Low density parity check encoder having length of 16200 and code rate of 2/15, and low density parity check encoding method using the same

摘要

A low density parity check (LDPC) encoder, an LDPC decoder, and an LDPC encoding method are disclosed. The LDPC encoder includes first memory, second memory, and a processor. The first memory stores an LDPC codeword having a length of 16200 and a code rate of 2/15. The second memory is initialized to 0. The processor generates the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM).

主权项

1. A low density parity check (LDPC) encoder, comprising:
first memory configured to store an LDPC codeword having a length of 16200 and a code rate of 2/15; second memory configured to be initialized to 0; and a processor configured to generate the LDPC codeword corresponding to information bits by performing accumulation with respect to the second memory using a sequence corresponding to a parity check matrix (PCM), wherein the LDPC codeword comprises a systematic part corresponding to the information bits and having a length of 2160, a first parity part corresponding to a dual diagonal matrix included in the PCM and having a length of 3240, and a second parity part corresponding to an identity matrix included in the PCM and having a length of 10800, wherein the sequence has a number of rows equal to a sum of a value obtained by dividing the length of the systematic part by a circulant permutation matrix (CPM) size corresponding to the PCM, and a value obtained by dividing the length of the first parity part by the CPM size, and wherein the sequence is represented by the following Sequence Table:Sequence Table1st row:2889 3122 3208 4324 5968 7241 132152nd row:281 923 1077 5252 6099 10309 111143rd row:727 2413 2676 6151 6796 8945 125284th row:2252 2322 3093 3329 8443 12170 137485th row:575 2489 2944 6577 8772 11253 116576th row:310 1461 2482 4643 4780 6936 119707th row:8691 9746 10794 135828th row:3717 6535 12470 127529th row:6011 6547 7020 1174610th row:5309 6481 10244 1382411st row:5327 8773 8824 1334312nd row:3506 3575 9915 1360913rd row:3393 7089 11048 1281614th row:3651 4902 6118 1204815th row:4210 10132 13375 13377.