Class holds common methods and attributes for different decoder implementations.
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float | llr_odd (const float la, const float lb) const |
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float | llr_even (const float la, const float lb, const unsigned char f) const |
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unsigned char | llr_bit_decision (const float llr) const |
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bool | is_frozen_bit (const int u_num) const |
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unsigned char | next_frozen_bit () |
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void | initialize_decoder (unsigned char *u, float *llrs, const float *input) |
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void | butterfly (float *llrs, unsigned char *u, const int stage, const int u_num, const int row) |
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void | butterfly_volk (float *llrs, unsigned char *u, const int stage, const int u_num, const int row) |
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void | butterfly_generic (float *llrs, unsigned char *u, const int stage, const int u_num, const int row) |
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void | even_u_values (unsigned char *u_even, const unsigned char *u, const int u_num) |
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void | odd_xor_even_values (unsigned char *u_xor, const unsigned char *u, const int u_num) |
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void | extract_info_bits (unsigned char *output, const unsigned char *input) const |
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void | print_pretty_llr_vector (const float *llr_vec) const |
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int | block_size () const |
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int | block_power () const |
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int | num_info_bits () const |
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long | bit_reverse (long value, int active_bits) const |
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void | print_packed_bit_array (const unsigned char *printed_array, const int num_bytes) const |
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void | print_unpacked_bit_array (const unsigned char *bits, const unsigned int num_bytes) const |
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void | setup_info_bit_positions_reversed () |
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void | setup_volk_vectors () |
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void | volk_encode (unsigned char *out_buf, const unsigned char *in_buf) |
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void | volk_encode_block (unsigned char *out_buf, unsigned char *in_buf) |
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Class holds common methods and attributes for different decoder implementations.
int gr::fec::code::polar_decoder_common::get_input_size |
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inlineoverridevirtual |
Returns the input size in items that the decoder object uses to decode a full frame. Often, this number is the number of bits per frame if the input format is unpacked. If the block expects packed bytes, then this value should be the number of bytes (number of bits / 8) per input frame.
The child class MUST implement this function.
Implements gr::fec::generic_decoder.
References gr::fec::code::polar_common::block_size().
Referenced by rate().
int gr::fec::code::polar_decoder_common::get_output_size |
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inlineoverridevirtual |
Returns the output size in items that the decoder object produces after decoding a full frame. Often, this number is the number of bits in the outputted frame if the input format is unpacked. If the block produces packed bytes, then this value should be the number of bytes (number of bits / 8) per frame produced. This value is generally something like get_input_size()/R for a 1/R rate code.
The child class MUST implement this function.
Implements gr::fec::generic_decoder.
References gr::fec::code::polar_common::num_info_bits().
Referenced by rate().
double gr::fec::code::polar_decoder_common::rate |
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inlineoverridevirtual |
Returns the rate of the code. For every r input bits, there is 1 output bit, so the rate is 1/r. Used for setting things like the encoder block's relative rate.
This function MUST be reimplemented by the child class.
Implements gr::fec::generic_decoder.
References get_input_size(), and get_output_size().