IT++ 4.3.1
bch.h
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1
28
29#ifndef BCH_H
30#define BCH_H
31
32#include <itpp/comm/galois.h>
34#include <itpp/itexports.h>
35
36namespace itpp
37{
38
42
43//---------------------- BCH --------------------------------------
44
59class ITPP_EXPORT BCH : public Channel_Code
60{
61public:
69 BCH(int in_n, int in_k, int in_t, const ivec &genpolynom, bool sys = false);
70
82 BCH(int in_n, int in_t, bool sys = false);
83
85 virtual ~BCH() { }
86
88 virtual void encode(const bvec &uncoded_bits, bvec &coded_bits);
90 virtual bvec encode(const bvec &uncoded_bits);
91
103 virtual bool decode(const bvec &coded_bits, bvec &decoded_message, bvec &cw_isvalid);
104
106 virtual void decode(const bvec &coded_bits, bvec &decoded_bits);
107
109 virtual bvec decode(const bvec &coded_bits);
110
111 // Soft-decision decoding is not implemented
112 virtual void decode(const vec &received_signal, bvec &output);
113 virtual bvec decode(const vec &received_signal);
114
116 virtual double get_rate() const {
117 return static_cast<double>(k) / n;
118 }
119
121 virtual int get_k() const {
122 return k;
123 }
124
126 BCH & operator= (const BCH &) {
127 return *this;
128 }
129
130private:
131 int n, k, t;
132 GFX g;
133 const bool systematic;
134};
135
136} // namespace itpp
137
138#endif // #ifndef BCH_H
Channel Code class virtual interface.
virtual int get_k() const
Get cardinality of code k.
Definition bch.h:121
virtual double get_rate() const
Get the code rate.
Definition bch.h:116
BCH(int in_n, int in_k, int in_t, const ivec &genpolynom, bool sys=false)
Initialize a (n,k)-code that can correct t errors.
Definition bch.cpp:39
virtual ~BCH()
Destructor.
Definition bch.h:85
Channel_Code()
Default constructor.
Polynomials over GF(q)[x], where q=2^m, m=1,...,16.
Definition galois.h:176
Definitions of Galois Field algebra classes and functions.
itpp namespace
Definition itmex.h:37