The Wifi MAC high model for a non-AP STA in a BSS. More...

#include "sta-wifi-mac.h"

Inheritance diagram for ns3::StaWifiMac:

Collaboration diagram for ns3::StaWifiMac:

Classes
struct	ApInfo
	Struct to hold information regarding observed AP through active/passive scanning. More...

struct	StaLinkEntity
	Structure holding information specific to a single link. More...

Public Types
using	MgtFrameType = std::variant< MgtBeaconHeader, MgtProbeResponseHeader, MgtAssocResponseHeader >
	type of the management frames used to get info about APs More...

Public Types inherited from ns3::WifiMac
typedef Callback< void, Ptr< const Packet >, Mac48Address, Mac48Address >	ForwardUpCallback
	This type defines the callback of a higher layer that a WifiMac(-derived) object invokes to pass a packet up the stack. More...

using	OriginatorAgreementOptConstRef = std::optional< std::reference_wrapper< const OriginatorBlockAckAgreement > >
	optional const reference to OriginatorBlockAckAgreement More...

using	RecipientAgreementOptConstRef = std::optional< std::reference_wrapper< const RecipientBlockAckAgreement > >
	optional const reference to RecipientBlockAckAgreement More...

Public Member Functions
	StaWifiMac ()

	~StaWifiMac () override

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

bool	CanForwardPacketsTo (Mac48Address to) const override
	Return true if packets can be forwarded to the given destination, false otherwise. More...

void	Enqueue (Ptr< Packet > packet, Mac48Address to) override

uint16_t	GetAssociationId () const
	Return the association ID. More...

std::set< uint8_t >	GetSetupLinkIds () const
	Get the IDs of the setup links (if any). More...

bool	IsAssociated () const
	Return whether we are associated with an AP. More...

void	NotifyChannelSwitching (uint8_t linkId) override
	Notify that channel on the given link has been switched. More...

void	ScanningTimeout (const std::optional< ApInfo > &bestAp)
	This method is called after wait beacon timeout or wait probe request timeout has occurred. More...

void	SendProbeRequest ()
	Forward a probe request packet to the DCF. More...

void	SetAssocManager (Ptr< WifiAssocManager > assocManager)
	Set the Association Manager. More...

void	SetWifiPhys (const std::vector< Ptr< WifiPhy >> &phys) override

Public Member Functions inherited from ns3::WifiMac
	WifiMac ()

	WifiMac (const WifiMac &)=delete

	~WifiMac () override

virtual void	ConfigureStandard (WifiStandard standard)

virtual void	Enqueue (Ptr< Packet > packet, Mac48Address to, Mac48Address from)

Mac48Address	GetAddress () const

OriginatorAgreementOptConstRef	GetBaAgreementEstablishedAsOriginator (Mac48Address recipient, uint8_t tid) const

RecipientAgreementOptConstRef	GetBaAgreementEstablishedAsRecipient (Mac48Address originator, uint8_t tid) const

BlockAckReqType	GetBarTypeAsOriginator (const Mac48Address &recipient, uint8_t tid) const

BlockAckReqType	GetBarTypeAsRecipient (Mac48Address originator, uint8_t tid) const

BlockAckType	GetBaTypeAsOriginator (const Mac48Address &recipient, uint8_t tid) const

BlockAckType	GetBaTypeAsRecipient (Mac48Address originator, uint8_t tid) const

Mac48Address	GetBssid (uint8_t linkId) const

Ptr< ChannelAccessManager >	GetChannelAccessManager (uint8_t linkId=SINGLE_LINK_OP_ID) const
	Get the Channel Access Manager associated with the given link. More...

Ptr< WifiNetDevice >	GetDevice () const
	Return the device this PHY is associated with. More...

bool	GetDsssSupported (uint8_t linkId) const
	Return whether the device supports DSSS on the given link. More...

EhtCapabilities	GetEhtCapabilities (uint8_t linkId) const
	Return the EHT capabilities of the device for the given link. More...

Ptr< EhtConfiguration >	GetEhtConfiguration () const

bool	GetEhtSupported () const
	Return whether the device supports EHT. More...

bool	GetEhtSupported (const Mac48Address &address) const

bool	GetErpSupported (uint8_t linkId) const
	Return whether the device supports ERP on the given link. More...

ExtendedCapabilities	GetExtendedCapabilities () const
	Return the extended capabilities of the device. More...

Ptr< FrameExchangeManager >	GetFrameExchangeManager (uint8_t linkId=SINGLE_LINK_OP_ID) const
	Get the Frame Exchange Manager associated with the given link. More...

HeCapabilities	GetHeCapabilities (uint8_t linkId) const
	Return the HE capabilities of the device for the given link. More...

Ptr< HeConfiguration >	GetHeConfiguration () const

bool	GetHeSupported () const
	Return whether the device supports HE. More...

bool	GetHeSupported (const Mac48Address &address) const

HtCapabilities	GetHtCapabilities (uint8_t linkId) const
	Return the HT capabilities of the device for the given link. More...

Ptr< HtConfiguration >	GetHtConfiguration () const

bool	GetHtSupported () const
	Return whether the device supports HT. More...

bool	GetHtSupported (const Mac48Address &address) const

virtual std::optional< uint8_t >	GetLinkIdByAddress (const Mac48Address &address) const
	Get the ID of the link having the given MAC address, if any. More...

Mac48Address	GetLocalAddress (const Mac48Address &remoteAddr) const
	Get the local MAC address used to communicate with a remote STA. More...

Ptr< WifiMacQueueScheduler >	GetMacQueueScheduler () const
	Get the wifi MAC queue scheduler. More...

uint32_t	GetMaxAmpduSize (AcIndex ac) const
	Return the maximum A-MPDU size of the given Access Category. More...

uint16_t	GetMaxAmsduSize (AcIndex ac) const
	Return the maximum A-MSDU size of the given Access Category. More...

std::optional< Mac48Address >	GetMldAddress (const Mac48Address &remoteAddr) const

uint8_t	GetNLinks () const
	Get the number of links (can be greater than 1 for 11be devices only). More...

bool	GetQosSupported () const
	Return whether the device supports QoS. More...

Ptr< QosTxop >	GetQosTxop (AcIndex ac) const
	Accessor for a specified EDCA object. More...

Ptr< QosTxop >	GetQosTxop (uint8_t tid) const
	Accessor for a specified EDCA object. More...

Ssid	GetSsid () const

Ptr< Txop >	GetTxop () const
	Accessor for the Txop object. More...

virtual Ptr< WifiMacQueue >	GetTxopQueue (AcIndex ac) const
	Get the wifi MAC queue of the (Qos)Txop associated with the given AC, if such (Qos)Txop is installed, or a null pointer, otherwise. More...

TypeOfStation	GetTypeOfStation () const
	Return the type of station. More...

VhtCapabilities	GetVhtCapabilities (uint8_t linkId) const
	Return the VHT capabilities of the device for the given link. More...

Ptr< VhtConfiguration >	GetVhtConfiguration () const

bool	GetVhtSupported (const Mac48Address &address) const

bool	GetVhtSupported (uint8_t linkId) const
	Return whether the device supports VHT on the given link. More...

Ptr< WifiPhy >	GetWifiPhy (uint8_t linkId=SINGLE_LINK_OP_ID) const

Ptr< WifiRemoteStationManager >	GetWifiRemoteStationManager (uint8_t linkId=0) const

void	NotifyPromiscRx (Ptr< const Packet > packet)

void	NotifyRx (Ptr< const Packet > packet)

void	NotifyRxDrop (Ptr< const Packet > packet)

void	NotifyTx (Ptr< const Packet > packet)

void	NotifyTxDrop (Ptr< const Packet > packet)

WifiMac &	operator= (const WifiMac &)=delete

void	ResetWifiPhys ()
	Remove currently attached WifiPhy objects from this MAC. More...

virtual void	SetAddress (Mac48Address address)

void	SetBssid (Mac48Address bssid, uint8_t linkId)

void	SetCtsToSelfSupported (bool enable)
	Enable or disable CTS-to-self feature. More...

void	SetDevice (const Ptr< WifiNetDevice > device)
	Sets the device this PHY is associated with. More...

void	SetForwardUpCallback (ForwardUpCallback upCallback)

void	SetLinkDownCallback (Callback< void > linkDown)

virtual void	SetLinkUpCallback (Callback< void > linkUp)

virtual void	SetMacQueueScheduler (Ptr< WifiMacQueueScheduler > scheduler)
	Set the wifi MAC queue scheduler. More...

void	SetPromisc ()
	Sets the interface in promiscuous mode. More...

void	SetSsid (Ssid ssid)

void	SetTypeOfStation (TypeOfStation type)
	This method is invoked by a subclass to specify what type of station it is implementing. More...

void	SetWifiRemoteStationManager (Ptr< WifiRemoteStationManager > stationManager)

void	SetWifiRemoteStationManagers (const std::vector< Ptr< WifiRemoteStationManager >> &stationManagers)

virtual bool	SupportsSendFrom () const

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

	~Object () override
	Destructor. More...

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

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

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

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

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

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

bool	IsInitialized () 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 () const
	Get the reference count of the object. More...

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

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

void	Unref () 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 errors. 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 ()
	Get the type ID. More...

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

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

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

Protected Member Functions
StaLinkEntity &	GetLink (uint8_t linkId) const
	Get a reference to the link associated with the given ID. More...

Protected Member Functions inherited from ns3::WifiMac
virtual void	ConfigureContentionWindow (uint32_t cwMin, uint32_t cwMax)

virtual void	DeaggregateAmsduAndForward (Ptr< const WifiMpdu > mpdu)
	This method can be called to de-aggregate an A-MSDU and forward the constituent packets up the stack. More...

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

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

void	ForwardUp (Ptr< const Packet > packet, Mac48Address from, Mac48Address to)
	Forward the packet up to the device. More...

Ptr< QosTxop >	GetBEQueue () const
	Accessor for the AC_BE channel access function. More...

Ptr< QosTxop >	GetBKQueue () const
	Accessor for the AC_BK channel access function. More...

LinkEntity &	GetLink (uint8_t linkId) const
	Get a reference to the link associated with the given ID. More...

bool	GetShortSlotTimeSupported () const

Ptr< QosTxop >	GetVIQueue () const
	Accessor for the AC_VI channel access function. More...

Ptr< QosTxop >	GetVOQueue () const
	Accessor for the AC_VO channel access function. More...

void	SetQosSupported (bool enable)
	Enable or disable QoS support for the device. More...

void	SetShortSlotTimeSupported (bool enable)
	Enable or disable short slot time feature. More...

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

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

Private Types
using	LinkSetupCallback = void(*)(uint8_t, Mac48Address)
	TracedCallback signature for link setup completed/canceled events. More...

enum	MacState { ASSOCIATED , SCANNING , WAIT_ASSOC_RESP , UNASSOCIATED , REFUSED }
	The current MAC state of the STA. More...

Private Member Functions
void	AssocRequestTimeout ()
	This method is called after the association timeout occurred. More...

bool	CheckSupportedRates (std::variant< MgtBeaconHeader, MgtProbeResponseHeader > frame, uint8_t linkId)
	Determine whether the supported rates indicated in a given Beacon frame or Probe Response frame fit with the configured membership selector. More...

std::unique_ptr< LinkEntity >	CreateLinkEntity () const override
	Create a LinkEntity object. More...

void	Disassociated (uint8_t linkId)
	Check if any enabled link remains after the given link is disabled (because, e.g., the maximum number of beacons is missed or the channel is switched). More...

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

Mac48Address	DoGetLocalAddress (const Mac48Address &remoteAddr) const override
	This method is called if this device is an MLD to determine the MAC address of the affiliated STA used to communicate with the single link device having the given MAC address. More...

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

bool	GetActiveProbing () const
	Return whether active probing is enabled. More...

std::variant< MgtAssocRequestHeader, MgtReassocRequestHeader >	GetAssociationRequest (bool isReassoc, uint8_t linkId) const
	Get the (Re)Association Request frame to send on a given link. More...

CapabilityInformation	GetCapabilities (uint8_t linkId) const
	Return the Capability information for the given link. More...

WifiScanParams::Channel	GetCurrentChannel (uint8_t linkId) const
	Get the current primary20 channel used on the given link as a (channel number, PHY band) pair. More...

MultiLinkElement	GetMultiLinkElement (bool isReassoc, uint8_t linkId) const
	Return the Multi-Link Element to include in the management frames transmitted on the given link. More...

SupportedRates	GetSupportedRates (uint8_t linkId) const
	Return an instance of SupportedRates that contains all rates that we support including HT rates. More...

bool	IsWaitAssocResp () const
	Return whether we are waiting for an association response from an AP. More...

void	MissedBeacons (uint8_t linkId)
	This method is called after we have not received a beacon from the AP on the given link. More...

void	PhyCapabilitiesChanged ()
	Indicate that PHY capabilities have changed. More...

void	Receive (Ptr< const WifiMpdu > mpdu, uint8_t linkId) override
	This method acts as the MacRxMiddle receive callback and is invoked to notify us that a frame has been received on the given link. More...

void	ReceiveAssocResp (Ptr< const WifiMpdu > mpdu, uint8_t linkId)
	Process the (Re)Association Response frame received on the given link. More...

void	ReceiveBeacon (Ptr< const WifiMpdu > mpdu, uint8_t linkId)
	Process the Beacon frame received on the given link. More...

void	ReceiveProbeResp (Ptr< const WifiMpdu > mpdu, uint8_t linkId)
	Process the Probe Response frame received on the given link. More...

void	RestartBeaconWatchdog (Time delay, uint8_t linkId)
	Restarts the beacon timer for the given link. More...

void	SendAssociationRequest (bool isReassoc)
	Forward an association or reassociation request packet to the DCF. More...

void	SetActiveProbing (bool enable)
	Enable or disable active probing. More...

void	SetEdcaParameters (AcIndex ac, uint32_t cwMin, uint32_t cwMax, uint8_t aifsn, Time txopLimit)
	Set the EDCA parameters. More...

void	SetMuEdcaParameters (AcIndex ac, uint16_t cwMin, uint16_t cwMax, uint8_t aifsn, Time muEdcaTimer)
	Set the MU EDCA parameters. More...

void	SetState (MacState value)
	Set the current MAC state. More...

void	StartScanning ()
	Start the scanning process which trigger active or passive scanning based on the active probing flag. More...

void	TryToEnsureAssociated ()
	Try to ensure that we are associated with an AP by taking an appropriate action depending on the current association status. More...

void	UpdateApInfo (const MgtFrameType &frame, const Mac48Address &apAddr, const Mac48Address &bssid, uint8_t linkId)
	Update associated AP's information from the given management frame (Beacon, Probe Response or Association Response). More...

Private Attributes
bool	m_activeProbing
	active probing More...

uint16_t	m_aid
	Association AID. More...

TracedCallback< Mac48Address >	m_assocLogger
	association logger More...

Ptr< WifiAssocManager >	m_assocManager
	Association Manager. More...

EventId	m_assocRequestEvent
	association request event More...

Time	m_assocRequestTimeout
	association request timeout More...

TracedCallback< Time >	m_beaconArrival
	beacon arrival logger More...

TracedCallback< ApInfo >	m_beaconInfo
	beacon info logger More...

TracedCallback< Mac48Address >	m_deAssocLogger
	disassociation logger More...

uint32_t	m_maxMissedBeacons
	maximum missed beacons More...

Ptr< RandomVariableStream >	m_probeDelay
	RandomVariable used to randomize the time of the first Probe Response on each channel. More...

Time	m_probeRequestTimeout
	probe request timeout More...

TracedCallback< uint8_t, Mac48Address >	m_setupCanceled
	link setup canceled logger More...

TracedCallback< uint8_t, Mac48Address >	m_setupCompleted
	link setup completed logger More...

MacState	m_state
	MAC state. More...

Time	m_waitBeaconTimeout
	wait beacon timeout More...

Friends
class	::AmpduAggregationTest
	Allow test cases to access private members. More...

class	::HeAggregationTest
	Allow test cases to access private members. More...

class	::MultiLinkOperationsTestBase
	Allow test cases to access private members. More...

class	::TwoLevelAggregationTest
	Allow test cases to access private members. More...

Additional Inherited Members
Protected Attributes inherited from ns3::WifiMac
Callback< void >	m_linkDown
	Callback when a link is down. More...

Callback< void >	m_linkUp
	Callback when a link is up. More...

Ptr< MacRxMiddle >	m_rxMiddle
	RX middle (defragmentation etc.) More...

Ptr< WifiMacQueueScheduler >	m_scheduler
	wifi MAC queue scheduler More...

Ptr< MacTxMiddle >	m_txMiddle
	TX middle (aggregation etc.) More...

Ptr< Txop >	m_txop
	TXOP used for transmission of frames to non-QoS peers. More...

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

Detailed Description

The Wifi MAC high model for a non-AP STA in a BSS.

The state machine is as follows:

┌───────────┐            ┌────────────────┐                           ┌─────────────┐
│   Start   │      ┌─────┤   Associated   ◄───────────────────┐    ┌──►   Refused   │
└─┬─────────┘      │     └────────────────┘                   │    │  └─────────────┘
  │                │                                          │    │
  │                │ ┌─────────────────────────────────────┐  │    │
  │                │ │                                     │  │    │
  │  ┌─────────────▼─▼──┐       ┌──────────────┐       ┌───┴──▼────┴───────────────────┐
  └──►   Unassociated   ├───────►   Scanning   ├───────►   Wait AssociationiResponse   │
     └──────────────────┘       └──────┬──▲────┘       └───────────────┬──▲────────────┘
                                       │  │                            │  │
                                       │  │                            │  │
                                       └──┘                            └──┘

Notes:

The state 'Start' is not included in MacState and only used for illustration purpose.
The Unassociated state is a transient state before STA starts the scanning procedure which moves it into the Scanning state.
In Scanning, STA is gathering beacon or probe response frames from APs, resulted in a list of candidate AP. After the timeout, it then tries to associate to the best AP, which is indicated by the Association Manager. STA will restart the scanning procedure if SetActiveProbing() called.
In the case when AP responded to STA's association request with a refusal, STA will try to associate to the next best AP until the list of candidate AP is exhausted which sends STA to Refused state.
- Note that this behavior is not currently tested since ns-3 does not implement association refusal at present.
The transition from Wait Association Response to Unassociated occurs if an association request fails without explicit refusal (i.e., the AP fails to respond).
The transition from Associated to Wait Association Response occurs when STA's PHY capabilities changed. In this state, STA tries to reassociate with the previously associated AP.
The transition from Associated to Unassociated occurs if the number of missed beacons exceeds the threshold.

Config Paths

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

"/NodeList/[i]/DeviceList/[i]/$ns3::WifiNetDevice/Mac/$ns3::StaWifiMac"

Attributes

ActiveProbing: If true, we send probe requests. If false, we don't.NOTE: if more than one STA in your simulation is using active probing, you should enable it at a different simulation time for each STA, otherwise all the STAs will start sending probes at the same time resulting in collisions. See bug 1060 for more info.
- Set with class: ns3::BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: constructwriteread
AssocRequestTimeout: The interval between two consecutive association request attempts.
- Set with class: ns3::TimeValue
- Underlying type: Time +9.22337e+18ns:+9.22337e+18ns
- Initial value: +5e+08ns
- Flags: constructwriteread
MaxMissedBeacons: Number of beacons which much be consecutively missed before we attempt to restart association.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 10
- Flags: constructwriteread
ProbeDelay: Delay (in microseconds) to be used prior to transmitting a Probe frame during active scanning.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::RandomVariableStream>
- Initial value: ns3::UniformRandomVariable[Min=50.0|Max=250.0]
- Flags: constructwriteread
ProbeRequestTimeout: The duration to actively probe the channel.
- Set with class: ns3::TimeValue
- Underlying type: Time +9.22337e+18ns:+9.22337e+18ns
- Initial value: +5e+07ns
- Flags: constructwriteread
WaitBeaconTimeout: The duration to dwell on a channel while passively scanning for beacon
- Set with class: ns3::TimeValue
- Underlying type: Time +9.22337e+18ns:+9.22337e+18ns
- Initial value: +1.2e+08ns
- Flags: constructwriteread

Attributes defined in parent class ns3::WifiMac

BE_BlockAckInactivityTimeout: Represents max time (blocks of 1024 microseconds) allowed for block ackinactivity for AC_BE. 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 block ackframe 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: constructwrite
BE_BlockAckThreshold: If number of packets in BE queue reaches this value, block ack mechanism is used. If this value is 0, block ack is never used.When A-MPDU is enabled, block ack mechanism is used regardless of this value.
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:64
- Initial value: 0
- Flags: constructwrite
BE_MaxAmpduSize: Maximum length in bytes of an A-MPDU for AC_BE access class (capped to 65535 for HT PPDUs, 1048575 for VHT PPDUs, 6500631 for HE PPDUs and 15523200 for EHT PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:15523200
- Initial value: 65535
- Flags: constructwriteread
BE_MaxAmsduSize: Maximum length in bytes of an A-MSDU for AC_BE access class (capped to 7935 for HT PPDUs and 11398 for VHT/HE/EHT PPDUs). Value 0 means A-MSDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint16_t 0:11398
- Initial value: 0
- Flags: constructwriteread
BE_Txop: Queue that manages packets belonging to AC_BE access class.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::QosTxop>
- Flags: read
BK_BlockAckInactivityTimeout: Represents max time (blocks of 1024 microseconds) allowed for block ackinactivity for AC_BK. 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 block ackframe 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: constructwrite
BK_BlockAckThreshold: If number of packets in BK queue reaches this value, block ack mechanism is used. If this value is 0, block ack is never used.When A-MPDU is enabled, block ack mechanism is used regardless of this value.
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:64
- Initial value: 0
- Flags: constructwrite
BK_MaxAmpduSize: Maximum length in bytes of an A-MPDU for AC_BK access class (capped to 65535 for HT PPDUs, 1048575 for VHT PPDUs, 6500631 for HE PPDUs and 15523200 for EHT PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:15523200
- Initial value: 0
- Flags: constructwriteread
BK_MaxAmsduSize: Maximum length in bytes of an A-MSDU for AC_BK access class (capped to 7935 for HT PPDUs and 11398 for VHT/HE/EHT PPDUs). Value 0 means A-MSDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint16_t 0:11398
- Initial value: 0
- Flags: constructwriteread
BK_Txop: Queue that manages packets belonging to AC_BK access class.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::QosTxop>
- Flags: read
CtsToSelfSupported: Use CTS to Self when using a rate that is not in the basic rate set.
- Set with class: ns3::BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: constructwrite
QosSupported: This Boolean attribute is set to enable 802.11e/WMM-style QoS support at this STA.
- Set with class: ns3::BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: constructread
ShortSlotTimeSupported: Whether or not short slot time is supported (only used by ERP APs or STAs).
- Set with class: ns3::BooleanValue
- Underlying type: bool
- Initial value: true
- Flags: constructwriteread
Ssid: The ssid we want to belong to.
- Set with class: ns3::SsidValue
- Underlying type: Ssid
- Initial value: default
- Flags: constructwriteread
Txop: The Txop object.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::Txop>
- Flags: read
VI_BlockAckInactivityTimeout: Represents max time (blocks of 1024 microseconds) allowed for block ackinactivity for AC_VI. 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 block ackframe 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: constructwrite
VI_BlockAckThreshold: If number of packets in VI queue reaches this value, block ack mechanism is used. If this value is 0, block ack is never used.When A-MPDU is enabled, block ack mechanism is used regardless of this value.
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:64
- Initial value: 0
- Flags: constructwrite
VI_MaxAmpduSize: Maximum length in bytes of an A-MPDU for AC_VI access class (capped to 65535 for HT PPDUs, 1048575 for VHT PPDUs, 6500631 for HE PPDUs and 15523200 for EHT PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:15523200
- Initial value: 65535
- Flags: constructwriteread
VI_MaxAmsduSize: Maximum length in bytes of an A-MSDU for AC_VI access class (capped to 7935 for HT PPDUs and 11398 for VHT/HE/EHT PPDUs). Value 0 means A-MSDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint16_t 0:11398
- Initial value: 0
- Flags: constructwriteread
VI_Txop: Queue that manages packets belonging to AC_VI access class.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::QosTxop>
- Flags: read
VO_BlockAckInactivityTimeout: Represents max time (blocks of 1024 microseconds) allowed for block ackinactivity for AC_VO. 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 block ackframe 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: constructwrite
VO_BlockAckThreshold: If number of packets in VO queue reaches this value, block ack mechanism is used. If this value is 0, block ack is never used.When A-MPDU is enabled, block ack mechanism is used regardless of this value.
- Set with class: ns3::UintegerValue
- Underlying type: uint8_t 0:64
- Initial value: 0
- Flags: constructwrite
VO_MaxAmpduSize: Maximum length in bytes of an A-MPDU for AC_VO access class (capped to 65535 for HT PPDUs, 1048575 for VHT PPDUs, 6500631 for HE PPDUs and 15523200 for EHT PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:15523200
- Initial value: 0
- Flags: constructwriteread
VO_MaxAmsduSize: Maximum length in bytes of an A-MSDU for AC_VO access class (capped to 7935 for HT PPDUs and 11398 for VHT/HE/EHT PPDUs). Value 0 means A-MSDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint16_t 0:11398
- Initial value: 0
- Flags: constructwriteread
VO_Txop: Queue that manages packets belonging to AC_VO access class.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::QosTxop>
- Flags: read

TraceSources

Assoc: Associated with an access point. If this is an MLD that associated with an AP MLD, the AP MLD address is provided.
Callback signature: ns3::Mac48Address::TracedCallback
BeaconArrival: Time of beacons arrival from associated AP
Callback signature: ns3::Time::TracedCallback
DeAssoc: Association with an access point lost. If this is an MLD that disassociated with an AP MLD, the AP MLD address is provided.
Callback signature: ns3::Mac48Address::TracedCallback
LinkSetupCanceled: A link setup in the context of ML setup with an AP MLD was torn down. Provides ID of the setup link and AP MAC address
Callback signature: ns3::StaWifiMac::LinkSetupCallback
LinkSetupCompleted: A link was setup in the context of ML setup with an AP MLD. Provides ID of the setup link and AP MAC address
Callback signature: ns3::StaWifiMac::LinkSetupCallback
ReceivedBeaconInfo: Information about every received Beacon frame
Callback signature: ns3::ApInfo::TracedCallback

TraceSources defined in parent class ns3::WifiMac

AckedMpdu: An MPDU that was successfully acknowledged, via either a Normal Ack or a Block Ack.
Callback signature: ns3::WifiMpdu::TracedCallback
DroppedMpdu: An MPDU that was dropped for the given reason (see WifiMacDropReason).
Callback signature: ns3::WifiMac::DroppedMpduCallback
MacPromiscRx: A packet has been received by this device, has been passed up from the physical layer and is being forwarded up the local protocol stack. This is a promiscuous trace.
Callback signature: ns3::Packet::TracedCallback
MacRx: A packet has been received by this device, has been passed up from the physical layer and is being forwarded up the local protocol stack. This is a non-promiscuous trace.
Callback signature: ns3::Packet::TracedCallback
MacRxDrop: A packet has been dropped in the MAC layer after it has been passed up from the physical layer.
Callback signature: ns3::Packet::TracedCallback
MacTx: A packet has been received from higher layers and is being processed in preparation for queueing for transmission.
Callback signature: ns3::Packet::TracedCallback
MacTxDrop: A packet has been dropped in the MAC layer before being queued for transmission. This trace source is fired, e.g., when an AP's MAC receives from the upper layer a packet destined to a station that is not associated with the AP or a STA's MAC receives a packet from the upper layer while it is not associated with any AP.
Callback signature: ns3::Packet::TracedCallback
MpduResponseTimeout: An MPDU whose response was not received before the timeout, along with an identifier of the type of timeout (see WifiTxTimer::Reason) and the TXVECTOR used to transmit the MPDU. This trace source is fired when a CTS is missing after an RTS, when all CTS frames are missing after an MU-RTS, or when a Normal Ack is missing after an MPDU or after a DL MU PPDU acknowledged in SU format.
Callback signature: ns3::WifiMac::MpduResponseTimeoutCallback
NAckedMpdu: An MPDU that was negatively acknowledged via a Block Ack.
Callback signature: ns3::WifiMpdu::TracedCallback
PsduMapResponseTimeout: A PSDU map for which not all the responses were received before the timeout, along with an identifier of the type of timeout (see WifiTxTimer::Reason), the set of MAC addresses of the stations that did not respond and the total number of stations that had to respond. This trace source is fired when not all the addressed stations responded to an MU-BAR Trigger frame (either sent as a SU frame or aggregated to PSDUs in the DL MU PPDU), a Basic Trigger Frame or a BSRP Trigger Frame.
Callback signature: ns3::WifiMac::PsduMapResponseTimeoutCallback
PsduResponseTimeout: A PSDU whose response was not received before the timeout, along with an identifier of the type of timeout (see WifiTxTimer::Reason) and the TXVECTOR used to transmit the PSDU. This trace source is fired when a BlockAck is missing after an A-MPDU, a BlockAckReq (possibly in the context of the acknowledgment of a DL MU PPDU in SU format) or a TB PPDU (in the latter case the missing BlockAck is a Multi-STA BlockAck).
Callback signature: ns3::WifiMac::PsduResponseTimeoutCallback
TxErrHeader: The header of unsuccessfuly transmitted packet.
Callback signature: ns3::WifiMacHeader::TracedCallback
TxOkHeader: The header of successfully transmitted packet.
Callback signature: ns3::WifiMacHeader::TracedCallback

Size of this type is 792 bytes (on a 64-bit architecture).

Definition at line 123 of file sta-wifi-mac.h.

Member Typedef Documentation

◆ LinkSetupCallback

using ns3::StaWifiMac::LinkSetupCallback = void (*)(uint8_t , Mac48Address )

private

TracedCallback signature for link setup completed/canceled events.

Definition at line 505 of file sta-wifi-mac.h.

◆ MgtFrameType

using ns3::StaWifiMac::MgtFrameType = std::variant<MgtBeaconHeader, MgtProbeResponseHeader, MgtAssocResponseHeader>

type of the management frames used to get info about APs

Definition at line 136 of file sta-wifi-mac.h.

Member Enumeration Documentation

◆ MacState

enum ns3::StaWifiMac::MacState

private

The current MAC state of the STA.

Enumerator
ASSOCIATED
SCANNING
WAIT_ASSOC_RESP
UNASSOCIATED
REFUSED

Definition at line 268 of file sta-wifi-mac.h.

Constructor & Destructor Documentation

◆ StaWifiMac()

ns3::StaWifiMac::StaWifiMac ( )

Definition at line 128 of file sta-wifi-mac.cc.

References NS_LOG_FUNCTION, ns3::WifiMac::SetTypeOfStation(), and ns3::STA.

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◆ ~StaWifiMac()

ns3::StaWifiMac::~StaWifiMac ( )

override

Definition at line 159 of file sta-wifi-mac.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ AssignStreams()

int64_t ns3::StaWifiMac::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 182 of file sta-wifi-mac.cc.

References m_probeDelay, NS_LOG_FUNCTION, and ns3::RandomVariableStream::SetStream().

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◆ AssocRequestTimeout()

void ns3::StaWifiMac::AssocRequestTimeout ( )

private

This method is called after the association timeout occurred.

We switch the state to WAIT_ASSOC_RESP and re-send an association request.

Definition at line 609 of file sta-wifi-mac.cc.

References NS_LOG_FUNCTION, SendAssociationRequest(), SetState(), and WAIT_ASSOC_RESP.

Referenced by SendAssociationRequest().

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◆ CanForwardPacketsTo()

bool ns3::StaWifiMac::CanForwardPacketsTo ( Mac48Address to ) const

overridevirtual

Return true if packets can be forwarded to the given destination, false otherwise.

Parameters

to	the address to which the packet should be sent

Returns: whether packets can be forwarded to the given destination

Implements ns3::WifiMac.

Definition at line 746 of file sta-wifi-mac.cc.

References IsAssociated().

Referenced by Enqueue().

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◆ CheckSupportedRates()

bool ns3::StaWifiMac::CheckSupportedRates	(	std::variant< MgtBeaconHeader, MgtProbeResponseHeader >	frame,
		uint8_t	linkId
	)

private

Determine whether the supported rates indicated in a given Beacon frame or Probe Response frame fit with the configured membership selector.

Parameters

frame	the given Beacon or Probe Response frame
linkId	ID of the link the mgt frame was received over

Returns: whether the the supported rates indicated in the given management frame fit with the configured membership selector

Definition at line 1164 of file sta-wifi-mac.cc.

References ns3::WifiPhy::GetBssMembershipSelectorList(), ns3::WifiMac::GetWifiPhy(), ns3::SupportedRates::IsBssMembershipSelectorRate(), NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by ReceiveBeacon(), and ReceiveProbeResp().

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◆ CreateLinkEntity()

std::unique_ptr< WifiMac::LinkEntity > ns3::StaWifiMac::CreateLinkEntity ( ) const

overrideprivatevirtual

Create a LinkEntity object.

Returns: a unique pointer to the created LinkEntity object

Reimplemented from ns3::WifiMac.

Definition at line 170 of file sta-wifi-mac.cc.

◆ Disassociated()

void ns3::StaWifiMac::Disassociated ( uint8_t linkId )

private

Check if any enabled link remains after the given link is disabled (because, e.g., the maximum number of beacons is missed or the channel is switched).

If no enabled link remains, proceed with disassociation.

Parameters

linkId the ID of the given link

Definition at line 646 of file sta-wifi-mac.cc.

References ns3::StaWifiMac::StaLinkEntity::apLinkId, ns3::WifiMac::GetBssid(), GetLink(), ns3::WifiRemoteStationManager::GetMldAddress(), ns3::WifiMac::GetNLinks(), ns3::WifiMac::GetWifiRemoteStationManager(), m_aid, m_deAssocLogger, m_setupCanceled, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::WifiMac::LinkEntity::phy, ns3::WifiPhy::ResumeFromOff(), SetState(), TryToEnsureAssociated(), and UNASSOCIATED.

Referenced by MissedBeacons(), and NotifyChannelSwitching().

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◆ DoDispose()

void ns3::StaWifiMac::DoDispose ( )

overrideprivatevirtual

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.

Definition at line 148 of file sta-wifi-mac.cc.

References ns3::WifiMac::DoDispose(), m_assocManager, and NS_LOG_FUNCTION.

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◆ DoGetLocalAddress()

Mac48Address ns3::StaWifiMac::DoGetLocalAddress ( const Mac48Address & remoteAddr ) const

overrideprivatevirtual

This method is called if this device is an MLD to determine the MAC address of the affiliated STA used to communicate with the single link device having the given MAC address.

This method is overridden because its implementation depends on the type of station.

Parameters

remoteAddr the MAC address of the remote single link device

Returns: the MAC address of the affiliated STA used to communicate with the remote device

Reimplemented from ns3::WifiMac.

Definition at line 737 of file sta-wifi-mac.cc.

References ns3::WifiMac::GetFrameExchangeManager(), GetSetupLinkIds(), and NS_ASSERT_MSG.

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◆ DoInitialize()

void ns3::StaWifiMac::DoInitialize ( )

overrideprivatevirtual

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 141 of file sta-wifi-mac.cc.

References NS_LOG_FUNCTION, and StartScanning().

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◆ Enqueue()

void ns3::StaWifiMac::Enqueue	(	Ptr< Packet >	packet,
		Mac48Address	to
	)

overridevirtual

Parameters

packet	the packet to send.
to	the address to which the packet should be sent.

The packet should be enqueued in a TX queue, and should be dequeued as soon as the channel access function determines that access is granted to this MAC.

Implements ns3::WifiMac.

Definition at line 752 of file sta-wifi-mac.cc.

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◆ GetActiveProbing()

bool ns3::StaWifiMac::GetActiveProbing ( ) const

private

Return whether active probing is enabled.

Returns: true if active probing is enabled, false otherwise

Definition at line 217 of file sta-wifi-mac.cc.

References m_activeProbing.

Referenced by GetTypeId().

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◆ GetAssociationId()

uint16_t ns3::StaWifiMac::GetAssociationId ( ) const

Return the association ID.

Returns: the association ID

Definition at line 198 of file sta-wifi-mac.cc.

References IsAssociated(), m_aid, and NS_ASSERT_MSG.

Referenced by ns3::WifiRemoteStationManager::GetStaId().

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◆ GetAssociationRequest()

std::variant< MgtAssocRequestHeader, MgtReassocRequestHeader > ns3::StaWifiMac::GetAssociationRequest	(	bool	isReassoc,
		uint8_t	linkId
	)		const

private

Get the (Re)Association Request frame to send on a given link.

The returned frame never includes a Multi-Link Element.

Parameters

isReassoc	whether a Reassociation Request has to be returned
linkId	the ID of the given link

Returns: the (Re)Association Request frame

Definition at line 295 of file sta-wifi-mac.cc.

References ns3::WifiMac::GetBssid(), GetCapabilities(), ns3::WifiMac::GetEhtCapabilities(), ns3::WifiMac::GetEhtSupported(), ns3::WifiMac::GetExtendedCapabilities(), ns3::WifiMac::GetHeCapabilities(), ns3::WifiMac::GetHeSupported(), ns3::WifiMac::GetHtCapabilities(), ns3::WifiMac::GetHtSupported(), ns3::WifiMac::GetSsid(), GetSupportedRates(), ns3::WifiMac::GetVhtCapabilities(), ns3::WifiMac::GetVhtSupported(), NS_LOG_FUNCTION, and ns3::MgtReassocRequestHeader::SetCurrentApAddress().

Referenced by GetMultiLinkElement(), and SendAssociationRequest().

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◆ GetCapabilities()

CapabilityInformation ns3::StaWifiMac::GetCapabilities ( uint8_t linkId ) const

private

Return the Capability information for the given link.

Parameters

linkId the ID of the given link

Returns: the Capability information that we support

Definition at line 1402 of file sta-wifi-mac.cc.

References ns3::WifiMac::GetErpSupported(), ns3::WifiMac::GetShortSlotTimeSupported(), ns3::WifiMac::GetWifiPhy(), ns3::CapabilityInformation::SetShortPreamble(), and ns3::CapabilityInformation::SetShortSlotTime().

Referenced by GetAssociationRequest().

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◆ GetCurrentChannel()

WifiScanParams::Channel ns3::StaWifiMac::GetCurrentChannel ( uint8_t linkId ) const

private

Get the current primary20 channel used on the given link as a (channel number, PHY band) pair.

Parameters

linkId the ID of the given link

Returns: a (channel number, PHY band) pair

Definition at line 235 of file sta-wifi-mac.cc.

References ns3::WifiMac::GetWifiPhy(), and third::phy.

Referenced by ReceiveBeacon().

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◆ GetLink()

StaWifiMac::StaLinkEntity & ns3::StaWifiMac::GetLink ( uint8_t linkId ) const

protected

Get a reference to the link associated with the given ID.

Parameters

linkId the given link ID

Returns: a reference to the link associated with the given ID

Definition at line 176 of file sta-wifi-mac.cc.

References ns3::WifiMac::GetLink().

Referenced by Disassociated(), GetMultiLinkElement(), GetSetupLinkIds(), MissedBeacons(), ReceiveAssocResp(), ReceiveBeacon(), RestartBeaconWatchdog(), ScanningTimeout(), and SendAssociationRequest().

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◆ GetMultiLinkElement()

MultiLinkElement ns3::StaWifiMac::GetMultiLinkElement	(	bool	isReassoc,
		uint8_t	linkId
	)		const

private

Return the Multi-Link Element to include in the management frames transmitted on the given link.

Parameters

isReassoc	whether the Multi-Link Element is included in a Reassociation Request
linkId	the ID of the given link

Returns: the Multi-Link Element

Definition at line 342 of file sta-wifi-mac.cc.

References ns3::MultiLinkElement::AddPerStaProfileSubelement(), ns3::MultiLinkElement::BASIC_VARIANT, ns3::WifiMac::GetAddress(), GetAssociationRequest(), GetLink(), ns3::WifiMac::GetNLinks(), ns3::MultiLinkElement::GetNPerStaProfileSubelements(), ns3::MultiLinkElement::GetPerStaProfile(), NS_LOG_FUNCTION, ns3::MultiLinkElement::PerStaProfileSubelement::SetLinkId(), ns3::MultiLinkElement::SetMldMacAddress(), ns3::WIFI_MAC_MGT_ASSOCIATION_REQUEST, and ns3::WIFI_MAC_MGT_REASSOCIATION_REQUEST.

Referenced by SendAssociationRequest().

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◆ GetSetupLinkIds()

std::set< uint8_t > ns3::StaWifiMac::GetSetupLinkIds ( ) const

Get the IDs of the setup links (if any).

Returns: the IDs of the setup links

Definition at line 718 of file sta-wifi-mac.cc.

References ns3::StaWifiMac::StaLinkEntity::bssid, GetLink(), ns3::WifiMac::GetNLinks(), and IsAssociated().

Referenced by DoGetLocalAddress(), Enqueue(), ns3::WifiNetDevice::GetAddress(), and Receive().

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◆ GetSupportedRates()

SupportedRates ns3::StaWifiMac::GetSupportedRates ( uint8_t linkId ) const

private

Return an instance of SupportedRates that contains all rates that we support including HT rates.

Parameters

linkId the ID of the link for which the request is made

Returns: SupportedRates all rates that we support

Definition at line 1382 of file sta-wifi-mac.cc.

References ns3::SupportedRates::AddBssMembershipSelectorRate(), ns3::SupportedRates::AddSupportedRate(), ns3::WifiMac::GetHtSupported(), ns3::WifiMac::GetWifiPhy(), and NS_LOG_DEBUG.

Referenced by GetAssociationRequest(), and SendProbeRequest().

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◆ GetTypeId()

TypeId ns3::StaWifiMac::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 52 of file sta-wifi-mac.cc.

References GetActiveProbing(), m_assocLogger, m_assocRequestTimeout, m_beaconArrival, m_beaconInfo, m_deAssocLogger, m_maxMissedBeacons, m_probeDelay, m_probeRequestTimeout, m_setupCanceled, m_setupCompleted, m_waitBeaconTimeout, ns3::MakeBooleanAccessor(), ns3::MakeBooleanChecker(), ns3::MakePointerAccessor(), ns3::MakeTimeAccessor(), ns3::MakeTimeChecker(), ns3::MakeTraceSourceAccessor(), ns3::MakeUintegerAccessor(), ns3::MilliSeconds(), ns3::Seconds(), SetActiveProbing(), and ns3::TypeId::SetParent().

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◆ IsAssociated()

bool ns3::StaWifiMac::IsAssociated ( ) const

Return whether we are associated with an AP.

Returns: true if we are associated with an AP, false otherwise

Definition at line 706 of file sta-wifi-mac.cc.

References ASSOCIATED, and m_state.

Referenced by CanForwardPacketsTo(), GetAssociationId(), GetSetupLinkIds(), ns3::WifiRemoteStationManager::GetStaId(), NotifyChannelSwitching(), PhyCapabilitiesChanged(), Receive(), and ReceiveBeacon().

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◆ IsWaitAssocResp()

bool ns3::StaWifiMac::IsWaitAssocResp ( ) const

private

Return whether we are waiting for an association response from an AP.

Returns: true if we are waiting for an association response from an AP, false otherwise

Definition at line 712 of file sta-wifi-mac.cc.

References m_state, and WAIT_ASSOC_RESP.

Referenced by ReceiveBeacon().

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◆ MissedBeacons()

void ns3::StaWifiMac::MissedBeacons ( uint8_t linkId )

private

This method is called after we have not received a beacon from the AP on the given link.

Parameters

linkId the ID of the given link

Definition at line 617 of file sta-wifi-mac.cc.

References Disassociated(), ns3::WifiPhy::GetDelayUntilIdle(), GetLink(), ns3::WifiMac::GetWifiPhy(), ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), and ns3::Seconds().

Referenced by RestartBeaconWatchdog().

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◆ NotifyChannelSwitching()

void ns3::StaWifiMac::NotifyChannelSwitching ( uint8_t linkId )

overridevirtual

Notify that channel on the given link has been switched.

Parameters

linkId the ID of the given link

Reimplemented from ns3::WifiMac.

Definition at line 1458 of file sta-wifi-mac.cc.

References Disassociated(), IsAssociated(), ns3::Object::IsInitialized(), m_assocManager, ns3::WifiMac::NotifyChannelSwitching(), and NS_LOG_FUNCTION.

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◆ PhyCapabilitiesChanged()

void ns3::StaWifiMac::PhyCapabilitiesChanged ( )

private

Indicate that PHY capabilities have changed.

Definition at line 1446 of file sta-wifi-mac.cc.

References IsAssociated(), NS_LOG_DEBUG, NS_LOG_FUNCTION, SendAssociationRequest(), SetState(), and WAIT_ASSOC_RESP.

Referenced by SetWifiPhys().

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◆ Receive()

void ns3::StaWifiMac::Receive	(	Ptr< const WifiMpdu >	mpdu,
		uint8_t	linkId
	)

overrideprivatevirtual

This method acts as the MacRxMiddle receive callback and is invoked to notify us that a frame has been received on the given link.

The implementation is intended to capture logic that is going to be common to all (or most) derived classes. Specifically, handling of Block Ack management frames is dealt with here.

This method will need, however, to be overridden by derived classes so that they can perform their data handling before invoking the base version.

The given link may be undefined in some cases (e.g., in case of QoS Data frames received in the context of a Block Ack agreement – because the BlockAckManager does not have to record the link each buffered MPDU has been received on); in such a cases, the value of linkId should be WIFI_LINKID_UNDEFINED.

Parameters

mpdu	the MPDU that has been received.
linkId	the ID of the given link

Reimplemented from ns3::WifiMac.

Definition at line 837 of file sta-wifi-mac.cc.

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◆ ReceiveAssocResp()

void ns3::StaWifiMac::ReceiveAssocResp	(	Ptr< const WifiMpdu >	mpdu,
		uint8_t	linkId
	)

private

Process the (Re)Association Response frame received on the given link.

Parameters

mpdu	the MPDU containing the (Re)Association Response frame
linkId	the ID of the given link

Definition at line 1020 of file sta-wifi-mac.cc.

References ns3::StaWifiMac::StaLinkEntity::apLinkId, ASSOCIATED, ns3::StaWifiMac::StaLinkEntity::bssid, ns3::EventId::Cancel(), ns3::WifiMacHeader::GetAddr2(), ns3::WifiMacHeader::GetAddr3(), ns3::MgtAssocResponseHeader::GetAssociationId(), GetLink(), ns3::WifiMac::GetMldAddress(), ns3::MgtAssocResponseHeader::GetMultiLinkElement(), ns3::WifiMac::GetNLinks(), ns3::MgtAssocResponseHeader::GetStatusCode(), ns3::WifiMac::GetWifiRemoteStationManager(), ns3::WifiMacHeader::IsAssocResp(), ns3::Callback< R, UArgs >::IsNull(), ns3::WifiMacHeader::IsReassocResp(), ns3::EventId::IsRunning(), ns3::StatusCode::IsSuccess(), m_aid, m_assocLogger, m_assocRequestEvent, ns3::WifiMac::m_linkUp, m_setupCompleted, m_state, NS_ABORT_MSG_IF, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::WifiMac::LinkEntity::phy, REFUSED, ns3::WifiMac::SetBssid(), ns3::WifiPhy::SetOffMode(), SetState(), StartScanning(), UpdateApInfo(), and WAIT_ASSOC_RESP.

Referenced by Receive().

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◆ ReceiveBeacon()

void ns3::StaWifiMac::ReceiveBeacon	(	Ptr< const WifiMpdu >	mpdu,
		uint8_t	linkId
	)

private

Process the Beacon frame received on the given link.

Parameters

mpdu	the MPDU containing the Beacon frame
linkId	the ID of the given link

Definition at line 933 of file sta-wifi-mac.cc.

References ASSOCIATED, ns3::StaWifiMac::StaLinkEntity::bssid, CheckSupportedRates(), ns3::SnrTag::Get(), ns3::WifiMacHeader::GetAddr2(), ns3::WifiMacHeader::GetAddr3(), ns3::MgtProbeResponseHeader::GetCapabilities(), GetCurrentChannel(), GetLink(), IsAssociated(), ns3::WifiMacHeader::IsBeacon(), ns3::CapabilityInformation::IsEss(), IsWaitAssocResp(), m_assocManager, m_beaconArrival, m_beaconInfo, ns3::StaWifiMac::ApInfo::m_bssid, ns3::StaWifiMac::ApInfo::m_frame, m_maxMissedBeacons, m_state, ns3::MicroSeconds(), ns3::Simulator::Now(), NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_LOGIC, RestartBeaconWatchdog(), and UpdateApInfo().

Referenced by Receive().

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◆ ReceiveProbeResp()

void ns3::StaWifiMac::ReceiveProbeResp	(	Ptr< const WifiMpdu >	mpdu,
		uint8_t	linkId
	)

private

Process the Probe Response frame received on the given link.

Parameters

mpdu	the MPDU containing the Probe Response frame
linkId	the ID of the given link

Definition at line 995 of file sta-wifi-mac.cc.

References CheckSupportedRates(), ns3::SnrTag::Get(), ns3::WifiMacHeader::GetAddr2(), ns3::WifiMacHeader::GetAddr3(), ns3::WifiMacHeader::IsProbeResp(), m_assocManager, ns3::StaWifiMac::ApInfo::m_bssid, NS_ASSERT, NS_LOG_DEBUG, and NS_LOG_FUNCTION.

Referenced by Receive().

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◆ RestartBeaconWatchdog()

void ns3::StaWifiMac::RestartBeaconWatchdog	(	Time	delay,
		uint8_t	linkId
	)

private

Restarts the beacon timer for the given link.

Parameters

delay	the delay before the watchdog fires
linkId	the ID of the given link

Definition at line 693 of file sta-wifi-mac.cc.

References ns3::Simulator::GetDelayLeft(), GetLink(), max, MissedBeacons(), ns3::Simulator::Now(), NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::Simulator::Schedule().

Referenced by ReceiveBeacon(), and ScanningTimeout().

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◆ ScanningTimeout()

void ns3::StaWifiMac::ScanningTimeout ( const std::optional< ApInfo > & bestAp )

This method is called after wait beacon timeout or wait probe request timeout has occurred.

This will trigger association process from beacons or probe responses gathered while scanning.

Parameters

bestAp the info about the best AP to associate with, if one was found

Definition at line 538 of file sta-wifi-mac.cc.

References ns3::StaWifiMac::StaLinkEntity::apLinkId, ns3::StaWifiMac::StaLinkEntity::bssid, ns3::WifiRemoteStationManager::GetAffiliatedStaAddress(), GetLink(), ns3::WifiRemoteStationManager::GetMldAddress(), ns3::WifiMac::GetNLinks(), ns3::WifiMac::GetWifiRemoteStationManager(), m_maxMissedBeacons, ns3::MicroSeconds(), NS_ABORT_MSG, NS_ABORT_MSG_IF, NS_LOG_DEBUG, NS_LOG_FUNCTION, RestartBeaconWatchdog(), ns3::Seconds(), SendAssociationRequest(), ns3::StaWifiMac::StaLinkEntity::sendAssocReq, SetState(), StartScanning(), UpdateApInfo(), and WAIT_ASSOC_RESP.

Referenced by ns3::WifiAssocManager::ScanningTimeout().

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◆ SendAssociationRequest()

void ns3::StaWifiMac::SendAssociationRequest ( bool isReassoc )

private

Forward an association or reassociation request packet to the DCF.

The standard is not clear on the correct queue for management frames if QoS is supported. We always use the DCF.

Parameters

isReassoc flag whether it is a reassociation request

Definition at line 389 of file sta-wifi-mac.cc.

References ns3::Packet::AddHeader(), AssocRequestTimeout(), ns3::EventId::Cancel(), GetAssociationRequest(), ns3::WifiMac::GetBEQueue(), GetLink(), ns3::WifiMac::GetMldAddress(), GetMultiLinkElement(), ns3::WifiMac::GetNLinks(), ns3::WifiMac::GetQosSupported(), ns3::WifiMac::GetTxop(), ns3::WifiMac::GetVOQueue(), ns3::WifiMac::GetWifiRemoteStationManager(), ns3::EventId::IsRunning(), m_assocRequestEvent, m_assocRequestTimeout, NS_ABORT_MSG_IF, NS_LOG_FUNCTION, ns3::Txop::Queue(), ns3::Simulator::Schedule(), ns3::WifiMacHeader::SetAddr1(), ns3::WifiMacHeader::SetAddr2(), ns3::WifiMacHeader::SetAddr3(), ns3::WifiMacHeader::SetDsNotFrom(), ns3::WifiMacHeader::SetDsNotTo(), ns3::WifiMacHeader::SetType(), ns3::WIFI_MAC_MGT_ASSOCIATION_REQUEST, and ns3::WIFI_MAC_MGT_REASSOCIATION_REQUEST.

Referenced by AssocRequestTimeout(), PhyCapabilitiesChanged(), and ScanningTimeout().

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◆ SendProbeRequest()

void ns3::StaWifiMac::SendProbeRequest ( )

Forward a probe request packet to the DCF.

The standard is not clear on the correct queue for management frames if QoS is supported. We always use the DCF.

Definition at line 244 of file sta-wifi-mac.cc.

Referenced by ns3::WifiDefaultAssocManager::DoStartScanning().

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◆ SetActiveProbing()

void ns3::StaWifiMac::SetActiveProbing ( bool enable )

private

Enable or disable active probing.

Parameters

enable enable or disable active probing

Definition at line 205 of file sta-wifi-mac.cc.

References m_activeProbing, m_state, NS_LOG_DEBUG, NS_LOG_FUNCTION, SCANNING, and StartScanning().

Referenced by GetTypeId().

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◆ SetAssocManager()

void ns3::StaWifiMac::SetAssocManager ( Ptr< WifiAssocManager > assocManager )

Set the Association Manager.

Parameters

assocManager the Association Manager

Definition at line 190 of file sta-wifi-mac.cc.

References m_assocManager, and NS_LOG_FUNCTION.

◆ SetEdcaParameters()

void ns3::StaWifiMac::SetEdcaParameters	(	AcIndex	ac,
		uint32_t	cwMin,
		uint32_t	cwMax,
		uint8_t	aifsn,
		Time	txopLimit
	)

private

Set the EDCA parameters.

Parameters

ac	the access class
cwMin	the minimum contention window size
cwMax	the maximum contention window size
aifsn	the number of slots that make up an AIFS
txopLimit	the TXOP limit

Definition at line 1418 of file sta-wifi-mac.cc.

References ns3::WifiMac::GetQosTxop(), ns3::Txop::SetAifsn(), ns3::Txop::SetMaxCw(), ns3::Txop::SetMinCw(), ns3::Txop::SetTxopLimit(), and ns3::SINGLE_LINK_OP_ID.

Referenced by UpdateApInfo().

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◆ SetMuEdcaParameters()

void ns3::StaWifiMac::SetMuEdcaParameters	(	AcIndex	ac,
		uint16_t	cwMin,
		uint16_t	cwMax,
		uint8_t	aifsn,
		Time	muEdcaTimer
	)

private

Set the MU EDCA parameters.

Parameters

ac	the Access Category
cwMin	the minimum contention window size
cwMax	the maximum contention window size
aifsn	the number of slots that make up an AIFS
muEdcaTimer	the MU EDCA timer

Definition at line 1432 of file sta-wifi-mac.cc.

References ns3::WifiMac::GetQosTxop(), ns3::QosTxop::SetMuAifsn(), ns3::QosTxop::SetMuCwMax(), ns3::QosTxop::SetMuCwMin(), ns3::QosTxop::SetMuEdcaTimer(), and ns3::SINGLE_LINK_OP_ID.

Referenced by UpdateApInfo().

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◆ SetState()

void ns3::StaWifiMac::SetState ( MacState value )

private

Set the current MAC state.

Parameters

value the new state

Definition at line 1412 of file sta-wifi-mac.cc.

References m_state, and second::value.

Referenced by AssocRequestTimeout(), Disassociated(), AmpduAggregationTest::DoRun(), TwoLevelAggregationTest::DoRun(), HeAggregationTest::DoRunSubTest(), PhyCapabilitiesChanged(), ReceiveAssocResp(), ScanningTimeout(), and StartScanning().

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◆ SetWifiPhys()

void ns3::StaWifiMac::SetWifiPhys ( const std::vector< Ptr< WifiPhy >> & phys )

overridevirtual

Parameters

phys	the physical layers attached to this MAC.

Reimplemented from ns3::WifiMac.

Definition at line 223 of file sta-wifi-mac.cc.

References ns3::MakeCallback(), NS_LOG_FUNCTION, third::phy, PhyCapabilitiesChanged(), and ns3::WifiMac::SetWifiPhys().

Referenced by AmpduAggregationTest::DoRun(), TwoLevelAggregationTest::DoRun(), and HeAggregationTest::DoRunSubTest().

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◆ StartScanning()

void ns3::StaWifiMac::StartScanning ( )

private

Start the scanning process which trigger active or passive scanning based on the active probing flag.

Definition at line 505 of file sta-wifi-mac.cc.

Referenced by DoInitialize(), ReceiveAssocResp(), ScanningTimeout(), SetActiveProbing(), and TryToEnsureAssociated().

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◆ TryToEnsureAssociated()

void ns3::StaWifiMac::TryToEnsureAssociated ( )

private

Try to ensure that we are associated with an AP by taking an appropriate action depending on the current association status.

Definition at line 467 of file sta-wifi-mac.cc.

References ASSOCIATED, ns3::WifiMac::m_linkDown, m_state, NS_LOG_FUNCTION, REFUSED, SCANNING, StartScanning(), UNASSOCIATED, and WAIT_ASSOC_RESP.

Referenced by Disassociated(), and Enqueue().

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◆ UpdateApInfo()

void ns3::StaWifiMac::UpdateApInfo	(	const MgtFrameType &	frame,
		const Mac48Address &	apAddr,
		const Mac48Address &	bssid,
		uint8_t	linkId
	)

private

Update associated AP's information from the given management frame (Beacon, Probe Response or Association Response).

If STA is not associated, this information will be used for the association process.

Parameters

frame	the body of the given management frame
apAddr	MAC address of the AP
bssid	MAC address of BSSID
linkId	ID of the link the management frame was received over

Definition at line 1189 of file sta-wifi-mac.cc.

Referenced by ReceiveAssocResp(), ReceiveBeacon(), and ScanningTimeout().

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Friends And Related Function Documentation

◆ ::AmpduAggregationTest

friend class ::AmpduAggregationTest

friend

Allow test cases to access private members.

Definition at line 129 of file sta-wifi-mac.h.

◆ ::HeAggregationTest

friend class ::HeAggregationTest

friend

Allow test cases to access private members.

Definition at line 131 of file sta-wifi-mac.h.

◆ ::MultiLinkOperationsTestBase

friend class ::MultiLinkOperationsTestBase

friend

Allow test cases to access private members.

Definition at line 133 of file sta-wifi-mac.h.

◆ ::TwoLevelAggregationTest

friend class ::TwoLevelAggregationTest

friend

Allow test cases to access private members.

Definition at line 127 of file sta-wifi-mac.h.

Member Data Documentation

◆ m_activeProbing

bool ns3::StaWifiMac::m_activeProbing

private

active probing

Definition at line 493 of file sta-wifi-mac.h.

Referenced by GetActiveProbing(), SetActiveProbing(), and StartScanning().

◆ m_aid

uint16_t ns3::StaWifiMac::m_aid

private

Association AID.

Definition at line 486 of file sta-wifi-mac.h.

Referenced by Disassociated(), GetAssociationId(), and ReceiveAssocResp().

◆ m_assocLogger

TracedCallback<Mac48Address> ns3::StaWifiMac::m_assocLogger

private

association logger

Definition at line 497 of file sta-wifi-mac.h.

Referenced by GetTypeId(), and ReceiveAssocResp().

◆ m_assocManager

Ptr<WifiAssocManager> ns3::StaWifiMac::m_assocManager

private

Association Manager.

Definition at line 487 of file sta-wifi-mac.h.

Referenced by DoDispose(), NotifyChannelSwitching(), ReceiveBeacon(), ReceiveProbeResp(), SetAssocManager(), and StartScanning().

◆ m_assocRequestEvent

EventId ns3::StaWifiMac::m_assocRequestEvent

private

association request event

Definition at line 491 of file sta-wifi-mac.h.

Referenced by ReceiveAssocResp(), and SendAssociationRequest().

◆ m_assocRequestTimeout

Time ns3::StaWifiMac::m_assocRequestTimeout

private

association request timeout

Definition at line 490 of file sta-wifi-mac.h.

Referenced by GetTypeId(), and SendAssociationRequest().

◆ m_beaconArrival

TracedCallback<Time> ns3::StaWifiMac::m_beaconArrival

private

beacon arrival logger

Definition at line 501 of file sta-wifi-mac.h.

Referenced by GetTypeId(), and ReceiveBeacon().

◆ m_beaconInfo

TracedCallback<ApInfo> ns3::StaWifiMac::m_beaconInfo

private

beacon info logger

Definition at line 502 of file sta-wifi-mac.h.

Referenced by GetTypeId(), and ReceiveBeacon().

◆ m_deAssocLogger

TracedCallback<Mac48Address> ns3::StaWifiMac::m_deAssocLogger

private

disassociation logger

Definition at line 499 of file sta-wifi-mac.h.

Referenced by Disassociated(), and GetTypeId().

◆ m_maxMissedBeacons

uint32_t ns3::StaWifiMac::m_maxMissedBeacons

private

maximum missed beacons

Definition at line 492 of file sta-wifi-mac.h.

Referenced by GetTypeId(), ReceiveBeacon(), and ScanningTimeout().

◆ m_probeDelay

Ptr<RandomVariableStream> ns3::StaWifiMac::m_probeDelay

private

RandomVariable used to randomize the time of the first Probe Response on each channel.

Definition at line 494 of file sta-wifi-mac.h.

Referenced by AssignStreams(), GetTypeId(), and StartScanning().

◆ m_probeRequestTimeout

Time ns3::StaWifiMac::m_probeRequestTimeout

private

probe request timeout

Definition at line 489 of file sta-wifi-mac.h.

Referenced by GetTypeId(), and StartScanning().

◆ m_setupCanceled

TracedCallback<uint8_t, Mac48Address> ns3::StaWifiMac::m_setupCanceled

private

link setup canceled logger

Definition at line 500 of file sta-wifi-mac.h.

Referenced by Disassociated(), and GetTypeId().

◆ m_setupCompleted

TracedCallback<uint8_t, Mac48Address> ns3::StaWifiMac::m_setupCompleted

private

link setup completed logger

Definition at line 498 of file sta-wifi-mac.h.

Referenced by GetTypeId(), and ReceiveAssocResp().

◆ m_state

MacState ns3::StaWifiMac::m_state

private

MAC state.

Definition at line 485 of file sta-wifi-mac.h.

Referenced by IsAssociated(), IsWaitAssocResp(), ReceiveAssocResp(), ReceiveBeacon(), SetActiveProbing(), SetState(), and TryToEnsureAssociated().

◆ m_waitBeaconTimeout

Time ns3::StaWifiMac::m_waitBeaconTimeout

private

wait beacon timeout

Definition at line 488 of file sta-wifi-mac.h.

Referenced by GetTypeId(), and StartScanning().

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

src/wifi/model/sta-wifi-mac.h
src/wifi/model/sta-wifi-mac.cc

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Config Paths

Attributes

Attributes defined in parent class ns3::WifiMac

TraceSources

TraceSources defined in parent class ns3::WifiMac

Member Typedef Documentation

◆ LinkSetupCallback

◆ MgtFrameType

Member Enumeration Documentation

◆ MacState

Constructor & Destructor Documentation

◆ StaWifiMac()

◆ ~StaWifiMac()

Member Function Documentation

◆ AssignStreams()

◆ AssocRequestTimeout()

◆ CanForwardPacketsTo()

◆ CheckSupportedRates()

◆ CreateLinkEntity()

◆ Disassociated()

◆ DoDispose()

◆ DoGetLocalAddress()

◆ DoInitialize()

◆ Enqueue()

◆ GetActiveProbing()

◆ GetAssociationId()

◆ GetAssociationRequest()

◆ GetCapabilities()

◆ GetCurrentChannel()

◆ GetLink()

◆ GetMultiLinkElement()

◆ GetSetupLinkIds()

◆ GetSupportedRates()

◆ GetTypeId()

◆ IsAssociated()

◆ IsWaitAssocResp()

◆ MissedBeacons()

◆ NotifyChannelSwitching()

◆ PhyCapabilitiesChanged()

◆ Receive()

◆ ReceiveAssocResp()

◆ ReceiveBeacon()

◆ ReceiveProbeResp()

◆ RestartBeaconWatchdog()

◆ ScanningTimeout()

◆ SendAssociationRequest()

◆ SendProbeRequest()

◆ SetActiveProbing()

◆ SetAssocManager()

◆ SetEdcaParameters()

◆ SetMuEdcaParameters()

◆ SetState()

◆ SetWifiPhys()

◆ StartScanning()

◆ TryToEnsureAssociated()

◆ UpdateApInfo()

Friends And Related Function Documentation

◆ ::AmpduAggregationTest

◆ ::HeAggregationTest

◆ ::MultiLinkOperationsTestBase

◆ ::TwoLevelAggregationTest

Member Data Documentation

◆ m_activeProbing

◆ m_aid

◆ m_assocLogger

◆ m_assocManager

◆ m_assocRequestEvent

◆ m_assocRequestTimeout

◆ m_beaconArrival