www.pudn.com > LDPCCode.rar > LDPC.h

#ifndef _LDPC_H_ 
#define _LDPC_H_ 
 
#include  
#include  
#include  
#include  
 
short		Column; 
short		H_row; 
short		G_row; 
 
/*Define the LDPC code parameters structure*/ 
struct	LDPCParam 
{ 
	short	mat_param[5]; 
	short	iterC; 
	short	*MatCol; 
	short	*MatRow; 
	short	*GMatrix; 
}; 
 
struct LDPCParam	ldpc_param; 
 
void LDPC_init(struct LDPCParam *p_ldpc_param, FILE *fpLDPC); 
 
void init_mat_para(short *mat_para, FILE *f_H_data); 
void array_sort (short *in , short length , short init_min); 
void gauss_elimate_to_P_I (short *mat_col , short *mat_row , short **t , short *rank , short *mat_para); 
void Construct_H_Matrix (short *mat_para , short *mat_col , short *mat_row, FILE *f_H_data); 
void Construct_G_Matrix (short *mat_col , short *mat_row , short **gen , short *mat_para); 
 
void LDPC_encode(short *gen, short *input, short *output, short *mat_para); 
double correct_factor(double x,double y); 
 
void BP_decoding(double		*llr_in, 
				 double		*llr_out, 
				 short		*dec_out, 
				 short		*mat_col, 
				 short		*mat_row, 
				 short		*mat_param, 
				 short		iterN); 
 
 
#endif