simthlib::Puncturing Class Reference

#include <puncturing.h>

List of all members.

Public Member Functions
	Puncturing (int codeRateNumerator, int codeRateDenumerator, int memoryLength, int codeOutputBits, int codeInputBits=1)
	Puncturing (const std::string &puncturePattern)
void	puncture (const simth::BitSeq &inputSequence, simth::BitSeq *outputSequence) const
void	puncture (const simth::LlrSeq &inputSequence, simth::LlrSeq *outputSequence) const
void	depuncture (const simth::LlrSeq &inputSequence, simth::LlrSeq *outputSequence) const
int	getPuncturedLength (int len) const
int	getDepuncturedLength (int len) const
void	setDepuncturedLength (int outLen)
Protected Member Functions
int	getDepuncturedLength () const
void	invariant () const

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Detailed Description

The class supports puncturing of a bit sequence (simth::BitSeq) and of an LLR sequence (simth::LlrSeq).

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Constructor & Destructor Documentation

simthlib::Puncturing::Puncturing (  int  codeRateNumerator, int  codeRateDenumerator, int  memoryLength, int  codeOutputBits, int  codeInputBits = 1 )

Class constructor. Parameters: codeRateNumerator  numerator of the punctured code rate codeRateDenumerator  denumerator of the punctured code rate memoryLength  memory length of the coder codeOutputBits  number of output bits of the coder (without puncturing) codeInputBits  number of input bits of the coder

simthlib::Puncturing::Puncturing (  const std::string &  puncturePattern  )

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Member Function Documentation

void simthlib::Puncturing::depuncture (  const simth::LlrSeq &  inputSequence, simth::LlrSeq *  outputSequence )  const

int simthlib::Puncturing::getDepuncturedLength (  int  len  )  const

Returns the depunctured length of punctured length with the length len. Since the result is ambigous, the function setOutputLength had to be called before. Otherwise this function throws an error. If the outputlength set by setDepuncturedLength and the given unpunctured length does not fit together, the function also throws an error.

int simthlib::Puncturing::getDepuncturedLength (   )  const [inline, protected]

Returns the length of the depunctured output length set by the last call of the function setOutputLength.

int simthlib::Puncturing::getPuncturedLength (  int  len  )  const

Returns the length of the punctured sequence with the unpunctured length len.

void simthlib::Puncturing::invariant (   )  const [inline, protected]

void simthlib::Puncturing::puncture (  const simth::LlrSeq &  inputSequence, simth::LlrSeq *  outputSequence )  const

void simthlib::Puncturing::puncture (  const simth::BitSeq &  inputSequence, simth::BitSeq *  outputSequence )  const

Punctures a bit sequence.

void simthlib::Puncturing::setDepuncturedLength (  int  outLen  )  [inline]

Sets the output length of the next depunctured sequence (i.e. the input length of the last punctured bit sequence). This information is neccessary because bit sequences with different lengths could be punctured to bit sequences with equal lengths.

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