Wi-Fi AP state machine. More...

#include "ap-wifi-mac.h"

Inheritance diagram for ns3::ApWifiMac:

Collaboration diagram for ns3::ApWifiMac:

Classes
struct	bsrType
	store value and timestamp for each Buffer Status Report More...

Public Member Functions
	ApWifiMac ()

virtual	~ApWifiMac ()

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

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

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

uint16_t	GetAssociationId (Mac48Address addr) const

Time	GetBeaconInterval (void) const

uint8_t	GetBufferStatus (uint8_t tid, Mac48Address address) const
	Return the value of the Queue Size subfield of the last QoS Data or QoS Null frame received from the station with the given MAC address and belonging to the given TID. More...

uint8_t	GetMaxBufferStatus (Mac48Address address) const
	Return the maximum among the values of the Queue Size subfield of the last QoS Data or QoS Null frames received from the station with the given MAC address and belonging to any TID. More...

const std::map< uint16_t, Mac48Address > &	GetStaList (void) const
	Get a const reference to the map of associated stations. More...

uint16_t	GetVhtOperationalChannelWidth (void) const
	Determine the VHT operational channel width (in MHz). More...

void	SetAddress (Mac48Address address) override

void	SetBeaconInterval (Time interval)

void	SetBufferStatus (uint8_t tid, Mac48Address address, uint8_t size)
	Store the value of the Queue Size subfield of the last QoS Data or QoS Null frame received from the station with the given MAC address and belonging to the given TID. More...

void	SetLinkUpCallback (Callback< void > linkUp) override

void	SetWifiRemoteStationManager (const Ptr< WifiRemoteStationManager > stationManager) override

bool	SupportsSendFrom (void) const override

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

virtual	~RegularWifiMac ()

void	ConfigureStandard (WifiStandard standard) override

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

Mac48Address	GetAddress (void) const override

Mac48Address	GetBssid (void) const override

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

Ptr< FrameExchangeManager >	GetFrameExchangeManager (void) const
	Get the Frame Exchange Manager. More...

HeCapabilities	GetHeCapabilities (void) const
	Return the HE capabilities of the device. More...

HtCapabilities	GetHtCapabilities (void) const
	Return the HT capabilities of the device. 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...

bool	GetShortSlotTimeSupported (void) const override

Ssid	GetSsid (void) const override

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

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

VhtCapabilities	GetVhtCapabilities (void) const
	Return the VHT capabilities of the device. More...

Ptr< WifiPhy >	GetWifiPhy (void) const override

Ptr< WifiRemoteStationManager >	GetWifiRemoteStationManager (void) const override

void	ResetWifiPhy (void) override
	Remove currently attached WifiPhy device from this MAC. More...

void	SetAddress (Mac48Address address) override

void	SetBssid (Mac48Address bssid)

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

void	SetForwardUpCallback (ForwardUpCallback upCallback) override

void	SetLinkDownCallback (Callback< void > linkDown) override

void	SetLinkUpCallback (Callback< void > linkUp) override

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

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

void	SetSsid (Ssid ssid) override

void	SetWifiPhy (const Ptr< WifiPhy > phy) override

void	SetWifiRemoteStationManager (const Ptr< WifiRemoteStationManager > stationManager) override

bool	SupportsSendFrom (void) const override

Public Member Functions inherited from ns3::WifiMac
Ptr< NetDevice >	GetDevice (void) const
	Return the device this PHY is associated with. More...

Ptr< HeConfiguration >	GetHeConfiguration (void) const

Ptr< HtConfiguration >	GetHtConfiguration (void) const

Ptr< VhtConfiguration >	GetVhtConfiguration (void) 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)

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

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

virtual	~Object ()
	Destructor. More...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Private Types
typedef void(*	AssociationCallback) (uint16_t aid, Mac48Address address)
	TracedCallback signature for association/deassociation events. More...

Private Member Functions
void	DeaggregateAmsduAndForward (Ptr< WifiMacQueueItem > mpdu) override
	This method is called to de-aggregate an A-MSDU and forward the constituent packets up the stack. More...

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

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

void	ForwardDown (Ptr< Packet > packet, Mac48Address from, Mac48Address to)
	Forward the packet down to DCF/EDCAF (enqueue the packet). More...

void	ForwardDown (Ptr< Packet > packet, Mac48Address from, Mac48Address to, uint8_t tid)
	Forward the packet down to DCF/EDCAF (enqueue the packet). More...

CapabilityInformation	GetCapabilities (void) const
	Return the Capability information of the current AP. More...

DsssParameterSet	GetDsssParameterSet (void) const
	Return the DSSS Parameter Set that we support. More...

EdcaParameterSet	GetEdcaParameterSet (void) const
	Return the EDCA Parameter Set of the current AP. More...

ErpInformation	GetErpInformation (void) const
	Return the ERP information of the current AP. More...

HeOperation	GetHeOperation (void) const
	Return the HE operation of the current AP. More...

HtOperation	GetHtOperation (void) const
	Return the HT operation of the current AP. More...

uint16_t	GetNextAssociationId (void)

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

bool	GetUseNonErpProtection (void) const
	Return whether protection for non-ERP stations is used in the BSS. More...

VhtOperation	GetVhtOperation (void) const
	Return the VHT operation of the current AP. More...

void	Receive (Ptr< WifiMacQueueItem > mpdu) override
	This method acts as the MacRxMiddle receive callback and is invoked to notify us that a frame has been received. More...

void	SendAssocResp (Mac48Address to, bool success, bool isReassoc)
	Forward an association or a reassociation response packet to the DCF. More...

void	SendOneBeacon (void)
	Forward a beacon packet to the beacon special DCF. More...

void	SendProbeResp (Mac48Address to)
	Forward a probe response packet to the DCF. More...

void	SetBeaconGeneration (bool enable)
	Enable or disable beacon generation of the AP. More...

void	TxFailed (uint8_t timeoutReason, Ptr< const WifiMacQueueItem > mpdu, const WifiTxVector &txVector)
	The packet we sent was successfully received by the receiver (i.e. More...

void	TxOk (Ptr< const WifiMacQueueItem > mpdu)
	The packet we sent was successfully received by the receiver (i.e. More...

void	UpdateShortPreambleEnabled (void)
	Update whether short preamble should be enabled or not in the BSS. More...

void	UpdateShortSlotTimeEnabled (void)
	Update whether short slot time should be enabled or not in the BSS. More...

Private Attributes
std::unordered_map< Mac48Address, uint16_t, WifiAddressHash >	m_addressIdMap
	Maps MAC addresses of associated stations to their association ID. More...

TracedCallback< uint16_t, Mac48Address >	m_assocLogger
	association logger More...

EventId	m_beaconEvent
	Event to generate one beacon. More...

Time	m_beaconInterval
	Beacon interval. More...

Ptr< UniformRandomVariable >	m_beaconJitter
	UniformRandomVariable used to randomize the time of the first beacon. More...

Ptr< Txop >	m_beaconTxop
	Dedicated Txop for beacons. More...

Time	m_bsrLifetime
	Lifetime of Buffer Status Reports. More...

std::unordered_map< WifiAddressTidPair, bsrType, WifiAddressTidHash >	m_bufferStatus
	Per (MAC address, TID) buffer status reports. More...

TracedCallback< uint16_t, Mac48Address >	m_deAssocLogger
	deassociation logger More...

bool	m_enableBeaconGeneration
	Flag whether beacons are being generated. More...

bool	m_enableBeaconJitter
	Flag whether the first beacon should be generated at random time. More...

bool	m_enableNonErpProtection
	Flag whether protection mechanism is used or not when non-ERP STAs are present within the BSS. More...

uint16_t	m_numNonErpStations
	Number of non-ERP stations currently associated to the AP. More...

uint16_t	m_numNonHtStations
	Number of non-HT stations currently associated to the AP. More...

bool	m_shortPreambleEnabled
	Flag whether short preamble is enabled in the BSS. More...

bool	m_shortSlotTimeEnabled
	Flag whether short slot time is enabled within the BSS. More...

std::map< uint16_t, Mac48Address >	m_staList
	Map of all stations currently associated to the AP with their association ID. More...

Additional Inherited Members
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...

Protected Types inherited from ns3::RegularWifiMac
typedef std::map< AcIndex, Ptr< QosTxop > >	EdcaQueues
	This type defines a mapping between an Access Category index, and a pointer to the corresponding channel access function. More...

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

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 (void) const
	Accessor for the AC_BE channel access function. More...

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

bool	GetDsssSupported () const
	Return whether the device supports DSSS. More...

bool	GetErpSupported () const
	Return whether the device supports ERP. More...

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

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

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

bool	GetVhtSupported () const
	Return whether the device supports VHT. More...

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

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

void	SetDsssSupported (bool enable)
	Enable or disable DSSS support for the device. More...

void	SetErpSupported (bool enable)
	Enable or disable ERP support for the device. More...

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

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

void	SetupFrameExchangeManager (void)
	Create a Frame Exchange Manager depending on the supported version of the standard. More...

Protected Member Functions inherited from ns3::WifiMac
void	ConfigureDcf (Ptr< Txop > dcf, uint32_t cwmin, uint32_t cwmax, bool isDsss, AcIndex ac)

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...

Protected Attributes inherited from ns3::RegularWifiMac
Ptr< ChannelAccessManager >	m_channelAccessManager
	channel access manager More...

EdcaQueues	m_edca
	This is a map from Access Category index to the corresponding channel access function. More...

Ptr< FrameExchangeManager >	m_feManager
	Frame Exchange Manager. More...

ForwardUpCallback	m_forwardUp
	Callback to forward packet up the stack. More...

Callback< void >	m_linkDown
	Callback when a link is down. More...

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

Ptr< WifiPhy >	m_phy
	Wifi PHY. More...

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

Ssid	m_ssid
	Service Set ID (SSID) More...

Ptr< WifiRemoteStationManager >	m_stationManager
	Remote station manager (rate control, RTS/CTS/fragmentation thresholds etc.) More...

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

Ptr< Txop >	m_txop
	This holds a pointer to the TXOP instance for this WifiMac - used for transmission of frames to non-QoS peers. 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

Wi-Fi AP state machine.

Handle association, dis-association and authentication, of STAs within an infrastructure BSS.

Config Paths

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

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

Attributes

BeaconInterval: Delay between two beacons
- Set with class: ns3::TimeValue
- Underlying type: Time -9.22337e+18ns:+9.22337e+18ns
- Initial value: +1.024e+08ns
- Flags: construct write read
BeaconJitter: A uniform random variable to cause the initial beacon starting time (after simulation time 0) to be distributed between 0 and the BeaconInterval.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::UniformRandomVariable>
- Initial value: ns3::UniformRandomVariable
- Flags: construct write read
EnableBeaconJitter: If beacons are enabled, whether to jitter the initial send event.
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: true
- Flags: construct write read
BeaconGeneration: Whether or not beacons are generated.
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: true
- Flags: construct write
EnableNonErpProtection: Whether or not protection mechanism should be used when non-ERP STAs are present within the BSS.This parameter is only used when ERP is supported by the AP.
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: true
- Flags: construct write read
BsrLifetime: Lifetime of Buffer Status Reports received from stations.
- Set with class: ns3::TimeValue
- Underlying type: Time -9.22337e+18ns:+9.22337e+18ns
- Initial value: +2e+07ns
- Flags: construct write read

Attributes defined in parent class ns3::RegularWifiMac

QosSupported: This Boolean attribute is set to enable 802.11e/WMM-style QoS support at this STA.
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: construct write read
CtsToSelfSupported: Use CTS to Self when using a rate that is not in the basic rate set.
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: false
- Flags: construct write
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 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: construct write read
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 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: construct write read
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 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: construct write read
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 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: construct write read
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, and 6500631 for HE PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:6500631
- Initial value: 0
- Flags: construct write read
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, and 6500631 for HE PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:6500631
- Initial value: 65535
- Flags: construct write read
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, and 6500631 for HE PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:6500631
- Initial value: 65535
- Flags: construct write read
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, and 6500631 for HE PPDUs). Value 0 means A-MPDU aggregation is disabled for that AC.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:6500631
- Initial value: 0
- Flags: construct write read
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: construct write
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: construct write
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: construct write
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: construct write
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: construct write
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: construct write
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: construct write
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: construct write
ShortSlotTimeSupported: Whether or not short slot time is supported (only used by ERP APs or STAs).
- Set with class: BooleanValue
- Underlying type: bool
- Initial value: true
- Flags: construct write read
Txop: The Txop object.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::Txop>
- Flags: read
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
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
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_Txop: Queue that manages packets belonging to AC_BK access class.
- Set with class: ns3::PointerValue
- Underlying type: ns3::Ptr< ns3::QosTxop>
- Flags: read

Attributes defined in parent class ns3::WifiMac

Ssid: The ssid we want to belong to.
- Set with class: SsidValue
- Underlying type: Ssid
- Initial value: default
- Flags: construct write read

TraceSources

AssociatedSta: A station associated with this access point.
Callback signature: ns3::ApWifiMac::AssociationCallback
DeAssociatedSta: A station lost association with this access point.
Callback signature: ns3::ApWifiMac::AssociationCallback

TraceSources defined in parent class ns3::RegularWifiMac

TxOkHeader: The header of successfully transmitted packet.
Callback signature: ns3::WifiMacHeader::TracedCallback
TxErrHeader: The header of unsuccessfully transmitted packet.
Callback signature: ns3::WifiMacHeader::TracedCallback
AckedMpdu: An MPDU that was successfully acknowledged, via either a Normal Ack or a Block Ack.
Callback signature: ns3::WifiMacQueueItem::TracedCallback
NAckedMpdu: An MPDU that was negatively acknowledged via a Block Ack.
Callback signature: ns3::WifiMacQueueItem::TracedCallback
DroppedMpdu: An MPDU that was dropped for the given reason (see WifiMacDropReason).
Callback signature: ns3::RegularWifiMac::DroppedMpduCallback
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 or a Normal Ack is missing after an MPDU or after a DL MU PPDU acknowledged in SU format.
Callback signature: ns3::RegularWifiMac::MpduResponseTimeoutCallback
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::RegularWifiMac::PsduResponseTimeoutCallback
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::RegularWifiMac::PsduMapResponseTimeoutCallback

TraceSources defined in parent class ns3::WifiMac

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
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

Size of this type is 872 bytes (on a 64-bit architecture).

Definition at line 48 of file ap-wifi-mac.h.

Member Typedef Documentation

◆ AssociationCallback

typedef void(* ns3::ApWifiMac::AssociationCallback) (uint16_t aid, Mac48Address address)

private

TracedCallback signature for association/deassociation events.

Parameters

aid	the AID of the station
address	the MAC address of the station

Definition at line 333 of file ap-wifi-mac.h.

Constructor & Destructor Documentation

◆ ApWifiMac()

ns3::ApWifiMac::ApWifiMac ( )

Definition at line 98 of file ap-wifi-mac.cc.

References ns3::AP, m_beaconTxop, ns3::RegularWifiMac::m_channelAccessManager, ns3::RegularWifiMac::m_txMiddle, NS_LOG_FUNCTION, ns3::Txop::SetAifsn(), ns3::Txop::SetChannelAccessManager(), ns3::Txop::SetMaxCw(), ns3::Txop::SetMinCw(), ns3::Txop::SetTxMiddle(), and ns3::RegularWifiMac::SetTypeOfStation().

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◆ ~ApWifiMac()

ns3::ApWifiMac::~ApWifiMac ( )

virtual

Definition at line 117 of file ap-wifi-mac.cc.

References m_addressIdMap, m_staList, and NS_LOG_FUNCTION.

Member Function Documentation

◆ AssignStreams()

int64_t ns3::ApWifiMac::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 203 of file ap-wifi-mac.cc.

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

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◆ DeaggregateAmsduAndForward()

void ns3::ApWifiMac::DeaggregateAmsduAndForward ( Ptr< WifiMacQueueItem > mpdu )

overrideprivatevirtual

This method is called to de-aggregate an A-MSDU and forward the constituent packets up the stack.

We override the WifiMac version here because, as an AP, we also need to think about redistributing to other associated STAs.

Parameters

mpdu	the MPDU containing the A-MSDU.

Reimplemented from ns3::RegularWifiMac.

Definition at line 1323 of file ap-wifi-mac.cc.

References ForwardDown(), ns3::RegularWifiMac::ForwardUp(), ns3::RegularWifiMac::GetAddress(), ns3::WifiMacQueueItem::GetHeader(), ns3::WifiMacHeader::GetQosTid(), NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::PeekPointer().

Referenced by Receive().

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◆ DoDispose()

void ns3::ApWifiMac::DoDispose ( void )

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::WifiMac.

Definition at line 125 of file ap-wifi-mac.cc.

References ns3::EventId::Cancel(), ns3::Object::Dispose(), ns3::RegularWifiMac::DoDispose(), m_beaconEvent, m_beaconTxop, m_enableBeaconGeneration, and NS_LOG_FUNCTION.

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◆ DoInitialize()

void ns3::ApWifiMac::DoInitialize ( void )

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 1344 of file ap-wifi-mac.cc.

References ns3::EventId::Cancel(), ns3::RegularWifiMac::DoInitialize(), ns3::RegularWifiMac::GetAddress(), GetBeaconInterval(), ns3::UniformRandomVariable::GetValue(), ns3::Object::Initialize(), m_beaconEvent, m_beaconJitter, m_beaconTxop, m_enableBeaconGeneration, m_enableBeaconJitter, ns3::MakeCallback(), ns3::MicroSeconds(), NS_ABORT_IF, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::Simulator::Schedule(), ns3::Simulator::ScheduleNow(), SendOneBeacon(), ns3::ObjectBase::TraceConnectWithoutContext(), TxFailed(), TxOk(), UpdateShortPreambleEnabled(), and UpdateShortSlotTimeEnabled().

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◆ Enqueue() [1/2]

void ns3::ApWifiMac::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 DCF function determines that access it granted to this MAC.

Implements ns3::RegularWifiMac.

Definition at line 363 of file ap-wifi-mac.cc.

References ns3::RegularWifiMac::GetAddress(), and NS_LOG_FUNCTION.

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◆ Enqueue() [2/2]

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

overridevirtual

Parameters

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

The packet should be enqueued in a TX queue, and should be dequeued as soon as the DCF function determines that access it granted to this MAC. The extra parameter "from" allows this device to operate in a bridged mode, forwarding received frames without altering the source address.

Implements ns3::WifiMac.

Definition at line 349 of file ap-wifi-mac.cc.

References ForwardDown(), ns3::WifiRemoteStationManager::IsAssociated(), ns3::Mac48Address::IsGroup(), ns3::RegularWifiMac::m_stationManager, ns3::WifiMac::NotifyTxDrop(), and NS_LOG_FUNCTION.

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◆ ForwardDown() [1/2]

void ns3::ApWifiMac::ForwardDown	(	Ptr< Packet >	packet,
		Mac48Address	from,
		Mac48Address	to
	)

private

Forward the packet down to DCF/EDCAF (enqueue the packet).

This method is a wrapper for ForwardDown with traffic id.

Parameters

packet	the packet we are forwarding to DCF/EDCAF
from	the address to be used for Address 3 field in the header
to	the address to be used for Address 1 field in the header

Definition at line 273 of file ap-wifi-mac.cc.

References ns3::RegularWifiMac::GetQosSupported(), NS_LOG_FUNCTION, and ns3::QosUtilsGetTidForPacket().

Referenced by DeaggregateAmsduAndForward(), Enqueue(), and Receive().

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◆ ForwardDown() [2/2]

void ns3::ApWifiMac::ForwardDown	(	Ptr< Packet >	packet,
		Mac48Address	from,
		Mac48Address	to,
		uint8_t	tid
	)

private

Forward the packet down to DCF/EDCAF (enqueue the packet).

Parameters

packet	the packet we are forwarding to DCF/EDCAF
from	the address to be used for Address 3 field in the header
to	the address to be used for Address 1 field in the header
tid	the traffic id for the packet

Definition at line 299 of file ap-wifi-mac.cc.

References ns3::RegularWifiMac::GetAddress(), ns3::RegularWifiMac::GetQosSupported(), ns3::RegularWifiMac::m_edca, ns3::RegularWifiMac::m_txop, ns3::WifiMacHeader::NORMAL_ACK, NS_ASSERT, NS_LOG_FUNCTION, ns3::QosUtilsMapTidToAc(), ns3::Txop::Queue(), ns3::WifiMacHeader::SetAddr1(), ns3::WifiMacHeader::SetAddr2(), ns3::WifiMacHeader::SetAddr3(), ns3::WifiMacHeader::SetDsFrom(), ns3::WifiMacHeader::SetDsNotTo(), ns3::WifiMacHeader::SetNoOrder(), ns3::WifiMacHeader::SetQosAckPolicy(), ns3::WifiMacHeader::SetQosNoAmsdu(), ns3::WifiMacHeader::SetQosNoEosp(), ns3::WifiMacHeader::SetQosTid(), ns3::WifiMacHeader::SetQosTxopLimit(), ns3::WifiMacHeader::SetType(), ns3::WIFI_MAC_DATA, and ns3::WIFI_MAC_QOSDATA.

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◆ GetAssociationId()

uint16_t ns3::ApWifiMac::GetAssociationId ( Mac48Address addr ) const

Parameters

addr	the address of the associated station

Returns: the Association ID allocated by the AP to the station, SU_STA_ID if unallocated

Definition at line 1400 of file ap-wifi-mac.cc.

References m_addressIdMap, and SU_STA_ID.

◆ GetBeaconInterval()

Time ns3::ApWifiMac::GetBeaconInterval ( void ) const

Returns: the interval between two beacon transmissions.

Definition at line 161 of file ap-wifi-mac.cc.

References m_beaconInterval, and NS_LOG_FUNCTION.

Referenced by DoInitialize(), GetTypeId(), SendOneBeacon(), and SendProbeResp().

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◆ GetBufferStatus()

uint8_t ns3::ApWifiMac::GetBufferStatus	(	uint8_t	tid,
		Mac48Address	address
	)		const

Return the value of the Queue Size subfield of the last QoS Data or QoS Null frame received from the station with the given MAC address and belonging to the given TID.

The Queue Size value is the total size, rounded up to the nearest multiple of 256 octets and expressed in units of 256 octets, of all MSDUs and A-MSDUs buffered at the STA (excluding the MSDU or A-MSDU of the present QoS Data frame). A queue size value of 254 is used for all sizes greater than 64 768 octets. A queue size value of 255 is used to indicate an unspecified or unknown size. See Section 9.2.4.5.6 of 802.11-2016

Parameters

tid	the given TID
address	the given MAC address

Returns: the value of the Queue Size subfield

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

References first::address, m_bsrLifetime, m_bufferStatus, and ns3::Simulator::Now().

Referenced by GetMaxBufferStatus().

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◆ GetCapabilities()

CapabilityInformation ns3::ApWifiMac::GetCapabilities ( void ) const

private

Return the Capability information of the current AP.

Returns: the Capability information that we support

Definition at line 436 of file ap-wifi-mac.cc.

References m_shortPreambleEnabled, m_shortSlotTimeEnabled, NS_LOG_FUNCTION, ns3::CapabilityInformation::SetEss(), ns3::CapabilityInformation::SetShortPreamble(), and ns3::CapabilityInformation::SetShortSlotTime().

Referenced by SendAssocResp(), SendOneBeacon(), and SendProbeResp().

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◆ GetDsssParameterSet()

DsssParameterSet ns3::ApWifiMac::GetDsssParameterSet ( void ) const

private

Return the DSSS Parameter Set that we support.

Returns: the DSSS Parameter Set that we support

Definition at line 423 of file ap-wifi-mac.cc.

References ns3::WifiPhy::GetChannelNumber(), ns3::RegularWifiMac::GetDsssSupported(), ns3::RegularWifiMac::m_phy, NS_LOG_FUNCTION, ns3::DsssParameterSet::SetCurrentChannel(), and ns3::DsssParameterSet::SetDsssSupported().

Referenced by SendOneBeacon(), and SendProbeResp().

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◆ GetEdcaParameterSet()

EdcaParameterSet ns3::ApWifiMac::GetEdcaParameterSet ( void ) const

private

Return the EDCA Parameter Set of the current AP.

Returns: the EDCA Parameter Set that we support

Definition at line 469 of file ap-wifi-mac.cc.

Referenced by SendAssocResp(), SendOneBeacon(), and SendProbeResp().

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◆ GetErpInformation()

ErpInformation ns3::ApWifiMac::GetErpInformation ( void ) const

private

Return the ERP information of the current AP.

Returns: the ERP information that we support

Definition at line 447 of file ap-wifi-mac.cc.

References ns3::RegularWifiMac::GetErpSupported(), GetUseNonErpProtection(), m_numNonErpStations, m_shortPreambleEnabled, NS_LOG_FUNCTION, ns3::ErpInformation::SetBarkerPreambleMode(), ns3::ErpInformation::SetErpSupported(), ns3::ErpInformation::SetNonErpPresent(), and ns3::ErpInformation::SetUseProtection().

Referenced by SendAssocResp(), SendOneBeacon(), and SendProbeResp().

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◆ GetHeOperation()

HeOperation ns3::ApWifiMac::GetHeOperation ( void ) const

private

Return the HE operation of the current AP.

Returns: the HE operation that we support

Definition at line 647 of file ap-wifi-mac.cc.

References ns3::WifiMac::GetHeConfiguration(), ns3::RegularWifiMac::GetHeSupported(), ns3::WifiRemoteStationManager::GetHeSupported(), ns3::WifiPhy::GetMaxSupportedRxSpatialStreams(), ns3::WifiRemoteStationManager::GetNumberOfSupportedStreams(), ns3::RegularWifiMac::m_phy, m_staList, ns3::RegularWifiMac::m_stationManager, NS_LOG_FUNCTION, ns3::HeOperation::SetBssColor(), ns3::HeOperation::SetHeSupported(), and ns3::HeOperation::SetMaxHeMcsPerNss().

Referenced by SendAssocResp(), SendOneBeacon(), and SendProbeResp().

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◆ GetHtOperation()

HtOperation ns3::ApWifiMac::GetHtOperation ( void ) const

private

Return the HT operation of the current AP.

Returns: the HT operation that we support

Definition at line 517 of file ap-wifi-mac.cc.

Referenced by SendAssocResp(), SendOneBeacon(), and SendProbeResp().

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◆ GetMaxBufferStatus()

uint8_t ns3::ApWifiMac::GetMaxBufferStatus ( Mac48Address address ) const

Return the maximum among the values of the Queue Size subfield of the last QoS Data or QoS Null frames received from the station with the given MAC address and belonging to any TID.

Parameters

address the given MAC address

Returns: the maximum among the values of the Queue Size subfields

Definition at line 1438 of file ap-wifi-mac.cc.

References first::address, GetBufferStatus(), and max.

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◆ GetNextAssociationId()

uint16_t ns3::ApWifiMac::GetNextAssociationId ( void )

private

Returns: the next Association ID to be allocated by the AP

Definition at line 1379 of file ap-wifi-mac.cc.

References m_staList, and NS_FATAL_ERROR.

Referenced by SendAssocResp().

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◆ GetStaList()

const std::map< uint16_t, Mac48Address > & ns3::ApWifiMac::GetStaList ( void ) const

Get a const reference to the map of associated stations.

Each station is specified by an (association ID, MAC address) pair. Make sure not to use the returned reference after that this object has been deallocated.

Returns: a const reference to the map of associated stations

Definition at line 1394 of file ap-wifi-mac.cc.

References m_staList.

◆ GetSupportedRates()

SupportedRates ns3::ApWifiMac::GetSupportedRates ( void ) const

private

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

Returns: SupportedRates all rates that we support

Definition at line 380 of file ap-wifi-mac.cc.

References ns3::WifiRemoteStationManager::AddBasicMode(), ns3::SupportedRates::AddBssMembershipSelectorRate(), ns3::SupportedRates::AddSupportedRate(), ns3::WifiRemoteStationManager::GetBasicMode(), ns3::WifiPhy::GetBssMembershipSelectorList(), ns3::WifiPhy::GetChannelWidth(), ns3::WifiMode::GetDataRate(), ns3::RegularWifiMac::GetHtSupported(), ns3::WifiPhy::GetModeList(), ns3::WifiRemoteStationManager::GetNBasicModes(), ns3::WifiMode::GetUniqueName(), ns3::RegularWifiMac::m_phy, ns3::RegularWifiMac::m_stationManager, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::SupportedRates::SetBasicRate(), and ns3::WIFI_MOD_CLASS_HR_DSSS.

Referenced by SendAssocResp(), SendOneBeacon(), and SendProbeResp().

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◆ GetTypeId()

TypeId ns3::ApWifiMac::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 48 of file ap-wifi-mac.cc.

References GetBeaconInterval(), m_assocLogger, m_beaconJitter, m_bsrLifetime, m_deAssocLogger, m_enableBeaconJitter, m_enableNonErpProtection, ns3::MakeBooleanAccessor(), ns3::MakeBooleanChecker(), ns3::MakePointerAccessor(), ns3::MakeTimeAccessor(), ns3::MakeTimeChecker(), ns3::MakeTraceSourceAccessor(), ns3::MicroSeconds(), ns3::MilliSeconds(), SetBeaconGeneration(), SetBeaconInterval(), and ns3::TypeId::SetParent().

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◆ GetUseNonErpProtection()

bool ns3::ApWifiMac::GetUseNonErpProtection ( void ) const

private

Return whether protection for non-ERP stations is used in the BSS.

Returns: true if protection for non-ERP stations is used in the BSS, false otherwise

Definition at line 1371 of file ap-wifi-mac.cc.

References m_enableNonErpProtection, m_numNonErpStations, ns3::RegularWifiMac::m_stationManager, and ns3::WifiRemoteStationManager::SetUseNonErpProtection().

Referenced by GetErpInformation().

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◆ GetVhtOperation()

VhtOperation ns3::ApWifiMac::GetVhtOperation ( void ) const

private

Return the VHT operation of the current AP.

Returns: the VHT operation that we support

Definition at line 606 of file ap-wifi-mac.cc.

References ns3::WifiPhy::GetMaxSupportedRxSpatialStreams(), ns3::WifiRemoteStationManager::GetNumberOfSupportedStreams(), GetVhtOperationalChannelWidth(), ns3::RegularWifiMac::GetVhtSupported(), ns3::WifiRemoteStationManager::GetVhtSupported(), ns3::RegularWifiMac::m_phy, m_staList, ns3::RegularWifiMac::m_stationManager, NS_LOG_FUNCTION, ns3::VhtOperation::SetChannelWidth(), ns3::VhtOperation::SetMaxVhtMcsPerNss(), and ns3::VhtOperation::SetVhtSupported().

Referenced by SendAssocResp(), SendOneBeacon(), and SendProbeResp().

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◆ GetVhtOperationalChannelWidth()

uint16_t ns3::ApWifiMac::GetVhtOperationalChannelWidth ( void ) const

Determine the VHT operational channel width (in MHz).

Returns: the VHT operational channel width (in MHz).

Definition at line 256 of file ap-wifi-mac.cc.

References ns3::WifiPhy::GetChannelWidth(), ns3::WifiRemoteStationManager::GetChannelWidthSupported(), ns3::WifiRemoteStationManager::GetVhtSupported(), ns3::RegularWifiMac::m_phy, m_staList, and ns3::RegularWifiMac::m_stationManager.

Referenced by GetVhtOperation().

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◆ Receive()

void ns3::ApWifiMac::Receive ( Ptr< WifiMacQueueItem > mpdu )

overrideprivatevirtual

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

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.

Parameters

mpdu	the MPDU that has been received.

Reimplemented from ns3::RegularWifiMac.

Definition at line 919 of file ap-wifi-mac.cc.

◆ SendAssocResp()

void ns3::ApWifiMac::SendAssocResp	(	Mac48Address	to,
		bool	success,
		bool	isReassoc
	)

private

Forward an association or a reassociation response 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

to	the address of the STA we are sending an association response to
success	indicates whether the association was successful or not
isReassoc	indicates whether it is a reassociation response

Definition at line 731 of file ap-wifi-mac.cc.

Referenced by Receive().

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◆ SendOneBeacon()

void ns3::ApWifiMac::SendOneBeacon ( void )

private

Forward a beacon packet to the beacon special DCF.

Definition at line 821 of file ap-wifi-mac.cc.

Referenced by DoInitialize(), and SetBeaconGeneration().

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◆ SendProbeResp()

void ns3::ApWifiMac::SendProbeResp ( Mac48Address to )

private

Forward a probe response 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

to	the address of the STA we are sending a probe response to

Definition at line 675 of file ap-wifi-mac.cc.

Referenced by Receive().

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◆ SetAddress()

void ns3::ApWifiMac::SetAddress ( Mac48Address address )

overridevirtual

Parameters

address the current address of this MAC layer.

Implements ns3::WifiMac.

Definition at line 136 of file ap-wifi-mac.cc.

References first::address, NS_LOG_FUNCTION, ns3::RegularWifiMac::SetAddress(), and ns3::RegularWifiMac::SetBssid().

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◆ SetBeaconGeneration()

void ns3::ApWifiMac::SetBeaconGeneration ( bool enable )

private

Enable or disable beacon generation of the AP.

Parameters

enable enable or disable beacon generation

Definition at line 146 of file ap-wifi-mac.cc.

References ns3::EventId::Cancel(), m_beaconEvent, m_enableBeaconGeneration, NS_LOG_FUNCTION, ns3::Simulator::ScheduleNow(), and SendOneBeacon().

Referenced by GetTypeId().

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◆ SetBeaconInterval()

void ns3::ApWifiMac::SetBeaconInterval ( Time interval )

Parameters

interval the interval between two beacon transmissions.

Definition at line 188 of file ap-wifi-mac.cc.

References ns3::Time::GetMicroSeconds(), m_beaconInterval, NS_FATAL_ERROR, and NS_LOG_FUNCTION.

Referenced by GetTypeId().

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◆ SetBufferStatus()

void ns3::ApWifiMac::SetBufferStatus	(	uint8_t	tid,
		Mac48Address	address,
		uint8_t	size
	)

Store the value of the Queue Size subfield of the last QoS Data or QoS Null frame received from the station with the given MAC address and belonging to the given TID.

Parameters

tid	the given TID
address	the given MAC address
size	the value of the Queue Size subfield

Definition at line 1424 of file ap-wifi-mac.cc.

References first::address, m_bufferStatus, and ns3::Simulator::Now().

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◆ SetLinkUpCallback()

void ns3::ApWifiMac::SetLinkUpCallback ( Callback< void > linkUp )

overridevirtual

Parameters

linkUp the callback to invoke when the link becomes up.

Implements ns3::WifiMac.

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

References NS_LOG_FUNCTION, and ns3::RegularWifiMac::SetLinkUpCallback().

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◆ SetWifiRemoteStationManager()

void ns3::ApWifiMac::SetWifiRemoteStationManager ( const Ptr< WifiRemoteStationManager > stationManager )

overridevirtual

Parameters

stationManager the station manager attached to this MAC.

Implements ns3::WifiMac.

Definition at line 168 of file ap-wifi-mac.cc.

References m_beaconTxop, NS_LOG_FUNCTION, ns3::Txop::SetWifiRemoteStationManager(), and ns3::RegularWifiMac::SetWifiRemoteStationManager().

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◆ SupportsSendFrom()

bool ns3::ApWifiMac::SupportsSendFrom ( void ) const

overridevirtual

Returns: if this MAC supports sending from arbitrary address.

The interface may or may not support sending from arbitrary address. This function returns true if sending from arbitrary address is supported, false otherwise.

Implements ns3::WifiMac.

Definition at line 373 of file ap-wifi-mac.cc.

References NS_LOG_FUNCTION.

◆ TxFailed()

void ns3::ApWifiMac::TxFailed	(	uint8_t	timeoutReason,
		Ptr< const WifiMacQueueItem >	mpdu,
		const WifiTxVector &	txVector
	)

private

The packet we sent was successfully received by the receiver (i.e.

we did not receive an Ack from the receiver). If the packet was an association response to the receiver, we record that the receiver is not associated with us yet.

Parameters

timeoutReason the reason why the TX timer was started (

See also: WifiTxTimer::Reason)

Parameters

mpdu	the MPDU that we failed to sent
txVector	the TX vector used to send the MPDU

Definition at line 905 of file ap-wifi-mac.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacHeader::IsAssocResp(), ns3::WifiMacHeader::IsReassocResp(), ns3::WifiRemoteStationManager::IsWaitAssocTxOk(), ns3::RegularWifiMac::m_stationManager, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::WifiRemoteStationManager::RecordGotAssocTxFailed().

Referenced by DoInitialize().

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◆ TxOk()

void ns3::ApWifiMac::TxOk ( Ptr< const WifiMacQueueItem > mpdu )

private

The packet we sent was successfully received by the receiver (i.e.

we received an Ack from the receiver). If the packet was an association response to the receiver, we record that the receiver is now associated with us.

Parameters

mpdu	the MPDU that we successfully sent

Definition at line 892 of file ap-wifi-mac.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacHeader::IsAssocResp(), ns3::WifiMacHeader::IsReassocResp(), ns3::WifiRemoteStationManager::IsWaitAssocTxOk(), ns3::RegularWifiMac::m_stationManager, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::WifiRemoteStationManager::RecordGotAssocTxOk().

Referenced by DoInitialize().

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◆ UpdateShortPreambleEnabled()

void ns3::ApWifiMac::UpdateShortPreambleEnabled ( void )

private

Update whether short preamble should be enabled or not in the BSS.

Typically, short preamble is enabled only when the AP and all associated stations support short PHY preamble. Otherwise, it is disabled.

Definition at line 233 of file ap-wifi-mac.cc.

References ns3::WifiRemoteStationManager::GetErpOfdmSupported(), ns3::RegularWifiMac::GetErpSupported(), ns3::WifiPhy::GetShortPhyPreambleSupported(), ns3::WifiRemoteStationManager::GetShortPreambleSupported(), ns3::RegularWifiMac::m_phy, m_shortPreambleEnabled, m_staList, ns3::RegularWifiMac::m_stationManager, and NS_LOG_FUNCTION.

Referenced by DoInitialize(), Receive(), and SendAssocResp().

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◆ UpdateShortSlotTimeEnabled()

void ns3::ApWifiMac::UpdateShortSlotTimeEnabled ( void )

private

Update whether short slot time should be enabled or not in the BSS.

Typically, short slot time is enabled only when there is no non-ERP station associated to the AP, and that short slot time is supported by the AP and by all other ERP stations that are associated to the AP. Otherwise, it is disabled.

Definition at line 211 of file ap-wifi-mac.cc.

References ns3::RegularWifiMac::GetErpSupported(), ns3::WifiRemoteStationManager::GetShortSlotTimeSupported(), ns3::RegularWifiMac::GetShortSlotTimeSupported(), m_numNonErpStations, m_shortSlotTimeEnabled, m_staList, ns3::RegularWifiMac::m_stationManager, and NS_LOG_FUNCTION.

Referenced by DoInitialize(), Receive(), and SendAssocResp().

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Member Data Documentation

◆ m_addressIdMap

std::unordered_map<Mac48Address, uint16_t, WifiAddressHash> ns3::ApWifiMac::m_addressIdMap

private

Maps MAC addresses of associated stations to their association ID.

Definition at line 311 of file ap-wifi-mac.h.

Referenced by ~ApWifiMac(), GetAssociationId(), Receive(), and SendAssocResp().

◆ m_assocLogger

TracedCallback<uint16_t , Mac48Address> ns3::ApWifiMac::m_assocLogger

private

association logger

Definition at line 335 of file ap-wifi-mac.h.

Referenced by GetTypeId(), and SendAssocResp().

◆ m_beaconEvent

EventId ns3::ApWifiMac::m_beaconEvent

private

Event to generate one beacon.

Definition at line 306 of file ap-wifi-mac.h.

Referenced by DoDispose(), DoInitialize(), SendOneBeacon(), and SetBeaconGeneration().

◆ m_beaconInterval

Time ns3::ApWifiMac::m_beaconInterval

private

Beacon interval.

Definition at line 305 of file ap-wifi-mac.h.

Referenced by GetBeaconInterval(), and SetBeaconInterval().

◆ m_beaconJitter

Ptr<UniformRandomVariable> ns3::ApWifiMac::m_beaconJitter

private

UniformRandomVariable used to randomize the time of the first beacon.

Definition at line 307 of file ap-wifi-mac.h.

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

◆ m_beaconTxop

Ptr<Txop> ns3::ApWifiMac::m_beaconTxop

private

Dedicated Txop for beacons.

Definition at line 303 of file ap-wifi-mac.h.

Referenced by ApWifiMac(), DoDispose(), DoInitialize(), SendOneBeacon(), and SetWifiRemoteStationManager().

◆ m_bsrLifetime

Time ns3::ApWifiMac::m_bsrLifetime

private

Lifetime of Buffer Status Reports.

Definition at line 317 of file ap-wifi-mac.h.

Referenced by GetBufferStatus(), and GetTypeId().

◆ m_bufferStatus

std::unordered_map<WifiAddressTidPair, bsrType, WifiAddressTidHash> ns3::ApWifiMac::m_bufferStatus

private

Per (MAC address, TID) buffer status reports.

Definition at line 325 of file ap-wifi-mac.h.

Referenced by GetBufferStatus(), and SetBufferStatus().

◆ m_deAssocLogger

TracedCallback<uint16_t , Mac48Address> ns3::ApWifiMac::m_deAssocLogger

private

deassociation logger

Definition at line 336 of file ap-wifi-mac.h.

Referenced by GetTypeId(), and Receive().

◆ m_enableBeaconGeneration

bool ns3::ApWifiMac::m_enableBeaconGeneration

private

Flag whether beacons are being generated.

Definition at line 304 of file ap-wifi-mac.h.

Referenced by DoDispose(), DoInitialize(), and SetBeaconGeneration().

◆ m_enableBeaconJitter

bool ns3::ApWifiMac::m_enableBeaconJitter

private

Flag whether the first beacon should be generated at random time.

Definition at line 308 of file ap-wifi-mac.h.

Referenced by DoInitialize(), and GetTypeId().

◆ m_enableNonErpProtection

bool ns3::ApWifiMac::m_enableNonErpProtection

private

Flag whether protection mechanism is used or not when non-ERP STAs are present within the BSS.

Definition at line 316 of file ap-wifi-mac.h.

Referenced by GetTypeId(), and GetUseNonErpProtection().

◆ m_numNonErpStations

uint16_t ns3::ApWifiMac::m_numNonErpStations

private

Number of non-ERP stations currently associated to the AP.

Definition at line 312 of file ap-wifi-mac.h.

Referenced by GetErpInformation(), GetUseNonErpProtection(), Receive(), SendAssocResp(), and UpdateShortSlotTimeEnabled().

◆ m_numNonHtStations

uint16_t ns3::ApWifiMac::m_numNonHtStations

private

Number of non-HT stations currently associated to the AP.

Definition at line 313 of file ap-wifi-mac.h.

Referenced by GetHtOperation(), Receive(), and SendAssocResp().

◆ m_shortPreambleEnabled

bool ns3::ApWifiMac::m_shortPreambleEnabled

private

Flag whether short preamble is enabled in the BSS.

Definition at line 315 of file ap-wifi-mac.h.

Referenced by GetCapabilities(), GetErpInformation(), SendOneBeacon(), SendProbeResp(), and UpdateShortPreambleEnabled().

◆ m_shortSlotTimeEnabled

bool ns3::ApWifiMac::m_shortSlotTimeEnabled

private

Flag whether short slot time is enabled within the BSS.

Definition at line 314 of file ap-wifi-mac.h.

Referenced by GetCapabilities(), SendOneBeacon(), SendProbeResp(), and UpdateShortSlotTimeEnabled().

◆ m_staList

std::map<uint16_t, Mac48Address> ns3::ApWifiMac::m_staList

private

Map of all stations currently associated to the AP with their association ID.

Definition at line 309 of file ap-wifi-mac.h.

Referenced by ~ApWifiMac(), GetHeOperation(), GetHtOperation(), GetNextAssociationId(), GetStaList(), GetVhtOperation(), GetVhtOperationalChannelWidth(), Receive(), SendAssocResp(), UpdateShortPreambleEnabled(), and UpdateShortSlotTimeEnabled().

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

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

Classes

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Config Paths

Attributes

Attributes defined in parent class ns3::RegularWifiMac

Attributes defined in parent class ns3::WifiMac

TraceSources

TraceSources defined in parent class ns3::RegularWifiMac

TraceSources defined in parent class ns3::WifiMac

Member Typedef Documentation

◆ AssociationCallback

Constructor & Destructor Documentation

◆ ApWifiMac()

◆ ~ApWifiMac()

Member Function Documentation

◆ AssignStreams()

◆ DeaggregateAmsduAndForward()

◆ DoDispose()

◆ DoInitialize()

◆ Enqueue() [1/2]

◆ Enqueue() [2/2]

◆ ForwardDown() [1/2]

◆ ForwardDown() [2/2]

◆ GetAssociationId()

◆ GetBeaconInterval()

◆ GetBufferStatus()

◆ GetCapabilities()

◆ GetDsssParameterSet()

◆ GetEdcaParameterSet()

◆ GetErpInformation()

◆ GetHeOperation()

◆ GetHtOperation()

◆ GetMaxBufferStatus()

◆ GetNextAssociationId()

◆ GetStaList()

◆ GetSupportedRates()

◆ GetTypeId()

◆ GetUseNonErpProtection()

◆ GetVhtOperation()

◆ GetVhtOperationalChannelWidth()

◆ Receive()

◆ SendAssocResp()

◆ SendOneBeacon()

◆ SendProbeResp()

◆ SetAddress()

◆ SetBeaconGeneration()

◆ SetBeaconInterval()

◆ SetBufferStatus()

◆ SetLinkUpCallback()

◆ SetWifiRemoteStationManager()

◆ SupportsSendFrom()

◆ TxFailed()

◆ TxOk()

◆ UpdateShortPreambleEnabled()

◆ UpdateShortSlotTimeEnabled()

Member Data Documentation

◆ m_addressIdMap

◆ m_assocLogger

◆ m_beaconEvent

◆ m_beaconInterval

◆ m_beaconJitter

◆ m_beaconTxop

◆ m_bsrLifetime

◆ m_bufferStatus

◆ m_deAssocLogger

◆ m_enableBeaconGeneration

◆ m_enableBeaconJitter

◆ m_enableNonErpProtection

◆ m_numNonErpStations

◆ m_numNonHtStations

◆ m_shortPreambleEnabled

◆ m_shortSlotTimeEnabled

◆ m_staList