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Diffstat (limited to 'gr-digital/include/digital_ofdm_mapper_bcv.h')
| -rw-r--r-- | gr-digital/include/digital_ofdm_mapper_bcv.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/gr-digital/include/digital_ofdm_mapper_bcv.h b/gr-digital/include/digital_ofdm_mapper_bcv.h new file mode 100644 index 000000000..daed1eab2 --- /dev/null +++ b/gr-digital/include/digital_ofdm_mapper_bcv.h @@ -0,0 +1,88 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2007,2011 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_DIGITAL_OFDM_MAPPER_BCV_H +#define INCLUDED_DIGITAL_OFDM_MAPPER_BCV_H + +#include <digital_api.h> +#include <gr_sync_block.h> +#include <gr_message.h> +#include <gr_msg_queue.h> + +class digital_ofdm_mapper_bcv; +typedef boost::shared_ptr<digital_ofdm_mapper_bcv> digital_ofdm_mapper_bcv_sptr; + +DIGITAL_API digital_ofdm_mapper_bcv_sptr +digital_make_ofdm_mapper_bcv (const std::vector<gr_complex> &constellation, unsigned msgq_limit, + unsigned occupied_carriers, unsigned int fft_length); + +/*! + * \brief take a stream of bytes in and map to a vector of complex + * constellation points suitable for IFFT input to be used in an ofdm + * modulator. Abstract class must be subclassed with specific mapping. + * \ingroup modulation_blk + * \ingroup ofdm_blk + */ + +class DIGITAL_API digital_ofdm_mapper_bcv : public gr_sync_block +{ + friend DIGITAL_API digital_ofdm_mapper_bcv_sptr + digital_make_ofdm_mapper_bcv (const std::vector<gr_complex> &constellation, unsigned msgq_limit, + unsigned occupied_carriers, unsigned int fft_length); +protected: + digital_ofdm_mapper_bcv (const std::vector<gr_complex> &constellation, unsigned msgq_limit, + unsigned occupied_carriers, unsigned int fft_length); + + private: + std::vector<gr_complex> d_constellation; + gr_msg_queue_sptr d_msgq; + gr_message_sptr d_msg; + unsigned d_msg_offset; + bool d_eof; + + unsigned int d_occupied_carriers; + unsigned int d_fft_length; + unsigned int d_bit_offset; + int d_pending_flag; + + unsigned long d_nbits; + unsigned char d_msgbytes; + + unsigned char d_resid; + unsigned int d_nresid; + + std::vector<int> d_subcarrier_map; + + int randsym(); + + public: + ~digital_ofdm_mapper_bcv(void); + + gr_msg_queue_sptr msgq() const { return d_msgq; } + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + +}; + +#endif |