codeword_soft_demapper_fb_impl.h

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/* -*- c++ -*- */
/*
 * Copyright 2015 Felix Wunsch, Communications Engineering Lab (CEL) / Karlsruhe Institute
 * of Technology (KIT) <wunsch.felix@googlemail.com>.
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3, or (at your option)
 * any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */
 
#ifndef INCLUDED_IEEE802_15_4_CODEWORD_SOFT_DEMAPPER_FB_IMPL_H
#define INCLUDED_IEEE802_15_4_CODEWORD_SOFT_DEMAPPER_FB_IMPL_H
 
#include <ieee802_15_4/codeword_soft_demapper_fb.h>
 
namespace gr {
namespace ieee802_15_4 {
 
class codeword_soft_demapper_fb_impl : public codeword_soft_demapper_fb
{
private:
    int d_bits_per_cw;
    std::vector<std::vector<float>> d_codewords;
    int d_len_cw;
    float d_coderate;
    std::vector<float> calc_weights(const float* in);
    std::vector<unsigned char> dec2bin(int dec, int nbit);
 
public:
    codeword_soft_demapper_fb_impl(int bits_per_cw,
                                   std::vector<std::vector<float>> codewords);
    ~codeword_soft_demapper_fb_impl();
 
    void forecast(int noutput_items, gr_vector_int& ninput_items_required);
 
    int general_work(int noutput_items,
                     gr_vector_int& ninput_items,
                     gr_vector_const_void_star& input_items,
                     gr_vector_void_star& output_items);
};
 
} // namespace ieee802_15_4
} // namespace gr
 
#endif /* INCLUDED_IEEE802_15_4_CODEWORD_SOFT_DEMAPPER_FB_IMPL_H */