NakagamiFading¶

Package: inet.physicallayer.wireless.common.pathloss

compound module NakagamiFading

Implements the Nakagami fading model for wireless signal propagation. This statistical model extends the free space path loss model by adding multipath fading effects. The shapeFactor parameter determines the severity of fading, with lower values representing more severe fading conditions. When shapeFactor equals 1, the Nakagami distribution reduces to the Rayleigh distribution, modeling severe multipath with no line-of-sight component.

See also: RayleighFading

Inheritance diagram¶

Extends¶

Name	Type	Description
FreeSpacePathLoss	compound module	Implements the free space path loss model, which models signal attenuation over distance according to the Friis transmission equation. Calculates signal power loss as a function of distance, wavelength, and configurable parameters. The alpha parameter controls the path loss exponent (default 2), while the systemLoss parameter accounts for hardware inefficiencies. Provides an ideal baseline model for wireless propagation in environments with line-of-sight and no obstacles.

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
alpha	double	2
systemLoss	double	0dB
shapeFactor	double	1

Properties¶

Name	Value	Description
class	NakagamiFading
display	i=block/control

Source code¶

//
// Implements the Nakagami fading model for wireless signal propagation. This
// statistical model extends the free space path loss model by adding multipath
// fading effects. The shapeFactor parameter determines the severity of fading,
// with lower values representing more severe fading conditions. When shapeFactor
// equals 1, the Nakagami distribution reduces to the Rayleigh distribution,
// modeling severe multipath with no line-of-sight component.
//
// @see RayleighFading
//
module NakagamiFading extends FreeSpacePathLoss
{
    parameters:
        double shapeFactor = default(1);
        @class(NakagamiFading);
}

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