sim_cofdm_demap.hpp

/*xxx
* \brief - SIM::cofdm_demap - demap [I,Q] QAM data carriers into QAM codes and BPSK pilot carriers into booleans  
* \author maki
*/

#ifndef COFDM_DEMAP_HPP
#define COFDM_DEMAP_HPP

#include <complex>
#include <itpp/itbase.h>
#include <itpp/itcomm.h>
#include "sim_qam_dem.hpp"
#include "sim\_sim_extension.hpp"

using namespace itpp;
using namespace std;

namespace SIM
{

class cofdm_demap
{
private:
  cvec carriers;        

  int    NFFT;                
  double PA;            

  qam_dem qamdem;       
  ivec data_carriers;   
  ivec pilots_carriers; 
  ivec zero_carriers;   

public:
  ivec y0;                

  cofdm_demap()
  {
    NFFT = 256;
    PA = 0.5;
    qamdem.set_size(4);
    y0.set_size(NFFT);
    carriers.set_length(NFFT);
    carriers = to_cvec(zeros(NFFT), zeros(NFFT));
    data_carriers = to_ivec(itpp::linspace(0, NFFT - 1, NFFT));
    pilots_carriers.set_size(0);
    zero_carriers.set_size(0);
  };
  
  ~cofdm_demap() 
  { 
  };

  void set_NFFT(int n);

  void set_qam_size(int m);

  void set_PA(double pa);

  void set_data_carriers(ivec dc_indx);
  
  void set_pilots_carriers(ivec pc_indx);
  
  void set_zero_carriers(ivec zc_indx);

  void set_carriers(cvec c);

  ivec get_data();
  
  bvec get_pilots();

  imat process(const bvec &ce, const cmat &x);

};


}
#endif //SIM_cofdm_mod