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ns3::LteAmc Class Reference

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:

Public Types

enum  AmcModel { PiroEW2010, MiErrorModel }
 

Public Member Functions

std::vector< int > CreateCqiFeedbacks (const SpectrumValue &sinr, uint8_t rbgSize=0)
 Create a message with CQI feedback. More...
 
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. More...
 
int GetMcsFromCqi (int cqi)
 Get the Modulation anc Coding Scheme for a CQI value. More...
 
double GetSpectralEfficiencyFromCqi (int cqi)
 Get the spectral efficiency value associated to the received CQI. More...
 
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) More...
 
- Public Member Functions inherited from ns3::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 Initialize (void)
 
- Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
 SimpleRefCount (const SimpleRefCount &o)
 
uint32_t GetReferenceCount (void) const
 
SimpleRefCountoperator= (const SimpleRefCount &o)
 
void Ref (void) const
 
void Unref (void) const
 
- Public Member Functions inherited from ns3::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)
 
- Static Public Member Functions inherited from ns3::Object
static TypeId GetTypeId (void)
 
- Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void Cleanup (void)
 
- Static Public Member Functions inherited from ns3::ObjectBase
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 DoInitialize (void)
 
virtual void NotifyNewAggregate (void)
 
- Protected Member Functions inherited from ns3::ObjectBase
void ConstructSelf (const AttributeConstructionList &attributes)
 
virtual void NotifyConstructionCompleted (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.

Doxygen introspection did not find any typical Config paths.

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 Function Documentation

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

Create a message with CQI feedback.

Parameters
sinrthe SpectrumValue vector of SINR for evaluating the CQI
rbgSizesize 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::GetTbDecodificationStats(), GetTbSizeFromMcs(), NS_ASSERT_MSG, NS_LOG_DEBUG, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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
sthe spectral efficiency
Returns
the CQI value

Definition at line 238 of file lte-amc.cc.

References NS_ASSERT_MSG, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

Referenced by CreateCqiFeedbacks().

int ns3::LteAmc::GetMcsFromCqi ( int  cqi)

Get the Modulation anc Coding Scheme for a CQI value.

Parameters
cqithe cqi value
Returns
the MCS value

Definition at line 253 of file lte-amc.cc.

References NS_ASSERT_MSG, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

double ns3::LteAmc::GetSpectralEfficiencyFromCqi ( int  cqi)

Get the spectral efficiency value associated to the received CQI.

Parameters
cqithe cqi value
Returns
the spectral efficiency in (bit/s)/Hz

Definition at line 281 of file lte-amc.cc.

References NS_ASSERT_MSG, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

int ns3::LteAmc::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)

Parameters
mcsthe mcs index
nprbthe no. of PRB
Returns
the Transport Block Size in bits

Definition at line 268 of file lte-amc.cc.

References NS_ASSERT_MSG, and NS_LOG_FUNCTION.

Referenced by CreateCqiFeedbacks().


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