bch.h

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#ifndef BCH_H
#define BCH_H
 
#include <itpp/comm/galois.h>
#include <itpp/comm/channel_code.h>
#include <itpp/itexports.h>
 
namespace itpp
{

 
//---------------------- BCH --------------------------------------

class ITPP_EXPORT BCH : public Channel_Code
{
public:
  BCH(int in_n, int in_k, int in_t, const ivec &genpolynom, bool sys = false);

  BCH(int in_n, int in_t, bool sys = false);

  virtual ~BCH() { }

  virtual void encode(const bvec &uncoded_bits, bvec &coded_bits);
  virtual bvec encode(const bvec &uncoded_bits);

  virtual bool decode(const bvec &coded_bits, bvec &decoded_message, bvec &cw_isvalid);

  virtual void decode(const bvec &coded_bits, bvec &decoded_bits);

  virtual bvec decode(const bvec &coded_bits);
 
  // Soft-decision decoding is not implemented
  virtual void decode(const vec &received_signal, bvec &output);
  virtual bvec decode(const vec &received_signal);

  virtual double get_rate() const {
    return static_cast<double>(k) / n;
  }

  virtual int get_k() const {
    return k;
  }

  BCH & operator= (const BCH &) {
    return *this;
  }
 
private:
  int n, k, t;
  GFX g;
  const bool systematic;
};
 
} // namespace itpp
 
#endif // #ifndef BCH_H