#include <gnuradio/fec/awgn_bp.h>
Public Member Functions | |
| awgn_bp () | |
| Default constructor. More... | |
| awgn_bp (const GF2Mat X, float sgma) | |
| A constructor for given GF2Mat and sigma. More... | |
| awgn_bp (alist _list, float sgma) | |
| A constructor for given alist and sigma. More... | |
| void | set_alist_sigma (alist _list, float sgma) |
| Initializes the class using given alist and sigma. More... | |
| std::vector< std::vector< double > > | get_Q () |
| Returns the variable Q. More... | |
| std::vector< std::vector< double > > | get_R () |
| Returns the variable R. More... | |
| GF2Mat | get_H () |
| Returns the variable H. More... | |
| void | rx_lr_calc (std::vector< float > codeword) |
| Calculates the likelihood ratios given an input vector. More... | |
| std::vector< double > | get_rx_lr () |
| Returns the variable rx_lr. More... | |
| std::vector< double > | get_lr () |
| Returns the variable lr. More... | |
| void | spa_initialize () |
| Initializes the sum product algorithm set-up. More... | |
| void | update_chks () |
| Updates the check-nodes based on messages from variable nodes. More... | |
| void | update_vars () |
| Updates the variable-nodes based on messages from check nodes. More... | |
| std::vector< uint8_t > | get_estimate () |
| Returns the current estimate. More... | |
| void | compute_init_estimate (std::vector< float > rx_word) |
| Computes initial estimate based on the vector rx_word. More... | |
| void | decision () |
| Computes the estimate based on current likelihood-ratios lr. More... | |
| std::vector< uint8_t > | get_syndrome () |
| Returns the syndrome for the current estimate. More... | |
| std::vector< uint8_t > | get_syndrome (const std::vector< uint8_t > codeword) |
| Returns the syndrome for the input codeword. More... | |
| bool | is_codeword () |
| Checks if the current estimate is a codeword. More... | |
| bool | is_codeword (const std::vector< uint8_t > codeword) |
| Checks if the input is a codeword. More... | |
| void | set_K (int k) |
| Sets the variable K. More... | |
| int | get_K () |
| Returns the variable K. More... | |
| void | set_max_iterations (int k) |
| Sets the variable max_iterations. More... | |
| int | get_max_iterations () |
| Returns the variable max_iterations. More... | |
| std::vector< uint8_t > | decode (std::vector< float > rx_word, int *niterations) |
| Decodes the given vector rx_word by message passing. More... | |
|
inline |
Default constructor.
| awgn_bp::awgn_bp | ( | alist | _list, |
| float | sgma | ||
| ) |
A constructor for given alist and sigma.
| void awgn_bp::compute_init_estimate | ( | std::vector< float > | rx_word | ) |
Computes initial estimate based on the vector rx_word.
| void awgn_bp::decision | ( | ) |
Computes the estimate based on current likelihood-ratios lr.
| std::vector<uint8_t> awgn_bp::decode | ( | std::vector< float > | rx_word, |
| int * | niterations | ||
| ) |
Decodes the given vector rx_word by message passing.
| rx_word | The received samples for decoding. |
| niterations | The number of message passing iterations done to decode this codeword. |
| std::vector<uint8_t> awgn_bp::get_estimate | ( | ) |
Returns the current estimate.
| GF2Mat awgn_bp::get_H | ( | ) |
Returns the variable H.
| int awgn_bp::get_K | ( | ) |
Returns the variable K.
| std::vector<double> awgn_bp::get_lr | ( | ) |
Returns the variable lr.
| int awgn_bp::get_max_iterations | ( | ) |
Returns the variable max_iterations.
| std::vector<std::vector<double> > awgn_bp::get_Q | ( | ) |
Returns the variable Q.
| std::vector<std::vector<double> > awgn_bp::get_R | ( | ) |
Returns the variable R.
| std::vector<double> awgn_bp::get_rx_lr | ( | ) |
Returns the variable rx_lr.
| std::vector<uint8_t> awgn_bp::get_syndrome | ( | ) |
Returns the syndrome for the current estimate.
| std::vector<uint8_t> awgn_bp::get_syndrome | ( | const std::vector< uint8_t > | codeword | ) |
Returns the syndrome for the input codeword.
| bool awgn_bp::is_codeword | ( | ) |
Checks if the current estimate is a codeword.
| bool awgn_bp::is_codeword | ( | const std::vector< uint8_t > | codeword | ) |
Checks if the input is a codeword.
| void awgn_bp::rx_lr_calc | ( | std::vector< float > | codeword | ) |
Calculates the likelihood ratios given an input vector.
| void awgn_bp::set_alist_sigma | ( | alist | _list, |
| float | sgma | ||
| ) |
Initializes the class using given alist and sigma.
| void awgn_bp::set_K | ( | int | k | ) |
Sets the variable K.
| void awgn_bp::set_max_iterations | ( | int | k | ) |
Sets the variable max_iterations.
| void awgn_bp::spa_initialize | ( | ) |
Initializes the sum product algorithm set-up.
| void awgn_bp::update_chks | ( | ) |
Updates the check-nodes based on messages from variable nodes.
| void awgn_bp::update_vars | ( | ) |
Updates the variable-nodes based on messages from check nodes.