inet::physicallayer::Ieee80211HtPreambleMode Class Reference

#include <Ieee80211HtMode.h>

Inheritance diagram for inet::physicallayer::Ieee80211HtPreambleMode:

Public Types
enum	HighTroughputPreambleFormat { HT_PREAMBLE_MIXED, HT_PREAMBLE_GREENFIELD }
Public Types inherited from inet::IPrintableObject
enum	PrintLevel {   PRINT_LEVEL_TRACE, PRINT_LEVEL_DEBUG, PRINT_LEVEL_DETAIL, PRINT_LEVEL_INFO,   PRINT_LEVEL_COMPLETE = INT_MIN }
enum	PrintFlag { PRINT_FLAG_FORMATTED = (1 << 0), PRINT_FLAG_MULTILINE = (1 << 1) }

Public Member Functions
	Ieee80211HtPreambleMode (const Ieee80211HtSignalMode *highThroughputSignalMode, const Ieee80211OfdmSignalMode *legacySignalMode, HighTroughputPreambleFormat preambleFormat, unsigned int numberOfSpatialStream)
virtual	~Ieee80211HtPreambleMode ()
HighTroughputPreambleFormat	getPreambleFormat () const
virtual const Ieee80211HtSignalMode *	getSignalMode () const
virtual const Ieee80211OfdmSignalMode *	getLegacySignalMode () const
virtual const Ieee80211HtSignalMode *	getHighThroughputSignalMode () const
virtual const simtime_t	getDoubleGIDuration () const
virtual const simtime_t	getLSIGDuration () const
virtual const simtime_t	getNonHTShortTrainingSequenceDuration () const
virtual const simtime_t	getHTGreenfieldShortTrainingFieldDuration () const
virtual const simtime_t	getNonHTLongTrainingFieldDuration () const
virtual const simtime_t	getHTShortTrainingFieldDuration () const
virtual const simtime_t	getFirstHTLongTrainingFieldDuration () const
virtual const simtime_t	getSecondAndSubsequentHTLongTrainingFielDuration () const
virtual unsigned int	getNumberOfHtLongTrainings () const
virtual const simtime_t	getDuration () const override
virtual Ptr< Ieee80211PhyPreamble >	createPreamble () const override
Public Member Functions inherited from inet::IPrintableObject
virtual	~IPrintableObject ()
virtual std::ostream &	printToStream (std::ostream &stream, int level, int evFlags=0) const
	Prints this object to the provided output stream. More...
virtual std::string	printToString () const
virtual std::string	printToString (int level, int evFlags=0) const
virtual std::string	getInfoStringRepresentation (int evFlags=0) const
virtual std::string	getDetailStringRepresentation (int evFlags=0) const
virtual std::string	getDebugStringRepresentation (int evFlags=0) const
virtual std::string	getTraceStringRepresentation (int evFlags=0) const
virtual std::string	getCompleteStringRepresentation (int evFlags=0) const
Public Member Functions inherited from inet::physicallayer::Ieee80211HtTimingRelatedParametersBase
const simtime_t	getDFTPeriod () const
const simtime_t	getGIDuration () const
const simtime_t	getShortGIDuration () const
const simtime_t	getSymbolInterval () const
const simtime_t	getShortGISymbolInterval () const

Protected Member Functions
virtual unsigned int	computeNumberOfSpaceTimeStreams (unsigned int numberOfSpatialStreams) const
virtual unsigned int	computeNumberOfHTLongTrainings (unsigned int numberOfSpaceTimeStreams) const

Protected Attributes
const Ieee80211HtSignalMode *	highThroughputSignalMode
const Ieee80211OfdmSignalMode *	legacySignalMode
const HighTroughputPreambleFormat	preambleFormat
const unsigned int	numberOfHTLongTrainings

Member Enumeration Documentation

HighTroughputPreambleFormat

enum inet::physicallayer::Ieee80211HtPreambleMode::HighTroughputPreambleFormat

Enumerator
HT_PREAMBLE_MIXED
HT_PREAMBLE_GREENFIELD

                                     {
        HT_PREAMBLE_MIXED, // can be received by non-HT STAs compliant with Clause 18 or Clause 19
        HT_PREAMBLE_GREENFIELD // all of the non-HT fields are omitted
    };

Constructor & Destructor Documentation

Ieee80211HtPreambleMode()

inet::physicallayer::Ieee80211HtPreambleMode::Ieee80211HtPreambleMode	(	const Ieee80211HtSignalMode *	highThroughputSignalMode,
		const Ieee80211OfdmSignalMode *	legacySignalMode,
		HighTroughputPreambleFormat	preambleFormat,
		unsigned int	numberOfSpatialStream
	)

                                                                                                                                                                                                                                       :
    highThroughputSignalMode(highThroughputSignalMode),
    legacySignalMode(legacySignalMode),
    preambleFormat(preambleFormat),
    numberOfHTLongTrainings(computeNumberOfHTLongTrainings(computeNumberOfSpaceTimeStreams(numberOfSpatialStream)))
{
}

~Ieee80211HtPreambleMode()

virtual inet::physicallayer::Ieee80211HtPreambleMode::~Ieee80211HtPreambleMode ( )

inlinevirtual

{ delete highThroughputSignalMode; }

Member Function Documentation

computeNumberOfHTLongTrainings()

unsigned int inet::physicallayer::Ieee80211HtPreambleMode::computeNumberOfHTLongTrainings ( unsigned int  numberOfSpaceTimeStreams ) const

protectedvirtual

{
    // If the transmitter is providing training for exactly the space-time
    // streams (spatial mapper inputs) used for the transmission of the PSDU,
    // the number of training symbols, N_LTF, is equal to the number of space-time
    // streams, N STS, except that for three space-time streams, four training symbols
    // are required.
    return numberOfSpaceTimeStreams == 3 ? 4 : numberOfSpaceTimeStreams;
}

computeNumberOfSpaceTimeStreams()

unsigned int inet::physicallayer::Ieee80211HtPreambleMode::computeNumberOfSpaceTimeStreams ( unsigned int  numberOfSpatialStreams ) const

protectedvirtual

{
    // Table 20-12—Determining the number of space-time streams
    return numberOfSpatialStreams + highThroughputSignalMode->getSTBC();
}

createPreamble()

virtual Ptr<Ieee80211PhyPreamble> inet::physicallayer::Ieee80211HtPreambleMode::createPreamble ( ) const

inlineoverridevirtual

Implements inet::physicallayer::IIeee80211PreambleMode.

{ return makeShared<Ieee80211HtPhyPreamble>(); }

getDoubleGIDuration()

virtual const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getDoubleGIDuration ( ) const

inlinevirtual

{ return 2 * getGIDuration(); } // GI2

getDuration()

const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getDuration ( ) const

overridevirtual

Implements inet::physicallayer::IIeee80211PreambleMode.

{
    // 20.3.7 Mathematical description of signals
    simtime_t sumOfHTLTFs = getFirstHTLongTrainingFieldDuration() + getSecondAndSubsequentHTLongTrainingFielDuration() * (numberOfHTLongTrainings - 1);
    if (preambleFormat == HT_PREAMBLE_MIXED)
        // L-STF -> L-LTF -> L-SIG -> HT-SIG -> HT-STF -> HT-LTF1 -> HT-LTF2 -> ... -> HT_LTFn
        return getNonHTShortTrainingSequenceDuration() + getNonHTLongTrainingFieldDuration() + legacySignalMode->getDuration() + highThroughputSignalMode->getDuration() + getHTShortTrainingFieldDuration() + sumOfHTLTFs;
    else if (preambleFormat == HT_PREAMBLE_GREENFIELD)
        // HT-GF-STF -> HT-LTF1 -> HT-SIG -> HT-LTF2 -> ... -> HT-LTFn
        return getHTGreenfieldShortTrainingFieldDuration() + highThroughputSignalMode->getDuration() + sumOfHTLTFs;
    else
        throw cRuntimeError("Unknown preamble format");
}

Referenced by inet::physicallayer::Ieee80211HtMode::getDuration().

getFirstHTLongTrainingFieldDuration()

const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getFirstHTLongTrainingFieldDuration ( ) const

virtual

{
    if (preambleFormat == HT_PREAMBLE_MIXED)
        return simtime_t(4E-6);
    else if (preambleFormat == HT_PREAMBLE_GREENFIELD)
        return simtime_t(8E-6);
    else
        throw cRuntimeError("Unknown preamble format");
}

Referenced by getDuration().

getHighThroughputSignalMode()

virtual const Ieee80211HtSignalMode* inet::physicallayer::Ieee80211HtPreambleMode::getHighThroughputSignalMode ( ) const

inlinevirtual

{ return highThroughputSignalMode; }

getHTGreenfieldShortTrainingFieldDuration()

virtual const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getHTGreenfieldShortTrainingFieldDuration ( ) const

inlinevirtual

{ return 10 * getDFTPeriod() / 4; } // HT-GF-STF

Referenced by getDuration().

getHTShortTrainingFieldDuration()

virtual const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getHTShortTrainingFieldDuration ( ) const

inlinevirtual

{ return 4E-6; } // HT-STF

Referenced by getDuration().

getLegacySignalMode()

virtual const Ieee80211OfdmSignalMode* inet::physicallayer::Ieee80211HtPreambleMode::getLegacySignalMode ( ) const

inlinevirtual

{ return legacySignalMode; }

Referenced by inet::physicallayer::Ieee80211HtMode::getLegacySignalMode().

getLSIGDuration()

virtual const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getLSIGDuration ( ) const

inlinevirtual

{ return getSymbolInterval(); } // L-SIG

getNonHTLongTrainingFieldDuration()

virtual const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getNonHTLongTrainingFieldDuration ( ) const

inlinevirtual

{ return 2 * getDFTPeriod() + getDoubleGIDuration(); } // L-LTF

Referenced by getDuration().

getNonHTShortTrainingSequenceDuration()

virtual const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getNonHTShortTrainingSequenceDuration ( ) const

inlinevirtual

{ return 10 * getDFTPeriod() / 4; } // L-STF

Referenced by getDuration().

getNumberOfHtLongTrainings()

virtual unsigned int inet::physicallayer::Ieee80211HtPreambleMode::getNumberOfHtLongTrainings ( ) const

inlinevirtual

{ return numberOfHTLongTrainings; }

getPreambleFormat()

HighTroughputPreambleFormat inet::physicallayer::Ieee80211HtPreambleMode::getPreambleFormat ( ) const

inline

{ return preambleFormat; }

getSecondAndSubsequentHTLongTrainingFielDuration()

virtual const simtime_t inet::physicallayer::Ieee80211HtPreambleMode::getSecondAndSubsequentHTLongTrainingFielDuration ( ) const

inlinevirtual

{ return 4E-6; } // HT-LTFs, s = 2,3,..,n

Referenced by getDuration().

getSignalMode()

virtual const Ieee80211HtSignalMode* inet::physicallayer::Ieee80211HtPreambleMode::getSignalMode ( ) const

inlinevirtual

{ return highThroughputSignalMode; }

Referenced by inet::physicallayer::Ieee80211HtMode::getHeaderMode().

Member Data Documentation

highThroughputSignalMode

const Ieee80211HtSignalMode* inet::physicallayer::Ieee80211HtPreambleMode::highThroughputSignalMode

protected

Referenced by computeNumberOfSpaceTimeStreams(), and getDuration().

legacySignalMode

const Ieee80211OfdmSignalMode* inet::physicallayer::Ieee80211HtPreambleMode::legacySignalMode

protected

Referenced by getDuration().

numberOfHTLongTrainings

const unsigned int inet::physicallayer::Ieee80211HtPreambleMode::numberOfHTLongTrainings

protected

Referenced by getDuration().

preambleFormat

const HighTroughputPreambleFormat inet::physicallayer::Ieee80211HtPreambleMode::preambleFormat

protected

Referenced by getDuration(), and getFirstHTLongTrainingFieldDuration().

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The documentation for this class was generated from the following files:

• Ieee80211HtMode.h
• Ieee80211HtMode.cc