Low density parity check encoder having length of 64800 and code rate of 5/15, 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 64800 and a code rate of 5/15. 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 64800 and a code rate of 5/15; 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 sequence is represented by the following Sequence Table:Sequence Table1st row:221 1011 1218 4299 7143 8728 11072 15533 17356 33909 368332nd row:360 1210 1375 2313 3493 16822 21373 23588 23656 26267 340983rd row:544 1347 1433 2457 9186 10945 13583 14858 19195 34606 374414th row:37 596 715 4134 8091 12106 24307 24658 34108 40591 428835th row:235 398 1204 2075 6742 11670 13512 23231 24784 27915 347526th row:204 873 890 13550 16570 19774 34012 35249 37655 39885 428907th row:221 371 514 11984 14972 15690 28827 29069 30531 31018 431218th row:280 549 1435 1889 3310 10234 11575 15243 20748 30469 360059th row:223 666 1248 13304 14433 14732 18943 21248 23127 38529 3927210th row:370 819 1065 9461 10319 25294 31958 33542 37458 39681 4003911th row:585 870 1028 5087 5216 12228 16216 16381 16937 27132 2789312th row:164 167 1210 7386 11151 20413 22713 23134 24188 36771 3899213th row:298 511 809 4620 7347 8873 19602 24162 29198 34304 4114514th row:105 830 1212 2415 14759 15440 16361 16748 22123 32684 4257515th row:659 665 668 6458 22130 25972 30697 31074 32048 36078 3712916th row:91 808 953 8015 8988 13492 13987 15979 28355 34509 3969817th row:594 983 1265 3028 4029 9366 11069 11512 27066 40939 4163918th row:506 740 1321 1484 10747 16376 17384 20285 31502 38925 4260619th row:338 356 975 2022 3578 18689 18772 19826 22914 24733 2743120th row:709 1264 1366 4617 8893 25226 27800 29080 30277 37781 3964421st row:840 1179 1338 2973 3541 7043 12712 15005 17149 19910 3679522nd row:1009 1267 1380 4919 12679 22889 29638 30987 34637 36232 3728423rd row:466 913 1247 1646 3049 5924 9014 20539 34546 35029 3654024th row:374 697 984 1654 5870 10883 11684 20294 28888 31612 3403125th row:117 240 635 5093 8673 11323 12456 14145 21397 39619 4255926th row:122 1265 1427 13528 14282 15241 16852 17227 34723 36836 3979127th row:595 1180 1310 6952 17916 24725 24971 27243 29555 32138 3598728th row:140 470 1017 13222 13253 18462 20806 21117 28673 31598 3723529th row:7 710 1072 8014 10804 13303 14292 16690 26676 36443 4196630th row:48 189 759 12438 14523 16388 23178 27315 28656 29111 2969431st row:285 387 410 4294 4467 5949 25386 27898 34880 41169 4261432nd row:474 545 1320 10506 13186 18126 27110 31498 35353 36193 3732233rd row:1075 1130 1424 11390 13312 14161 16927 25071 25844 34287 3815134th row:161 396 427 5944 17281 22201 25218 30143 35566 38261 4251335th row:233 247 694 1446 3180 3507 9069 20764 21940 33422 3935836th row:271 508 1013 6271 21760 21858 24887 29808 31099 35475 3992437th row:8 674 1329 3135 5110 14460 28108 28388 31043 31137 3186338th row:1035 1222 1409 8287 16083 24450 24888 29356 30329 37834 3968439th row:391 1090 1128 1866 4095 10643 13121 14499 20056 22195 3059340th row:55 161 1402 6289 6837 8791 17937 21425 26602 30461 3724141st row:110 377 1228 6875 13253 17032 19008 23274 32285 33452 4163042nd row:360 638 1355 5933 12593 13533 23377 23881 24586 26040 4166343rd row:535 1240 1333 3354 10860 16032 32573 34908 34957 39255 4075944th row:526 936 1321 7992 10260 18527 28248 29356 32636 34666 3555245th row:336 785 875 7530 13062 13075 18925 27963 28703 33688 3650246th row:36 591 1062 1518 3821 7048 11197 17781 19408 22731 2478347th row:214 1145 1223 1546 9475 11170 16061 21273 38688 40051 4247948th row:1136 1226 1423 20227 22573 24951 26462 29586 34915 42441 4304849th row:26 276 1425 6048 7224 7917 8747 27559 28515 35002 3764950th row:127 294 437 4029 8585 9647 11904 24115 28514 36893 3972251st row:748 1093 1403 9536 19305 20468 31049 38667 40502 40720 4194952nd row:96 638 743 9806 12101 17751 22732 24937 32007 32594 3850453rd row:649 904 1079 2770 3337 9158 20125 24619 32921 33698 3517354th row:401 518 984 7372 12438 12582 18704 35874 39420 39503 3979055th row:10 451 1077 8078 16320 17409 25807 28814 30613 41261 4295556th row:405 592 1178 15936 18418 19585 21966 24219 30637 34536 3783857th row:50 584 851 9720 11919 22544 22545 25851 35567 41587 4187658th row:911 1113 1176 1806 10058 10809 14220 19044 20748 29424 3667159th row:441 550 1135 1956 11254 18699 30249 33099 34587 35243 3995260th row:510 1016 1281 8621 13467 13780 15170 16289 20925 26426 3447961st row:4969 5223 17117 21950 22144 24043 27151 3980962nd row:11452 13622 18918 19670 23995 32647 37200 3739963rd row:6351 6426 13185 13973 16699 22524 31070 3191664th row:4098 10617 14854 18004 28580 36158 37500 38552.