3 * Copyright 2006,2007 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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8 * it under the terms of the GNU General Public License as published by
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
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19 * the Free Software Foundation, Inc., 51 Franklin Street,
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23 #ifndef INCLUDED_GR_OFDM_MAPPER_BCV_H
24 #define INCLUDED_GR_OFDM_MAPPER_BCV_H
26 #include <gr_sync_block.h>
27 #include <gr_message.h>
28 #include <gr_msg_queue.h>
30 class gr_ofdm_mapper_bcv;
31 typedef boost::shared_ptr<gr_ofdm_mapper_bcv> gr_ofdm_mapper_bcv_sptr;
33 gr_ofdm_mapper_bcv_sptr
34 gr_make_ofdm_mapper_bcv (const std::vector<gr_complex> &constellation, unsigned msgq_limit,
35 unsigned occupied_carriers, unsigned int fft_length);
38 * \brief take a stream of bytes in and map to a vector of complex
39 * constellation points suitable for IFFT input to be used in an ofdm
40 * modulator. Abstract class must be subclassed with specific mapping.
41 * \ingroup modulation_blk
45 class gr_ofdm_mapper_bcv : public gr_sync_block
47 friend gr_ofdm_mapper_bcv_sptr
48 gr_make_ofdm_mapper_bcv (const std::vector<gr_complex> &constellation, unsigned msgq_limit,
49 unsigned occupied_carriers, unsigned int fft_length);
51 gr_ofdm_mapper_bcv (const std::vector<gr_complex> &constellation, unsigned msgq_limit,
52 unsigned occupied_carriers, unsigned int fft_length);
55 std::vector<gr_complex> d_constellation;
56 gr_msg_queue_sptr d_msgq;
57 gr_message_sptr d_msg;
58 unsigned d_msg_offset;
61 unsigned int d_occupied_carriers;
62 unsigned int d_fft_length;
63 unsigned int d_bit_offset;
66 unsigned long d_nbits;
67 unsigned char d_msgbytes;
69 unsigned char d_resid;
70 unsigned int d_nresid;
72 std::vector<int> d_subcarrier_map;
77 ~gr_ofdm_mapper_bcv(void);
79 gr_msg_queue_sptr msgq() const { return d_msgq; }
81 int work(int noutput_items,
82 gr_vector_const_void_star &input_items,
83 gr_vector_void_star &output_items);