/* * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The OpenAirInterface Software Alliance licenses this file to You under * the OAI Public License, Version 1.1 (the "License"); you may not use this file * except in compliance with the License. * You may obtain a copy of the License at * * http://www.openairinterface.org/?page_id=698 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------------------- * For more information about the OpenAirInterface (OAI) Software Alliance: * contact@openairinterface.org */ /*!\file ldpc_generate_coefficient.c * \brief Generates the optimized LDPC encoder * \author Florian Kaltenberger, Raymond Knopp, Kien le Trung (Eurecom) * \email openair_tech@eurecom.fr * \date 27-03-2018 * \version 1.0 * \note * \warning */ #include #include #include #include #include "Gen_shift_value.h" #include "assertions.h" static inline short *choose_generator_matrix(short BG,short Zc) { short *Gen_shift_values = NULL; if (BG==1) { switch (Zc) { case 2: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_2; break; case 3: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_3; break; case 4: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_4; break; case 5: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_5; break; case 6: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_6; break; case 7: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_7; break; case 8: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_8; break; case 9: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_9; break; case 10: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_10; break; case 11: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_11; break; case 12: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_12; break; case 13: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_13; break; case 14: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_14; break; case 15: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_15; break; case 16: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_16; break; case 18: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_18; break; case 20: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_20; break; case 22: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_22; break; case 24: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_24; break; case 26: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_26; break; case 28: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_28; break; case 30: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_30; break; case 32: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_32; break; case 36: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_36; break; case 40: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_40; break; case 44: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_44; break; case 48: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_48; break; case 52: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_52; break; case 56: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_56; break; case 60: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_60; break; case 64: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_64; break; case 72: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_72; break; case 80: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_80; break; case 88: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_88; break; case 96: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_96; break; case 104: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_104; break; case 112: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_112; break; case 120: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_120; break; case 128: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_128; break; case 144: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_144; break; case 160: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_160; break; case 176: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_176; break; case 192: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_192; break; case 208: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_208; break; case 224: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_224; break; case 240: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_240; break; case 256: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_256; break; case 288: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_288; break; case 320: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_320; break; case 352: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_352; break; case 384: Gen_shift_values=(short *) Gen_shift_values_BG1_Z_384; break; } } else if (BG==2) { switch (Zc) { case 2: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_2; break; case 3: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_3; break; case 4: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_4; break; case 5: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_5; break; case 6: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_6; break; case 7: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_7; break; case 8: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_8; break; case 9: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_9; break; case 10: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_10; break; case 11: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_11; break; case 12: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_12; break; case 13: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_13; break; case 14: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_14; break; case 15: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_15; break; case 16: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_16; break; case 18: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_18; break; case 20: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_20; break; case 22: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_22; break; case 24: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_24; break; case 26: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_26; break; case 28: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_28; break; case 30: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_30; break; case 32: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_32; break; case 36: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_36; break; case 40: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_40; break; case 44: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_44; break; case 48: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_48; break; case 52: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_52; break; case 56: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_56; break; case 60: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_60; break; case 64: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_64; break; case 72: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_72; break; case 80: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_80; break; case 88: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_88; break; case 96: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_96; break; case 104: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_104; break; case 112: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_112; break; case 120: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_120; break; case 128: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_128; break; case 144: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_144; break; case 160: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_160; break; case 176: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_176; break; case 192: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_192; break; case 208: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_208; break; case 224: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_224; break; case 240: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_240; break; case 256: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_256; break; case 288: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_288; break; case 320: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_320; break; case 352: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_352; break; case 384: Gen_shift_values=(short *) Gen_shift_values_BG2_Z_384; break; } } return Gen_shift_values; } static inline int encode_parity_check_part_orig(unsigned char *c,unsigned char *d, short BG,short Zc,short Kb,short block_length) { short *Gen_shift_values=choose_generator_matrix(BG,Zc); short *no_shift_values, *pointer_shift_values; int no_punctured_columns; short nrows,ncols,rate=3; int i1,i2,i3,i4,i5,temp_prime; unsigned char channel_temp,temp; if (BG==1) { no_shift_values=(short *) no_shift_values_BG1; pointer_shift_values=(short *) pointer_shift_values_BG1; nrows=46; //parity check bits ncols=22; //info bits rate=3; } else if (BG==2) { no_shift_values=(short *) no_shift_values_BG2; pointer_shift_values=(short *) pointer_shift_values_BG2; nrows=42; //parity check bits ncols=10; //info bits rate=5; } else { printf("problem with BG: is %d\n", BG); return(-1); } no_punctured_columns=(int)((nrows-2)*Zc+block_length-block_length*rate)/Zc; //printf("no_punctured_columns = %d\n",no_punctured_columns); for (i2=0; i2 < Zc; i2++) { //t=Kb*Zc+i2; //rotate matrix here for (i5=0; i5 < Kb; i5++) { temp = c[i5*Zc]; memmove(&c[i5*Zc], &c[i5*Zc+1], (Zc-1)*sizeof(unsigned char)); c[i5*Zc+Zc-1] = temp; } // calculate each row in base graph for (i1=0; i1 < nrows-no_punctured_columns; i1++) { channel_temp=0; for (i3=0; i3 < Kb; i3++) { temp_prime=i1 * ncols + i3; for (i4=0; i4 < no_shift_values[temp_prime]; i4++) { channel_temp = channel_temp ^ c[ i3*Zc + Gen_shift_values[ pointer_shift_values[temp_prime]+i4 ] ]; } } d[i2+i1*Zc]=channel_temp; //channel_input[t+i1*Zc]=channel_temp; } } return(0); }