OFDM PPDU (11a) More...

#include "ofdm-ppdu.h"

Inheritance diagram for ns3::OfdmPpdu:

Collaboration diagram for ns3::OfdmPpdu:

Classes
class	LSigHeader
	OFDM and ERP OFDM L-SIG PHY header. More...

Public Member Functions
	OfdmPpdu (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, uint64_t uid, bool instantiateLSig=true)
	Create an OFDM PPDU.

Ptr< WifiPpdu >	Copy () const override
	Copy this instance.

Time	GetTxDuration () const override
	Get the total transmission duration of the PPDU.

Public Member Functions inherited from ns3::WifiPpdu
	WifiPpdu (const WifiConstPsduMap &psdus, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, uint64_t uid)
	Create a PPDU storing a map of PSDUs.

	WifiPpdu (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector, const WifiPhyOperatingChannel &channel, uint64_t uid=UINT64_MAX)
	Create a PPDU storing a PSDU.

virtual	~WifiPpdu ()
	Destructor for WifiPpdu.

bool	DoesOverlapChannel (MHz_u minFreq, MHz_u maxFreq) const
	Check whether the given PPDU overlaps a given channel.

WifiModulationClass	GetModulation () const
	Get the modulation used for the PPDU.

WifiPreamble	GetPreamble () const
	Get the preamble of the PPDU.

Ptr< const WifiPsdu >	GetPsdu () const
	Get the payload of the PPDU.

virtual uint16_t	GetStaId () const
	Get the ID of the STA that transmitted the PPDU for UL MU, SU_STA_ID otherwise.

std::vector< MHz_u >	GetTxCenterFreqs () const

virtual MHz_u	GetTxChannelWidth () const
	Get the channel width over which the PPDU will effectively be transmitted.

const WifiTxVector &	GetTxVector () const
	Get the TXVECTOR used to send the PPDU.

virtual WifiPpduType	GetType () const
	Return the PPDU type (.

uint64_t	GetUid () const
	Get the UID of the PPDU.

bool	IsTruncatedTx () const

void	Print (std::ostream &os) const
	Print the PPDU contents.

void	ResetTxVector () const
	Reset the TXVECTOR.

void	SetTruncatedTx ()
	Indicate that the PPDU's transmission was aborted due to transmitter switch off.

void	UpdateTxVector (const WifiTxVector &updatedTxVector) const
	Update the TXVECTOR based on some information known at the receiver.

Public Member Functions inherited from ns3::SimpleRefCount< WifiPpdu >
	SimpleRefCount ()
	Default constructor.

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

uint32_t	GetReferenceCount () const
	Get the reference count of the object.

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator.

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

Protected Attributes
LSigHeader	m_lSig
	the L-SIG PHY header

Protected Attributes inherited from ns3::WifiPpdu
WifiModulationClass	m_modulation
	the modulation used for the transmission of this PPDU

const WifiPhyOperatingChannel &	m_operatingChannel
	the operating channel of the PHY

WifiPreamble	m_preamble
	the PHY preamble

WifiConstPsduMap	m_psdus
	the PSDUs contained in this PPDU

std::vector< MHz_u >	m_txCenterFreqs
	the center frequency per segment used for the transmission of this PPDU

std::optional< WifiTxVector >	m_txVector
	the TXVECTOR at TX PHY or the reconstructed TXVECTOR at RX PHY (or std::nullopt if TXVECTOR has not been reconstructed yet)

uint64_t	m_uid
	the unique ID of this PPDU

Private Member Functions
WifiTxVector	DoGetTxVector () const override
	Get the TXVECTOR used to send the PPDU.

void	SetLSigHeader (LSigHeader &lSig, const WifiTxVector &txVector, std::size_t psduSize) const
	Fill in the L-SIG header.

void	SetPhyHeaders (const WifiTxVector &txVector, std::size_t psduSize)
	Fill in the PHY headers.

virtual void	SetTxVectorFromLSigHeader (WifiTxVector &txVector, const LSigHeader &lSig) const
	Fill in the TXVECTOR from L-SIG header.

Private Attributes
MHz_u	m_channelWidth
	the channel width used to transmit that PPDU (needed to distinguish 5 MHz, 10 MHz or 20 MHz PPDUs)

Additional Inherited Members
Protected Member Functions inherited from ns3::WifiPpdu
virtual std::string	PrintPayload () const
	Print the payload of the PPDU.

Detailed Description

OFDM PPDU (11a)

OfdmPpdu stores a preamble, PHY headers and a PSDU of a PPDU with non-HT header, i.e., PPDU that uses OFDM modulation.

Definition at line 35 of file ofdm-ppdu.h.

Constructor & Destructor Documentation

◆ OfdmPpdu()

ns3::OfdmPpdu::OfdmPpdu	(	Ptr< const WifiPsdu >	psdu,
		const WifiTxVector &	txVector,
		const WifiPhyOperatingChannel &	channel,
		uint64_t	uid,
		bool	instantiateLSig = true )

Create an OFDM PPDU.

Parameters

psdu	the PHY payload (PSDU)
txVector	the TXVECTOR that was used for this PPDU
channel	the operating channel of the PHY used to transmit this PPDU
uid	the unique ID of this PPDU
instantiateLSig	flag used to instantiate LSigHeader (set LSigHeader's rate and length), should be disabled by child classes

Definition at line 25 of file ofdm-ppdu.cc.

References NS_LOG_FUNCTION, and SetPhyHeaders().

Referenced by Copy().

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Member Function Documentation

◆ Copy()

Ptr< WifiPpdu > ns3::OfdmPpdu::Copy ( ) const

overridevirtual

Copy this instance.

Returns: a Ptr to a copy of this instance.

Reimplemented from ns3::WifiPpdu.

Reimplemented in ns3::VhtPpdu.

Definition at line 82 of file ofdm-ppdu.cc.

References OfdmPpdu().

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◆ DoGetTxVector()

WifiTxVector ns3::OfdmPpdu::DoGetTxVector ( ) const

overrideprivatevirtual

Get the TXVECTOR used to send the PPDU.

Returns: the TXVECTOR of the PPDU.

Reimplemented from ns3::WifiPpdu.

Reimplemented in ns3::VhtPpdu.

Definition at line 55 of file ofdm-ppdu.cc.

References m_lSig, ns3::WifiPpdu::m_preamble, ns3::WifiTxVector::SetPreambleType(), and SetTxVectorFromLSigHeader().

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◆ GetTxDuration()

Time ns3::OfdmPpdu::GetTxDuration ( ) const

overridevirtual

Get the total transmission duration of the PPDU.

Returns: the transmission duration of the PPDU

Reimplemented from ns3::WifiPpdu.

Reimplemented in ns3::VhtPpdu.

Definition at line 73 of file ofdm-ppdu.cc.

References ns3::WifiPhy::CalculateTxDuration(), ns3::OfdmPpdu::LSigHeader::GetLength(), ns3::WifiPhyOperatingChannel::GetPhyBand(), ns3::WifiPpdu::GetTxVector(), ns3::WifiPhyOperatingChannel::IsSet(), m_lSig, ns3::WifiPpdu::m_operatingChannel, and NS_ASSERT.

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◆ SetLSigHeader()

void ns3::OfdmPpdu::SetLSigHeader	(	LSigHeader &	lSig,
		const WifiTxVector &	txVector,
		std::size_t	psduSize ) const

private

Fill in the L-SIG header.

Parameters

lSig	the L-SIG header to fill in
txVector	the TXVECTOR that was used for this PPDU
psduSize	the size duration of the PHY payload (PSDU)

Definition at line 48 of file ofdm-ppdu.cc.

References ns3::WifiMode::GetDataRate(), ns3::WifiTxVector::GetMode(), m_channelWidth, ns3::OfdmPpdu::LSigHeader::SetLength(), and ns3::OfdmPpdu::LSigHeader::SetRate().

Referenced by SetPhyHeaders().

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◆ SetPhyHeaders()

void ns3::OfdmPpdu::SetPhyHeaders	(	const WifiTxVector &	txVector,
		std::size_t	psduSize )

private

Fill in the PHY headers.

Parameters

txVector	the TXVECTOR that was used for this PPDU
psduSize	the size duration of the PHY payload (PSDU)

Definition at line 41 of file ofdm-ppdu.cc.

References m_lSig, NS_LOG_FUNCTION, and SetLSigHeader().

Referenced by OfdmPpdu().

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◆ SetTxVectorFromLSigHeader()

void ns3::OfdmPpdu::SetTxVectorFromLSigHeader	(	WifiTxVector &	txVector,
		const LSigHeader &	lSig ) const

privatevirtual

Fill in the TXVECTOR from L-SIG header.

Parameters

txVector	the TXVECTOR to fill in
lSig	the L-SIG header

Reimplemented in ns3::ErpOfdmPpdu.

Definition at line 64 of file ofdm-ppdu.cc.

References ns3::OfdmPhy::GetOfdmRate(), ns3::OfdmPpdu::LSigHeader::GetRate(), m_channelWidth, NS_ASSERT, ns3::WifiTxVector::SetChannelWidth(), and ns3::WifiTxVector::SetMode().

Referenced by DoGetTxVector().

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Member Data Documentation

◆ m_channelWidth

MHz_u ns3::OfdmPpdu::m_channelWidth

private

the channel width used to transmit that PPDU (needed to distinguish 5 MHz, 10 MHz or 20 MHz PPDUs)

Definition at line 129 of file ofdm-ppdu.h.

Referenced by SetLSigHeader(), and SetTxVectorFromLSigHeader().

◆ m_lSig

LSigHeader ns3::OfdmPpdu::m_lSig

protected

the L-SIG PHY header

Definition at line 99 of file ofdm-ppdu.h.

Referenced by ns3::HtPpdu::DoGetTxVector(), DoGetTxVector(), ns3::VhtPpdu::DoGetTxVector(), GetTxDuration(), ns3::VhtPpdu::GetTxDuration(), ns3::HePpdu::SetLSigHeader(), ns3::HtPpdu::SetPhyHeaders(), SetPhyHeaders(), ns3::VhtPpdu::SetPhyHeaders(), ns3::EhtPpdu::SetTxVectorFromPhyHeaders(), and ns3::HePpdu::SetTxVectorFromPhyHeaders().

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

src/wifi/model/non-ht/ofdm-ppdu.h
src/wifi/model/non-ht/ofdm-ppdu.cc

Classes

Public Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ OfdmPpdu()

Member Function Documentation

◆ Copy()

◆ DoGetTxVector()

◆ GetTxDuration()

◆ SetLSigHeader()

◆ SetPhyHeaders()

◆ SetTxVectorFromLSigHeader()

Member Data Documentation

◆ m_channelWidth

◆ m_lSig