simthlib::PunctConvSoftoutDecoding Class Reference

#include <softoutdecoding.h>

Inheritance diagram for simthlib::PunctConvSoftoutDecoding:

[legend]List of all members.

Public Member Functions
	PunctConvSoftoutDecoding (int codeRateNumerator, int codeRateDenumerator, int mem, int inbits, int outbits, trellissoftout::softoutalgorithmmode soMode)
	PunctConvSoftoutDecoding (int codeRateNumerator, int codeRateDenumerator, int inbitsPerStep, const simth::checkedVector< int > &polynome, int recursivePolynomial, bool systematic, trellissoftout::softoutalgorithmmode soMode)
	PunctConvSoftoutDecoding (const std::string &puncturingPattern, int inbitsPerStep, const simth::checkedVector< int > &polynome, int recursivePolynomial, bool systematic, trellissoftout::softoutalgorithmmode soMode)
	~PunctConvSoftoutDecoding ()
virtual void	softout4InputBits (simth::LlvSeq &metr, simth::LlrSeq *softout, simth::LlrSeq *apri=NULL)
virtual void	softout4OutputBits (const simth::LlvSeq &metr, simth::LlrSeq *softout, simth::LlrSeq *apri=NULL)
virtual void	softout4InputBits (simth::LlrSeq &metr, simth::LlrSeq *softout, simth::LlrSeq *apri=NULL)
virtual void	softout4OutputBits (const simth::LlrSeq &metr, simth::LlrSeq *softout, simth::LlrSeq *apri=NULL)
virtual void	normalDecoding (const simth::LlrSeq &llr, simth::BitSeq &bsout)
virtual int	getDataLength (int codedLength) const
virtual int	getCodeLength (int rawLength) const
virtual int	codedBitsPerStep () const
void	setPuncturing (const std::string &newPuncturePattern)

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Detailed Description

This class simulates a convolutional soft-out decoder. Unlike with the base class SoftoutDecoding this class is a decoder, because it is derived from a ConvSoftoutDecoding (and from a SoftoutDecoding too.) A particular decoder is determined by the memory length, the number of input bits and the number of output bits. These parameters are passed as arguments of the constructor.

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Constructor & Destructor Documentation

simthlib::PunctConvSoftoutDecoding::PunctConvSoftoutDecoding (  int  codeRateNumerator, int  codeRateDenumerator, int  mem, int  inbits, int  outbits, trellissoftout::softoutalgorithmmode  soMode )

Class constructor. Parameters: codeRateNumerator  DOCUMENT ME codeRateDenumerator  DOCUMENT ME mem  memory length of the coder inbits  number of input bits per step outbits  number of output bits per step soMode  DOCUMENT ME

simthlib::PunctConvSoftoutDecoding::PunctConvSoftoutDecoding (  int  codeRateNumerator, int  codeRateDenumerator, int  inbitsPerStep, const simth::checkedVector< int > &  polynome, int  recursivePolynomial, bool  systematic, trellissoftout::softoutalgorithmmode  soMode )

simthlib::PunctConvSoftoutDecoding::PunctConvSoftoutDecoding (  const std::string &  puncturingPattern, int  inbitsPerStep, const simth::checkedVector< int > &  polynome, int  recursivePolynomial, bool  systematic, trellissoftout::softoutalgorithmmode  soMode )

simthlib::PunctConvSoftoutDecoding::~PunctConvSoftoutDecoding (   )

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Member Function Documentation

virtual int simthlib::PunctConvSoftoutDecoding::codedBitsPerStep (   )  const [inline, virtual]

Returns the coded output bits per step of the associated encoder, i.e. the number of input bits per step of this decoder. Reimplemented from simthlib::TrellisSoftoutDecoding.

virtual int simthlib::PunctConvSoftoutDecoding::getCodeLength (  int  rawLength  )  const [virtual]

Returns the length of the coded bit sequence which the coder generates from a data sequence of the given length. Reimplemented from simthlib::TrellisSoftoutDecoding.

virtual int simthlib::PunctConvSoftoutDecoding::getDataLength (  int  codedLength  )  const [virtual]

Returns the length of a data bit sequence which can be encoded into a coded bit sequence of the given length. Reimplemented from simthlib::TrellisSoftoutDecoding.

virtual void simthlib::PunctConvSoftoutDecoding::normalDecoding (  const simth::LlrSeq &  llr, simth::BitSeq &  bsout )  [virtual]

Performs a maximum likelihood sequence estimation of the data sequence based on the log-likelihood ratios of the received modulation symbols (soft decision decoding without soft {out}put) This can be usefull in the last step of an iterative decoding procedure when no soft-out information is needed. Reimplemented from simthlib::TrellisSoftoutDecoding.

void simthlib::PunctConvSoftoutDecoding::setPuncturing (  const std::string &  newPuncturePattern  )

virtual void simthlib::PunctConvSoftoutDecoding::softout4InputBits (  simth::LlrSeq &  metr, simth::LlrSeq *  softout, simth::LlrSeq *  apri = NULL )  [virtual]

Estimates soft output for the given coded sequence of llrValues. Reimplemented from simthlib::TrellisSoftoutDecoding.

virtual void simthlib::PunctConvSoftoutDecoding::softout4InputBits (  simth::LlvSeq &  metr, simth::LlrSeq *  softout, simth::LlrSeq *  apri = NULL )  [virtual]

Estimates soft output for the given coded sequence of llvValues. Reimplemented from simthlib::TrellisSoftoutDecoding.

virtual void simthlib::PunctConvSoftoutDecoding::softout4OutputBits (  const simth::LlrSeq &  metr, simth::LlrSeq *  softout, simth::LlrSeq *  apri = NULL )  [virtual]

Estimates soft output for the output sequence of the decoder (resp.\ the data sequence) due to the given input sequence of llrValues. Reimplemented from simthlib::TrellisSoftoutDecoding.

virtual void simthlib::PunctConvSoftoutDecoding::softout4OutputBits (  const simth::LlvSeq &  metr, simth::LlrSeq *  softout, simth::LlrSeq *  apri = NULL )  [virtual]

Estimates soft output for the output sequence of the decoder (resp.\ the data sequence) due to the given input sequence of llvValues. Reimplemented from simthlib::TrellisSoftoutDecoding.

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