WifiPpdu stores a preamble, a modulation class, PHY headers and a PSDU. More...

#include "wifi-ppdu.h"

Inheritance diagram for ns3::WifiPpdu:

Collaboration diagram for ns3::WifiPpdu:

Public Member Functions
	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.

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

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.

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

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 Member Functions
virtual std::string	PrintPayload () const
	Print the payload of the PPDU.

Protected Attributes
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
virtual WifiTxVector	DoGetTxVector () const
	Get the TXVECTOR used to send the PPDU.

Private Attributes
bool	m_truncatedTx
	flag indicating whether the frame's transmission was aborted due to transmitter switch off

uint8_t	m_txAntennas
	the number of antennas used to transmit this PPDU

MHz_u	m_txChannelWidth
	The channel width used for the transmission of this PPDU.

uint8_t	m_txPowerLevel
	the transmission power level (used only for TX and initializing the returned WifiTxVector)

Detailed Description

WifiPpdu stores a preamble, a modulation class, PHY headers and a PSDU.

This class should be subclassed for each amendment.

Definition at line 46 of file wifi-ppdu.h.

Constructor & Destructor Documentation

◆ WifiPpdu() [1/2]

ns3::WifiPpdu::WifiPpdu	(	Ptr< const WifiPsdu >	psdu,
		const WifiTxVector &	txVector,
		const WifiPhyOperatingChannel &	channel,
		uint64_t	uid = UINT64_MAX )

Create a PPDU storing a PSDU.

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

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

References m_psdus, NS_LOG_FUNCTION, and ns3::SU_STA_ID.

Referenced by Copy().

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◆ WifiPpdu() [2/2]

ns3::WifiPpdu::WifiPpdu	(	const WifiConstPsduMap &	psdus,
		const WifiTxVector &	txVector,
		const WifiPhyOperatingChannel &	channel,
		uint64_t	uid )

Create a PPDU storing a map of PSDUs.

Parameters

psdus	the PHY payloads (PSDUs)
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

Definition at line 83 of file wifi-ppdu.cc.

References m_psdus, and NS_LOG_FUNCTION.

◆ ~WifiPpdu()

ns3::WifiPpdu::~WifiPpdu ( )

virtual

Destructor for WifiPpdu.

Definition at line 103 of file wifi-ppdu.cc.

References m_psdus.

Member Function Documentation

◆ Copy()

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

virtual

Copy this instance.

Returns: a Ptr to a copy of this instance.

Reimplemented in ns3::DsssPpdu, ns3::EhtPpdu, ns3::ErpOfdmPpdu, ns3::HePpdu, ns3::HtPpdu, ns3::OfdmPpdu, and ns3::VhtPpdu.

Definition at line 281 of file wifi-ppdu.cc.

References WifiPpdu(), and NS_FATAL_ERROR.

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◆ DoesOverlapChannel()

bool ns3::WifiPpdu::DoesOverlapChannel	(	MHz_u	minFreq,
		MHz_u	maxFreq ) const

Check whether the given PPDU overlaps a given channel.

Parameters

minFreq	the minimum frequency of the channel
maxFreq	the maximum frequency of the channel

Returns: true if this PPDU overlaps the channel, false otherwise

The PPDU does not overlap the channel in two cases.

First non-overlapping case:

                                   ┌─────────┐
                           PPDU    │ Nominal │
                                   │  Band   │
                                   └─────────┘
                              minTxFreq   maxTxFreq

  minFreq                       maxFreq
    ┌──────────────────────────────┐
    │           Channel            │
    └──────────────────────────────┘

Second non-overlapping case:

    ┌─────────┐

PPDU │ Nominal │ │ Band │ └─────────┘ minTxFreq maxTxFreq

         minFreq                       maxFreq
           ┌──────────────────────────────┐
           │           Channel            │
           └──────────────────────────────┘

Definition at line 186 of file wifi-ppdu.cc.

References m_txCenterFreqs, m_txChannelWidth, and NS_LOG_FUNCTION.

◆ DoGetTxVector()

WifiTxVector ns3::WifiPpdu::DoGetTxVector ( ) const

privatevirtual

Get the TXVECTOR used to send the PPDU.

Returns: the TXVECTOR of the PPDU.

Reimplemented in ns3::DsssPpdu, ns3::HePpdu, ns3::HtPpdu, ns3::OfdmPpdu, and ns3::VhtPpdu.

Definition at line 126 of file wifi-ppdu.cc.

References NS_FATAL_ERROR.

Referenced by GetTxVector().

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◆ GetModulation()

WifiModulationClass ns3::WifiPpdu::GetModulation ( ) const

Get the modulation used for the PPDU.

Returns: the modulation used for the PPDU

Definition at line 168 of file wifi-ppdu.cc.

References m_modulation.

◆ GetPreamble()

WifiPreamble ns3::WifiPpdu::GetPreamble ( ) const

Get the preamble of the PPDU.

Returns: the preamble of the PPDU

Definition at line 239 of file wifi-ppdu.cc.

References m_preamble.

◆ GetPsdu()

Ptr< const WifiPsdu > ns3::WifiPpdu::GetPsdu ( ) const

Get the payload of the PPDU.

Returns: the PSDU

Definition at line 149 of file wifi-ppdu.cc.

References m_psdus.

Referenced by PrintPayload(), and ns3::VhtPpdu::SetTxVectorFromPhyHeaders().

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◆ GetStaId()

uint16_t ns3::WifiPpdu::GetStaId ( ) const

virtual

Get the ID of the STA that transmitted the PPDU for UL MU, SU_STA_ID otherwise.

Returns: the ID of the STA that transmitted the PPDU for UL MU, SU_STA_ID otherwise

Reimplemented in ns3::HePpdu.

Definition at line 251 of file wifi-ppdu.cc.

References ns3::SU_STA_ID.

◆ GetTxCenterFreqs()

std::vector< MHz_u > ns3::WifiPpdu::GetTxCenterFreqs ( ) const

Returns: the center frequency per segment used for the transmission of this PPDU

Definition at line 180 of file wifi-ppdu.cc.

References m_txCenterFreqs.

◆ GetTxChannelWidth()

MHz_u ns3::WifiPpdu::GetTxChannelWidth ( ) const

virtual

Get the channel width over which the PPDU will effectively be transmitted.

Returns: the effective channel width used for the tranmsission

Reimplemented in ns3::HePpdu.

Definition at line 174 of file wifi-ppdu.cc.

References m_txChannelWidth.

◆ GetTxDuration()

Time ns3::WifiPpdu::GetTxDuration ( ) const

virtual

Get the total transmission duration of the PPDU.

Returns: the transmission duration of the PPDU

Reimplemented in ns3::DsssPpdu, ns3::HePpdu, ns3::HtPpdu, ns3::OfdmPpdu, and ns3::VhtPpdu.

Definition at line 257 of file wifi-ppdu.cc.

References ns3::MicroSeconds(), and NS_FATAL_ERROR.

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◆ GetTxVector()

const WifiTxVector & ns3::WifiPpdu::GetTxVector ( ) const

Get the TXVECTOR used to send the PPDU.

Returns: the TXVECTOR of the PPDU.

Definition at line 113 of file wifi-ppdu.cc.

References DoGetTxVector(), m_txAntennas, m_txChannelWidth, m_txPowerLevel, and m_txVector.

Referenced by ns3::DsssPpdu::GetTxDuration(), ns3::HtPpdu::GetTxDuration(), ns3::OfdmPpdu::GetTxDuration(), and ns3::VhtPpdu::GetTxDuration().

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◆ GetType()

WifiPpduType ns3::WifiPpdu::GetType ( ) const

virtual

Return the PPDU type (.

See also: WifiPpduType)

Returns: the PPDU type

Reimplemented in ns3::EhtPpdu, ns3::HePpdu, and ns3::VhtPpdu.

Definition at line 245 of file wifi-ppdu.cc.

References ns3::WIFI_PPDU_TYPE_SU.

◆ GetUid()

uint64_t ns3::WifiPpdu::GetUid ( ) const

Get the UID of the PPDU.

Returns: the UID of the PPDU

Definition at line 233 of file wifi-ppdu.cc.

References m_uid.

◆ IsTruncatedTx()

bool ns3::WifiPpdu::IsTruncatedTx ( ) const

Returns: c\ true if the PPDU's transmission was aborted due to transmitter switch off

Definition at line 155 of file wifi-ppdu.cc.

References m_truncatedTx.

◆ Print()

void ns3::WifiPpdu::Print ( std::ostream & os ) const

Print the PPDU contents.

Parameters

os	output stream in which the data should be printed.

Definition at line 265 of file wifi-ppdu.cc.

References m_modulation, m_preamble, m_truncatedTx, m_uid, and PrintPayload().

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◆ PrintPayload()

std::string ns3::WifiPpdu::PrintPayload ( ) const

protectedvirtual

Print the payload of the PPDU.

Returns: information on the payload part of the PPDU

Reimplemented in ns3::HePpdu.

Definition at line 273 of file wifi-ppdu.cc.

References GetPsdu().

Referenced by Print().

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◆ ResetTxVector()

void ns3::WifiPpdu::ResetTxVector ( ) const

Reset the TXVECTOR.

Definition at line 134 of file wifi-ppdu.cc.

References m_txVector, and NS_LOG_FUNCTION.

Referenced by UpdateTxVector().

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◆ SetTruncatedTx()

void ns3::WifiPpdu::SetTruncatedTx ( )

Indicate that the PPDU's transmission was aborted due to transmitter switch off.

Definition at line 161 of file wifi-ppdu.cc.

References m_truncatedTx, and NS_LOG_FUNCTION.

◆ UpdateTxVector()

void ns3::WifiPpdu::UpdateTxVector ( const WifiTxVector & updatedTxVector ) const

Update the TXVECTOR based on some information known at the receiver.

Parameters

updatedTxVector the updated TXVECTOR.

Definition at line 141 of file wifi-ppdu.cc.

References m_txVector, NS_LOG_FUNCTION, and ResetTxVector().

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Member Data Documentation

◆ m_modulation

WifiModulationClass ns3::WifiPpdu::m_modulation

protected

the modulation used for the transmission of this PPDU

Definition at line 193 of file wifi-ppdu.h.

Referenced by GetModulation(), and Print().

◆ m_operatingChannel

const WifiPhyOperatingChannel& ns3::WifiPpdu::m_operatingChannel

protected

the operating channel of the PHY

Definition at line 201 of file wifi-ppdu.h.

Referenced by ns3::HtPpdu::GetTxDuration(), ns3::OfdmPpdu::GetTxDuration(), ns3::EhtPpdu::SetEhtPhyHeader(), ns3::HePpdu::SetHeSigHeader(), ns3::HePpdu::SetLSigHeader(), ns3::HtPpdu::SetLSigHeader(), ns3::EhtPpdu::SetTxVectorFromPhyHeaders(), and ns3::HePpdu::SetTxVectorFromPhyHeaders().

◆ m_preamble

WifiPreamble ns3::WifiPpdu::m_preamble

protected

the PHY preamble

Definition at line 192 of file wifi-ppdu.h.

Referenced by ns3::DsssPpdu::DoGetTxVector(), ns3::HePpdu::DoGetTxVector(), ns3::HtPpdu::DoGetTxVector(), ns3::OfdmPpdu::DoGetTxVector(), ns3::VhtPpdu::DoGetTxVector(), GetPreamble(), ns3::EhtPpdu::GetType(), ns3::VhtPpdu::GetType(), ns3::EhtPpdu::IsDlMu(), ns3::EhtPpdu::IsUlMu(), Print(), ns3::EhtPpdu::SetEhtPhyHeader(), ns3::HePpdu::SetHeSigHeader(), ns3::EhtPpdu::SetTxVectorFromPhyHeaders(), and ns3::VhtPpdu::SetVhtSigHeader().

◆ m_psdus

WifiConstPsduMap ns3::WifiPpdu::m_psdus

protected

the PSDUs contained in this PPDU

Definition at line 194 of file wifi-ppdu.h.

Referenced by ns3::HePpdu::HePpdu(), WifiPpdu(), WifiPpdu(), ~WifiPpdu(), GetPsdu(), ns3::EhtPpdu::GetType(), ns3::EhtPpdu::IsDlMu(), ns3::EhtPpdu::IsUlMu(), ns3::EhtPpdu::SetTxVectorFromPhyHeaders(), and ns3::HePpdu::SetTxVectorFromPhyHeaders().

◆ m_truncatedTx

bool ns3::WifiPpdu::m_truncatedTx

private

flag indicating whether the frame's transmission was aborted due to transmitter switch off

Definition at line 211 of file wifi-ppdu.h.

Referenced by IsTruncatedTx(), Print(), and SetTruncatedTx().

◆ m_txAntennas

uint8_t ns3::WifiPpdu::m_txAntennas

private

the number of antennas used to transmit this PPDU

Definition at line 215 of file wifi-ppdu.h.

Referenced by GetTxVector().

◆ m_txCenterFreqs

std::vector<MHz_u> ns3::WifiPpdu::m_txCenterFreqs

protected

the center frequency per segment used for the transmission of this PPDU

Definition at line 195 of file wifi-ppdu.h.

Referenced by DoesOverlapChannel(), and GetTxCenterFreqs().

◆ m_txChannelWidth

MHz_u ns3::WifiPpdu::m_txChannelWidth

private

The channel width used for the transmission of this PPDU.

This has to be stored since channel width can not always be obtained from the PHY headers, especially for non-HT PPDU, since we do not sense the spectrum to determine the occupied channel width for simplicity.

Definition at line 217 of file wifi-ppdu.h.

Referenced by DoesOverlapChannel(), GetTxChannelWidth(), and GetTxVector().

◆ m_txPowerLevel

uint8_t ns3::WifiPpdu::m_txPowerLevel

private

the transmission power level (used only for TX and initializing the returned WifiTxVector)

Definition at line 213 of file wifi-ppdu.h.

Referenced by GetTxVector().

◆ m_txVector

std::optional<WifiTxVector> ns3::WifiPpdu::m_txVector

mutableprotected

the TXVECTOR at TX PHY or the reconstructed TXVECTOR at RX PHY (or std::nullopt if TXVECTOR has not been reconstructed yet)

Definition at line 199 of file wifi-ppdu.h.

Referenced by GetTxVector(), ResetTxVector(), and UpdateTxVector().

◆ m_uid

uint64_t ns3::WifiPpdu::m_uid

protected

the unique ID of this PPDU

Definition at line 197 of file wifi-ppdu.h.

Referenced by GetUid(), and Print().

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

src/wifi/model/wifi-ppdu.h
src/wifi/model/wifi-ppdu.cc

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ WifiPpdu() [1/2]

◆ WifiPpdu() [2/2]

◆ ~WifiPpdu()

Member Function Documentation

◆ Copy()

◆ DoesOverlapChannel()

◆ DoGetTxVector()

◆ GetModulation()

◆ GetPreamble()

◆ GetPsdu()

◆ GetStaId()

◆ GetTxCenterFreqs()

◆ GetTxChannelWidth()

◆ GetTxDuration()

◆ GetTxVector()

◆ GetType()

◆ GetUid()

◆ IsTruncatedTx()

◆ Print()

◆ PrintPayload()

◆ ResetTxVector()

◆ SetTruncatedTx()

◆ UpdateTxVector()

Member Data Documentation

◆ m_modulation

◆ m_operatingChannel

◆ m_preamble

◆ m_psdus

◆ m_truncatedTx

◆ m_txAntennas

◆ m_txCenterFreqs

◆ m_txChannelWidth

◆ m_txPowerLevel

◆ m_txVector

◆ m_uid