ns3::NakagamiPropagationLossModel Class Reference

Nakagami-m fast fading propagation loss model. More...

#include <propagation-loss-model.h>

Inheritance diagram for ns3::NakagamiPropagationLossModel:

Collaboration diagram for ns3::NakagamiPropagationLossModel:

List of all members.

Static Public Member Functions

static TypeId GetTypeId (void)

This method returns the TypeId associated to ns3::NakagamiPropagationLossModel.

Detailed Description

Nakagami-m fast fading propagation loss model.

The Nakagami-m distribution is applied to the power level. The probability density function is defined as

$p(x; m, \omega) = \frac{2 m^m}{\Gamma(m) \omega^m} x^{2m - 1} e^{-\frac{m}{\omega} x^2} = 2 x \cdot p_{\text{Gamma}}(x^2, m, \frac{m}{\omega})$

with $ m $ the fading depth parameter and $\omega$ the average received power.

It is implemented by either a ns3::GammaVariable or a ns3::ErlangVariable random variable.

Like in ns3::ThreeLogDistancePropagationLossModel, the m parameter is varied over three distance fields:

$\underbrace{0 \cdots\cdots}_{m_0} \underbrace{d_1 \cdots\cdots}_{m_1} \underbrace{d_2 \cdots\cdots}_{m_2} \infty$

For m = 1 the Nakagami-m distribution equals the Rayleigh distribution. Thus this model also implements Rayleigh distribution based fast fading.

static TypeId ns3::NakagamiPropagationLossModel::GetTypeId ( void ) [static]

This method returns the TypeId associated to ns3::NakagamiPropagationLossModel.

Attributes defined for this type:

Distance1: Beginning of the second distance field. Default is 80m.
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 80
- Flags: construct write read
Distance2: Beginning of the third distance field. Default is 200m.
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 200
- Flags: construct write read
m0: m0 for distances smaller than Distance1. Default is 1.5.
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 1.5
- Flags: construct write read
m1: m1 for distances smaller than Distance2. Default is 0.75.
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.75
- Flags: construct write read
m2: m2 for distances greater than Distance2. Default is 0.75.
- Set with class: ns3::DoubleValue
- Underlying type: double -1.79769e+308:1.79769e+308
- Initial value: 0.75
- Flags: construct write read

No TraceSources defined for this type.

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


Static Public Member Functions
static TypeId	GetTypeId (void)
	This method returns the TypeId associated to ns3::NakagamiPropagationLossModel.