bch.h

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#ifndef BCH_H
#define BCH_H

#include <itpp/comm/galois.h>
#include <itpp/comm/channel_code.h>


namespace itpp
{

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

class 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 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

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