This is a statistical path-loss model for UWB propagation in residential environments, for both line-of-sight (LOS) and non-line-ofsight (NLOS) cases. It implements the Ghassmezadeh stochastic UWB channel path loss model.

Path loss in dB at a distance d is modeled as follows:

PL(d) = [PL0 + 10 * sigma *log10(d/d0)] + S(d), where d >= 0

where the reference distance d0 is equal to 1 m, PL0 is the path loss at the reference distance, sigma is the path-loss exponent and S is the shadow fading. The path-loss exponent follows a normal distribution N[muSigma, sigmaSigma] and the shadow fading is shown to be log-normal (with a standard deviation).

The parameter values of the Ghassemzadeh channel model for LOS and NLOS environments are the following:

LOS:

*.radioMedium.pathLoss.PL0 = 47dB *.radioMedium.pathLoss.muGamma = 1.7 *.radioMedium.pathLoss.muSigma = 1.6 *.radioMedium.pathLoss.sigmaGamma = 0.3 *.radioMedium.pathLoss.sigmaSigma = 0.5

NLOS:

*.radioMedium.pathLoss.PL0 = 51dB *.radioMedium.pathLoss.muGamma = 3.5 *.radioMedium.pathLoss.muSigma = 2.7 *.radioMedium.pathLoss.sigmaGamma = 0.97 *.radioMedium.pathLoss.sigmaSigma = 0.98

These configuration values are based on Table 1. of [1].

Citation of the following publication is requested by the authors if you use this model in a publication of your own:

J. Rousselot, J.-D. Decotignie, An ultra-wideband impulse radio PHY layer model for network simulation. SIMULATION January 2011 vol. 87 no. 1-2 82-112.

For more information, see also:

[1] J. Rousselot, J.-D. Decotignie, An ultra-wideband impulse radio PHY layer model for network simulation. SIMULATION January 2011 vol. 87 no. 1-2 82-112. http://dx.doi.org/10.1177/0037549710377767

[2] J. Rousselot, Ultra Low Power Communication Protocols for UWB Impulse Radio Wireless Sensor Networks. EPFL Thesis 4720, 2010. http://infoscience.epfl.ch/record/147987

[3] A High-Precision Ultra Wideband Impulse Radio Physical Layer Model for Network(1,2,3,4) Simulation, Jérôme Rousselot, Jean-Dominique Decotignie, Second International Omnet++ Workshop,Simu'TOOLS, Rome, 6 Mar 09. http://portal.acm.org/citation.cfm?id=1537714

Inheritance diagram

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram.

Extends

Name	Type	Description
Module	compound module	Base module for all INET compound modules.

Parameters

Name	Type	Default value	Description
displayStringTextFormat	string	""	Determines the text that is written on top of the submodule, supports displaying pars, watches, and module-specific information
PL0	double		Path loss at reference distance of 1m [dB]
muGamma	double		Mean path loss exponent
muSigma	double		Mean standard deviation of shadowing [dB]
sigmaGamma	double		Standard deviation of path loss exponent
sigmaSigma	double		Standard deviation of the standard deviation of shadowing
shadowing	bool		Enable/disable shadowing

Properties

Name	Value	Description
class	UwbIrStochasticPathLoss
display	i=block/control

Source code

//
// This is a statistical path-loss model for UWB propagation in residential
// environments, for both line-of-sight (LOS) and non-line-ofsight (NLOS) cases.
// It implements the Ghassmezadeh stochastic UWB channel path loss model.
//
// Path loss in dB at a distance d is modeled as
// follows:
//
// PL(d) = [PL0 + 10 * sigma *log10(d/d0)] + S(d), where d >= 0
//
// where the reference distance d0 is equal to 1 m, PL0 is the path loss at the
// reference distance, sigma is the path-loss exponent and S is the shadow fading.
// The path-loss exponent follows a normal distribution N[muSigma, sigmaSigma] and
// the shadow fading is shown to be log-normal (with a standard deviation).
//
// The parameter values of the Ghassemzadeh channel model for LOS and NLOS
// environments are the following:
//
// LOS:
//
// *.radioMedium.pathLoss.PL0 = 47dB
// *.radioMedium.pathLoss.muGamma = 1.7
// *.radioMedium.pathLoss.muSigma = 1.6
// *.radioMedium.pathLoss.sigmaGamma = 0.3
// *.radioMedium.pathLoss.sigmaSigma = 0.5
//
// NLOS:
//
// *.radioMedium.pathLoss.PL0 = 51dB
// *.radioMedium.pathLoss.muGamma = 3.5
// *.radioMedium.pathLoss.muSigma = 2.7
// *.radioMedium.pathLoss.sigmaGamma = 0.97
// *.radioMedium.pathLoss.sigmaSigma = 0.98
//
// These configuration values are based on Table 1. of [1].
//
// Citation of the following publication is requested by the authors if you use
// this model in a publication of your own:
//
// J. Rousselot, J.-D. Decotignie, An ultra-wideband impulse radio PHY
// layer model for network simulation. SIMULATION January 2011 vol. 87 no. 1-2 82-112.
//
// For more information, see also:
//
// [1] J. Rousselot, J.-D. Decotignie, An ultra-wideband impulse radio PHY
// layer model for network simulation. SIMULATION January 2011 vol. 87 no.
// 1-2 82-112. http://dx.doi.org/10.1177/0037549710377767
//
// [2] J. Rousselot, Ultra Low Power Communication Protocols for UWB
// Impulse Radio Wireless Sensor Networks. EPFL Thesis 4720, 2010.
// http://infoscience.epfl.ch/record/147987
//
// [3]  A High-Precision Ultra Wideband Impulse Radio Physical Layer Model
// for Network Simulation, Jérôme Rousselot, Jean-Dominique Decotignie,
// Second International Omnet++ Workshop,Simu'TOOLS, Rome, 6 Mar 09.
// http://portal.acm.org/citation.cfm?id=1537714
//
module UwbIrStochasticPathLoss extends Module like IPathLoss
{
    parameters:
        double PL0 @unit(dB); // Path loss at reference distance of 1m [dB]
        double muGamma; // Mean path loss exponent
        double muSigma; // Mean standard deviation of shadowing [dB]
        double sigmaGamma; // Standard deviation of path loss exponent
        double sigmaSigma; // Standard deviation of the standard deviation of shadowing
        bool shadowing; // Enable/disable shadowing
        @class(UwbIrStochasticPathLoss);
        @display("i=block/control");
}

File: src/inet/physicallayer/wireless/common/pathloss/UwbIrStochasticPathLoss.ned

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