A Discrete-Event Network Simulator
API
ns3::WifiDefaultAckManager Class Reference

WifiDefaultAckManager is the default ack manager. More...

#include "wifi-default-ack-manager.h"

+ Inheritance diagram for ns3::WifiDefaultAckManager:
+ Collaboration diagram for ns3::WifiDefaultAckManager:

Public Member Functions

 WifiDefaultAckManager ()
 
virtual ~WifiDefaultAckManager ()
 
uint16_t GetMaxDistFromStartingSeq (Ptr< const WifiMacQueueItem > mpdu, const WifiTxParameters &txParams) const
 Get the maximum distance between the starting sequence number of the Block Ack agreement which the given MPDU belongs to and each of the sequence numbers of the given MPDU and of all the QoS data frames included in the given TX parameters. More...
 
virtual std::unique_ptr< WifiAcknowledgmentTryAddMpdu (Ptr< const WifiMacQueueItem > mpdu, const WifiTxParameters &txParams)
 Determine the acknowledgment method to use if the given MPDU is added to the current frame. More...
 
virtual std::unique_ptr< WifiAcknowledgmentTryAggregateMsdu (Ptr< const WifiMacQueueItem > msdu, const WifiTxParameters &txParams)
 Determine the acknowledgment method to use if the given MSDU is aggregated to the current frame. More...
 
- Public Member Functions inherited from ns3::WifiAckManager
virtual ~WifiAckManager ()
 
void SetWifiMac (Ptr< RegularWifiMac > mac)
 Set the MAC which is using this Acknowledgment Manager. 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<typename T >
Ptr< T > GetObject (void) const
 Get a pointer to the requested aggregated Object. More...
 
template<typename T >
Ptr< T > GetObject (TypeId tid) const
 Get a pointer to the requested aggregated Object by TypeId. More...
 
template<>
Ptr< ObjectGetObject () const
 Specialization of () for objects of type ns3::Object. More...
 
template<>
Ptr< ObjectGetObject (TypeId tid) const
 Specialization of (TypeId tid) for objects of type ns3::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...
 
SimpleRefCountoperator= (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::WifiAckManager
static TypeId GetTypeId (void)
 Get the type ID. More...
 
static void SetQosAckPolicy (Ptr< WifiMacQueueItem > item, const WifiAcknowledgment *acknowledgment)
 Set the QoS Ack policy for the given MPDU, which must be a QoS data frame. More...
 
static void SetQosAckPolicy (Ptr< WifiPsdu > psdu, const WifiAcknowledgment *acknowledgment)
 Set the QoS Ack policy for the given PSDU, which must include at least a QoS data frame. More...
 
- Static Public Member Functions inherited from ns3::Object
static TypeId GetTypeId (void)
 Register this type. More...
 
- Static Public Member Functions inherited from ns3::ObjectBase
static TypeId GetTypeId (void)
 Get the type ID. More...
 

Protected Member Functions

bool IsResponseNeeded (Ptr< const WifiMacQueueItem > mpdu, const WifiTxParameters &txParams) const
 Determine whether the (A-)MPDU containing the given MPDU and the MPDUs (if any) included in the given TX parameters requires an immediate response (Normal Ack, Block Ack or Block Ack Request followed by Block Ack). More...
 
- Protected Member Functions inherited from ns3::WifiAckManager
virtual void DoDispose (void)
 Destructor implementation. More...
 
- Protected Member Functions inherited from ns3::Object
 Object (const Object &o)
 Copy an Object. More...
 
virtual void DoInitialize (void)
 Initialize() implementation. More...
 
virtual void NotifyNewAggregate (void)
 Notify all Objects aggregated to this one of a new Object being aggregated. More...
 
- Protected Member Functions inherited from ns3::ObjectBase
void ConstructSelf (const AttributeConstructionList &attributes)
 Complete construction of ObjectBase; invoked by derived classes. More...
 
virtual void NotifyConstructionCompleted (void)
 Notifier called once the ObjectBase is fully constructed. More...
 

Private Member Functions

virtual std::unique_ptr< WifiAcknowledgmentGetAckInfoIfAggregatedMuBar (Ptr< const WifiMacQueueItem > mpdu, const WifiTxParameters &txParams)
 Compute the information about the acknowledgment of the current multi-user frame (as described by the given TX parameters) if the given MPDU is added. More...
 
virtual std::unique_ptr< WifiAcknowledgmentGetAckInfoIfBarBaSequence (Ptr< const WifiMacQueueItem > mpdu, const WifiTxParameters &txParams)
 Compute the information about the acknowledgment of the current multi-user frame (as described by the given TX parameters) if the given MPDU is added. More...
 
virtual std::unique_ptr< WifiAcknowledgmentGetAckInfoIfTfMuBar (Ptr< const WifiMacQueueItem > mpdu, const WifiTxParameters &txParams)
 Compute the information about the acknowledgment of the current multi-user frame (as described by the given TX parameters) if the given MPDU is added. More...
 

Private Attributes

double m_baThreshold
 Threshold to determine when a BlockAck must be requested. More...
 
WifiAcknowledgment::Method m_dlMuAckType
 Type of the ack sequence for DL MU PPDUs. More...
 
uint8_t m_maxMcsForBlockAckInTbPpdu
 Max MCS used to send a BlockAck in a TB PPDU. More...
 
bool m_useExplicitBar
 true for sending BARs, false for using Implicit BAR policy More...
 

Additional Inherited Members

- Protected Attributes inherited from ns3::WifiAckManager
Ptr< RegularWifiMacm_mac
 MAC which is using this Acknowledgment Manager. More...
 

Detailed Description

WifiDefaultAckManager is the default ack manager.


Introspection did not find any typical Config paths.


Attributes

  • UseExplicitBar: Specify whether to send Block Ack Requests (if true) or use Implicit Block Ack Request ack policy (if false).
    • Set with class: BooleanValue
    • Underlying type: bool
    • Initial value: false
    • Flags: construct write read
  • BaThreshold: Immediate acknowledgment is requested upon transmission of a frame whose sequence number is distant at least BaThreshold multiplied by the transmit window size from the starting sequence number of the transmit window. Set to zero to request a response for every transmitted frame.
    • Set with class: ns3::DoubleValue
    • Underlying type: double 0:1
    • Initial value: 0
    • Flags: construct write read
  • DlMuAckSequenceType: Type of the acknowledgment sequence for DL MU PPDUs.
    • Set with class: ns3::EnumValue
    • Underlying type:
    • Initial value: DL_MU_BAR_BA_SEQUENCE
    • Flags: construct write read
  • MaxBlockAckMcs: The MCS used to send a BlockAck in a TB PPDU is the minimum between the MCS used for the PSDU sent in the preceding DL MU PPDU and the value of this attribute.
    • Set with class: ns3::UintegerValue
    • Underlying type: uint8_t 0:11
    • Initial value: 5
    • Flags: construct write read

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

Definition at line 37 of file wifi-default-ack-manager.h.

Constructor & Destructor Documentation

◆ WifiDefaultAckManager()

ns3::WifiDefaultAckManager::WifiDefaultAckManager ( )

Definition at line 79 of file wifi-default-ack-manager.cc.

References NS_LOG_FUNCTION.

◆ ~WifiDefaultAckManager()

ns3::WifiDefaultAckManager::~WifiDefaultAckManager ( )
virtual

Definition at line 84 of file wifi-default-ack-manager.cc.

References NS_LOG_FUNCTION_NOARGS.

Member Function Documentation

◆ GetAckInfoIfAggregatedMuBar()

std::unique_ptr< WifiAcknowledgment > ns3::WifiDefaultAckManager::GetAckInfoIfAggregatedMuBar ( Ptr< const WifiMacQueueItem mpdu,
const WifiTxParameters txParams 
)
privatevirtual

Compute the information about the acknowledgment of the current multi-user frame (as described by the given TX parameters) if the given MPDU is added.

If the computed information is the same as the current one, a null pointer is returned. Otherwise, the computed information is returned. This method can only be called if the selected acknowledgment method for DL multi-user frames consists of MU-BAR Trigger Frames aggregated to the PSDUs of the MU PPDU.

Parameters
mpduthe given MPDU
txParamsthe TX parameters describing the current multi-user frame
Returns
the new acknowledgment method or a null pointer if the acknowledgment method is unchanged

Definition at line 512 of file wifi-default-ack-manager.cc.

References ns3::WifiAcknowledgment::DL_MU_AGGREGATE_TF, ns3::WifiMacHeader::GetAddr1(), ns3::QosTxop::GetBaManager(), ns3::QosTxop::GetBlockAckReqType(), ns3::QosTxop::GetBlockAckType(), ns3::WifiTxVector::GetChannelWidth(), ns3::WifiTxVector::GetGuardInterval(), ns3::HePhy::GetHeMcs(), ns3::WifiTxVector::GetHeMuUserInfo(), ns3::GetMuBarSize(), ns3::WifiTxParameters::GetPsduInfo(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiTxVector::IsDlMu(), ns3::WifiMacHeader::IsQosData(), ns3::WifiTxParameters::m_acknowledgment, m_dlMuAckType, ns3::WifiAckManager::m_mac, m_maxMcsForBlockAckInTbPpdu, ns3::WifiTxParameters::m_txVector, min, ns3::WifiMacHeader::NO_EXPLICIT_ACK, NS_ABORT_MSG_IF, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::QosUtilsMapTidToAc(), ns3::WifiTxVector::SetChannelWidth(), ns3::WifiTxVector::SetGuardInterval(), ns3::WifiTxVector::SetHeMuUserInfo(), ns3::WifiTxVector::SetPreambleType(), ns3::WifiAcknowledgment::SetQosAckPolicy(), ns3::WifiDlMuAggregateTf::stationsReplyingWithBlockAck, and ns3::WIFI_PREAMBLE_HE_TB.

Referenced by TryAddMpdu().

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◆ GetAckInfoIfBarBaSequence()

std::unique_ptr< WifiAcknowledgment > ns3::WifiDefaultAckManager::GetAckInfoIfBarBaSequence ( Ptr< const WifiMacQueueItem mpdu,
const WifiTxParameters txParams 
)
privatevirtual

Compute the information about the acknowledgment of the current multi-user frame (as described by the given TX parameters) if the given MPDU is added.

If the computed information is the same as the current one, a null pointer is returned. Otherwise, the computed information is returned. This method can only be called if the selected acknowledgment method for DL multi-user frames consists of a sequence of BlockAckReq and BlockAck frames.

Parameters
mpduthe given MPDU
txParamsthe TX parameters describing the current multi-user frame
Returns
the new acknowledgment method or a null pointer if the acknowledgment method is unchanged

Definition at line 299 of file wifi-default-ack-manager.cc.

References ns3::WifiMacHeader::BLOCK_ACK, ns3::WifiAcknowledgment::DL_MU_BAR_BA_SEQUENCE, ns3::WifiMacHeader::GetAddr1(), ns3::QosTxop::GetBaManager(), ns3::QosTxop::GetBlockAckReqType(), ns3::QosTxop::GetBlockAckType(), ns3::WifiTxParameters::GetPsduInfo(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiTxVector::IsDlMu(), ns3::WifiMacHeader::IsQosData(), ns3::WifiTxParameters::m_acknowledgment, m_dlMuAckType, ns3::WifiAckManager::m_mac, ns3::WifiTxParameters::m_txVector, ns3::WifiMacHeader::NORMAL_ACK, NS_ABORT_MSG_IF, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::QosUtilsMapTidToAc(), ns3::WifiAcknowledgment::SetQosAckPolicy(), ns3::WifiDlMuBarBaSequence::stationsReplyingWithBlockAck, ns3::WifiDlMuBarBaSequence::stationsReplyingWithNormalAck, and ns3::WifiDlMuBarBaSequence::stationsSendBlockAckReqTo.

Referenced by TryAddMpdu().

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◆ GetAckInfoIfTfMuBar()

std::unique_ptr< WifiAcknowledgment > ns3::WifiDefaultAckManager::GetAckInfoIfTfMuBar ( Ptr< const WifiMacQueueItem mpdu,
const WifiTxParameters txParams 
)
privatevirtual

Compute the information about the acknowledgment of the current multi-user frame (as described by the given TX parameters) if the given MPDU is added.

If the computed information is the same as the current one, a null pointer is returned. Otherwise, the computed information is returned. This method can only be called if the selected acknowledgment method for DL multi-user frames consists of a MU-BAR Trigger Frame sent as single-user frame.

Parameters
mpduthe given MPDU
txParamsthe TX parameters describing the current multi-user frame
Returns
the new acknowledgment method or a null pointer if the acknowledgment method is unchanged

Definition at line 428 of file wifi-default-ack-manager.cc.

References ns3::WifiDlMuTfMuBar::barTypes, ns3::WifiMacHeader::BLOCK_ACK, ns3::WifiAcknowledgment::DL_MU_TF_MU_BAR, ns3::WifiMacHeader::GetAddr1(), ns3::QosTxop::GetBaManager(), ns3::QosTxop::GetBlockAckReqType(), ns3::QosTxop::GetBlockAckType(), ns3::WifiTxVector::GetChannelWidth(), ns3::WifiTxVector::GetGuardInterval(), ns3::HePhy::GetHeMcs(), ns3::WifiTxVector::GetHeMuUserInfo(), ns3::WifiTxParameters::GetPsduInfo(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiTxVector::IsDlMu(), ns3::WifiMacHeader::IsQosData(), ns3::WifiTxParameters::m_acknowledgment, m_dlMuAckType, ns3::WifiAckManager::m_mac, m_maxMcsForBlockAckInTbPpdu, ns3::WifiTxParameters::m_txVector, min, ns3::WifiDlMuTfMuBar::muBarTxVector, NS_ABORT_MSG_IF, NS_ASSERT, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::QosUtilsMapTidToAc(), ns3::WifiTxVector::SetChannelWidth(), ns3::WifiTxVector::SetGuardInterval(), ns3::WifiTxVector::SetHeMuUserInfo(), ns3::WifiTxVector::SetPreambleType(), ns3::WifiAcknowledgment::SetQosAckPolicy(), ns3::WifiDlMuTfMuBar::stationsReplyingWithBlockAck, and ns3::WIFI_PREAMBLE_HE_TB.

Referenced by TryAddMpdu().

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◆ GetMaxDistFromStartingSeq()

uint16_t ns3::WifiDefaultAckManager::GetMaxDistFromStartingSeq ( Ptr< const WifiMacQueueItem mpdu,
const WifiTxParameters txParams 
) const

Get the maximum distance between the starting sequence number of the Block Ack agreement which the given MPDU belongs to and each of the sequence numbers of the given MPDU and of all the QoS data frames included in the given TX parameters.

Parameters
mpduthe given MPDU
txParamsthe given TX parameters
Returns
the maximum distance between the starting sequence number of the Block Ack agreement which the given MPDU belongs to and each of the sequence numbers of the given MPDU and of all the QoS data frames included in the given TX parameters

Definition at line 90 of file wifi-default-ack-manager.cc.

References ns3::WifiMacHeader::GetAddr1(), ns3::QosTxop::GetBaAgreementEstablished(), ns3::QosTxop::GetBaStartingSequence(), ns3::WifiTxParameters::GetPsduInfo(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiAckManager::m_mac, NS_ABORT_MSG_IF, NS_LOG_DEBUG, NS_LOG_FUNCTION, ns3::QosUtilsIsOldPacket(), ns3::SEQNO_SPACE_HALF_SIZE, ns3::SEQNO_SPACE_SIZE, and ns3::WifiTxParameters::PsduInfo::seqNumbers.

Referenced by IsResponseNeeded().

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◆ GetTypeId()

◆ IsResponseNeeded()

bool ns3::WifiDefaultAckManager::IsResponseNeeded ( Ptr< const WifiMacQueueItem mpdu,
const WifiTxParameters txParams 
) const
protected

Determine whether the (A-)MPDU containing the given MPDU and the MPDUs (if any) included in the given TX parameters requires an immediate response (Normal Ack, Block Ack or Block Ack Request followed by Block Ack).

Parameters
mpduthe given MPDU.
txParamsthe given TX parameters.
Returns
true if the given PSDU requires an immediate response

Definition at line 134 of file wifi-default-ack-manager.cc.

References ns3::QosTxop::GetBaBufferSize(), ns3::QosTxop::GetBaManager(), GetMaxDistFromStartingSeq(), ns3::QosTxop::GetRemainingTxop(), ns3::Txop::GetTxopLimit(), ns3::Txop::GetWifiMacQueue(), ns3::Time::IsStrictlyPositive(), m_baThreshold, ns3::WifiAckManager::m_mac, ns3::WifiTxParameters::m_protection, NS_LOG_FUNCTION, and ns3::WifiProtection::RTS_CTS.

Referenced by TryAddMpdu().

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◆ TryAddMpdu()

std::unique_ptr< WifiAcknowledgment > ns3::WifiDefaultAckManager::TryAddMpdu ( Ptr< const WifiMacQueueItem mpdu,
const WifiTxParameters txParams 
)
virtual

Determine the acknowledgment method to use if the given MPDU is added to the current frame.

Return a null pointer if the acknowledgment method is unchanged or the new acknowledgment method otherwise.

Parameters
mpduthe MPDU to be added to the current frame
txParamsthe current TX parameters for the current frame
Returns
a null pointer if the acknowledgment method is unchanged or the new acknowledgment method otherwise

Implements ns3::WifiAckManager.

Definition at line 166 of file wifi-default-ack-manager.cc.

References ns3::WifiNormalAck::ackTxVector, ns3::WifiAcknowledgment::BAR_BLOCK_ACK, ns3::WifiBarBlockAck::barType, ns3::WifiBlockAck::baType, ns3::WifiBarBlockAck::baType, ns3::WifiAcknowledgment::BLOCK_ACK, ns3::WifiMacHeader::BLOCK_ACK, ns3::WifiBarBlockAck::blockAckReqTxVector, ns3::WifiBlockAck::blockAckTxVector, ns3::WifiBarBlockAck::blockAckTxVector, ns3::WifiAcknowledgment::DL_MU_AGGREGATE_TF, ns3::WifiAcknowledgment::DL_MU_BAR_BA_SEQUENCE, ns3::WifiAcknowledgment::DL_MU_TF_MU_BAR, GetAckInfoIfAggregatedMuBar(), GetAckInfoIfBarBaSequence(), GetAckInfoIfTfMuBar(), ns3::WifiMacHeader::GetAddr1(), ns3::WifiMacHeader::GetQosTid(), ns3::WifiMacHeader::GetSequenceNumber(), ns3::WifiTxParameters::GetSize(), ns3::GetTid(), ns3::WifiMacHeader::IsBlockAckReq(), ns3::WifiTxVector::IsDlMu(), ns3::Mac48Address::IsGroup(), ns3::WifiMacHeader::IsQosData(), IsResponseNeeded(), ns3::WifiTxParameters::m_acknowledgment, m_dlMuAckType, ns3::WifiAckManager::m_mac, ns3::WifiTxParameters::m_txVector, m_useExplicitBar, ns3::WifiMacHeader::NO_ACK, ns3::WifiAcknowledgment::NONE, ns3::WifiMacHeader::NORMAL_ACK, NS_ABORT_MSG, NS_ABORT_MSG_IF, NS_LOG_DEBUG, NS_LOG_FUNCTION, and ns3::WifiAcknowledgment::SetQosAckPolicy().

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◆ TryAggregateMsdu()

std::unique_ptr< WifiAcknowledgment > ns3::WifiDefaultAckManager::TryAggregateMsdu ( Ptr< const WifiMacQueueItem msdu,
const WifiTxParameters txParams 
)
virtual

Determine the acknowledgment method to use if the given MSDU is aggregated to the current frame.

Return a null pointer if the acknowledgment method is unchanged or the new acknowledgment method otherwise.

Parameters
msduthe MSDU to be aggregated to the current frame
txParamsthe current TX parameters for the current frame
Returns
a null pointer if the acknowledgment method is unchanged or the new acknowledgment method otherwise

Implements ns3::WifiAckManager.

Definition at line 289 of file wifi-default-ack-manager.cc.

References NS_LOG_FUNCTION.

Member Data Documentation

◆ m_baThreshold

double ns3::WifiDefaultAckManager::m_baThreshold
private

Threshold to determine when a BlockAck must be requested.

Definition at line 132 of file wifi-default-ack-manager.h.

Referenced by GetTypeId(), and IsResponseNeeded().

◆ m_dlMuAckType

WifiAcknowledgment::Method ns3::WifiDefaultAckManager::m_dlMuAckType
private

Type of the ack sequence for DL MU PPDUs.

Definition at line 133 of file wifi-default-ack-manager.h.

Referenced by GetAckInfoIfAggregatedMuBar(), GetAckInfoIfBarBaSequence(), GetAckInfoIfTfMuBar(), GetTypeId(), and TryAddMpdu().

◆ m_maxMcsForBlockAckInTbPpdu

uint8_t ns3::WifiDefaultAckManager::m_maxMcsForBlockAckInTbPpdu
private

Max MCS used to send a BlockAck in a TB PPDU.

Definition at line 134 of file wifi-default-ack-manager.h.

Referenced by GetAckInfoIfAggregatedMuBar(), GetAckInfoIfTfMuBar(), and GetTypeId().

◆ m_useExplicitBar

bool ns3::WifiDefaultAckManager::m_useExplicitBar
private

true for sending BARs, false for using Implicit BAR policy

Definition at line 131 of file wifi-default-ack-manager.h.

Referenced by GetTypeId(), and TryAddMpdu().


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