main_ctc.c

这个文件包括wimax中所有的编解码源代码

/*****************************************************************************/
/*   FIle Name : main_turbo.c                                                */
/*   Description : Main routine to Test FEC  Type2                           */
/*   author : miffie                                                         */
/*   Date   : sep/26/05                                                      */
/*   Copyright (c) 2005 miffie   All rights reserved.                        */
/*****************************************************************************/

#include <math.h>
#include <stdio.h>
#include <stdlib.h>

//Global variables
char   print_on = 1 ;
#define  PRINTF if (print_on) printf
#define  FPRINTF if (print_on) fprintf

#include "../env/binaryset.c"
#include "../env/utility.c"

#include "ctc_encoder.c"
#include "viterbi_ctc.c"
#include "ctc_decoder.c"

main()
{
  register int ii , jj, kk ;
  char fail  ;
  short  NN  , noise   ;
  struct  binaryset exp , encoded, bset0, bset1;
  unsigned char     data[512] ;
  char fec_code_type ;
  
  //multiple tests
  for  (jj=0;jj<100;jj++) { //each test
    /* for known data, stick a few numbers into a zero codeword. Data is in
       polynomial form.
    */
    //make a binary set
    NN = 6*16 ; //(int_random(27) +1)*16 ; //16-27*16
    fec_code_type = 13 ; // int_random(7) + 13 ; //13-19
    printf("\n %d th Test(fec_code_type=%d NN=%d\n\n", jj, NN, fec_code_type ) ;
    for  (ii=0; ii<NN/4; ii++)   data[ii] = int_random(256) ;

    bset0.format = 1 ;
    bset0.data = &data[0] ;
    bset0.size = NN/4 ;
  
    exp = copy_binaryset(bset0) ;
    print_binaryset(bset0) ;

    bset0 =  ctc_encoder(bset0, fec_code_type , 16 ) ;
    print_binaryset(bset0) ;
    encoded = copy_binaryset(bset0) ;
    for(ii=0;ii<bset0.size;ii++)  bset0.data[ii] = (bset0.data[ii]) ? 0xf : 0x0 ;

    /* if you want to test the program, corrupt some of the elements of recd[]
       here. This can also be done easily in a debugger. */
    for(ii=0; ii<bset0.size; ii++) { //for
       noise = pow_random(10, 3) ;
       bset0.data[ii] = (bset0.data[ii]) ? 0xf - noise  : noise ;
    }//
  
    print_binaryset(bset0) ;

    ///* decode recv[] */
    bset0 = ctc_decoder( bset0, fec_code_type, 16 ) ;

    print_binaryset(bset0) ;
    fail = compare_binaryset( exp , bset0 ) ;
    if (fail) printf(" %d th Test was failed\n" , jj) ;
    else printf(" %d th Test was passed\n" , jj) ;

  } //each test
}