message.cpp

介绍了一种串行LDPC码的编码器和译码器的实现形式 C++环境下编写。有些地方还需完善

#include  "main.h"

int A=4827,M=2147483647;
int Q=M/A;
int R=M%A;

/* function: generate random data
   parameter: the seed of generation random data*/
int randInt(int state0)
{ int state;
  state = A*(state0%Q) - R*(state0/Q);
  if( state < 0 )
	state += M;
	return state;
}
	
/*function: generate the infomation sequence
  parameter: *message point to the information vector*/	
void  input(int *message,int state0)
{ int i;
  int state = 433;

  state = state0;
  for( i= 0; i < InfoLength; i++ )
	{
		state = randInt( state );
		message[i] = state%2;
	}
}