This class manage the bandwidth request and grant mechanism. More...
#include "bandwidth-manager.h"
Public Member Functions | |
BandwidthManager (Ptr< WimaxNetDevice > device) | |
~BandwidthManager (void) | |
uint32_t | CalculateAllocationSize (const SSRecord *ssRecord, const ServiceFlow *serviceFlow) |
void | DoDispose (void) |
Destructor implementation. More... | |
uint32_t | GetSymbolsPerFrameAllocated (void) |
void | ProcessBandwidthRequest (const BandwidthRequestHeader &bwRequestHdr) |
ServiceFlow * | SelectFlowForRequest (uint32_t &bytesToRequest) |
void | SendBandwidthRequest (uint8_t uiuc, uint16_t allocationSize) |
void | SetSubframeRatio (void) |
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Object () | |
Constructor. More... | |
virtual | ~Object () |
Destructor. More... | |
void | AggregateObject (Ptr< Object > other) |
Aggregate two Objects together. More... | |
void | Dispose (void) |
Dispose of this Object. More... | |
AggregateIterator | GetAggregateIterator (void) const |
Get an iterator to the Objects aggregated to this one. More... | |
virtual TypeId | GetInstanceTypeId (void) const |
Implement the GetInstanceTypeId method defined in ObjectBase. More... | |
template<typename T > | |
Ptr< T > | GetObject (void) const |
Get a pointer to the requested aggregated Object. More... | |
template<typename T > | |
Ptr< T > | GetObject (TypeId tid) const |
Get a pointer to the requested aggregated Object by TypeId. More... | |
void | Initialize (void) |
Invoke DoInitialize on all Objects aggregated to this one. More... | |
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SimpleRefCount () | |
Constructor. More... | |
SimpleRefCount (const SimpleRefCount &o) | |
Copy constructor. More... | |
uint32_t | GetReferenceCount (void) const |
Get the reference count of the object. More... | |
SimpleRefCount & | operator= (const SimpleRefCount &o) |
Assignment. More... | |
void | Ref (void) const |
Increment the reference count. More... | |
void | Unref (void) const |
Decrement the reference count. More... | |
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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) |
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static TypeId | GetTypeId (void) |
Register this type. More... | |
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static void | Cleanup (void) |
Noop. More... | |
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static TypeId | GetTypeId (void) |
Get the type ID. More... | |
Private Member Functions | |
BandwidthManager (const BandwidthManager &) | |
BandwidthManager & | operator= (const BandwidthManager &) |
Private Attributes | |
Ptr< WimaxNetDevice > | m_device |
uint16_t | m_nrBwReqsSent |
Additional Inherited Members | |
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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... | |
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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... | |
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static TypeId | GetObjectIid (void) |
Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More... | |
This class manage the bandwidth request and grant mechanism.
The bandwidth request and grant mechanism is supported by the Bandwidth Manager. Both BS and SS maintain a bandwidth manager. Furthermore BS's bandwidth manager works together with the uplink scheduler to determine total bandwidth available and allocation size for each service flow. Bandwidth request mechanism is a key feature of the WiMAX scheduler since all three non-UGS services explicitly request for bandwidth by sending a bandwidth request to BS.
ns3::BandwidthManager is accessible through the following paths with Config::Set and Config::Connect:
No Attributes are defined for this type.
No TraceSources are defined for this type.
Size of this type is 48 bytes (on a 64-bit architecture).
Definition at line 54 of file bandwidth-manager.h.
ns3::BandwidthManager::BandwidthManager | ( | Ptr< WimaxNetDevice > | device | ) |
Definition at line 50 of file bandwidth-manager.cc.
ns3::BandwidthManager::~BandwidthManager | ( | void | ) |
Definition at line 56 of file bandwidth-manager.cc.
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private |
uint32_t ns3::BandwidthManager::CalculateAllocationSize | ( | const SSRecord * | ssRecord, |
const ServiceFlow * | serviceFlow | ||
) |
Definition at line 67 of file bandwidth-manager.cc.
References ns3::ServiceFlowRecord::GetGrantSize(), ns3::ServiceFlowRecord::GetGrantTimeStamp(), ns3::SSRecord::GetHasServiceFlowUgs(), ns3::SSRecord::GetPollMeBit(), ns3::ServiceFlow::GetRecord(), ns3::ServiceFlow::GetSchedulingType(), ns3::ServiceFlow::GetUnsolicitedGrantInterval(), ns3::ServiceFlow::GetUnsolicitedPollingInterval(), m_device, ns3::Simulator::Now(), NS_FATAL_ERROR, ns3::ServiceFlowRecord::SetGrantTimeStamp(), ns3::ServiceFlow::SF_TYPE_BE, ns3::ServiceFlow::SF_TYPE_NRTPS, ns3::ServiceFlow::SF_TYPE_RTPS, and ns3::ServiceFlow::SF_TYPE_UGS.
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virtual |
Destructor implementation.
This method is called by Dispose() or by the Object's destructor, whichever comes first.
Subclasses are expected to implement their real destruction code in an overriden version of this method and chain up to their parent's implementation once they are done. i.e, for simplicity, the destructor of every subclass should be empty and its content should be moved to the associated DoDispose() method.
It is safe to call GetObject() from within this method.
Reimplemented from ns3::Object.
Definition at line 61 of file bandwidth-manager.cc.
References m_device.
uint32_t ns3::BandwidthManager::GetSymbolsPerFrameAllocated | ( | void | ) |
Definition at line 218 of file bandwidth-manager.cc.
References m_device, and ns3::ServiceFlow::SF_TYPE_ALL.
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static |
Definition at line 42 of file bandwidth-manager.cc.
References ns3::TypeId::SetParent().
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private |
void ns3::BandwidthManager::ProcessBandwidthRequest | ( | const BandwidthRequestHeader & | bwRequestHdr | ) |
Definition at line 184 of file bandwidth-manager.cc.
References ns3::BandwidthRequestHeader::GetBr(), ns3::BandwidthRequestHeader::GetCid(), ns3::BandwidthRequestHeader::GetType(), ns3::BandwidthRequestHeader::HEADER_TYPE_INCREMENTAL, and m_device.
ServiceFlow * ns3::BandwidthManager::SelectFlowForRequest | ( | uint32_t & | bytesToRequest | ) |
Definition at line 127 of file bandwidth-manager.cc.
References ns3::ServiceFlow::GetQueue(), ns3::ServiceFlow::GetSchedulingType(), ns3::ServiceFlow::HasPackets(), ns3::MacHeaderType::HEADER_TYPE_GENERIC, m_device, ns3::ServiceFlow::SF_TYPE_ALL, ns3::ServiceFlow::SF_TYPE_BE, ns3::ServiceFlow::SF_TYPE_NRTPS, and ns3::ServiceFlow::SF_TYPE_RTPS.
Referenced by SendBandwidthRequest().
void ns3::BandwidthManager::SendBandwidthRequest | ( | uint8_t | uiuc, |
uint16_t | allocationSize | ||
) |
Definition at line 155 of file bandwidth-manager.cc.
References ns3::Packet::AddHeader(), ns3::ServiceFlow::GetConnection(), ns3::BandwidthRequestHeader::HEADER_TYPE_AGGREGATE, ns3::MacHeaderType::HEADER_TYPE_BANDWIDTH, m_device, m_nrBwReqsSent, NS_ASSERT_MSG, SelectFlowForRequest(), ns3::BandwidthRequestHeader::SetBr(), ns3::BandwidthRequestHeader::SetCid(), ns3::BandwidthRequestHeader::SetType(), and ns3::OfdmUlBurstProfile::UIUC_REQ_REGION_FULL.
Referenced by ns3::SubscriberStationNetDevice::ProcessUlMap().
void ns3::BandwidthManager::SetSubframeRatio | ( | void | ) |
Definition at line 204 of file bandwidth-manager.cc.
References m_device.
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private |
Definition at line 72 of file bandwidth-manager.h.
Referenced by CalculateAllocationSize(), DoDispose(), GetSymbolsPerFrameAllocated(), ProcessBandwidthRequest(), SelectFlowForRequest(), SendBandwidthRequest(), and SetSubframeRatio().
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private |
Definition at line 73 of file bandwidth-manager.h.
Referenced by SendBandwidthRequest().