CPC H03M 13/2792 (2013.01) [G06F 11/1076 (2013.01); H03M 13/1102 (2013.01); H03M 13/116 (2013.01); H03M 13/1148 (2013.01); H03M 13/1185 (2013.01); H03M 13/255 (2013.01); H03M 13/2778 (2013.01); H03M 13/616 (2013.01); H03M 13/6552 (2013.01); H04L 1/0041 (2013.01); H04L 1/0045 (2013.01); H04L 1/0058 (2013.01); H04L 1/0071 (2013.01)] | 4 Claims |
1. A bit-interleaved coded modulation (BICM) reception device, comprising:
a demodulator configured to perform demodulation corresponding to 16-symbol mapping after receiving a broadcasting signal;
a bit deinterleaver configured to perform group-unit deinterleaving on interleaved values, the interleaved values generated after the demodulation; and
a decoder configured to restore information bits by Low-Density Parity Check (LDPC)-decoding deinterleaved values generated based on the group-unit deinterleaving, the deinterleaved values corresponding to a LDPC codeword having a length of 16200 and a code rate of 4/15,
wherein the group-unit deinterleaving is performed on a group basis, the size of the group corresponding to a parallel factor of the LDPC codeword,
wherein the LDPC codeword is encoded using a sequence corresponding to a parity check matrix (PCM) and comprises a systematic part corresponding to information bits and having a length of 4320, a first parity part corresponding to a dual diagonal matrix included in the PCM and having a length of 1080, and a second parity part corresponding to an identity matrix included in the PCM and having a length of 10800,
wherein the sequence is represented by the following Sequence Table:
Sequence Table
11st row:19 585 710 3241 3276 3648 6345 9224 9890 10841
2nd row: 181 494 894 2562 3201 4382 5130 5308 6493 10135
3rd row: 150 569 919 1427 2347 4475 7857 8904 9903
4th row: 1005 1018 1025 2933 3280 3946 4049 4166 5209
5th row: 420 554 778 6908 7959 8344 8462 10912 11099
6th row: 231 506 859 4478 4957 7664 7731 7908 8980
7th row: 179 537 979 3717 5092 6315 6883 9353 9935
8th row: 147 205 830 3609 3720 4667 7441 10196 11809
9th row: 60 1021 1061 1554 4918 5690 6184 7986 11296
10th row: 145 719 768 2290 2919 7272 8561 9145 10233
11th row: 388 590 852 1579 1698 1974 9747 10192 10255
12th row: 231 343 485 1546 3155 4829 7710 10394 11336
13th row: 4381 5398 5987 9123 10365 11018 11153
14th row: 2381 5196 6613 6844 7357 8732 11082
15th row: 1730 4599 5693 6318 7626 9231 10663,
wherein the group-unit deinterleaving corresponds to a reverse process of interleaving performed by using a permutation order, and
the permutation order corresponds to an interleaving sequence represented by the following
interleaving sequence
={34 3 19 35 25 2 17 36 26 38 0 40 27 10 7 43 21 28 15 6 1 37 18 30 32 33 29 22 12 13 5 23 44 14 4 31 20 39 42 11 9 16 41 8 24} and
wherein the interleaving is performed corresponding to the interleaving sequence so as to distribute burst errors occurring in the broadcasting signal when the broadcasting signal is transmitted over a broadcasting channel.
|