This queue contains packets for a particular access class. More...

#include "edca-txop-n.h"

Inheritance diagram for ns3::EdcaTxopN:

Collaboration diagram for ns3::EdcaTxopN:

Classes
class	AggregationCapableTransmissionListener

class	Dcf

class	TransmissionListener

Public Types
typedef Callback< void, const WifiMacHeader & >	TxFailed
	typedef for a callback to invoke when a packet transmission was failed. More...

typedef Callback< void, const WifiMacHeader & >	TxOk
	typedef for a callback to invoke when a packet transmission was completed successfully. More...

Public Member Functions
	EdcaTxopN ()

virtual	~EdcaTxopN ()

int64_t	AssignStreams (int64_t stream)
	Assign a fixed random variable stream number to the random variables used by this model. More...

void	BaTxFailed (const WifiMacHeader &hdr)
	The packet we sent was successfully received by the receiver. More...

void	BaTxOk (const WifiMacHeader &hdr)
	The packet we sent was successfully received by the receiver. More...

void	Cancel (void)
	Cancel the transmission. More...

void	CompleteAmpduTransfer (Mac48Address recipient, uint8_t tid)

void	CompleteConfig (void)
	Complete block ACK configuration. More...

void	CompleteMpduTx (Ptr< const Packet > packet, WifiMacHeader hdr, Time tstamp)

void	DoDispose ()
	Destructor implementation. More...

void	EndTxNoAck (void)
	Event handler when a transmission that does not require an ACK has completed. More...

virtual uint32_t	GetAifsn (void) const
	Return the number of slots that make up an AIFS. More...

bool	GetAmpduExist (void)

bool	GetBaAgreementExists (Mac48Address address, uint8_t tid)

uint8_t	GetBlockAckThreshold (void) const
	Return the current threshold for block ACK mechanism. More...

Ptr< WifiMacQueue >	GetEdcaQueue () const
	Return the packet queue associated with this EdcaTxopN. More...

uint32_t	GetFragmentOffset (void)
	Calculate the offset for the current fragment. More...

Ptr< Packet >	GetFragmentPacket (WifiMacHeader *hdr)
	Get the next fragment from the packet with appropriate Wifi header for the fragment. More...

uint32_t	GetFragmentSize (void)
	Calculate the size of the current fragment. More...

virtual uint32_t	GetMaxCw (void) const
	Return the maximum congestion window size. More...

virtual uint32_t	GetMinCw (void) const
	Return the minimum congestion window size. More...

Ptr< MsduAggregator >	GetMsduAggregator (void) const

uint32_t	GetNextFragmentSize (void)
	Calculate the size of the next fragment. More...

uint16_t	GetNextSequenceNumberfor (WifiMacHeader *hdr)
	Return the next sequence number for the given header. More...

uint32_t	GetNOutstandingPacketsInBa (Mac48Address address, uint8_t tid)

uint32_t	GetNRetryNeededPackets (Mac48Address recipient, uint8_t tid) const

enum TypeOfStation	GetTypeOfStation (void) const
	Return type of station. More...

void	GotAck (double snr, WifiMode txMode)
	Event handler when an ACK is received. More...

void	GotAddBaResponse (const MgtAddBaResponseHeader *respHdr, Mac48Address recipient)

void	GotBlockAck (const CtrlBAckResponseHeader *blockAck, Mac48Address recipient, WifiMode txMode)
	Event handler when a Block ACK is received. More...

void	GotCts (double snr, WifiMode txMode)
	Event handler when a CTS is received. More...

void	GotDelBaFrame (const MgtDelBaHeader *delBaHdr, Mac48Address recipient)

bool	IsLastFragment (void) const
	Check if the current fragment is the last fragment. More...

Ptr< MacLow >	Low (void)
	Return the MacLow associated with this EdcaTxopN. More...

void	MissedAck (void)
	Event handler when an ACK is received. More...

void	MissedBlockAck (void)
	Event handler when a Block ACK timeout has occurred. More...

void	MissedCts (void)
	Event handler when a CTS timeout has occurred. More...

bool	NeedBarRetransmission (void)
	Check if Block ACK Request should be re-transmitted. More...

bool	NeedDataRetransmission (void)
	Check if DATA should be re-transmitted if ACK was missed. More...

bool	NeedFragmentation (void) const
	Check if the current packet should be fragmented. More...

bool	NeedRts (void)
	Check if the current packet should be sent with a RTS protection. More...

bool	NeedRtsRetransmission (void)
	Check if RTS should be re-transmitted if CTS was missed. More...

bool	NeedsAccess (void) const
	Check if the EDCAF requires access. More...

void	NextFragment (void)
	Continue to the next fragment. More...

void	NotifyAccessGranted (void)
	Notify the EDCAF that access has been granted. More...

void	NotifyChannelSwitching (void)
	When a channel switching occurs, enqueued packets are removed. More...

void	NotifyCollision (void)
	Notify the EDCAF that collision has occurred. More...

void	NotifyInternalCollision (void)
	Notify the EDCAF that internal collision has occurred. More...

void	NotifySleep (void)
	When sleep operation occurs, re-insert pending packet into front of the queue. More...

void	NotifyWakeUp (void)
	When wake up operation occurs, restart channel access. More...

Ptr< const Packet >	PeekNextRetransmitPacket (WifiMacHeader &header, Mac48Address recipient, uint8_t tid, Time *timestamp)

uint16_t	PeekNextSequenceNumberfor (WifiMacHeader *hdr)
	Return the next sequence number for the Traffic ID and destination, but do not pick it (i.e. More...

void	PushFront (Ptr< const Packet > packet, const WifiMacHeader &hdr)

void	Queue (Ptr< const Packet > packet, const WifiMacHeader &hdr)

void	RemoveRetransmitPacket (uint8_t tid, Mac48Address recipient, uint16_t seqnumber)
	Remove a packet after you peek in the retransmit queue and get it. More...

void	RestartAccessIfNeeded (void)
	Restart access request if needed. More...

void	SendDelbaFrame (Mac48Address addr, uint8_t tid, bool byOriginator)

void	SetAccessCategory (enum AcIndex ac)
	Set the access category of this EDCAF. More...

virtual void	SetAifsn (uint32_t aifsn)

void	SetAmpduExist (bool ampdu)

void	SetBlockAckInactivityTimeout (uint16_t timeout)

void	SetBlockAckThreshold (uint8_t threshold)
	Set threshold for block ACK mechanism. More...

void	SetLow (Ptr< MacLow > low)
	Set MacLow associated with this EdcaTxopN. More...

void	SetManager (DcfManager *manager)
	Set DcfManager this EdcaTxopN is associated to. More...

virtual void	SetMaxCw (uint32_t maxCw)
	Set the maximum congestion window size. More...

virtual void	SetMinCw (uint32_t minCw)
	Set the minimum congestion window size. More...

void	SetMsduAggregator (Ptr< MsduAggregator > aggr)

void	SetTxFailedCallback (TxFailed callback)

void	SetTxMiddle (MacTxMiddle *txMiddle)

void	SetTxOkCallback (TxOk callback)

void	SetTypeOfStation (enum TypeOfStation type)
	Set type of station with the given type. More...

void	SetWifiRemoteStationManager (Ptr< WifiRemoteStationManager > remoteManager)
	Set WifiRemoteStationsManager this EdcaTxopN is associated to. More...

void	StartAccessIfNeeded (void)
	Request access from DCF manager if needed. More...

void	StartNext (void)
	Start transmission for the next fragment. 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
	Implement the GetInstanceTypeId method defined in ObjectBase. More...

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

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

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

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

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor. More...

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

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

Static Public Member Functions inherited from ns3::Dcf
static TypeId	GetTypeId (void)

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

Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void	Cleanup (void)
	Noop. More...

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

Private Member Functions
	EdcaTxopN (const EdcaTxopN &)

void	CompleteTx (void)
	For now is typically invoked to complete transmission of a packets sent with ack policy Block Ack: the packet is buffered and dcf is reset. More...

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

Mac48Address	MapDestAddressForAggregation (const WifiMacHeader &hdr)

Mac48Address	MapSrcAddressForAggregation (const WifiMacHeader &hdr)
	This functions are used only to correctly set addresses in a-msdu subframe. More...

EdcaTxopN &	operator= (const EdcaTxopN &)

void	SendAddBaRequest (Mac48Address recipient, uint8_t tid, uint16_t startSeq, uint16_t timeout, bool immediateBAck)
	Sends an ADDBA Request to establish a block ack agreement with sta addressed by recipient for tid tid. More...

void	SendBlockAckRequest (const struct Bar &bar)
	After that all packets, for which a block ack agreement was established, have been transmitted, we have to send a block ack request. More...

bool	SetupBlockAckIfNeeded ()
	If number of packets in the queue reaches m_blockAckThreshold value, an ADDBA Request frame is sent to destination in order to setup a block ack. More...

void	VerifyBlockAck (void)
	Verifies if dequeued packet has to be transmitted with ack policy Block Ack. More...

Private Attributes
AcIndex	m_ac

Ptr< MsduAggregator >	m_aggregator

bool	m_ampduExist

BlockAckManager *	m_baManager

uint16_t	m_blockAckInactivityTimeout

AggregationCapableTransmissionListener *	m_blockAckListener

uint8_t	m_blockAckThreshold

enum BlockAckType	m_blockAckType

struct Bar	m_currentBar

WifiMacHeader	m_currentHdr

Ptr< const Packet >	m_currentPacket

Time	m_currentPacketTimestamp

Dcf *	m_dcf

uint8_t	m_fragmentNumber

Ptr< MacLow >	m_low

DcfManager *	m_manager

QosBlockedDestinations *	m_qosBlockedDestinations

Ptr< WifiMacQueue >	m_queue

RandomStream *	m_rng

Ptr< WifiRemoteStationManager >	m_stationManager

TransmissionListener *	m_transmissionListener

TxFailed	m_txFailedCallback

MacTxMiddle *	m_txMiddle

TxOk	m_txOkCallback

TypeOfStation	m_typeOfStation

Friends
class	Dcf

class	TransmissionListener

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

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

This queue contains packets for a particular access class.

possibles access classes are:

-AC_VO : voice, tid = 6,7 ^ -AC_VI : video, tid = 4,5 | -AC_BE : best-effort, tid = 0,3 | priority -AC_BK : background, tid = 1,2 |

For more details see section 9.1.3.1 in 802.11 standard.

Config Paths

ns3::EdcaTxopN is accessible through the following paths with Config::Set and Config::Connect:

"/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/VO_EdcaTxopN"
"/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/VI_EdcaTxopN"
"/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/BE_EdcaTxopN"
"/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/BK_EdcaTxopN"

Attributes

BlockAckThreshold: If number of packets in this queue reaches this value, block ack mechanism is used. If this value is 0, block ack is never used.
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:64
- Initial value: 0
- Flags: construct write read
BlockAckInactivityTimeout: Represents max time (blocks of 1024 micro seconds) allowed for block ackinactivity. If this value isn't equal to 0 a timer start after that ablock ack setup is completed and will be reset every time that a blockack frame is received. If this value is 0, block ack inactivity timeout won't be used.
- Set with class: ns3::UintegerValue
- Underlying type: uint16_t 0:65535
- Initial value: 0
- Flags: construct write
Queue: The WifiMacQueue object
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::WifiMacQueue>
- Flags: read

Attributes defined in parent class ns3::Dcf

MinCw: The minimum value of the contention window.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 15
- Flags: construct write read
MaxCw: The maximum value of the contention window.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 1023
- Flags: construct write read
Aifsn: The AIFSN: the default value conforms to simple DCA.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 2
- Flags: construct write read

No TraceSources are defined for this type.
Size of this type is 272 bytes (on a 64-bit architecture).

Definition at line 82 of file edca-txop-n.h.

Member Typedef Documentation

typedef Callback<void, const WifiMacHeader&> ns3::EdcaTxopN::TxFailed

typedef for a callback to invoke when a packet transmission was failed.

Definition at line 94 of file edca-txop-n.h.

typedef Callback<void, const WifiMacHeader&> ns3::EdcaTxopN::TxOk

typedef for a callback to invoke when a packet transmission was completed successfully.

Definition at line 89 of file edca-txop-n.h.

Constructor & Destructor Documentation

ns3::EdcaTxopN::EdcaTxopN ( )

ns3::EdcaTxopN::~EdcaTxopN ( )

virtual

Definition at line 277 of file edca-txop-n.cc.

References NS_LOG_FUNCTION.

ns3::EdcaTxopN::EdcaTxopN ( const EdcaTxopN & )

private

Member Function Documentation

int64_t ns3::EdcaTxopN::AssignStreams ( int64_t stream )

Assign a fixed random variable stream number to the random variables used by this model.

Return the number of streams (possibly zero) that have been assigned.

Parameters

stream first stream index to use

Returns: the number of stream indices assigned by this model

Definition at line 1499 of file edca-txop-n.cc.

References ns3::RandomStream::AssignStreams(), m_rng, and NS_LOG_FUNCTION.

Referenced by ns3::MeshHelper::AssignStreams(), ns3::WifiHelper::AssignStreams(), ns3::WaveHelper::AssignStreams(), and AssignWifiRandomStreams().

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void ns3::EdcaTxopN::BaTxFailed ( const WifiMacHeader & hdr )

The packet we sent was successfully received by the receiver.

Parameters

hdr	the header of the packet that we failed to sent

Definition at line 1526 of file edca-txop-n.cc.

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

Referenced by EdcaTxopN().

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void ns3::EdcaTxopN::BaTxOk ( const WifiMacHeader & hdr )

The packet we sent was successfully received by the receiver.

Parameters

hdr	the header of the packet that we successfully sent

Definition at line 1516 of file edca-txop-n.cc.

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

Referenced by EdcaTxopN().

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void ns3::EdcaTxopN::Cancel ( void )

Cancel the transmission.

Definition at line 1070 of file edca-txop-n.cc.

References NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ns3::EdcaTxopN::TransmissionListener::Cancel().

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void ns3::EdcaTxopN::CompleteAmpduTransfer	(	Mac48Address	recipient,
		uint8_t	tid
	)

Parameters

recipient	address of peer station involved in block ack mechanism.
tid	Ttraffic ID of transmitted packet.

This function resets the status of OriginatorBlockAckAgreement after the transfer of an A-MPDU with ImmediateBlockAck policy (i.e. no BAR is scheduled)

Definition at line 324 of file edca-txop-n.cc.

References ns3::BlockAckManager::CompleteAmpduExchange(), and m_baManager.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::CompleteTransfer().

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void ns3::EdcaTxopN::CompleteConfig ( void )

Complete block ACK configuration.

Definition at line 1370 of file edca-txop-n.cc.

References m_ac, m_baManager, m_blockAckListener, m_low, m_txMiddle, ns3::MakeCallback(), NS_LOG_FUNCTION, ns3::MacLow::RegisterBlockAckListenerForAc(), SendDelbaFrame(), ns3::BlockAckManager::SetBlockAckInactivityCallback(), and ns3::BlockAckManager::SetTxMiddle().

Referenced by TwoLevelAggregationTest::DoRun().

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void ns3::EdcaTxopN::CompleteMpduTx	(	Ptr< const Packet >	packet,
		WifiMacHeader	hdr,
		Time	tstamp
	)

Definition at line 1297 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::MacTxMiddle::GetNextSeqNumberByTidAndAddress(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiMacHeader::IsQosData(), m_baManager, m_txMiddle, ns3::WifiMacHeader::NORMAL_ACK, ns3::BlockAckManager::NotifyMpduTransmission(), NS_ASSERT, and ns3::BlockAckManager::StorePacket().

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::CompleteMpduTx().

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void ns3::EdcaTxopN::CompleteTx ( void )

private

For now is typically invoked to complete transmission of a packets sent with ack policy Block Ack: the packet is buffered and dcf is reset.

Definition at line 1281 of file edca-txop-n.cc.

References ns3::WifiMacHeader::BLOCK_ACK, ns3::WifiMacHeader::GetAddr1(), ns3::MacTxMiddle::GetNextSeqNumberByTidAndAddress(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiMacHeader::IsQosBlockAck(), ns3::WifiMacHeader::IsQosData(), ns3::WifiMacHeader::IsRetry(), m_baManager, m_currentHdr, m_currentPacket, m_currentPacketTimestamp, m_txMiddle, ns3::BlockAckManager::NotifyMpduTransmission(), NS_LOG_FUNCTION, and ns3::BlockAckManager::StorePacket().

Referenced by NotifyAccessGranted().

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void ns3::EdcaTxopN::DoDispose ( void )

virtual

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 overriden 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.

Definition at line 283 of file edca-txop-n.cc.

References m_aggregator, m_baManager, m_blockAckListener, m_dcf, m_low, m_qosBlockedDestinations, m_queue, m_rng, m_stationManager, m_transmissionListener, m_txMiddle, and NS_LOG_FUNCTION.

void ns3::EdcaTxopN::DoInitialize ( void )

privatevirtual

Initialize() implementation.

This method is called only once by Initialize(). If the user calls Initialize() multiple times, DoInitialize() is called only the first time.

Subclasses are expected to override this method and chain up to their parent's implementation once they are done. It is safe to call GetObject() and AggregateObject() from within this method.

Reimplemented from ns3::Object.

Definition at line 1507 of file edca-txop-n.cc.

References ns3::Object::DoInitialize(), ns3::DcfState::GetCw(), ns3::RandomStream::GetNext(), m_dcf, m_rng, NS_LOG_FUNCTION, ns3::DcfState::ResetCw(), and ns3::DcfState::StartBackoffNow().

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void ns3::EdcaTxopN::EndTxNoAck ( void )

Event handler when a transmission that does not require an ACK has completed.

Definition at line 1077 of file edca-txop-n.cc.

References ns3::DcfState::GetCw(), ns3::RandomStream::GetNext(), m_currentPacket, m_dcf, m_rng, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::DcfState::ResetCw(), StartAccessIfNeeded(), and ns3::DcfState::StartBackoffNow().

Referenced by ns3::EdcaTxopN::TransmissionListener::EndTxNoAck().

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uint32_t ns3::EdcaTxopN::GetAifsn ( void ) const

virtual

Return the number of slots that make up an AIFS.

Returns: the number of slots that make up an AIFS

Implements ns3::Dcf.

Definition at line 416 of file edca-txop-n.cc.

References ns3::DcfState::GetAifsn(), m_dcf, and NS_LOG_FUNCTION.

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bool ns3::EdcaTxopN::GetAmpduExist ( void )

Definition at line 1270 of file edca-txop-n.cc.

References m_ampduExist.

Referenced by MissedAck(), MissedBlockAck(), MissedCts(), and NotifyAccessGranted().

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bool ns3::EdcaTxopN::GetBaAgreementExists	(	Mac48Address	address,
		uint8_t	tid
	)

Parameters

recipient	address of the peer station
tid	traffic ID.

Returns: true if a block ack agreement exists, false otherwise

Checks if a block ack agreement exists with station addressed by recipient for tid tid.

Definition at line 306 of file edca-txop-n.cc.

References ns3::BlockAckManager::ExistsAgreement(), and m_baManager.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetBlockAckAgreementExists(), MissedAck(), and MissedCts().

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uint8_t ns3::EdcaTxopN::GetBlockAckThreshold ( void ) const

Return the current threshold for block ACK mechanism.

Returns: the current threshold for block ACK mechanism

Definition at line 1394 of file edca-txop-n.cc.

References m_blockAckThreshold, and NS_LOG_FUNCTION.

Referenced by GetTypeId().

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Ptr< WifiMacQueue > ns3::EdcaTxopN::GetEdcaQueue ( ) const

Return the packet queue associated with this EdcaTxopN.

Returns: WifiMacQueue

Definition at line 374 of file edca-txop-n.cc.

References m_queue, and NS_LOG_FUNCTION.

Referenced by TwoLevelAggregationTest::DoRun(), ns3::EdcaTxopN::TransmissionListener::GetQueue(), ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetQueue(), and GetTypeId().

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uint32_t ns3::EdcaTxopN::GetFragmentOffset ( void )

Calculate the offset for the current fragment.

Returns: the offset for the current fragment

Definition at line 1112 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiRemoteStationManager::GetFragmentOffset(), m_currentHdr, m_currentPacket, m_fragmentNumber, m_stationManager, and NS_LOG_FUNCTION.

Referenced by GetFragmentPacket().

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Ptr< Packet > ns3::EdcaTxopN::GetFragmentPacket ( WifiMacHeader * hdr )

Get the next fragment from the packet with appropriate Wifi header for the fragment.

Parameters

hdr

Returns: the fragment with the current fragment number

Definition at line 1129 of file edca-txop-n.cc.

References ns3::Packet::CreateFragment(), GetFragmentOffset(), GetFragmentSize(), IsLastFragment(), m_currentHdr, m_currentPacket, m_fragmentNumber, NS_LOG_FUNCTION, ns3::WifiMacHeader::SetFragmentNumber(), ns3::WifiMacHeader::SetMoreFragments(), and ns3::WifiMacHeader::SetNoMoreFragments().

Referenced by NotifyAccessGranted(), and StartNext().

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uint32_t ns3::EdcaTxopN::GetFragmentSize ( void )

Calculate the size of the current fragment.

Returns: the size of the current fragment

Definition at line 1096 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiRemoteStationManager::GetFragmentSize(), m_currentHdr, m_currentPacket, m_fragmentNumber, m_stationManager, and NS_LOG_FUNCTION.

Referenced by GetFragmentPacket().

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uint32_t ns3::EdcaTxopN::GetMaxCw ( void ) const

virtual

Return the maximum congestion window size.

Returns: the maximum congestion window size

Implements ns3::Dcf.

Definition at line 409 of file edca-txop-n.cc.

References ns3::DcfState::GetCwMax(), m_dcf, and NS_LOG_FUNCTION.

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uint32_t ns3::EdcaTxopN::GetMinCw ( void ) const

virtual

Return the minimum congestion window size.

Returns: the minimum congestion window size

Implements ns3::Dcf.

Definition at line 402 of file edca-txop-n.cc.

References ns3::DcfState::GetCwMin(), m_dcf, and NS_LOG_FUNCTION.

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Ptr< MsduAggregator > ns3::EdcaTxopN::GetMsduAggregator ( void ) const

Definition at line 958 of file edca-txop-n.cc.

References m_aggregator.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetMsduAggregator().

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uint32_t ns3::EdcaTxopN::GetNextFragmentSize ( void )

Calculate the size of the next fragment.

Returns: the size of the next fragment

Definition at line 1104 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiRemoteStationManager::GetFragmentSize(), m_currentHdr, m_currentPacket, m_fragmentNumber, m_stationManager, and NS_LOG_FUNCTION.

Referenced by NotifyAccessGranted(), and StartNext().

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uint16_t ns3::EdcaTxopN::GetNextSequenceNumberfor ( WifiMacHeader * hdr )

Return the next sequence number for the given header.

Parameters

hdr	Wi-Fi header

Returns: the next sequence number

Definition at line 450 of file edca-txop-n.cc.

References ns3::MacTxMiddle::GetNextSequenceNumberfor(), and m_txMiddle.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetNextSequenceNumberfor().

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uint32_t ns3::EdcaTxopN::GetNOutstandingPacketsInBa	(	Mac48Address	address,
		uint8_t	tid
	)

Parameters

recipient	address of peer station involved in block ack mechanism.
tid	traffic ID.

Returns: the number of packets buffered for a specified agreement

Returns number of packets buffered for a specified agreement.

Definition at line 312 of file edca-txop-n.cc.

References ns3::BlockAckManager::GetNBufferedPackets(), and m_baManager.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetNOutstandingPackets().

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uint32_t ns3::EdcaTxopN::GetNRetryNeededPackets	(	Mac48Address	recipient,
		uint8_t	tid
	)		const

Parameters

recipient	address of peer station involved in block ack mechanism.
tid	traffic ID.

Returns: the number of packets for a specific agreement that need retransmission

Returns number of packets for a specific agreement that need retransmission.

Definition at line 318 of file edca-txop-n.cc.

References ns3::BlockAckManager::GetNRetryNeededPackets(), and m_baManager.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetNRetryNeededPackets().

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TypeId ns3::EdcaTxopN::GetTypeId ( void )

static

Definition at line 222 of file edca-txop-n.cc.

References GetBlockAckThreshold(), GetEdcaQueue(), ns3::MakePointerAccessor(), ns3::MakeUintegerAccessor(), SetBlockAckInactivityTimeout(), SetBlockAckThreshold(), and ns3::TypeId::SetParent().

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enum TypeOfStation ns3::EdcaTxopN::GetTypeOfStation ( void ) const

Return type of station.

Returns: type of station

Definition at line 367 of file edca-txop-n.cc.

References m_typeOfStation, and NS_LOG_FUNCTION.

void ns3::EdcaTxopN::GotAck	(	double	snr,
		WifiMode	txMode
	)

Event handler when an ACK is received.

Parameters

snr
txMode

Definition at line 771 of file edca-txop-n.cc.

References ns3::WifiActionHeader::BLOCK_ACK, ns3::WifiActionHeader::BLOCK_ACK_DELBA, ns3::WifiActionHeader::ActionValue::blockAck, ns3::Packet::Copy(), ns3::MacLow::DestroyBlockAckAgreement(), ns3::WifiActionHeader::GetAction(), ns3::WifiMacHeader::GetAddr1(), ns3::WifiActionHeader::GetCategory(), ns3::DcfState::GetCw(), ns3::RandomStream::GetNext(), ns3::Packet::GetSize(), ns3::MgtDelBaHeader::GetTid(), ns3::WifiMacHeader::IsAction(), ns3::MgtDelBaHeader::IsByOriginator(), IsLastFragment(), ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), ns3::WifiMacHeader::IsQosAmsdu(), m_baManager, m_currentHdr, m_currentPacket, m_dcf, m_low, m_rng, m_txOkCallback, NeedFragmentation(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Packet::PeekHeader(), ns3::Packet::RemoveHeader(), ns3::DcfState::ResetCw(), RestartAccessIfNeeded(), ns3::DcfState::StartBackoffNow(), and ns3::BlockAckManager::TearDownBlockAck().

Referenced by ns3::EdcaTxopN::TransmissionListener::GotAck().

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void ns3::EdcaTxopN::GotAddBaResponse	(	const MgtAddBaResponseHeader *	respHdr,
		Mac48Address	recipient
	)

Definition at line 1208 of file edca-txop-n.cc.

References ns3::BlockAckManager::ExistsAgreementInState(), ns3::MgtAddBaResponseHeader::GetStatusCode(), ns3::MgtAddBaResponseHeader::GetTid(), ns3::StatusCode::IsSuccess(), m_baManager, ns3::BlockAckManager::NotifyAgreementUnsuccessful(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::OriginatorBlockAckAgreement::PENDING, RestartAccessIfNeeded(), and ns3::BlockAckManager::UpdateAgreement().

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void ns3::EdcaTxopN::GotBlockAck	(	const CtrlBAckResponseHeader *	blockAck,
		Mac48Address	recipient,
		WifiMode	txMode
	)

Event handler when a Block ACK is received.

Parameters

blockAck
recipient
txMode

Definition at line 1238 of file edca-txop-n.cc.

References ns3::DcfState::GetCw(), ns3::RandomStream::GetNext(), ns3::Callback< R, T1, T2, T3, T4, T5, T6, T7, T8, T9 >::IsNull(), m_baManager, m_currentHdr, m_currentPacket, m_dcf, m_rng, m_txOkCallback, ns3::BlockAckManager::NotifyGotBlockAck(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::DcfState::ResetCw(), RestartAccessIfNeeded(), and ns3::DcfState::StartBackoffNow().

Referenced by ns3::EdcaTxopN::TransmissionListener::GotBlockAck().

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void ns3::EdcaTxopN::GotCts	(	double	snr,
		WifiMode	txMode
	)

Event handler when a CTS is received.

Parameters

snr
txMode

Definition at line 658 of file edca-txop-n.cc.

References NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ns3::EdcaTxopN::TransmissionListener::GotCts().

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void ns3::EdcaTxopN::GotDelBaFrame	(	const MgtDelBaHeader *	delBaHdr,
		Mac48Address	recipient
	)

Definition at line 1230 of file edca-txop-n.cc.

References ns3::MgtDelBaHeader::GetTid(), m_baManager, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::BlockAckManager::TearDownBlockAck().

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bool ns3::EdcaTxopN::IsLastFragment ( void ) const

Check if the current fragment is the last fragment.

Returns: true if the current fragment is the last fragment, false otherwise

Definition at line 1121 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiRemoteStationManager::IsLastFragment(), m_currentHdr, m_currentPacket, m_fragmentNumber, m_stationManager, and NS_LOG_FUNCTION.

Referenced by GetFragmentPacket(), GotAck(), NotifyAccessGranted(), and StartNext().

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Ptr< MacLow > ns3::EdcaTxopN::Low ( void )

Return the MacLow associated with this EdcaTxopN.

Returns: MacLow

Definition at line 430 of file edca-txop-n.cc.

References m_low, and NS_LOG_FUNCTION.

Referenced by ns3::QosWifiMacHelper::Setup(), and StartNext().

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Mac48Address ns3::EdcaTxopN::MapDestAddressForAggregation ( const WifiMacHeader & hdr )

private

Definition at line 1173 of file edca-txop-n.cc.

References ns3::ADHOC_STA, ns3::AP, ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacHeader::GetAddr3(), m_typeOfStation, and NS_LOG_FUNCTION.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetDestAddressForAggregation(), and NotifyAccessGranted().

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Mac48Address ns3::EdcaTxopN::MapSrcAddressForAggregation ( const WifiMacHeader & hdr )

private

This functions are used only to correctly set addresses in a-msdu subframe.

If aggregating sta is a STA (in an infrastructured network): SA = Address2 DA = Address3 If aggregating sta is an AP SA = Address3 DA = Address1

Parameters

hdr

Returns: Mac48Address

Definition at line 1157 of file edca-txop-n.cc.

References ns3::ADHOC_STA, ns3::WifiMacHeader::GetAddr2(), ns3::WifiMacHeader::GetAddr3(), m_typeOfStation, NS_LOG_FUNCTION, and ns3::STA.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::GetSrcAddressForAggregation(), and NotifyAccessGranted().

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void ns3::EdcaTxopN::MissedAck ( void )

Event handler when an ACK is received.

Definition at line 817 of file edca-txop-n.cc.

Referenced by ns3::EdcaTxopN::TransmissionListener::MissedAck().

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void ns3::EdcaTxopN::MissedBlockAck ( void )

Event handler when a Block ACK timeout has occurred.

Definition at line 887 of file edca-txop-n.cc.

Referenced by ns3::EdcaTxopN::TransmissionListener::MissedBlockAck().

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void ns3::EdcaTxopN::MissedCts ( void )

Event handler when a CTS timeout has occurred.

Definition at line 665 of file edca-txop-n.cc.

Referenced by ns3::EdcaTxopN::TransmissionListener::MissedCts().

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bool ns3::EdcaTxopN::NeedBarRetransmission ( void )

Check if Block ACK Request should be re-transmitted.

Returns: true if BAR should be re-transmitted, false otherwise

Definition at line 1012 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiMacHeader::GetSequenceNumber(), ns3::CtrlBAckRequestHeader::GetStartingSequence(), ns3::CtrlBAckRequestHeader::GetTidInfo(), ns3::CtrlBAckResponseHeader::GetTidInfo(), ns3::WifiMacHeader::IsBlockAck(), ns3::WifiMacHeader::IsBlockAckReq(), ns3::WifiMacHeader::IsQosData(), m_baManager, m_currentHdr, m_currentPacket, ns3::BlockAckManager::NeedBarRetransmission(), and ns3::Packet::PeekHeader().

Referenced by MissedBlockAck().

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bool ns3::EdcaTxopN::NeedDataRetransmission ( void )

Check if DATA should be re-transmitted if ACK was missed.

Returns: true if DATA should be re-transmitted, false otherwise

Definition at line 1004 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), m_currentHdr, m_currentPacket, m_stationManager, ns3::WifiRemoteStationManager::NeedDataRetransmission(), and NS_LOG_FUNCTION.

Referenced by MissedAck().

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bool ns3::EdcaTxopN::NeedFragmentation ( void ) const

Check if the current packet should be fragmented.

Returns: true if the current packet should be fragmented, false otherwise

Definition at line 1088 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), m_currentHdr, m_currentPacket, m_stationManager, ns3::WifiRemoteStationManager::NeedFragmentation(), and NS_LOG_FUNCTION.

Referenced by GotAck(), and NotifyAccessGranted().

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bool ns3::EdcaTxopN::NeedRts ( void )

Check if the current packet should be sent with a RTS protection.

Returns: true if RTS protection should be used, false otherwise

Definition at line 988 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), m_currentHdr, m_currentPacket, m_stationManager, ns3::WifiRemoteStationManager::NeedRts(), and NS_LOG_FUNCTION.

Referenced by NotifyAccessGranted().

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bool ns3::EdcaTxopN::NeedRtsRetransmission ( void )

Check if RTS should be re-transmitted if CTS was missed.

Returns: true if RTS should be re-transmitted, false otherwise

Definition at line 996 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), m_currentHdr, m_currentPacket, m_stationManager, ns3::WifiRemoteStationManager::NeedRtsRetransmission(), and NS_LOG_FUNCTION.

Referenced by MissedCts().

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bool ns3::EdcaTxopN::NeedsAccess ( void ) const

Check if the EDCAF requires access.

Returns: true if the EDCAF requires access, false otherwise

Definition at line 444 of file edca-txop-n.cc.

References ns3::BlockAckManager::HasPackets(), m_baManager, m_currentPacket, m_queue, and NS_LOG_FUNCTION.

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void ns3::EdcaTxopN::NextFragment ( void )

Continue to the next fragment.

This method simply increments the internal variable that keep track of the current fragment number.

Definition at line 1039 of file edca-txop-n.cc.

References m_fragmentNumber, and NS_LOG_FUNCTION.

Referenced by StartNext().

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void ns3::EdcaTxopN::NotifyAccessGranted ( void )

Notify the EDCAF that access has been granted.

Definition at line 473 of file edca-txop-n.cc.

Referenced by ns3::EdcaTxopN::Dcf::DoNotifyAccessGranted().

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void ns3::EdcaTxopN::NotifyChannelSwitching ( void )

When a channel switching occurs, enqueued packets are removed.

Definition at line 733 of file edca-txop-n.cc.

References m_currentPacket, m_queue, and NS_LOG_FUNCTION.

Referenced by ns3::OcbWifiMac::CancleTx(), and ns3::EdcaTxopN::Dcf::DoNotifyChannelSwitching().

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void ns3::EdcaTxopN::NotifyCollision ( void )

Notify the EDCAF that collision has occurred.

Definition at line 650 of file edca-txop-n.cc.

References ns3::DcfState::GetCw(), ns3::RandomStream::GetNext(), m_dcf, m_rng, NS_LOG_FUNCTION, RestartAccessIfNeeded(), and ns3::DcfState::StartBackoffNow().

Referenced by ns3::EdcaTxopN::Dcf::DoNotifyCollision(), and NotifyInternalCollision().

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void ns3::EdcaTxopN::NotifyInternalCollision ( void )

Notify the EDCAF that internal collision has occurred.

Definition at line 643 of file edca-txop-n.cc.

References NotifyCollision(), and NS_LOG_FUNCTION.

Referenced by ns3::EdcaTxopN::Dcf::DoNotifyInternalCollision().

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void ns3::EdcaTxopN::NotifySleep ( void )

When sleep operation occurs, re-insert pending packet into front of the queue.

Definition at line 741 of file edca-txop-n.cc.

References m_currentHdr, m_currentPacket, m_queue, and NS_LOG_FUNCTION.

Referenced by ns3::EdcaTxopN::Dcf::DoNotifySleep().

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void ns3::EdcaTxopN::NotifyWakeUp ( void )

When wake up operation occurs, restart channel access.

Definition at line 752 of file edca-txop-n.cc.

References NS_LOG_FUNCTION, and RestartAccessIfNeeded().

Referenced by ns3::EdcaTxopN::Dcf::DoNotifyWakeUp().

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EdcaTxopN& ns3::EdcaTxopN::operator= ( const EdcaTxopN & )

private

Ptr< const Packet > ns3::EdcaTxopN::PeekNextRetransmitPacket	(	WifiMacHeader &	header,
		Mac48Address	recipient,
		uint8_t	tid,
		Time *	timestamp
	)

Definition at line 461 of file edca-txop-n.cc.

References m_baManager, and ns3::BlockAckManager::PeekNextPacket().

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::PeekNextPacketInBaQueue().

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uint16_t ns3::EdcaTxopN::PeekNextSequenceNumberfor ( WifiMacHeader * hdr )

Return the next sequence number for the Traffic ID and destination, but do not pick it (i.e.

the current sequence number remains unchanged).

Parameters

hdr	Wi-Fi header

Returns: the next sequence number

Definition at line 455 of file edca-txop-n.cc.

References m_txMiddle, and ns3::MacTxMiddle::PeekNextSequenceNumberfor().

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::PeekNextSequenceNumberfor().

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void ns3::EdcaTxopN::PushFront	(	Ptr< const Packet >	packet,
		const WifiMacHeader &	hdr
	)

Parameters

packet	packet to send
hdr	header of packet to send.

Store the packet in the front of the internal queue until it can be sent safely.

Definition at line 1196 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacTrailer::GetSerializedSize(), ns3::WifiMacHeader::GetSerializedSize(), ns3::Packet::GetSize(), m_queue, m_stationManager, NS_LOG_FUNCTION, ns3::WifiRemoteStationManager::PrepareForQueue(), and StartAccessIfNeeded().

Referenced by SendDelbaFrame().

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void ns3::EdcaTxopN::Queue	(	Ptr< const Packet >	packet,
		const WifiMacHeader &	hdr
	)

Parameters

packet	packet to send
hdr	header of packet to send.

Store the packet in the internal queue until it can be sent safely.

Definition at line 759 of file edca-txop-n.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacTrailer::GetSerializedSize(), ns3::WifiMacHeader::GetSerializedSize(), ns3::Packet::GetSize(), m_queue, m_stationManager, NS_LOG_FUNCTION, ns3::WifiRemoteStationManager::PrepareForQueue(), and StartAccessIfNeeded().

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void ns3::EdcaTxopN::RemoveRetransmitPacket	(	uint8_t	tid,
		Mac48Address	recipient,
		uint16_t	seqnumber
	)

Remove a packet after you peek in the retransmit queue and get it.

Definition at line 467 of file edca-txop-n.cc.

References m_baManager, and ns3::BlockAckManager::RemovePacket().

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::RemoveFromBaQueue().

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void ns3::EdcaTxopN::RestartAccessIfNeeded ( void )

Restart access request if needed.

Definition at line 964 of file edca-txop-n.cc.

References ns3::BlockAckManager::HasPackets(), ns3::DcfState::IsAccessRequested(), m_baManager, m_currentPacket, m_dcf, m_manager, m_queue, NS_LOG_FUNCTION, and ns3::DcfManager::RequestAccess().

Referenced by GotAck(), GotAddBaResponse(), GotBlockAck(), MissedAck(), MissedBlockAck(), MissedCts(), NotifyCollision(), and NotifyWakeUp().

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void ns3::EdcaTxopN::SendAddBaRequest	(	Mac48Address	recipient,
		uint8_t	tid,
		uint16_t	startSeq,
		uint16_t	timeout,
		bool	immediateBAck
	)

private

Sends an ADDBA Request to establish a block ack agreement with sta addressed by recipient for tid tid.

Parameters

recipient
tid
startSeq
timeout
immediateBAck

Definition at line 1401 of file edca-txop-n.cc.

Referenced by SetupBlockAckIfNeeded().

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void ns3::EdcaTxopN::SendBlockAckRequest ( const struct Bar & bar )

private

After that all packets, for which a block ack agreement was established, have been transmitted, we have to send a block ack request.

Parameters

bar

Definition at line 1326 of file edca-txop-n.cc.

References ns3::Bar::bar, ns3::BASIC_BLOCK_ACK, ns3::COMPRESSED_BLOCK_ACK, ns3::MacLowTransmissionParameters::DisableNextData(), ns3::MacLowTransmissionParameters::DisableOverrideDurationId(), ns3::MacLowTransmissionParameters::DisableRts(), ns3::MacLowTransmissionParameters::EnableAck(), ns3::MacLowTransmissionParameters::EnableBasicBlockAck(), ns3::MacLowTransmissionParameters::EnableCompressedBlockAck(), ns3::MacLow::GetAddress(), ns3::MacLow::GetBssid(), ns3::Bar::immediate, m_blockAckType, m_currentHdr, m_currentPacket, m_low, m_transmissionListener, ns3::MULTI_TID_BLOCK_ACK, NS_FATAL_ERROR, NS_LOG_FUNCTION, ns3::Bar::recipient, ns3::WifiMacHeader::SetAddr1(), ns3::WifiMacHeader::SetAddr2(), ns3::WifiMacHeader::SetAddr3(), ns3::WifiMacHeader::SetDsNotFrom(), ns3::WifiMacHeader::SetDsNotTo(), ns3::WifiMacHeader::SetNoMoreFragments(), ns3::WifiMacHeader::SetNoRetry(), ns3::WifiMacHeader::SetType(), ns3::MacLow::StartTransmission(), and ns3::WIFI_MAC_CTL_BACKREQ.

Referenced by NotifyAccessGranted().

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void ns3::EdcaTxopN::SendDelbaFrame	(	Mac48Address	addr,
		uint8_t	tid,
		bool	byOriginator
	)

Definition at line 1464 of file edca-txop-n.cc.

References ns3::Packet::AddHeader(), ns3::WifiActionHeader::BLOCK_ACK, ns3::WifiActionHeader::BLOCK_ACK_DELBA, ns3::WifiActionHeader::ActionValue::blockAck, ns3::MacLow::GetAddress(), m_low, NS_LOG_FUNCTION, PushFront(), ns3::WifiMacHeader::SetAction(), ns3::WifiActionHeader::SetAction(), ns3::WifiMacHeader::SetAddr1(), ns3::WifiMacHeader::SetAddr2(), ns3::WifiMacHeader::SetAddr3(), ns3::MgtDelBaHeader::SetByOriginator(), ns3::MgtDelBaHeader::SetByRecipient(), ns3::WifiMacHeader::SetDsNotFrom(), ns3::WifiMacHeader::SetDsNotTo(), and ns3::MgtDelBaHeader::SetTid().

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::BlockAckInactivityTimeout(), and CompleteConfig().

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void ns3::EdcaTxopN::SetAccessCategory ( enum AcIndex ac )

Set the access category of this EDCAF.

Parameters

ac

Definition at line 1150 of file edca-txop-n.cc.

References m_ac, and NS_LOG_FUNCTION.

Referenced by TwoLevelAggregationTest::DoRun().

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void ns3::EdcaTxopN::SetAifsn ( uint32_t aifsn )

virtual

Parameters

aifsn the number of slots which make up an AIFS for a specific DCF. a DIFS corresponds to an AIFSN = 2.

Calling this method after DcfManager::Add has been called is not recommended.

Implements ns3::Dcf.

Definition at line 395 of file edca-txop-n.cc.

References m_dcf, NS_LOG_FUNCTION, and ns3::DcfState::SetAifsn().

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void ns3::EdcaTxopN::SetAmpduExist ( bool ampdu )

Definition at line 1275 of file edca-txop-n.cc.

References m_ampduExist.

Referenced by ns3::EdcaTxopN::AggregationCapableTransmissionListener::SetAmpdu().

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void ns3::EdcaTxopN::SetBlockAckInactivityTimeout ( uint16_t timeout )

Definition at line 1387 of file edca-txop-n.cc.

References m_blockAckInactivityTimeout, NS_LOG_FUNCTION, and timeout.

Referenced by GetTypeId(), and ns3::QosWifiMacHelper::Setup().

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void ns3::EdcaTxopN::SetBlockAckThreshold ( uint8_t threshold )

Set threshold for block ACK mechanism.

If number of packets in the queue reaches the threshold, block ACK mechanism is used.

Parameters

threshold

Definition at line 1379 of file edca-txop-n.cc.

References m_baManager, m_blockAckThreshold, NS_LOG_FUNCTION, and ns3::BlockAckManager::SetBlockAckThreshold().

Referenced by GetTypeId(), and ns3::QosWifiMacHelper::Setup().

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void ns3::EdcaTxopN::SetLow ( Ptr< MacLow > low )

Set MacLow associated with this EdcaTxopN.

Parameters

low MacLow

Definition at line 437 of file edca-txop-n.cc.

References m_low, and NS_LOG_FUNCTION.

Referenced by TwoLevelAggregationTest::DoRun(), and ns3::RegularWifiMac::SetupEdcaQueue().

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void ns3::EdcaTxopN::SetManager ( DcfManager * manager )

Set DcfManager this EdcaTxopN is associated to.

Parameters

manager DcfManager

Definition at line 330 of file edca-txop-n.cc.

References ns3::DcfManager::Add(), m_dcf, m_manager, and NS_LOG_FUNCTION.

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void ns3::EdcaTxopN::SetMaxCw ( uint32_t maxCw )

virtual

Set the maximum congestion window size.

Parameters

maxCw the maximum congestion window size

Implements ns3::Dcf.

Definition at line 388 of file edca-txop-n.cc.

References m_dcf, NS_LOG_FUNCTION, and ns3::DcfState::SetCwMax().

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void ns3::EdcaTxopN::SetMinCw ( uint32_t minCw )

virtual

Set the minimum congestion window size.

Parameters

minCw the minimum congestion window size

Implements ns3::Dcf.

Definition at line 381 of file edca-txop-n.cc.

References m_dcf, NS_LOG_FUNCTION, and ns3::DcfState::SetCwMin().

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void ns3::EdcaTxopN::SetMsduAggregator ( Ptr< MsduAggregator > aggr )

Definition at line 1189 of file edca-txop-n.cc.

References m_aggregator, and NS_LOG_FUNCTION.

Referenced by TwoLevelAggregationTest::DoRun(), and ns3::QosWifiMacHelper::Setup().

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void ns3::EdcaTxopN::SetTxFailedCallback ( TxFailed callback )

Parameters

callback the callback to invoke when a packet transmission was completed unsuccessfully.

Definition at line 345 of file edca-txop-n.cc.

References m_txFailedCallback, and NS_LOG_FUNCTION.

void ns3::EdcaTxopN::SetTxMiddle ( MacTxMiddle * txMiddle )

Definition at line 423 of file edca-txop-n.cc.

References m_txMiddle, and NS_LOG_FUNCTION.

void ns3::EdcaTxopN::SetTxOkCallback ( TxOk callback )

Parameters

callback the callback to invoke when a packet transmission was completed successfully.

Definition at line 338 of file edca-txop-n.cc.

References m_txOkCallback, and NS_LOG_FUNCTION.

void ns3::EdcaTxopN::SetTypeOfStation ( enum TypeOfStation type )

Set type of station with the given type.

Parameters

type

Definition at line 360 of file edca-txop-n.cc.

References m_typeOfStation, and NS_LOG_FUNCTION.

bool ns3::EdcaTxopN::SetupBlockAckIfNeeded ( )

private

If number of packets in the queue reaches m_blockAckThreshold value, an ADDBA Request frame is sent to destination in order to setup a block ack.

Returns: true if we tried to set up block ACK, false otherwise

Definition at line 1307 of file edca-txop-n.cc.

References ns3::WifiMacHeader::ADDR1, ns3::WifiMacHeader::GetAddr1(), ns3::MacTxMiddle::GetNextSeqNumberByTidAndAddress(), ns3::WifiMacHeader::GetQosTid(), m_blockAckInactivityTimeout, m_blockAckThreshold, m_currentHdr, m_queue, m_txMiddle, NS_LOG_FUNCTION, and SendAddBaRequest().

Referenced by NotifyAccessGranted().

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void ns3::EdcaTxopN::SetWifiRemoteStationManager ( Ptr< WifiRemoteStationManager > remoteManager )

Set WifiRemoteStationsManager this EdcaTxopN is associated to.

Parameters

remoteManager WifiRemoteStationManager

Definition at line 352 of file edca-txop-n.cc.

References m_baManager, m_stationManager, NS_LOG_FUNCTION, and ns3::BlockAckManager::SetWifiRemoteStationManager().

Referenced by TwoLevelAggregationTest::DoRun().

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void ns3::EdcaTxopN::StartAccessIfNeeded ( void )

Request access from DCF manager if needed.

Definition at line 976 of file edca-txop-n.cc.

References ns3::BlockAckManager::HasPackets(), ns3::DcfState::IsAccessRequested(), m_baManager, m_currentPacket, m_dcf, m_manager, m_queue, NS_LOG_FUNCTION, and ns3::DcfManager::RequestAccess().

Referenced by EndTxNoAck(), PushFront(), and Queue().

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void ns3::EdcaTxopN::StartNext ( void )

Start transmission for the next fragment.

This is called for fragment only.

Definition at line 1046 of file edca-txop-n.cc.

References ns3::MacLowTransmissionParameters::DisableNextData(), ns3::MacLowTransmissionParameters::DisableOverrideDurationId(), ns3::MacLowTransmissionParameters::DisableRts(), ns3::MacLowTransmissionParameters::EnableAck(), ns3::MacLowTransmissionParameters::EnableNextData(), GetFragmentPacket(), GetNextFragmentSize(), IsLastFragment(), Low(), m_transmissionListener, NextFragment(), NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::MacLow::StartTransmission().

Referenced by ns3::EdcaTxopN::TransmissionListener::StartNext().

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void ns3::EdcaTxopN::VerifyBlockAck ( void )

private

Verifies if dequeued packet has to be transmitted with ack policy Block Ack.

This happens if an established block ack agreement exists with the receiver.

Definition at line 1254 of file edca-txop-n.cc.

References ns3::WifiMacHeader::BLOCK_ACK, ns3::OriginatorBlockAckAgreement::ESTABLISHED, ns3::BlockAckManager::ExistsAgreementInState(), ns3::WifiMacHeader::GetAddr1(), ns3::MacLow::GetMpduAggregator(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiMacHeader::GetSequenceNumber(), ns3::OriginatorBlockAckAgreement::INACTIVE, m_baManager, m_currentHdr, m_low, NS_LOG_FUNCTION, ns3::WifiMacHeader::SetQosAckPolicy(), and ns3::BlockAckManager::SwitchToBlockAckIfNeeded().

Referenced by NotifyAccessGranted().

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Friends And Related Function Documentation

friend class Dcf

friend

Definition at line 524 of file edca-txop-n.h.

Referenced by EdcaTxopN().

friend class TransmissionListener

friend

Definition at line 526 of file edca-txop-n.h.

Referenced by EdcaTxopN().

Member Data Documentation

AcIndex ns3::EdcaTxopN::m_ac

private

Definition at line 521 of file edca-txop-n.h.

Referenced by CompleteConfig(), and SetAccessCategory().

Ptr<MsduAggregator> ns3::EdcaTxopN::m_aggregator

private

Definition at line 546 of file edca-txop-n.h.

Referenced by DoDispose(), GetMsduAggregator(), NotifyAccessGranted(), and SetMsduAggregator().

bool ns3::EdcaTxopN::m_ampduExist

private

Definition at line 558 of file edca-txop-n.h.

Referenced by GetAmpduExist(), and SetAmpduExist().

BlockAckManager* ns3::EdcaTxopN::m_baManager

private

uint16_t ns3::EdcaTxopN::m_blockAckInactivityTimeout

private

Definition at line 556 of file edca-txop-n.h.

Referenced by SetBlockAckInactivityTimeout(), and SetupBlockAckIfNeeded().

AggregationCapableTransmissionListener* ns3::EdcaTxopN::m_blockAckListener

private

Definition at line 535 of file edca-txop-n.h.

Referenced by CompleteConfig(), DoDispose(), and EdcaTxopN().

uint8_t ns3::EdcaTxopN::m_blockAckThreshold

private

Definition at line 553 of file edca-txop-n.h.

Referenced by GetBlockAckThreshold(), NotifyAccessGranted(), SetBlockAckThreshold(), and SetupBlockAckIfNeeded().

enum BlockAckType ns3::EdcaTxopN::m_blockAckType

private

Definition at line 554 of file edca-txop-n.h.

Referenced by EdcaTxopN(), NotifyAccessGranted(), and SendBlockAckRequest().

struct Bar ns3::EdcaTxopN::m_currentBar

private

Definition at line 557 of file edca-txop-n.h.

Referenced by MissedAck(), MissedBlockAck(), MissedCts(), and NotifyAccessGranted().

WifiMacHeader ns3::EdcaTxopN::m_currentHdr

private

Ptr<const Packet> ns3::EdcaTxopN::m_currentPacket

private

Time ns3::EdcaTxopN::m_currentPacketTimestamp

private

Definition at line 555 of file edca-txop-n.h.

Referenced by CompleteTx(), and NotifyAccessGranted().

Dcf* ns3::EdcaTxopN::m_dcf

private

Definition at line 527 of file edca-txop-n.h.

Referenced by DoDispose(), DoInitialize(), EdcaTxopN(), EndTxNoAck(), GetAifsn(), GetMaxCw(), GetMinCw(), GotAck(), GotBlockAck(), MissedAck(), MissedBlockAck(), MissedCts(), NotifyCollision(), RestartAccessIfNeeded(), SetAifsn(), SetManager(), SetMaxCw(), SetMinCw(), and StartAccessIfNeeded().

uint8_t ns3::EdcaTxopN::m_fragmentNumber

private

Definition at line 538 of file edca-txop-n.h.

Referenced by GetFragmentOffset(), GetFragmentPacket(), GetFragmentSize(), GetNextFragmentSize(), IsLastFragment(), NextFragment(), and NotifyAccessGranted().

Ptr<MacLow> ns3::EdcaTxopN::m_low

private

Definition at line 532 of file edca-txop-n.h.

Referenced by CompleteConfig(), DoDispose(), GotAck(), Low(), MissedAck(), MissedBlockAck(), MissedCts(), NotifyAccessGranted(), SendAddBaRequest(), SendBlockAckRequest(), SendDelbaFrame(), SetLow(), and VerifyBlockAck().

DcfManager* ns3::EdcaTxopN::m_manager

private

Definition at line 528 of file edca-txop-n.h.

Referenced by RestartAccessIfNeeded(), SetManager(), and StartAccessIfNeeded().

QosBlockedDestinations* ns3::EdcaTxopN::m_qosBlockedDestinations

private

Definition at line 548 of file edca-txop-n.h.

Referenced by DoDispose(), EdcaTxopN(), and NotifyAccessGranted().

Ptr<WifiMacQueue> ns3::EdcaTxopN::m_queue

private

Definition at line 529 of file edca-txop-n.h.

Referenced by DoDispose(), EdcaTxopN(), GetEdcaQueue(), NeedsAccess(), NotifyAccessGranted(), NotifyChannelSwitching(), NotifySleep(), PushFront(), Queue(), RestartAccessIfNeeded(), SetupBlockAckIfNeeded(), and StartAccessIfNeeded().

RandomStream* ns3::EdcaTxopN::m_rng

private

Definition at line 536 of file edca-txop-n.h.

Referenced by AssignStreams(), DoDispose(), DoInitialize(), EdcaTxopN(), EndTxNoAck(), GotAck(), GotBlockAck(), MissedAck(), MissedBlockAck(), MissedCts(), and NotifyCollision().

Ptr<WifiRemoteStationManager> ns3::EdcaTxopN::m_stationManager

private

Definition at line 537 of file edca-txop-n.h.

Referenced by DoDispose(), GetFragmentOffset(), GetFragmentSize(), GetNextFragmentSize(), IsLastFragment(), MissedAck(), MissedCts(), NeedDataRetransmission(), NeedFragmentation(), NeedRts(), NeedRtsRetransmission(), NotifyAccessGranted(), PushFront(), Queue(), and SetWifiRemoteStationManager().

TransmissionListener* ns3::EdcaTxopN::m_transmissionListener

private

Definition at line 534 of file edca-txop-n.h.

Referenced by DoDispose(), EdcaTxopN(), NotifyAccessGranted(), SendAddBaRequest(), SendBlockAckRequest(), and StartNext().

TxFailed ns3::EdcaTxopN::m_txFailedCallback

private

Definition at line 531 of file edca-txop-n.h.

Referenced by BaTxFailed(), MissedAck(), MissedCts(), and SetTxFailedCallback().

MacTxMiddle* ns3::EdcaTxopN::m_txMiddle

private

Definition at line 533 of file edca-txop-n.h.

Referenced by CompleteConfig(), CompleteMpduTx(), CompleteTx(), DoDispose(), GetNextSequenceNumberfor(), MissedAck(), MissedCts(), NotifyAccessGranted(), PeekNextSequenceNumberfor(), SendAddBaRequest(), SetTxMiddle(), and SetupBlockAckIfNeeded().

TxOk ns3::EdcaTxopN::m_txOkCallback

private

Definition at line 530 of file edca-txop-n.h.

Referenced by BaTxOk(), GotAck(), GotBlockAck(), and SetTxOkCallback().

TypeOfStation ns3::EdcaTxopN::m_typeOfStation

private

Definition at line 547 of file edca-txop-n.h.

Referenced by GetTypeOfStation(), MapDestAddressForAggregation(), MapSrcAddressForAggregation(), and SetTypeOfStation().

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

src/wifi/model/edca-txop-n.h
src/wifi/model/edca-txop-n.cc

Classes

Public Types

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Config Paths

Attributes

Attributes defined in parent class ns3::Dcf

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation