FrameExchangeManager is a base class handling the basic frame exchange sequences for non-QoS stations. More...

#include "frame-exchange-manager.h"

Inheritance diagram for ns3::FrameExchangeManager:

Collaboration diagram for ns3::FrameExchangeManager:

Public Types
typedef Callback< void, Ptr< const WifiMacQueueItem > >	AckedMpdu
	typedef for a callback to invoke when an MPDU is successfully acknowledged. More...

typedef Callback< void, WifiMacDropReason, Ptr< const WifiMacQueueItem > >	DroppedMpdu
	typedef for a callback to invoke when an MPDU is dropped. More...

Public Member Functions
	FrameExchangeManager ()

virtual	~FrameExchangeManager ()

virtual void	CalculateAcknowledgmentTime (WifiAcknowledgment *acknowledgment) const
	Calculate the time required to acknowledge a frame according to the given acknowledgment method. More...

virtual void	CalculateProtectionTime (WifiProtection *protection) const
	Calculate the time required to protect a frame according to the given protection method. More...

Ptr< WifiAckManager >	GetAckManager (void) const
	Get the Acknowledgment Manager used by this node. More...

Ptr< WifiProtectionManager >	GetProtectionManager (void) const
	Get the Protection Manager used by this node. More...

const WifiTxTimer &	GetWifiTxTimer (void) const
	Get a const reference to the WifiTxTimer object. More...

bool	IsPromisc (void) const
	Check if the device is operating in promiscuous mode. More...

virtual void	NotifyInternalCollision (Ptr< Txop > txop)
	Notify that an internal collision has occurred for the given Txop. More...

void	NotifyOffNow (void)
	This method is typically invoked by the PhyListener to notify the MAC layer that the device has been put into off mode. More...

void	NotifySleepNow (void)
	This method is typically invoked by the PhyListener to notify the MAC layer that the device has been put into sleep mode. More...

virtual void	NotifySwitchingStartNow (Time duration)

void	Receive (Ptr< WifiPsdu > psdu, RxSignalInfo rxSignalInfo, WifiTxVector txVector, std::vector< bool > perMpduStatus)
	This method is intended to be called by the PHY layer every time an MPDU is received and also when the reception of an A-MPDU is completed. More...

virtual void	ResetPhy (void)
	Remove WifiPhy associated with this FrameExchangeManager. More...

void	SetAckedMpduCallback (AckedMpdu callback)
	Set the callback to invoke when an MPDU is successfully acked. More...

virtual void	SetAckManager (Ptr< WifiAckManager > ackManager)
	Set the Acknowledgment Manager to use. More...

virtual void	SetAddress (Mac48Address address)
	Set the MAC address. More...

virtual void	SetBssid (Mac48Address bssid)
	Set the Basic Service Set Identification. More...

virtual void	SetChannelAccessManager (const Ptr< ChannelAccessManager > channelAccessManager)
	Set the channel access manager to use. More...

virtual void	SetDroppedMpduCallback (DroppedMpdu callback)
	Set the callback to invoke when an MPDU is dropped. More...

virtual void	SetMacRxMiddle (const Ptr< MacRxMiddle > rxMiddle)
	Set the MAC RX Middle to use. More...

virtual void	SetMacTxMiddle (const Ptr< MacTxMiddle > txMiddle)
	Set the MAC TX Middle to use. More...

void	SetPromisc (void)
	Enable promiscuous mode. More...

virtual void	SetProtectionManager (Ptr< WifiProtectionManager > protectionManager)
	Set the Protection Manager to use. More...

virtual void	SetWifiMac (const Ptr< WifiMac > mac)
	Set the MAC layer to use. More...

virtual void	SetWifiPhy (const Ptr< WifiPhy > phy)
	Set the PHY layer to use. More...

virtual bool	StartTransmission (Ptr< Txop > dcf)
	Request the FrameExchangeManager to start a frame exchange sequence. More...

Public Member Functions inherited from ns3::Object
	Object ()
	Constructor. More...

virtual	~Object ()
	Destructor. More...

void	AggregateObject (Ptr< Object > other)
	Aggregate two Objects together. More...

void	Dispose (void)
	Dispose of this Object. More...

AggregateIterator	GetAggregateIterator (void) const
	Get an iterator to the Objects aggregated to this one. More...

virtual TypeId	GetInstanceTypeId (void) const
	Get the most derived TypeId for this Object. More...

template<>
Ptr< Object >	GetObject () const
	Specialization of () for objects of type ns3::Object. More...

template<typename T >
Ptr< T >	GetObject (TypeId tid) const
	Get a pointer to the requested aggregated Object by TypeId. More...

template<>
Ptr< Object >	GetObject (TypeId tid) const
	Specialization of (TypeId tid) for objects of type ns3::Object. More...

template<typename T >
Ptr< T >	GetObject (void) const
	Get a pointer to the requested aggregated Object. More...

void	Initialize (void)
	Invoke DoInitialize on all Objects aggregated to this one. More...

bool	IsInitialized (void) const
	Check if the object has been initialized. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	Default constructor. More...

	SimpleRefCount (const SimpleRefCount &o[[maybe_unused]])
	Copy constructor. More...

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

SimpleRefCount &	operator= ([[maybe_unused]] const SimpleRefCount &o)
	Assignment operator. More...

void	Ref (void) const
	Increment the reference count. More...

void	Unref (void) const
	Decrement the reference count. More...

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const
	Get the value of an attribute, raising fatal errors if unsuccessful. More...

bool	GetAttributeFailSafe (std::string name, AttributeValue &value) const
	Get the value of an attribute without raising erros. More...

void	SetAttribute (std::string name, const AttributeValue &value)
	Set a single attribute, raising fatal errors if unsuccessful. More...

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
	Set a single attribute without raising errors. More...

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
	Connect a TraceSource to a Callback with a context. More...

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
	Connect a TraceSource to a Callback without a context. More...

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected with a context. More...

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)
	Disconnect from a TraceSource a Callback previously connected without a context. More...

Static Public Member Functions
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId (void)
	Register this type. More...

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Protected Member Functions
virtual void	CtsTimeout (Ptr< WifiMacQueueItem > rts, const WifiTxVector &txVector)
	Called when the CTS timeout expires. More...

virtual void	DequeueMpdu (Ptr< const WifiMacQueueItem > mpdu)
	Dequeue the given MPDU from the queue in which it is stored. More...

void	DoCtsTimeout (Ptr< WifiPsdu > psdu)
	Take required actions when the CTS timer fired after sending an RTS to protect the given PSDU expires. More...

void	DoDispose () override
	Destructor implementation. More...

void	DoSendCtsAfterRts (const WifiMacHeader &rtsHdr, WifiTxVector &ctsTxVector, double rtsSnr)
	Send CTS after receiving RTS. More...

virtual void	EndReceiveAmpdu (Ptr< const WifiPsdu > psdu, const RxSignalInfo &rxSignalInfo, const WifiTxVector &txVector, const std::vector< bool > &perMpduStatus)
	This method is called when the reception of an A-MPDU including multiple MPDUs is completed. More...

virtual void	ForwardMpduDown (Ptr< WifiMacQueueItem > mpdu, WifiTxVector &txVector)
	Forward an MPDU down to the PHY layer. More...

virtual Time	GetCtsToSelfDurationId (const WifiTxVector &ctsTxVector, Time txDuration, Time response) const
	Compute how to set the Duration/ID field of a CTS-to-self frame to send to protect a frame transmitted with the given TX vector. More...

Ptr< WifiMacQueueItem >	GetFirstFragmentIfNeeded (Ptr< WifiMacQueueItem > mpdu)
	Fragment the given MPDU if needed. More...

virtual Time	GetFrameDurationId (const WifiMacHeader &header, uint32_t size, const WifiTxParameters &txParams, Ptr< Packet > fragmentedPacket) const
	Compute how to set the Duration/ID field of a frame being transmitted with the given TX parameters. More...

Ptr< WifiMacQueueItem >	GetNextFragment (void)
	Get the next fragment of the current MSDU. More...

virtual uint32_t	GetPsduSize (Ptr< const WifiMacQueueItem > mpdu, const WifiTxVector &txVector) const
	Get the size in bytes of the given MPDU, which is to be transmitted with the given TXVECTOR. More...

virtual Time	GetRtsDurationId (const WifiTxVector &rtsTxVector, Time txDuration, Time response) const
	Compute how to set the Duration/ID field of an RTS frame to send to protect a frame transmitted with the given TX vector. More...

virtual Time	GetTxDuration (uint32_t ppduPayloadSize, Mac48Address receiver, const WifiTxParameters &txParams) const
	Get the updated TX duration of the frame associated with the given TX parameters if the size of the PSDU addressed to the given receiver becomes ppduPayloadSize. More...

virtual void	NavResetTimeout (void)
	Reset the NAV upon expiration of the NAV reset timer. More...

virtual void	NormalAckTimeout (Ptr< WifiMacQueueItem > mpdu, const WifiTxVector &txVector)
	Called when the Ack timeout expires. More...

virtual void	NotifyPacketDiscarded (Ptr< const WifiMacQueueItem > mpdu)
	Pass the given MPDU, discarded because of the max retry limit was reached, to the MPDU dropped callback. More...

virtual void	NotifyReceivedNormalAck (Ptr< WifiMacQueueItem > mpdu)
	Notify other components that an MPDU was acknowledged. More...

virtual void	PreProcessFrame (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector)
	Perform actions that are possibly needed when receiving any frame, independently of whether the frame is addressed to this station (e.g., setting the NAV or the TXOP holder). More...

virtual void	ReceivedNormalAck (Ptr< WifiMacQueueItem > mpdu, const WifiTxVector &txVector, const WifiTxVector &ackTxVector, const RxSignalInfo &rxInfo, double snr)
	Perform the actions needed when a Normal Ack is received. More...

virtual void	ReceiveMpdu (Ptr< WifiMacQueueItem > mpdu, RxSignalInfo rxSignalInfo, const WifiTxVector &txVector, bool inAmpdu)
	This method handles the reception of an MPDU (possibly included in an A-MPDU) More...

virtual void	ReleaseSequenceNumber (Ptr< WifiMacQueueItem > mpdu) const
	Make the sequence number of the given MPDU available again if the MPDU has never been transmitted. More...

virtual void	RetransmitMpduAfterMissedAck (Ptr< WifiMacQueueItem > mpdu) const
	Retransmit an MPDU that was not acknowledged. More...

void	SendCtsAfterRts (const WifiMacHeader &rtsHdr, WifiMode rtsTxMode, double rtsSnr)
	Send CTS after receiving RTS. More...

void	SendCtsToSelf (const WifiTxParameters &txParams)
	Send CTS for a CTS-to-self mechanism. More...

void	SendMpduWithProtection (Ptr< WifiMacQueueItem > mpdu, WifiTxParameters &txParams)
	Send an MPDU with the given TX parameters (with the specified protection). More...

void	SendNormalAck (const WifiMacHeader &hdr, const WifiTxVector &dataTxVector, double dataSnr)
	Send Normal Ack. More...

void	SendRts (const WifiTxParameters &txParams)
	Send RTS to begin RTS-CTS-Data-Ack transaction. More...

virtual void	TransmissionFailed (void)
	Take necessary actions upon a transmission failure. More...

virtual void	TransmissionSucceeded (void)
	Take necessary actions upon a transmission success. More...

virtual void	UpdateNav (Ptr< const WifiPsdu > psdu, const WifiTxVector &txVector)
	Update the NAV, if needed, based on the Duration/ID of the given psdu. More...

void	UpdateTxDuration (Mac48Address receiver, WifiTxParameters &txParams) const
	Update the TX duration field of the given TX parameters after that the PSDU addressed to the given receiver has changed. More...

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object. More...

virtual void	DoInitialize (void)
	Initialize() implementation. More...

virtual void	NotifyNewAggregate (void)
	Notify all Objects aggregated to this one of a new Object being aggregated. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)
	Complete construction of ObjectBase; invoked by derived classes. More...

virtual void	NotifyConstructionCompleted (void)
	Notifier called once the ObjectBase is fully constructed. More...

Protected Attributes
AckedMpdu	m_ackedMpduCallback
	the acknowledged MPDU callback More...

Mac48Address	m_bssid
	BSSID address (Mac48Address) More...

Ptr< ChannelAccessManager >	m_channelAccessManager
	the channel access manager More...

Ptr< Txop >	m_dcf
	the DCF/EDCAF that gained channel access More...

DroppedMpdu	m_droppedMpduCallback
	the dropped MPDU callback More...

Ptr< WifiMac >	m_mac
	the MAC layer on this station More...

Time	m_navEnd
	NAV expiration time. More...

EventId	m_navResetEvent
	the event to reset the NAV after an RTS More...

Ptr< WifiPhy >	m_phy
	the PHY layer on this station More...

bool	m_promisc
	Flag if the device is operating in promiscuous mode. More...

Ptr< MacRxMiddle >	m_rxMiddle
	the MAC RX Middle on this station More...

Mac48Address	m_self
	the MAC address of this device More...

Ptr< MacTxMiddle >	m_txMiddle
	the MAC TX Middle on this station More...

WifiTxTimer	m_txTimer
	the timer set upon frame transmission More...

Private Member Functions
virtual void	Reset (void)
	Reset this frame exchange manager. More...

void	RxStartIndication (WifiTxVector txVector, Time psduDuration)

void	SendMpdu (void)
	Send the current MPDU, which can be acknowledged by a Normal Ack. More...

Private Attributes
Ptr< WifiAckManager >	m_ackManager
	Acknowledgment manager. More...

Ptr< Packet >	m_fragmentedPacket
	the MSDU being fragmented More...

bool	m_moreFragments
	true if a fragment has to be sent after a SIFS More...

Ptr< WifiMacQueueItem >	m_mpdu
	the MPDU being transmitted More...

Ptr< WifiProtectionManager >	m_protectionManager
	Protection manager. More...

WifiTxParameters	m_txParams
	the TX parameters for the current frame More...

Additional Inherited Members
Related Functions inherited from ns3::ObjectBase
static TypeId	GetObjectIid (void)
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More...

Detailed Description

FrameExchangeManager is a base class handling the basic frame exchange sequences for non-QoS stations.

Introspection did not find any typical Config paths.

No Attributes are defined for this type.
No TraceSources are defined for this type.
Size of this type is 424 bytes (on a 64-bit architecture).

Definition at line 51 of file frame-exchange-manager.h.

Member Typedef Documentation

◆ AckedMpdu

typedef Callback<void, Ptr<const WifiMacQueueItem> > ns3::FrameExchangeManager::AckedMpdu

typedef for a callback to invoke when an MPDU is successfully acknowledged.

Definition at line 69 of file frame-exchange-manager.h.

◆ DroppedMpdu

typedef Callback<void, WifiMacDropReason, Ptr<const WifiMacQueueItem> > ns3::FrameExchangeManager::DroppedMpdu

typedef for a callback to invoke when an MPDU is dropped.

Definition at line 65 of file frame-exchange-manager.h.

Constructor & Destructor Documentation

◆ FrameExchangeManager()

ns3::FrameExchangeManager::FrameExchangeManager ( )

Definition at line 54 of file frame-exchange-manager.cc.

References NS_LOG_FUNCTION.

◆ ~FrameExchangeManager()

ns3::FrameExchangeManager::~FrameExchangeManager ( )

virtual

Definition at line 62 of file frame-exchange-manager.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

◆ CalculateAcknowledgmentTime()

void ns3::FrameExchangeManager::CalculateAcknowledgmentTime ( WifiAcknowledgment * acknowledgment ) const

virtual

Calculate the time required to acknowledge a frame according to the given acknowledgment method.

The acknowledgment time is stored in the acknowledgment object itself.

Parameters

acknowledgment the acknowledgment method

Reimplemented in ns3::HtFrameExchangeManager, and ns3::HeFrameExchangeManager.

Definition at line 495 of file frame-exchange-manager.cc.

References ns3::WifiAcknowledgment::acknowledgmentTime, ns3::WifiNormalAck::ackTxVector, ns3::WifiPhy::CalculateTxDuration(), ns3::GetAckSize(), ns3::WifiPhy::GetPhyBand(), ns3::WifiPhy::GetSifs(), m_phy, ns3::WifiAcknowledgment::method, ns3::WifiAcknowledgment::NONE, ns3::WifiAcknowledgment::NORMAL_ACK, NS_ASSERT, NS_LOG_FUNCTION, and ns3::Seconds().

Referenced by ns3::HtFrameExchangeManager::CalculateAcknowledgmentTime(), SendMpduWithProtection(), and ns3::QosFrameExchangeManager::TryAddMpdu().

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◆ CalculateProtectionTime()

void ns3::FrameExchangeManager::CalculateProtectionTime ( WifiProtection * protection ) const

virtual

Calculate the time required to protect a frame according to the given protection method.

The protection time is stored in the protection object itself.

Parameters

protection the protection method

Definition at line 466 of file frame-exchange-manager.cc.

References ns3::WifiPhy::CalculateTxDuration(), ns3::WifiProtection::CTS_TO_SELF, ns3::WifiRtsCtsProtection::ctsTxVector, ns3::WifiCtsToSelfProtection::ctsTxVector, ns3::GetCtsSize(), ns3::WifiPhy::GetPhyBand(), ns3::GetRtsSize(), ns3::WifiPhy::GetSifs(), m_phy, ns3::WifiProtection::method, ns3::WifiProtection::NONE, NS_ASSERT, NS_LOG_FUNCTION, ns3::WifiProtection::protectionTime, ns3::WifiProtection::RTS_CTS, ns3::WifiRtsCtsProtection::rtsTxVector, and ns3::Seconds().

Referenced by ns3::QosFrameExchangeManager::TryAddMpdu(), and ns3::HtFrameExchangeManager::TryAggregateMsdu().

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◆ CtsTimeout()

void ns3::FrameExchangeManager::CtsTimeout	(	Ptr< WifiMacQueueItem >	rts,
		const WifiTxVector &	txVector
	)

protectedvirtual

Called when the CTS timeout expires.

Parameters

rts	the RTS that solicited a CTS response
txVector	the TXVECTOR used to transmit the RTS frame

Reimplemented in ns3::HtFrameExchangeManager, and ns3::HeFrameExchangeManager.

Definition at line 809 of file frame-exchange-manager.cc.

References DoCtsTimeout(), m_mpdu, and NS_LOG_FUNCTION.

Referenced by ns3::HtFrameExchangeManager::CtsTimeout(), and SendRts().

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◆ DequeueMpdu()

void ns3::FrameExchangeManager::DequeueMpdu ( Ptr< const WifiMacQueueItem > mpdu )

protectedvirtual

Dequeue the given MPDU from the queue in which it is stored.

Parameters

mpdu	the given MPDU

Definition at line 449 of file frame-exchange-manager.cc.

References m_mac, and NS_LOG_DEBUG.

Referenced by ns3::HtFrameExchangeManager::DequeuePsdu(), DoCtsTimeout(), ns3::HtFrameExchangeManager::MissedBlockAck(), NormalAckTimeout(), NotifyInternalCollision(), ReceivedNormalAck(), and SendMpdu().

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◆ DoCtsTimeout()

void ns3::FrameExchangeManager::DoCtsTimeout ( Ptr< WifiPsdu > psdu )

protected

Take required actions when the CTS timer fired after sending an RTS to protect the given PSDU expires.

Parameters

psdu	the PSDU protected by the failed RTS

Definition at line 818 of file frame-exchange-manager.cc.

References ns3::WifiPsdu::begin(), DequeueMpdu(), ns3::WifiPsdu::GetHeader(), m_dcf, m_mac, NotifyPacketDiscarded(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::PeekPointer(), ReleaseSequenceNumber(), ns3::Txop::ResetCw(), TransmissionFailed(), and ns3::Txop::UpdateFailedCw().

Referenced by CtsTimeout(), ns3::HeFrameExchangeManager::CtsTimeout(), and ns3::HtFrameExchangeManager::CtsTimeout().

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◆ DoDispose()

void ns3::FrameExchangeManager::DoDispose ( void )

overrideprotectedvirtual

Destructor implementation.

This method is called by Dispose() or by the Object's destructor, whichever comes first.

Subclasses are expected to implement their real destruction code in an overridden version of this method and chain up to their parent's implementation once they are done. i.e, for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose() method.

It is safe to call GetObject() from within this method.

Reimplemented from ns3::Object.

Reimplemented in ns3::QosFrameExchangeManager, ns3::HtFrameExchangeManager, and ns3::HeFrameExchangeManager.

Definition at line 83 of file frame-exchange-manager.cc.

References ns3::Object::DoDispose(), m_ackManager, m_channelAccessManager, m_fragmentedPacket, m_mac, m_phy, m_protectionManager, m_rxMiddle, m_txMiddle, ns3::MakeCallback(), NS_LOG_FUNCTION, Reset(), RxStartIndication(), and ns3::ObjectBase::TraceDisconnectWithoutContext().

Referenced by ns3::QosFrameExchangeManager::DoDispose(), and ns3::WaveFrameExchangeManager::DoDispose().

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◆ DoSendCtsAfterRts()

void ns3::FrameExchangeManager::DoSendCtsAfterRts	(	const WifiMacHeader &	rtsHdr,
		WifiTxVector &	ctsTxVector,
		double	rtsSnr
	)

protected

Send CTS after receiving RTS.

Parameters

rtsHdr	the header of the received RTS
ctsTxVector	the TXVECTOR to use to transmit the CTS
rtsSnr	the SNR of the RTS in linear scale

Definition at line 609 of file frame-exchange-manager.cc.

Referenced by SendCtsAfterRts().

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◆ EndReceiveAmpdu()

void ns3::FrameExchangeManager::EndReceiveAmpdu	(	Ptr< const WifiPsdu >	psdu,
		const RxSignalInfo &	rxSignalInfo,
		const WifiTxVector &	txVector,
		const std::vector< bool > &	perMpduStatus
	)

protectedvirtual

This method is called when the reception of an A-MPDU including multiple MPDUs is completed.

Parameters

psdu	the received PSDU
rxSignalInfo	the info on the received signal (

See also: RxSignalInfo)

Parameters

txVector	TxVector of the received PSDU
perMpduStatus	per MPDU reception status

Reimplemented in ns3::HtFrameExchangeManager, and ns3::HeFrameExchangeManager.

Definition at line 1207 of file frame-exchange-manager.cc.

References NS_ASSERT_MSG.

Referenced by Receive().

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◆ ForwardMpduDown()

void ns3::FrameExchangeManager::ForwardMpduDown	(	Ptr< WifiMacQueueItem >	mpdu,
		WifiTxVector &	txVector
	)

protectedvirtual

Forward an MPDU down to the PHY layer.

Parameters

mpdu	the MPDU to forward down
txVector	the TXVECTOR used to transmit the MPDU

Reimplemented in ns3::QosFrameExchangeManager, and ns3::HtFrameExchangeManager.

Definition at line 441 of file frame-exchange-manager.cc.

References m_phy, NS_LOG_FUNCTION, and ns3::WifiPhy::Send().

Referenced by DoSendCtsAfterRts(), ns3::QosFrameExchangeManager::ForwardMpduDown(), SendCtsToSelf(), SendMpdu(), SendNormalAck(), and SendRts().

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◆ GetAckManager()

Ptr< WifiAckManager > ns3::FrameExchangeManager::GetAckManager ( void ) const

Get the Acknowledgment Manager used by this node.

Returns: the Acknowledgment Manager used by this node

Definition at line 124 of file frame-exchange-manager.cc.

References m_ackManager.

Referenced by ns3::HtFrameExchangeManager::SendAddBaRequest(), ns3::HtFrameExchangeManager::SendMpduFromBaManager(), ns3::QosFrameExchangeManager::TryAddMpdu(), and ns3::HtFrameExchangeManager::TryAggregateMsdu().

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◆ GetCtsToSelfDurationId()

Time ns3::FrameExchangeManager::GetCtsToSelfDurationId	(	const WifiTxVector &	ctsTxVector,
		Time	txDuration,
		Time	response
	)		const

protectedvirtual

Compute how to set the Duration/ID field of a CTS-to-self frame to send to protect a frame transmitted with the given TX vector.

Parameters

ctsTxVector	the TX vector used to send the CTS-to-self frame
txDuration	the TX duration of the data frame
response	the time taken by the response (acknowledgment) to the data frame

Returns: the computed Duration/ID value for the CTS-to-self frame

Reimplemented in ns3::QosFrameExchangeManager.

Definition at line 650 of file frame-exchange-manager.cc.

References ns3::WifiPhy::GetSifs(), m_phy, and NS_LOG_FUNCTION.

Referenced by ns3::QosFrameExchangeManager::GetCtsToSelfDurationId(), and SendCtsToSelf().

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◆ GetFirstFragmentIfNeeded()

Ptr< WifiMacQueueItem > ns3::FrameExchangeManager::GetFirstFragmentIfNeeded ( Ptr< WifiMacQueueItem > mpdu )

protected

Fragment the given MPDU if needed.

If fragmentation is needed, return the first fragment; otherwise, return the given MPDU. Note that, if fragmentation is applied, the given MPDU is dequeued from the MAC queue and the first fragment is enqueued in its place.

Parameters

mpdu	the given MPDU

Returns: the first fragment if fragmentation is needed, the given MPDU otherwise

Definition at line 317 of file frame-exchange-manager.cc.

References ns3::Packet::CreateFragment(), m_fragmentedPacket, m_mac, NS_ASSERT, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ns3::QosFrameExchangeManager::StartFrameExchange(), and StartTransmission().

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◆ GetFrameDurationId()

Time ns3::FrameExchangeManager::GetFrameDurationId	(	const WifiMacHeader &	header,
		uint32_t	size,
		const WifiTxParameters &	txParams,
		Ptr< Packet >	fragmentedPacket
	)		const

protectedvirtual

Compute how to set the Duration/ID field of a frame being transmitted with the given TX parameters.

Parameters

header	the MAC header of the frame
size	the size of the frame in bytes
txParams	the TX parameters used to send the frame
fragmentedPacket	the packet that originated the frame to transmit, in case the latter is a fragment

Returns: the computed Duration/ID value

Reimplemented in ns3::QosFrameExchangeManager.

Definition at line 528 of file frame-exchange-manager.cc.

References ns3::WifiPhy::CalculateTxDuration(), ns3::GetAckSize(), ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacHeader::GetFragmentNumber(), ns3::WifiPhy::GetPhyBand(), ns3::WifiPhy::GetSifs(), ns3::Packet::GetSize(), ns3::WifiMacHeader::GetSize(), ns3::WifiMacHeader::IsMoreFragments(), ns3::WifiTxParameters::m_acknowledgment, m_mac, m_phy, ns3::WifiTxParameters::m_txVector, ns3::Time::Min(), min, NS_ASSERT, NS_LOG_FUNCTION, and ns3::WIFI_MAC_FCS_LENGTH.

Referenced by ns3::QosFrameExchangeManager::GetFrameDurationId(), and SendMpdu().

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◆ GetNextFragment()

Ptr< WifiMacQueueItem > ns3::FrameExchangeManager::GetNextFragment ( void )

protected

Get the next fragment of the current MSDU.

Only called for fragmented MSDUs.

Returns: the next fragment of the current MSDU.

Definition at line 720 of file frame-exchange-manager.cc.

References ns3::Packet::CreateFragment(), ns3::WifiMacHeader::GetFragmentNumber(), ns3::Packet::GetSize(), m_fragmentedPacket, m_mpdu, NS_ASSERT, NS_LOG_FUNCTION, ns3::WifiMacHeader::SetFragmentNumber(), ns3::WifiMacHeader::SetMoreFragments(), and ns3::WifiMacHeader::SetNoMoreFragments().

Referenced by ReceivedNormalAck().

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◆ GetProtectionManager()

Ptr< WifiProtectionManager > ns3::FrameExchangeManager::GetProtectionManager ( void ) const

Get the Protection Manager used by this node.

Returns: the Protection Manager used by this node

Definition at line 111 of file frame-exchange-manager.cc.

References m_protectionManager.

Referenced by ns3::QosFrameExchangeManager::StartFrameExchange(), ns3::QosFrameExchangeManager::TryAddMpdu(), and ns3::HtFrameExchangeManager::TryAggregateMsdu().

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◆ GetPsduSize()

uint32_t ns3::FrameExchangeManager::GetPsduSize	(	Ptr< const WifiMacQueueItem >	mpdu,
		const WifiTxVector &	txVector
	)		const

protectedvirtual

Get the size in bytes of the given MPDU, which is to be transmitted with the given TXVECTOR.

The purpose of this method is that it can be overridden to compute the size of an S-MPDU.

Parameters

mpdu	the given MPDU
txVector	the given TXVECTOR

Returns: the size of the MPDU

Reimplemented in ns3::VhtFrameExchangeManager.

Definition at line 460 of file frame-exchange-manager.cc.

Referenced by ns3::VhtFrameExchangeManager::GetPsduSize(), and SendMpdu().

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◆ GetRtsDurationId()

Time ns3::FrameExchangeManager::GetRtsDurationId	(	const WifiTxVector &	rtsTxVector,
		Time	txDuration,
		Time	response
	)		const

protectedvirtual

Compute how to set the Duration/ID field of an RTS frame to send to protect a frame transmitted with the given TX vector.

Parameters

rtsTxVector	the TX vector used to send the RTS frame
txDuration	the TX duration of the data frame
response	the time taken by the response (acknowledgment) to the data frame

Returns: the computed Duration/ID value for the RTS frame

Reimplemented in ns3::QosFrameExchangeManager.

Definition at line 556 of file frame-exchange-manager.cc.

References ns3::WifiPhy::CalculateTxDuration(), ns3::GetCtsSize(), ns3::WifiTxVector::GetMode(), ns3::WifiPhy::GetPhyBand(), ns3::WifiPhy::GetSifs(), m_mac, m_phy, m_self, and NS_LOG_FUNCTION.

Referenced by ns3::QosFrameExchangeManager::GetRtsDurationId(), and SendRts().

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◆ GetTxDuration()

Time ns3::FrameExchangeManager::GetTxDuration	(	uint32_t	ppduPayloadSize,
		Mac48Address	receiver,
		const WifiTxParameters &	txParams
	)		const

protectedvirtual

Get the updated TX duration of the frame associated with the given TX parameters if the size of the PSDU addressed to the given receiver becomes ppduPayloadSize.

Parameters

ppduPayloadSize	the new PSDU size
receiver	the MAC address of the receiver of the PSDU
txParams	the TX parameters

Returns: the updated TX duration

Reimplemented in ns3::HeFrameExchangeManager.

Definition at line 515 of file frame-exchange-manager.cc.

References ns3::WifiPhy::CalculateTxDuration(), ns3::WifiPhy::GetPhyBand(), m_phy, and ns3::WifiTxParameters::m_txVector.

Referenced by ns3::QosFrameExchangeManager::IsWithinSizeAndTimeLimits(), and UpdateTxDuration().

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◆ GetTypeId()

TypeId ns3::FrameExchangeManager::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 44 of file frame-exchange-manager.cc.

References ns3::TypeId::SetParent().

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◆ GetWifiTxTimer()

const WifiTxTimer & ns3::FrameExchangeManager::GetWifiTxTimer ( void ) const

Get a const reference to the WifiTxTimer object.

Returns: a const reference to the WifiTxTimer object

Definition at line 217 of file frame-exchange-manager.cc.

References m_txTimer.

◆ IsPromisc()

bool ns3::FrameExchangeManager::IsPromisc ( void ) const

Check if the device is operating in promiscuous mode.

Returns: true if the device is operating in promiscuous mode, false otherwise

Definition at line 211 of file frame-exchange-manager.cc.

References m_promisc.

◆ NavResetTimeout()

void ns3::FrameExchangeManager::NavResetTimeout ( void )

protectedvirtual

Reset the NAV upon expiration of the NAV reset timer.

Definition at line 1049 of file frame-exchange-manager.cc.

References m_channelAccessManager, m_navEnd, ns3::Simulator::Now(), NS_LOG_FUNCTION, and ns3::Seconds().

Referenced by ns3::QosFrameExchangeManager::ReceiveMpdu(), and UpdateNav().

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◆ NormalAckTimeout()

void ns3::FrameExchangeManager::NormalAckTimeout	(	Ptr< WifiMacQueueItem >	mpdu,
		const WifiTxVector &	txVector
	)

protectedvirtual

Called when the Ack timeout expires.

Parameters

mpdu	the MPDU that solicited a Normal Ack response
txVector	the TXVECTOR used to transmit the frame soliciting the Normal Ack

Reimplemented in ns3::HeFrameExchangeManager.

Definition at line 775 of file frame-exchange-manager.cc.

References DequeueMpdu(), m_dcf, m_mac, m_mpdu, NotifyPacketDiscarded(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Txop::ResetCw(), RetransmitMpduAfterMissedAck(), TransmissionFailed(), and ns3::Txop::UpdateFailedCw().

Referenced by SendMpdu().

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◆ NotifyInternalCollision()

void ns3::FrameExchangeManager::NotifyInternalCollision ( Ptr< Txop > txop )

virtual

Notify that an internal collision has occurred for the given Txop.

Parameters

txop	the Txop for which an internal collision has occurred

Reimplemented in FrameExchangeManagerStub< TxopType >.

Definition at line 868 of file frame-exchange-manager.cc.

References DequeueMpdu(), ns3::Txop::GetWifiMacQueue(), ns3::Txop::IsQosTxop(), m_mac, NotifyPacketDiscarded(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::QosTxop::PeekNextMpdu(), ns3::Txop::ResetCw(), and ns3::Txop::UpdateFailedCw().

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◆ NotifyOffNow()

void ns3::FrameExchangeManager::NotifyOffNow ( void )

This method is typically invoked by the PhyListener to notify the MAC layer that the device has been put into off mode.

When the device is put into off mode, pending MAC transmissions (RTS, CTS, Data and Ack) are cancelled.

Definition at line 933 of file frame-exchange-manager.cc.

References NS_LOG_DEBUG, and Reset().

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◆ NotifyPacketDiscarded()

void ns3::FrameExchangeManager::NotifyPacketDiscarded ( Ptr< const WifiMacQueueItem > mpdu )

protectedvirtual

Pass the given MPDU, discarded because of the max retry limit was reached, to the MPDU dropped callback.

Parameters

mpdu	the discarded MPDU

Reimplemented in ns3::HtFrameExchangeManager.

Definition at line 223 of file frame-exchange-manager.cc.

References ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), m_droppedMpduCallback, and ns3::WIFI_MAC_DROP_REACHED_RETRY_LIMIT.

Referenced by DoCtsTimeout(), NormalAckTimeout(), NotifyInternalCollision(), and ns3::HtFrameExchangeManager::NotifyPacketDiscarded().

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◆ NotifyReceivedNormalAck()

void ns3::FrameExchangeManager::NotifyReceivedNormalAck ( Ptr< WifiMacQueueItem > mpdu )

protectedvirtual

Notify other components that an MPDU was acknowledged.

Parameters

mpdu	the MPDU that was acknowledged

Reimplemented in ns3::HtFrameExchangeManager.

Definition at line 1195 of file frame-exchange-manager.cc.

References ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), m_ackedMpduCallback, and NS_LOG_FUNCTION.

Referenced by ns3::HtFrameExchangeManager::NotifyReceivedNormalAck(), and ReceivedNormalAck().

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◆ NotifySleepNow()

void ns3::FrameExchangeManager::NotifySleepNow ( void )

This method is typically invoked by the PhyListener to notify the MAC layer that the device has been put into sleep mode.

When the device is put into sleep mode, pending MAC transmissions (RTS, CTS, Data and Ack) are cancelled.

Definition at line 926 of file frame-exchange-manager.cc.

References NS_LOG_DEBUG, and Reset().

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◆ NotifySwitchingStartNow()

void ns3::FrameExchangeManager::NotifySwitchingStartNow ( Time duration )

virtual

Parameters

duration switching delay duration.

This method is typically invoked by the PhyListener to notify the MAC layer that a channel switching occurred. When a channel switching occurs, pending MAC transmissions (RTS, CTS, Data and Ack) are cancelled.

Reimplemented in FrameExchangeManagerStub< TxopType >.

Definition at line 911 of file frame-exchange-manager.cc.

References ns3::WifiTxTimer::IsRunning(), m_mac, m_txTimer, NS_LOG_DEBUG, ns3::WifiTxTimer::Reschedule(), Reset(), ns3::Simulator::ScheduleNow(), and ns3::Seconds().

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◆ PreProcessFrame()

void ns3::FrameExchangeManager::PreProcessFrame	(	Ptr< const WifiPsdu >	psdu,
		const WifiTxVector &	txVector
	)

protectedvirtual

Perform actions that are possibly needed when receiving any frame, independently of whether the frame is addressed to this station (e.g., setting the NAV or the TXOP holder).

Parameters

psdu	the received PSDU
txVector	TX vector of the received PSDU

Reimplemented in ns3::QosFrameExchangeManager.

Definition at line 984 of file frame-exchange-manager.cc.

References NS_LOG_FUNCTION, and UpdateNav().

Referenced by ns3::QosFrameExchangeManager::PreProcessFrame(), and Receive().

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◆ Receive()

void ns3::FrameExchangeManager::Receive	(	Ptr< WifiPsdu >	psdu,
		RxSignalInfo	rxSignalInfo,
		WifiTxVector	txVector,
		std::vector< bool >	perMpduStatus
	)

This method is intended to be called by the PHY layer every time an MPDU is received and also when the reception of an A-MPDU is completed.

In case the PSDU contains multiple MPDUs, the perMpduStatus vector is empty when receiving the individual MPDUs.

Parameters

psdu	the received PSDU
rxSignalInfo	the info on the received signal (

See also: RxSignalInfo)

Parameters

txVector	TxVector of the received PSDU
perMpduStatus	per MPDU reception status

Definition at line 940 of file frame-exchange-manager.cc.

References ns3::WifiPsdu::begin(), EndReceiveAmpdu(), ns3::WifiPsdu::GetAddr1(), ns3::WifiMacHeader::GetAddr2(), ns3::WifiPsdu::GetHeader(), ns3::WifiPsdu::GetNMpdus(), ns3::WifiMacHeader::IsAck(), ns3::WifiMacHeader::IsCts(), ns3::WifiMacHeader::IsData(), ns3::Mac48Address::IsGroup(), m_mac, m_promisc, m_rxMiddle, m_self, NS_ASSERT, NS_LOG_FUNCTION, PreProcessFrame(), and ReceiveMpdu().

Referenced by SetWifiPhy().

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◆ ReceivedNormalAck()

void ns3::FrameExchangeManager::ReceivedNormalAck	(	Ptr< WifiMacQueueItem >	mpdu,
		const WifiTxVector &	txVector,
		const WifiTxVector &	ackTxVector,
		const RxSignalInfo &	rxInfo,
		double	snr
	)

protectedvirtual

Perform the actions needed when a Normal Ack is received.

Parameters

mpdu	the MPDU that was acknowledged
txVector	the TXVECTOR used to transmit the MPDU that was acknowledged
ackTxVector	the TXVECTOR used to transmit the Normal Ack frame
rxInfo	the info on the received signal (

See also: RxSignalInfo)

Parameters

snr	the SNR at the receiver for the MPDU that was acknowledged

Definition at line 1155 of file frame-exchange-manager.cc.

References ns3::WifiTxTimer::Cancel(), DequeueMpdu(), ns3::WifiTxVector::GetMode(), GetNextFragment(), ns3::Txop::GetWifiMacQueue(), m_channelAccessManager, m_dcf, m_mac, m_moreFragments, m_txTimer, NotifyReceivedNormalAck(), NS_LOG_DEBUG, ns3::Txop::ResetCw(), ns3::RxSignalInfo::snr, and TransmissionSucceeded().

Referenced by ReceiveMpdu().

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◆ ReceiveMpdu()

void ns3::FrameExchangeManager::ReceiveMpdu	(	Ptr< WifiMacQueueItem >	mpdu,
		RxSignalInfo	rxSignalInfo,
		const WifiTxVector &	txVector,
		bool	inAmpdu
	)

protectedvirtual

This method handles the reception of an MPDU (possibly included in an A-MPDU)

Parameters

mpdu	the received MPDU
rxSignalInfo	the info on the received signal (

See also: RxSignalInfo)

Parameters

txVector	TxVector of the received PSDU
inAmpdu	true if the MPDU is part of an A-MPDU

Reimplemented in ns3::QosFrameExchangeManager, ns3::HtFrameExchangeManager, and ns3::HeFrameExchangeManager.

Definition at line 1057 of file frame-exchange-manager.cc.

Referenced by Receive(), and ns3::QosFrameExchangeManager::ReceiveMpdu().

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◆ ReleaseSequenceNumber()

void ns3::FrameExchangeManager::ReleaseSequenceNumber ( Ptr< WifiMacQueueItem > mpdu ) const

protectedvirtual

Make the sequence number of the given MPDU available again if the MPDU has never been transmitted.

Parameters

mpdu	the given MPDU

Reimplemented in ns3::HtFrameExchangeManager.

Definition at line 853 of file frame-exchange-manager.cc.

References m_txMiddle, and NS_LOG_FUNCTION.

Referenced by DoCtsTimeout(), and ns3::HtFrameExchangeManager::ReleaseSequenceNumber().

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◆ Reset()

void ns3::FrameExchangeManager::Reset ( void )

privatevirtual

Reset this frame exchange manager.

Definition at line 68 of file frame-exchange-manager.cc.

References ns3::EventId::Cancel(), ns3::WifiTxTimer::Cancel(), ns3::WifiTxParameters::Clear(), ns3::EventId::IsRunning(), m_dcf, m_mpdu, m_navEnd, m_navResetEvent, m_txParams, m_txTimer, ns3::Simulator::Now(), and NS_LOG_FUNCTION.

Referenced by DoDispose(), NotifyOffNow(), NotifySleepNow(), and NotifySwitchingStartNow().

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◆ ResetPhy()

void ns3::FrameExchangeManager::ResetPhy ( void )

virtual

Remove WifiPhy associated with this FrameExchangeManager.

Definition at line 168 of file frame-exchange-manager.cc.

References m_phy, ns3::MakeCallback(), ns3::MakeNullCallback(), RxStartIndication(), ns3::WifiPhy::SetReceiveOkCallback(), and ns3::ObjectBase::TraceDisconnectWithoutContext().

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◆ RetransmitMpduAfterMissedAck()

void ns3::FrameExchangeManager::RetransmitMpduAfterMissedAck ( Ptr< WifiMacQueueItem > mpdu ) const

protectedvirtual

Retransmit an MPDU that was not acknowledged.

Parameters

mpdu	the MPDU to retransmit

Reimplemented in ns3::HtFrameExchangeManager.

Definition at line 803 of file frame-exchange-manager.cc.

References NS_LOG_FUNCTION.

Referenced by NormalAckTimeout(), and ns3::HtFrameExchangeManager::RetransmitMpduAfterMissedAck().

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◆ RxStartIndication()

void ns3::FrameExchangeManager::RxStartIndication	(	WifiTxVector	txVector,
		Time	psduDuration
	)

private

Parameters

txVector	the TXVECTOR decoded from PHY header.
psduDuration	the duration of the PSDU that is about to be received.

This method is typically invoked by the lower PHY layer to notify the MAC layer that the reception of a PSDU is starting. This is equivalent to the PHY-RXSTART primitive. If the reception is correct for at least one MPDU of the PSDU the Receive method will be called after psduDuration.

Definition at line 232 of file frame-exchange-manager.cc.

References ns3::Time::As(), ns3::EventId::Cancel(), ns3::EventId::IsRunning(), ns3::WifiTxTimer::IsRunning(), ns3::Time::IsStrictlyPositive(), m_channelAccessManager, m_navResetEvent, m_txTimer, ns3::NanoSeconds(), NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, PSDU_DURATION_SAFEGUARD, ns3::WifiTxTimer::Reschedule(), and ns3::Time::US.

Referenced by DoDispose(), ResetPhy(), and SetWifiPhy().

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◆ SendCtsAfterRts()

void ns3::FrameExchangeManager::SendCtsAfterRts	(	const WifiMacHeader &	rtsHdr,
		WifiMode	rtsTxMode,
		double	rtsSnr
	)

protected

Send CTS after receiving RTS.

Parameters

rtsHdr	the header of the received RTS
rtsTxMode	the TX mode used to transmit the RTS
rtsSnr	the SNR of the RTS in linear scale

Definition at line 641 of file frame-exchange-manager.cc.

References DoSendCtsAfterRts(), ns3::WifiMacHeader::GetAddr2(), m_mac, and NS_LOG_FUNCTION.

Referenced by ReceiveMpdu(), and ns3::QosFrameExchangeManager::ReceiveMpdu().

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◆ SendCtsToSelf()

void ns3::FrameExchangeManager::SendCtsToSelf ( const WifiTxParameters & txParams )

protected

Send CTS for a CTS-to-self mechanism.

Parameters

txParams the TX parameters for the data frame

Definition at line 659 of file frame-exchange-manager.cc.

References ns3::WifiPhy::CalculateTxDuration(), ns3::WifiProtection::CTS_TO_SELF, ns3::WifiCtsToSelfProtection::ctsTxVector, ForwardMpduDown(), ns3::GetCtsSize(), GetCtsToSelfDurationId(), ns3::WifiPhy::GetPhyBand(), ns3::WifiPhy::GetSifs(), ns3::WifiTxParameters::m_acknowledgment, m_phy, ns3::WifiTxParameters::m_protection, m_self, ns3::WifiTxParameters::m_txDuration, ns3::Time::Min(), NS_ASSERT, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), SendMpdu(), ns3::WifiMacHeader::SetAddr1(), ns3::WifiMacHeader::SetDsNotFrom(), ns3::WifiMacHeader::SetDsNotTo(), ns3::WifiMacHeader::SetDuration(), ns3::WifiMacHeader::SetNoMoreFragments(), ns3::WifiMacHeader::SetNoRetry(), ns3::WifiMacHeader::SetType(), and ns3::WIFI_MAC_CTL_CTS.

Referenced by SendMpduWithProtection(), and ns3::HtFrameExchangeManager::SendPsduWithProtection().

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◆ SendMpdu()

void ns3::FrameExchangeManager::SendMpdu ( void )

private

Send the current MPDU, which can be acknowledged by a Normal Ack.

Definition at line 384 of file frame-exchange-manager.cc.

References ns3::WifiNormalAck::ackTxVector, ns3::WifiPhy::CalculatePhyPreambleAndHeaderDuration(), ns3::WifiPhy::CalculateTxDuration(), DequeueMpdu(), ForwardMpduDown(), GetFrameDurationId(), ns3::WifiPhy::GetPhyBand(), GetPsduSize(), ns3::WifiPhy::GetSifs(), ns3::WifiPhy::GetSlot(), ns3::WifiTxTimer::IsRunning(), ns3::WifiTxParameters::m_acknowledgment, m_channelAccessManager, m_fragmentedPacket, m_mpdu, m_phy, m_txParams, m_txTimer, ns3::WifiTxParameters::m_txVector, ns3::WifiMacHeader::NO_ACK, ns3::WifiAcknowledgment::NONE, ns3::WifiAcknowledgment::NORMAL_ACK, NormalAckTimeout(), NS_ABORT_MSG, NS_ASSERT, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), ns3::WifiTxTimer::Set(), timeout, TransmissionSucceeded(), and ns3::WifiTxTimer::WAIT_NORMAL_ACK.

Referenced by ReceiveMpdu(), SendCtsToSelf(), and SendMpduWithProtection().

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◆ SendMpduWithProtection()

void ns3::FrameExchangeManager::SendMpduWithProtection	(	Ptr< WifiMacQueueItem >	mpdu,
		WifiTxParameters &	txParams
	)

protected

Send an MPDU with the given TX parameters (with the specified protection).

Note that txParams is moved to m_txParams and hence is left in an undefined state.

Parameters

mpdu	the MPDU to send
txParams	the TX parameters to use to transmit the MPDU

Definition at line 342 of file frame-exchange-manager.cc.

References CalculateAcknowledgmentTime(), ns3::WifiProtection::CTS_TO_SELF, ns3::WifiTxParameters::m_acknowledgment, m_mpdu, ns3::WifiTxParameters::m_protection, m_txParams, ns3::Time::Min(), ns3::WifiProtection::NONE, NS_ABORT_MSG, NS_ASSERT, NS_LOG_FUNCTION, ns3::WifiProtection::RTS_CTS, SendCtsToSelf(), SendMpdu(), SendRts(), and ns3::WifiAckManager::SetQosAckPolicy().

Referenced by ns3::HtFrameExchangeManager::SendAddBaRequest(), ns3::HtFrameExchangeManager::SendDataFrame(), ns3::QosFrameExchangeManager::StartFrameExchange(), ns3::WaveFrameExchangeManager::StartTransmission(), and StartTransmission().

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◆ SendNormalAck()

void ns3::FrameExchangeManager::SendNormalAck	(	const WifiMacHeader &	hdr,
		const WifiTxVector &	dataTxVector,
		double	dataSnr
	)

protected

Send Normal Ack.

Parameters

hdr	the header of the frame soliciting the Normal Ack
dataTxVector	the TXVECTOR used to transmit the frame soliciting the Normal Ack
dataSnr	the SNR of the frame soliciting the Normal Ack in linear scale

Definition at line 686 of file frame-exchange-manager.cc.

Referenced by ReceiveMpdu(), ns3::HtFrameExchangeManager::ReceiveMpdu(), and ns3::QosFrameExchangeManager::ReceiveMpdu().

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◆ SendRts()

void ns3::FrameExchangeManager::SendRts ( const WifiTxParameters & txParams )

protected

Send RTS to begin RTS-CTS-Data-Ack transaction.

Parameters

txParams the TX parameters for the data frame

Definition at line 569 of file frame-exchange-manager.cc.

Referenced by SendMpduWithProtection(), ns3::HeFrameExchangeManager::SendPsduMapWithProtection(), and ns3::HtFrameExchangeManager::SendPsduWithProtection().

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void ns3::FrameExchangeManager::SetPromisc ( void )

Enable promiscuous mode.

Definition at line 205 of file frame-exchange-manager.cc.

References m_promisc.

◆ SetProtectionManager()

void ns3::FrameExchangeManager::SetProtectionManager ( Ptr< WifiProtectionManager > protectionManager )

virtual

Set the Protection Manager to use.

Parameters

protectionManager the Protection Manager to use

Definition at line 104 of file frame-exchange-manager.cc.

References m_protectionManager, and NS_LOG_FUNCTION.

◆ SetWifiMac()

void ns3::FrameExchangeManager::SetWifiMac ( const Ptr< WifiMac > mac )

virtual

Set the MAC layer to use.

Parameters

mac	the MAC layer to use

Reimplemented in ns3::HtFrameExchangeManager, and ns3::HeFrameExchangeManager.

Definition at line 130 of file frame-exchange-manager.cc.

References m_mac, third::mac, and NS_LOG_FUNCTION.

Referenced by ns3::HtFrameExchangeManager::SetWifiMac().

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◆ SetWifiPhy()

void ns3::FrameExchangeManager::SetWifiPhy ( const Ptr< WifiPhy > phy )

virtual

Set the PHY layer to use.

Parameters

phy	the PHY layer to use

Definition at line 158 of file frame-exchange-manager.cc.

References m_phy, ns3::MakeCallback(), NS_LOG_FUNCTION, third::phy, Receive(), RxStartIndication(), ns3::WifiPhy::SetReceiveOkCallback(), and ns3::ObjectBase::TraceConnectWithoutContext().

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◆ StartTransmission()

bool ns3::FrameExchangeManager::StartTransmission ( Ptr< Txop > dcf )

virtual

Request the FrameExchangeManager to start a frame exchange sequence.

Parameters

dcf	the channel access function that gained channel access. It is the DCF on non-QoS stations and an EDCA on QoS stations.

Returns: true if a frame exchange sequence was started, false otherwise

Reimplemented in ns3::QosFrameExchangeManager, FrameExchangeManagerStub< TxopType >, and ns3::WaveFrameExchangeManager.

Definition at line 259 of file frame-exchange-manager.cc.

References ns3::WifiTxParameters::AddMpdu(), ns3::WifiTxTimer::Cancel(), GetFirstFragmentIfNeeded(), ns3::Txop::GetWifiMacQueue(), ns3::WifiTxTimer::IsRunning(), m_ackManager, ns3::WifiTxParameters::m_acknowledgment, m_dcf, m_mac, m_mpdu, ns3::WifiTxParameters::m_protection, m_protectionManager, m_txMiddle, m_txTimer, ns3::WifiTxParameters::m_txVector, ns3::Txop::NotifyChannelAccessed(), ns3::Txop::NotifyChannelReleased(), NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, SendMpduWithProtection(), and UpdateTxDuration().

Referenced by ns3::WaveFrameExchangeManager::StartTransmission(), ns3::QosFrameExchangeManager::StartTransmission(), and TransmissionSucceeded().

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◆ TransmissionFailed()

void ns3::FrameExchangeManager::TransmissionFailed ( void )

protectedvirtual

Take necessary actions upon a transmission failure.

A non-QoS station releases the channel when this method is called.

Reimplemented in ns3::QosFrameExchangeManager.

Definition at line 766 of file frame-exchange-manager.cc.

References m_dcf, ns3::Txop::NotifyChannelReleased(), and NS_LOG_FUNCTION.

Referenced by DoCtsTimeout(), NormalAckTimeout(), and ns3::QosFrameExchangeManager::TransmissionFailed().

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◆ TransmissionSucceeded()

void ns3::FrameExchangeManager::TransmissionSucceeded ( void )

protectedvirtual

Take necessary actions upon a transmission success.

A non-QoS station transmits the next fragment, if any, or releases the channel, otherwise.

Reimplemented in ns3::QosFrameExchangeManager, and ns3::HtFrameExchangeManager.

Definition at line 746 of file frame-exchange-manager.cc.

References ns3::WifiPhy::GetSifs(), m_dcf, m_moreFragments, m_phy, ns3::Txop::NotifyChannelReleased(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), and StartTransmission().

Referenced by ReceivedNormalAck(), SendMpdu(), and ns3::QosFrameExchangeManager::TransmissionSucceeded().

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◆ UpdateNav()

void ns3::FrameExchangeManager::UpdateNav	(	Ptr< const WifiPsdu >	psdu,
		const WifiTxVector &	txVector
	)

protectedvirtual

Update the NAV, if needed, based on the Duration/ID of the given psdu.

Parameters

psdu	the received PSDU
txVector	TxVector of the received PSDU

Definition at line 992 of file frame-exchange-manager.cc.

References ns3::WifiPhy::CalculatePhyPreambleAndHeaderDuration(), ns3::WifiPhy::CalculateTxDuration(), ns3::WifiPsdu::GetAddr1(), ns3::GetCtsSize(), ns3::WifiPsdu::GetDuration(), ns3::WifiPsdu::GetHeader(), ns3::WifiPhy::GetPhyBand(), ns3::WifiMacHeader::GetRawDuration(), ns3::WifiPhy::GetSifs(), ns3::WifiPhy::GetSlot(), ns3::WifiMacHeader::IsRts(), m_channelAccessManager, m_navEnd, m_navResetEvent, m_phy, m_self, NavResetTimeout(), ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::Simulator::Schedule().

Referenced by PreProcessFrame().

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◆ UpdateTxDuration()

void ns3::FrameExchangeManager::UpdateTxDuration	(	Mac48Address	receiver,
		WifiTxParameters &	txParams
	)		const

protected

Update the TX duration field of the given TX parameters after that the PSDU addressed to the given receiver has changed.

Parameters

receiver	the MAC address of the receiver of the PSDU
txParams	the TX parameters

Definition at line 522 of file frame-exchange-manager.cc.

References ns3::WifiTxParameters::GetSize(), GetTxDuration(), and ns3::WifiTxParameters::m_txDuration.

Referenced by StartTransmission(), ns3::QosFrameExchangeManager::TryAddMpdu(), and ns3::HtFrameExchangeManager::TryAggregateMsdu().

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◆ m_moreFragments

bool ns3::FrameExchangeManager::m_moreFragments

private

true if a fragment has to be sent after a SIFS

Definition at line 568 of file frame-exchange-manager.h.

Referenced by ReceivedNormalAck(), and TransmissionSucceeded().

◆ m_mpdu

Ptr<WifiMacQueueItem> ns3::FrameExchangeManager::m_mpdu

private

the MPDU being transmitted

Definition at line 565 of file frame-exchange-manager.h.

Referenced by CtsTimeout(), GetNextFragment(), NormalAckTimeout(), ReceiveMpdu(), Reset(), SendMpdu(), SendMpduWithProtection(), and StartTransmission().

◆ m_navEnd

Time ns3::FrameExchangeManager::m_navEnd

protected

NAV expiration time.

Definition at line 400 of file frame-exchange-manager.h.

Referenced by NavResetTimeout(), ReceiveMpdu(), ns3::QosFrameExchangeManager::ReceiveMpdu(), Reset(), and UpdateNav().

◆ m_navResetEvent

EventId ns3::FrameExchangeManager::m_navResetEvent

protected

the event to reset the NAV after an RTS

Definition at line 392 of file frame-exchange-manager.h.

Referenced by Reset(), RxStartIndication(), and UpdateNav().

WifiTxParameters ns3::FrameExchangeManager::m_txParams

private

the TX parameters for the current frame

Definition at line 566 of file frame-exchange-manager.h.

Referenced by ReceiveMpdu(), Reset(), SendMpdu(), and SendMpduWithProtection().

◆ m_txTimer

WifiTxTimer ns3::FrameExchangeManager::m_txTimer

protected

the timer set upon frame transmission

Definition at line 391 of file frame-exchange-manager.h.

Referenced by GetWifiTxTimer(), NotifySwitchingStartNow(), ReceivedNormalAck(), ReceiveMpdu(), ns3::HtFrameExchangeManager::ReceiveMpdu(), Reset(), RxStartIndication(), SendMpdu(), ns3::HtFrameExchangeManager::SendPsdu(), ns3::HeFrameExchangeManager::SendPsduMap(), SendRts(), ns3::QosFrameExchangeManager::StartTransmission(), ns3::WaveFrameExchangeManager::StartTransmission(), and StartTransmission().

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

src/wifi/model/frame-exchange-manager.h
src/wifi/model/frame-exchange-manager.cc

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ AckedMpdu

◆ DroppedMpdu

Constructor & Destructor Documentation

◆ FrameExchangeManager()

◆ ~FrameExchangeManager()

Member Function Documentation

◆ CalculateAcknowledgmentTime()

◆ CalculateProtectionTime()

◆ CtsTimeout()

◆ DequeueMpdu()

◆ DoCtsTimeout()

◆ DoDispose()

◆ DoSendCtsAfterRts()

◆ EndReceiveAmpdu()

◆ ForwardMpduDown()

◆ GetAckManager()

◆ GetCtsToSelfDurationId()

◆ GetFirstFragmentIfNeeded()

◆ GetFrameDurationId()

◆ GetNextFragment()

◆ GetProtectionManager()

◆ GetPsduSize()

◆ GetRtsDurationId()

◆ GetTxDuration()

◆ GetTypeId()

◆ GetWifiTxTimer()

◆ IsPromisc()

◆ NavResetTimeout()

◆ NormalAckTimeout()

◆ NotifyInternalCollision()

◆ NotifyOffNow()

◆ NotifyPacketDiscarded()

◆ NotifyReceivedNormalAck()

◆ NotifySleepNow()

◆ NotifySwitchingStartNow()

◆ PreProcessFrame()

◆ Receive()

◆ ReceivedNormalAck()

◆ ReceiveMpdu()

◆ ReleaseSequenceNumber()

◆ Reset()

◆ ResetPhy()

◆ RetransmitMpduAfterMissedAck()

◆ RxStartIndication()

◆ SendCtsAfterRts()

◆ SendCtsToSelf()

◆ SendMpdu()

◆ SendMpduWithProtection()

◆ SendNormalAck()

◆ SendRts()

◆ SetAckedMpduCallback()

◆ SetAckManager()

◆ SetAddress()

◆ SetBssid()

◆ SetChannelAccessManager()

◆ SetDroppedMpduCallback()

◆ SetMacRxMiddle()

◆ SetMacTxMiddle()

◆ SetPromisc()

◆ SetProtectionManager()

◆ SetWifiMac()

◆ SetWifiPhy()

◆ StartTransmission()

◆ TransmissionFailed()

◆ TransmissionSucceeded()

◆ UpdateNav()

◆ UpdateTxDuration()

Member Data Documentation

◆ m_ackedMpduCallback

◆ m_ackManager