#ifndef _obj_funcs_h_
#define _obj_funcs_h_

#include "jn_math.h"
double standard_snr(double rcv, double interference, double noise)
{
	double obj;
	obj = rcv/(interference + noise);
	return obj;
};

double log_snr(double rcv, double interference, double noise)
{
	double obj;
	obj = log(rcv) - log(interference + noise);
	return obj;
};

double ber(double rcv, double interference, double noise)
{
	double obj;
	obj = 1 - Q(sqrt(2*rcv/(interference + noise)));
	return obj;
};

double target_standard_snr(double rcv, double interference, double noise, double snr_target)
{
	double obj;
	double temp;
	temp = rcv/(interference + noise);
	obj = 1 - abs(snr_target - temp);
	return obj;	
};

double target_standard_ber(double rcv, double interference, double noise, double ber_target)
{
	double obj;
	double temp;
	temp = Q(sqrt(2*rcv/(interference + noise)));
	obj = 1 - abs(log10(ber_target) - log10(temp));
	return obj;	
};

double bit_watt(double rcv, double interference, double noise, double xmt)
{
	double obj;
	obj = 1 - Q(sqrt(2*rcv/(interference + noise)));
	obj = obj/xmt;
	return obj;
};

#endif