burst_random.c

介绍关于WiMax（IEEE802.16）物理层调制解调编码等相关设计实现

/*****************************************************************************/
/*   FIle Name : burst_random.c                                              */
/*   Description : Wi-Max-SC a single frame with single burst test w/random  */
/*   author : miffie                                                         */
/*   Date   : oct/14/05                                                      */
/*   Copyright (c) 2005 miffie   All rights reserved.                        */
/*****************************************************************************/

int burst_random() { //burst_random

int 	ii ;
struct	binaryset bset0,bset1 , bexp;
struct  complexset cset0, cset1 , ctop , sram ;
char 	*top , *tmp ;
short	num_octet ;
int	fail = 1 ;
char    tx_freqerr , rx_freqerr ;
char	level , multi ;
struct 	Downlink_Burst_Profile diuc1 ;

char	shifter, phase ;
int     detection ;
static  char NO_NOISE = 0 ;

  printf(" Copyright (c) 2005 miffie   All rights reserved.\n") ;
  //Main 
  //
  num_octet = int_random(4096)  ;
  if ((top = (char *)malloc(num_octet*sizeof(char)) ) == NULL) {
        PRINTF( " malloc failed in burst_rand.c\n") ;
  } //fail
  else { //allocated
   ///diuc1.fec_code_type = int_random(6) +7 ; //7-12 
   diuc1.fec_code_type = int_random(20) ; //0-19
   diuc1.TCS_enable = 0 ; //int_random(2) ; //0-1

  //Make DATA bits
    bset0.data = top ;
    bset0.size = num_octet ;
    bset0.format = 1 ;
    tmp = top ;
    ii=0 ;
/*
    tmp[ii++] = 0x45 ; 
    tmp[ii++] = 0x29 ; 
    tmp[ii++] = 0xc4 ; 
    tmp[ii++] = 0x79 ; 
    tmp[ii++] = 0xad ; 
    tmp[ii++] = 0x0f ; 
    tmp[ii++] = 0x55 ; 
    tmp[ii++] = 0x28 ; 
    tmp[ii++] = 0xad ; 
    tmp[ii++] = 0x87 ; 
    tmp[ii++] = 0xb5 ; 
    tmp[ii++] = 0x76 ; 
    tmp[ii++] = 0x1a ; 
    tmp[ii++] = 0x9c ; 
    tmp[ii++] = 0x80 ; 
    tmp[ii++] = 0x50 ; 
    tmp[ii++] = 0x45 ; 
    tmp[ii++] = 0x1b ; 
    tmp[ii++] = 0x9f ; 
    tmp[ii++] = 0xd9 ; 
    tmp[ii++] = 0x2a ; 
    tmp[ii++] = 0x88 ; 
    tmp[ii++] = 0x95 ; 
    tmp[ii++] = 0xeb ; 
    tmp[ii++] = 0xae ; 
    tmp[ii++] = 0xb5 ; 
    tmp[ii++] = 0x2e ; 
    tmp[ii++] = 0x03 ; 
    tmp[ii++] = 0x4f ; 
    tmp[ii++] = 0x09 ; 
    tmp[ii++] = 0x14 ; 
    tmp[ii++] = 0x69 ; 
    tmp[ii++] = 0x58 ; 
    tmp[ii++] = 0x0a ; 
    tmp[ii++] = 0x5d ; 
*/
    for ( ii = 0 ; ii<bset0.size ;ii++ ) {
     *tmp++ = int_random(256)  ;
    }
    bexp = copy_binaryset( bset0 ) ; //copy expectation data
    print_binaryset( bset0 ) ;

    //
    ctop = frame_enc ( bset0 , diuc1 ) ; //

    fprint_complexset( "frame.dat" , ctop ) ;
    ctop = doubler( ctop ) ;
    //fprint_complexset( "doubler.dat" , ctop ) ;
  
    ////Channel Estimation
    tx_freqerr = 0 ;
    rx_freqerr = (NO_NOISE) ? 0 : int_random(21) -10 ;
    level = (NO_NOISE) ? 0 : 36 ; //24:-96dB (1/64k)   
    multi = (NO_NOISE) ? 0 :  0 ;
    //                           mode  multi  level  tx_freqerr  rx_freqerr
    ctop =  pseudo_channel( ctop , 0 , multi, level, tx_freqerr, rx_freqerr ) ;  
    print_complexset( ctop ) ;
//
    printf("diuc1.fec_code_type=%d\n" , diuc1.fec_code_type ) ;
    bset0 = frame_dec ( ctop , diuc1 ) ; 
    print_binaryset( bset0 ) ;
    if (bset0.size >= bexp.size ) {
      bset0.size = bexp.size ; //remove stuff bytes.
      fail = compare_binaryset( bexp, bset0 ) ; //compare expectation data and decoded data
    } else fail=1 ;
  } //allocated
    //free( ctop.data ) ;
    //free( bexp.data ) ;
    return( fail ) ;
} //burst_random