efficient enhancement of cycle characteristics when developing LDPC codes having a DVD-S2 structure. ^ 16 cl, 13 dwg, 17 tbl