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A Discrete-Event Network Simulator
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API |
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A Discrete-Event Network Simulator
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API |
Airtime link metric calculator. More...
#include "airtime-metric.h"
Inheritance diagram for ns3::dot11s::AirtimeLinkMetricCalculator: Collaboration diagram for ns3::dot11s::AirtimeLinkMetricCalculator:Public Member Functions | |
| AirtimeLinkMetricCalculator () | |
| uint32_t | CalculateMetric (Mac48Address peerAddress, Ptr< MeshWifiInterfaceMac > mac) |
| Airtime link metric is defined in Section 13.9 of IEEE 802.11-2012 as: More... | |
| 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::Object | |
| static TypeId | GetTypeId () |
| Register this type. More... | |
| Static Public Member Functions inherited from ns3::ObjectBase | |
| static TypeId | GetTypeId () |
| Get the type ID. More... | |
Private Member Functions | |
| void | SetHeaderTid (uint8_t tid) |
| Set header TID from the Dot11MetricTid attribute. More... | |
| void | SetTestLength (uint16_t testLength) |
| Set number of bytes in test frame (a constant 1024 in the standard) More... | |
Private Attributes | |
| Ptr< Packet > | m_testFrame |
| test frame More... | |
| WifiMacHeader | m_testHeader |
| test header More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from ns3::Object | |
| Object (const Object &o) | |
| Copy an Object. More... | |
| virtual void | DoDispose () |
| Destructor implementation. More... | |
| virtual void | DoInitialize () |
| Initialize() implementation. 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... | |
| Related Functions inherited from ns3::ObjectBase | |
| static TypeId | GetObjectIid () |
| Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More... | |
Airtime link metric calculator.
Airtime link metric is defined in 11B.10 of 802.11s Draft D3.0 as:
airtime = (O + Bt/r)* (1 + average retry counter), where:
Final result is expressed in units of 0.01 Time Unit = 10.24 us (as required by 802.11s draft)
Definition at line 45 of file airtime-metric.h.
| ns3::dot11s::AirtimeLinkMetricCalculator::AirtimeLinkMetricCalculator | ( | ) |
Definition at line 51 of file airtime-metric.cc.
| uint32_t ns3::dot11s::AirtimeLinkMetricCalculator::CalculateMetric | ( | Mac48Address | peerAddress, |
| Ptr< MeshWifiInterfaceMac > | mac | ||
| ) |
Airtime link metric is defined in Section 13.9 of IEEE 802.11-2012 as:
airtime = (O + Bt/r) / (1 - frame error rate), where o – the PHY dependent channel access which includes frame headers, training sequences, access protocol frames, etc. bt – the test packet length in bits (8192 by default), r – the current bitrate of the packet,
Final result is expressed encoded as an unsigned integer in units of 0.01 TU = 10.24 us
| peerAddress | The peer MAC address |
| mac | The MAC layer |
Definition at line 71 of file airtime-metric.cc.
References ns3::Packet::GetSize(), ns3::Mac48Address::IsGroup(), m_testFrame, m_testHeader, third::mac, NS_ASSERT, ns3::WifiTxVector::SetMode(), ns3::WifiTxVector::SetPreambleType(), and ns3::WIFI_PREAMBLE_LONG.
Referenced by ns3::dot11s::HwmpProtocol::Install().
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Get the type ID.
Definition at line 31 of file airtime-metric.cc.
References ns3::MakeUintegerAccessor(), SetHeaderTid(), ns3::TypeId::SetParent(), and SetTestLength().
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Set header TID from the Dot11MetricTid attribute.
| tid | the header TID to use to calculate data rate |
Definition at line 56 of file airtime-metric.cc.
References m_testHeader, ns3::WifiMacHeader::SetDsFrom(), ns3::WifiMacHeader::SetDsTo(), ns3::WifiMacHeader::SetQosTid(), ns3::WifiMacHeader::SetType(), and ns3::WIFI_MAC_DATA.
Referenced by GetTypeId().
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private |
Set number of bytes in test frame (a constant 1024 in the standard)
| testLength | the test length in bits |
Definition at line 65 of file airtime-metric.cc.
References m_testFrame.
Referenced by GetTypeId().
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Definition at line 84 of file airtime-metric.h.
Referenced by CalculateMetric(), and SetTestLength().
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test header
Definition at line 85 of file airtime-metric.h.
Referenced by CalculateMetric(), and SetHeaderTid().
1.9.1 
