//sys_random.h
//the declaration of all random functions needed by the simulation project
//////////////////////////////////////////////////////////////////////////////

#if !defined(CDMA__SIMULATION__RANDOMFUNC__H__INCLUDE)
#define CDMA__SIMULATION__RANDOMFUNC__H__INCLUDE

#define PI   3.14159265

//void  initialize();                 //random program init
int   xPoisson(long,float,float);    //get Poisson distribution random
      //int xPoisson1(Real);          
      //int xPoisson2(Real);
float xUniform(float down=0.0,float up=1.0);      //get a random of (down,up) from uniform random
float xExponent(float);             //get serve time from exponent random    
float Shadow_Fading();              //get first shadow fading
float Next_Shadow_Fading(float,float,float);       //get next shadow fading
int   xGeometry(float);                    //get on/off flag from geometry random
int   xMixed_Geometry(float,float,float,float);   //mix geometry random
int   xPareto(float,float,int);		//get Pareto Distribution(float shape,float scale) with cutoff(int MTU) r.v. 	
float xLognormal(float,float,float,float);
#endif