mimo::EqualizerZF Class Reference

ZF Equalizer, i.e. Matrix inversion and multiplication block, i.e. the solution of a linear equation system. More...

#include <equalizer.h>

Inheritance diagram for mimo::EqualizerZF:

[legend]List of all members.

Public Member Functions
	EqualizerZF (int deviceID, DeviceSystemIntf *system, const simth::PropertyList &pl, size_t nr_rx, size_t nr_tx)
	EqualizerZF (int deviceID, DeviceSystemIntf *system, const simth::PropertyList &pl)
void	process ()
Static Public Member Functions
static void	calcZF (const CVectorSeq &received_signal, const MatrixFreqSignal &channelestim, CVectorSeq &equalized_signal, CVectorSeq *softout_information)
Related Functions
(Note that these are not member functions.)
	propertylist_EqualizerZF (not_a_function)

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Detailed Description

ZF Equalizer, i.e. Matrix inversion and multiplication block, i.e. the solution of a linear equation system.

FIXME: Need to check whether this is already implemented in the SpatialMuxDecoder

Only works for matrices at input_port 1 and vectors at input_port 0. The matrix A is of dimension MxN, the input vector b of dimension N, and the output vector x of dimension M. If M=N, the solution is, well, the solution of Ax=b. If M>N, the solution will be the linear least square that minimizes ||Ax-b||^2 using QR factorization.

The second output interface (# 1) calculates the necessary reliability information for soft-output demodulation.

Parameters in Micos parameter file:

eq_type: set this to "<code>zf</code>"

nr_rx: Set this to the length N of the input vector.

nr_tx: Set this to the length M of the output vector.

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Constructor & Destructor Documentation

mimo::EqualizerZF::EqualizerZF (  int  deviceID, DeviceSystemIntf *  system, const simth::PropertyList &  pl, size_t  nr_rx, size_t  nr_tx )

mimo::EqualizerZF::EqualizerZF (  int  deviceID, DeviceSystemIntf *  system, const simth::PropertyList &  pl )  [inline]

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Member Function Documentation

void mimo::EqualizerZF::process (   )  [virtual]

Implements simth::Device.

static void mimo::EqualizerZF::calcZF (  const CVectorSeq &  received_signal, const MatrixFreqSignal &  channelestim, CVectorSeq &  equalized_signal, CVectorSeq *  softout_information )  [static]

Calculate a ZF equalization on the given received_signal. The output sequence for the softout_information may be NULL.

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Friends And Related Function Documentation

propertylist_EqualizerZF (  not_a_function   )  [related]

These are the properties of class EqualizerZF . This list is auto-generated from the XML-Devicelist of this device by means of an XSLT transformation script. Description of this device in the XML file: ZF Equalizer Note that this class also has the Properties of its base classes. The direct base class is mimo::Equalizer ; direct link to its propertylist should be propertylist_Equalizer(). The list below usually includes the properties that have been inherited from the base classes; the properties which belong only to this class can be found at the end of this list.

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