#ifndef QAMSoftDem_h
#define QAMSoftDem_h

struct    AWGN
{	
	int      ix;
	int      iy;
	int      iz;
	double     snr;
	double     sigma;
	double     I_sigma;      
	double     rate;
};

long s1,s2;
int generate_binary_source();
int QAMDem (double *sig_rel,double *sig_img,int siglen,int *outbit);
void awgn_channel (double *in_real ,double *in_img, double *out_real,double*out_img, struct AWGN *gauss , int len);
int GrayMap16QAM (int *inbit,int bitlen,double *out_real,double *out_img);



#endif