helper class for Satellite Beam Scheduler. More...

#include "satellite-default-superframe-allocator.h"

Inheritance diagram for ns3::SatDefaultSuperframeAllocator:

Collaboration diagram for ns3::SatDefaultSuperframeAllocator:

Public Member Functions
	SatDefaultSuperframeAllocator (Ptr< SatSuperframeConf > superFrameConf)
	Construct SatDefaultSuperframeAllocator.
	~SatDefaultSuperframeAllocator ()
	Destruct SatDefaultSuperframeAllocator.
void	GenerateTimeSlots (SatFrameAllocator::TbtpMsgContainer_t &tbtpContainer, uint32_t maxSizeInBytes, SatFrameAllocator::UtAllocInfoContainer_t &utAllocContainer, TracedCallback< uint32_t > waveformTrace, TracedCallback< uint32_t, uint32_t > utLoadTrace, TracedCallback< uint32_t, double > loadTrace)
	Generate time slots in TBTP(s) for the UT/RC.
void	PreAllocateSymbols (SatFrameAllocator::SatFrameAllocContainer_t &allocReqs)
	Preallocate symbols for given to UTs in superframe.
void	ReleaseMinimumRate (uint32_t minimumRateBytes, bool controlSlotsEnabled)
	Release minimum rate from the allocator.
void	ReserveMinimumRate (uint32_t minimumRateBytes, bool controlSlotsEnabled)
	Reserve minimum rate from the allocator.
Public Member Functions inherited from ns3::SatSuperframeAllocator
	SatSuperframeAllocator (Ptr< SatSuperframeConf > superFrameConf)
	Construct SatSuperframeAllocator.
virtual	~SatSuperframeAllocator ()
	Destruct SatSuperframeAllocator.
Time	GetSuperframeDuration () const
	Get super frame duration.

Static Public Member Functions
static TypeId	GetTypeId (void)
	derived from object
Static Public Member Functions inherited from ns3::SatSuperframeAllocator
static TypeId	GetTypeId (void)
	derived from object

Private Types
typedef std::vector< Ptr< SatFrameAllocator > >	FrameAllocatorContainer_t
	Container for SatFrameInfo items.
typedef std::map< Ptr< SatFrameAllocator >, uint32_t >	SupportedFramesMap_t
	Container for the supported SatFrameAllocator (frames).

Private Member Functions
bool	AllocateBasedOnCc (SatFrameAllocator::CcLevel_t ccLevel, SatFrameAllocator::SatFrameAllocReq *allocReq, const SupportedFramesMap_t &frames)
	Allocate given request according to type.
bool	AllocateToFrame (SatFrameAllocator::SatFrameAllocReq *allocReq)
	Allocate a request to a frame.
void	RemoveAllocations ()
	Remove allocations from all frames maintained by frame allocator.
Ptr< SatFrameAllocator >	SelectBestCarrier (double cno, uint32_t &bestWaveFormId)
	Select which carrier is the best suited for handling requests of a terminal communicating at the given C/N0.
void	SelectCarriers (SatFrameAllocator::SatFrameAllocContainer_t &allocReqs)
	Select which carriers to use from the underlying frames.

Private Attributes
bool	m_fcaEnabled
FrameAllocatorContainer_t	m_frameAllocators
uint32_t	m_minCarrierPayloadInBytes
uint32_t	m_minimumRateBasedBytesLeft
uint32_t	m_mostRobustSlotPayloadInBytes
bool	m_rcBasedAllocationEnabled
double	m_targetLoad
double	m_totalBandwidth

Additional Inherited Members
Protected Attributes inherited from ns3::SatSuperframeAllocator
Ptr< SatSuperframeConf >	m_superframeConf

Detailed Description

helper class for Satellite Beam Scheduler.

SatDefaultSuperframeAllocator class is used by SatBeamScheduler to maintain information of the pre-allocated symbols per Capacity Category (CC) in frame. It also knows physical constrains of the frames.

SatDefaultSuperframeAllocator is created and used by SatBeamScheduler.

Definition at line 54 of file satellite-default-superframe-allocator.h.

Member Typedef Documentation

◆ FrameAllocatorContainer_t

typedef std::vector<Ptr<SatFrameAllocator> > ns3::SatDefaultSuperframeAllocator::FrameAllocatorContainer_t

private

Container for SatFrameInfo items.

Definition at line 117 of file satellite-default-superframe-allocator.h.

◆ SupportedFramesMap_t

typedef std::map<Ptr<SatFrameAllocator>, uint32_t> ns3::SatDefaultSuperframeAllocator::SupportedFramesMap_t

private

Container for the supported SatFrameAllocator (frames).

Definition at line 122 of file satellite-default-superframe-allocator.h.

Constructor & Destructor Documentation

◆ SatDefaultSuperframeAllocator()

ns3::SatDefaultSuperframeAllocator::SatDefaultSuperframeAllocator ( Ptr< SatSuperframeConf > superFrameConf )

Construct SatDefaultSuperframeAllocator.

Parameters

superFrameConf Super frame configuration

Definition at line 68 of file satellite-default-superframe-allocator.cc.

References ns3::SatSuperframeAllocator::SatSuperframeAllocator(), m_fcaEnabled, m_frameAllocators, m_minCarrierPayloadInBytes, m_minimumRateBasedBytesLeft, m_mostRobustSlotPayloadInBytes, m_rcBasedAllocationEnabled, m_targetLoad, and m_totalBandwidth.

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◆ ~SatDefaultSuperframeAllocator()

ns3::SatDefaultSuperframeAllocator::~SatDefaultSuperframeAllocator ( )

Destruct SatDefaultSuperframeAllocator.

Definition at line 131 of file satellite-default-superframe-allocator.cc.

Member Function Documentation

◆ AllocateBasedOnCc()

bool ns3::SatDefaultSuperframeAllocator::AllocateBasedOnCc	(	SatFrameAllocator::CcLevel_t	ccLevel,
		SatFrameAllocator::SatFrameAllocReq *	allocReq,
		const SupportedFramesMap_t &	frames )

private

Allocate given request according to type.

Parameters

ccLevel	CC level of the request
allocReq	Requested bytes
frames	Information of the possibles frames to allocate.

Returns

Definition at line 458 of file satellite-default-superframe-allocator.cc.

Referenced by AllocateToFrame().

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◆ AllocateToFrame()

bool ns3::SatDefaultSuperframeAllocator::AllocateToFrame ( SatFrameAllocator::SatFrameAllocReq * allocReq )

private

Allocate a request to a frame.

Parameters

allocReq Allocation request parameters for RC/CCs

Returns: true when allocation is successful, false otherwise

Definition at line 401 of file satellite-default-superframe-allocator.cc.

References AllocateBasedOnCc(), ns3::SatFrameAllocator::CC_LEVEL_CRA, ns3::SatFrameAllocator::CC_LEVEL_CRA_MIN_RBDC, ns3::SatFrameAllocator::CC_LEVEL_CRA_RBDC, ns3::SatFrameAllocator::CC_LEVEL_CRA_RBDC_VBDC, ns3::SatFrameAllocator::SatFrameAllocReq::m_cno, and m_frameAllocators.

Referenced by PreAllocateSymbols().

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◆ GenerateTimeSlots()

void ns3::SatDefaultSuperframeAllocator::GenerateTimeSlots	(	SatFrameAllocator::TbtpMsgContainer_t &	tbtpContainer,
		uint32_t	maxSizeInBytes,
		SatFrameAllocator::UtAllocInfoContainer_t &	utAllocContainer,
		TracedCallback< uint32_t >	waveformTrace,
		TracedCallback< uint32_t, uint32_t >	utLoadTrace,
		TracedCallback< uint32_t, double >	loadTrace )

virtual

Generate time slots in TBTP(s) for the UT/RC.

Parameters

tbtpContainer	TBTP message container to add/fill TBTPs.
maxSizeInBytes	Maximum size for a TBTP message.
utAllocContainer	Reference to UT allocation container to fill in info of the allocation
waveformTrace	Wave form trace callback
utLoadTrace	UT load per the frame trace callback
loadTrace	Load per the frame trace callback

Implements ns3::SatSuperframeAllocator.

Definition at line 287 of file satellite-default-superframe-allocator.cc.

References m_frameAllocators, and m_rcBasedAllocationEnabled.

◆ GetTypeId()

TypeId ns3::SatDefaultSuperframeAllocator::GetTypeId ( void )

static

derived from object

Definition at line 44 of file satellite-default-superframe-allocator.cc.

References ns3::SatSuperframeAllocator::SatSuperframeAllocator(), m_fcaEnabled, m_rcBasedAllocationEnabled, and m_targetLoad.

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◆ PreAllocateSymbols()

void ns3::SatDefaultSuperframeAllocator::PreAllocateSymbols ( SatFrameAllocator::SatFrameAllocContainer_t & allocReqs )

virtual

Preallocate symbols for given to UTs in superframe.

Pre-allocation is done in fairly manner between UTs and RCs.

Implements ns3::SatSuperframeAllocator.

Definition at line 317 of file satellite-default-superframe-allocator.cc.

References AllocateToFrame(), ns3::SatSuperframeConf::CONFIG_TYPE_3, m_fcaEnabled, m_frameAllocators, ns3::SatSuperframeAllocator::m_superframeConf, m_targetLoad, RemoveAllocations(), and SelectCarriers().

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◆ ReleaseMinimumRate()

void ns3::SatDefaultSuperframeAllocator::ReleaseMinimumRate	(	uint32_t	minimumRateBytes,
		bool	controlSlotsEnabled )

virtual

Release minimum rate from the allocator.

This method is called when a UT leaves the beam using this allocator.

Parameters

minimumRateBytes	Minimum rate based bytes needed to reserve
controlSlotsEnabled	Flag indicating if control slot generation is enabled

Implements ns3::SatSuperframeAllocator.

Definition at line 376 of file satellite-default-superframe-allocator.cc.

References m_minCarrierPayloadInBytes, m_minimumRateBasedBytesLeft, and m_mostRobustSlotPayloadInBytes.

◆ RemoveAllocations()

void ns3::SatDefaultSuperframeAllocator::RemoveAllocations ( )

private

Remove allocations from all frames maintained by frame allocator.

Definition at line 274 of file satellite-default-superframe-allocator.cc.

References m_frameAllocators.

Referenced by PreAllocateSymbols().

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◆ ReserveMinimumRate()

void ns3::SatDefaultSuperframeAllocator::ReserveMinimumRate	(	uint32_t	minimumRateBytes,
		bool	controlSlotsEnabled )

virtual

Reserve minimum rate from the allocator.

This method is called to perform CAC functionality.

Parameters

minimumRateBytes	Minimum rate based bytes needed to reserve
controlSlotsEnabled	Flag indicating if control slot generation is enabled

Implements ns3::SatSuperframeAllocator.

Definition at line 345 of file satellite-default-superframe-allocator.cc.

References m_minCarrierPayloadInBytes, m_minimumRateBasedBytesLeft, and m_mostRobustSlotPayloadInBytes.

◆ SelectBestCarrier()

Ptr< SatFrameAllocator > ns3::SatDefaultSuperframeAllocator::SelectBestCarrier	(	double	cno,
		uint32_t &	bestWaveFormId )

private

Select which carrier is the best suited for handling requests of a terminal communicating at the given C/N0.

Returns: The SatFrameAllocator suitable for such carriers or nullptr if none can be found.

Definition at line 247 of file satellite-default-superframe-allocator.cc.

References m_frameAllocators.

Referenced by SelectCarriers().

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◆ SelectCarriers()

void ns3::SatDefaultSuperframeAllocator::SelectCarriers ( SatFrameAllocator::SatFrameAllocContainer_t & allocReqs )

private

Select which carriers to use from the underlying frames.

This method is called to perform dynamic frequency plan functionality. It should be called only if the superframe configuration is of the CONFIG_TYPE_3 type.

Definition at line 137 of file satellite-default-superframe-allocator.cc.

References m_frameAllocators, m_totalBandwidth, and SelectBestCarrier().

Referenced by PreAllocateSymbols().

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