The LteAmc class implements the Adaptive Modulation And Coding Scheme as proposed in 3GPP TSG-RAN WG1 - R1-081483 http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_52b/Docs/R1-081483.zip. More...

#include <lte-amc.h>

Inheritance diagram for ns3::LteAmc:

Collaboration diagram for ns3::LteAmc:

Public Types
enum	AmcModel { PiroEW2010, MiErrorModel }

Public Member Functions
	LteAmc ()
virtual	~LteAmc ()
std::vector< int >	CreateCqiFeedbacks (const SpectrumValue &sinr, uint8_t rbgSize=0)
	Create a message with CQI feedback.
int	GetCqiFromSpectralEfficiency (double s)
	Get a proper CQI for the spectrale efficiency value. In order to assure a fewer block error rate, the AMC chooses the lower CQI value for a given spectral efficiency.
int	GetMcsFromCqi (int cqi)
	Get the Modulation anc Coding Scheme for a CQI value.
double	GetSpectralEfficiencyFromCqi (int cqi)
	Get the spectral efficiency value associated to the received CQI.
int	GetTbSizeFromMcs (int mcs, int nprb)
	Get the Transport Block Size for a selected MCS and number of PRB (table 7.1.7.2.1-1 of 36.213)
Public Member Functions inherited from ns3::Object
	Object ()
virtual	~Object ()
void	AggregateObject (Ptr< Object > other)
void	Dispose (void)
AggregateIterator	GetAggregateIterator (void) const
virtual TypeId	GetInstanceTypeId (void) const
template<typename T >
Ptr< T >	GetObject (void) const
template<typename T >
Ptr< T >	GetObject (TypeId tid) const
void	Start (void)
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	SimpleRefCount (const SimpleRefCount &o)
uint32_t	GetReferenceCount (void) const
SimpleRefCount &	operator= (const SimpleRefCount &o)
void	Ref (void) const
void	Unref (void) const
Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
void	GetAttribute (std::string name, AttributeValue &value) const
bool	GetAttributeFailSafe (std::string name, AttributeValue &attribute) const
void	SetAttribute (std::string name, const AttributeValue &value)
bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)
bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)
bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)
bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)
bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

Static Public Member Functions
static TypeId	GetTypeId (void)

Private Attributes
AmcModel	m_amcModel
double	m_ber

Additional Inherited Members
Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
virtual void	DoDispose (void)
virtual void	DoStart (void)
virtual void	NotifyNewAggregate (void)

Detailed Description

The LteAmc class implements the Adaptive Modulation And Coding Scheme as proposed in 3GPP TSG-RAN WG1 - R1-081483 http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_52b/Docs/R1-081483.zip.

Note: All the methods of this class are static, so you'll never need to create and manage instances of this class.

This type is not accessible from the Config system.

Attributes

Ber: The requested BER in assigning MCS (default is 0.00005).
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 5e-05
- Flags: construct write read
AmcModel: AMC model used to assign CQI
- Set with class: ns3::EnumValue
- Underlying type: Vienna|PiroEW2010
- Initial value: Vienna
- Flags: construct write read

No TraceSources are defined for this type.

Definition at line 43 of file lte-amc.h.

Member Enumeration Documentation

enum ns3::LteAmc::AmcModel

Enumerator:

PiroEW2010
MiErrorModel

Definition at line 52 of file lte-amc.h.

Constructor & Destructor Documentation

ns3::LteAmc::LteAmc ( )

Definition at line 207 of file lte-amc.cc.

ns3::LteAmc::~LteAmc ( )

virtual

Definition at line 212 of file lte-amc.cc.

Member Function Documentation

std::vector< int > ns3::LteAmc::CreateCqiFeedbacks	(	const SpectrumValue &	sinr,
		uint8_t	rbgSize = `0`
	)

Create a message with CQI feedback.

Parameters

sinr	the SpectrumValue vector of SINR for evaluating the CQI
rbgSize	size of RB group (in RBs) for evaluating subband/wideband CQI

Definition at line 291 of file lte-amc.cc.

References ns3::SpectrumValue::ConstValuesBegin(), ns3::SpectrumValue::ConstValuesEnd(), GetCqiFromSpectralEfficiency(), ns3::LteMiErrorModel::GetTbError(), GetTbSizeFromMcs(), m_amcModel, m_ber, MiErrorModel, NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, NS_LOG_LOGIC, PiroEW2010, ns3::SpectralEfficiencyForCqi, and ns3::SpectralEfficiencyForMcs.

Referenced by ns3::LteUePhy::CreateDlCqiFeedbackMessage().

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int ns3::LteAmc::GetCqiFromSpectralEfficiency ( double s )

Get a proper CQI for the spectrale efficiency value. In order to assure a fewer block error rate, the AMC chooses the lower CQI value for a given spectral efficiency.

Parameters