ns3::NrCovMat Class Reference

#include "nr-mimo-matrices.h"

Inheritance diagram for ns3::NrCovMat:

Collaboration diagram for ns3::NrCovMat:

Public Member Functions
	NrCovMat (ComplexMatrixArray arr)
virtual void	AddInterferenceSignal (const ComplexMatrixArray &rhs)
virtual NrIntfNormChanMat	CalcIntfNormChannel (const ComplexMatrixArray &chanMat) const
	Calculate the interference-normalized channel matrix for SISO and MIMO. See NrIntfNormChanMat for details.
virtual void	SubtractInterferenceSignal (const ComplexMatrixArray &rhs)

Detailed Description

NrCovMat stores the interference-plus-noise covariance matrices of a MIMO signal, with one matrix page for each frequency bin. Operations for efficient computation, addition, and subtraction of covariance matrices of interfering MIMO signals are implemented.

Definition at line 21 of file nr-mimo-matrices.h.

Constructor & Destructor Documentation

NrCovMat()

ns3::NrCovMat::NrCovMat ( ComplexMatrixArray  arr )

inline

Definition at line 25 of file nr-mimo-matrices.h.

Member Function Documentation

AddInterferenceSignal()

void ns3::NrCovMat::AddInterferenceSignal ( const ComplexMatrixArray &  rhs )

virtual

Add an interference signal: this += rhs * rhs.HermitianTranspose()

Parameters

rhs	the full channel matrix (including precoding)

Definition at line 11 of file nr-mimo-matrices.cc.

CalcIntfNormChannel()

NrIntfNormChanMat ns3::NrCovMat::CalcIntfNormChannel ( const ComplexMatrixArray &  chanMat ) const

virtual

Calculate the interference-normalized channel matrix for SISO and MIMO. See NrIntfNormChanMat for details.

Parameters

chanMat

the frequency-domain channel matrix without precoding

Returns

the channel matrix after applying interference-normalization/whitening

Compute inv(L) * chanMat, where L is the Cholesky decomposition of this covariance matrix. For SISO, the computation simplifies to 1/sqrt(covMat) * chanMat This normalizes the received signal such that the interference has an identity covariance

Definition at line 23 of file nr-mimo-matrices.cc.

Referenced by ns3::NrPmSearchFast::CreateCqiFeedbackMimo(), ns3::NrPmSearchFull::CreateCqiFeedbackMimo(), ns3::NrPmSearchIdeal::CreateCqiFeedbackMimo(), ns3::NrPmSearchMaleki::CreateCqiFeedbackMimo(), ns3::NrPmSearchSasaoka::CreateCqiFeedbackMimo(), and ns3::NrUePhy::TriggerDlCqiGeneration().

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SubtractInterferenceSignal()

void ns3::NrCovMat::SubtractInterferenceSignal ( const ComplexMatrixArray &  rhs )

virtual

Subtract an interference signal: this -= rhs * rhs.HermitianTranspose()

Parameters

rhs	the full channel matrix (including precoding)

Definition at line 17 of file nr-mimo-matrices.cc.

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

• nr-mimo-matrices.h
• nr-mimo-matrices-eigen.cc
• nr-mimo-matrices-no-eigen.cc
• nr-mimo-matrices.cc