TwoRay Class Reference

This computes the received signal strength using the TwoRay Ground Refelection model at longer distances and FreeSpace for shorter distances. More...

#include <path_loss.hpp>

Inheritance diagram for TwoRay:

List of all members.


Public Types
typedef boost::shared_ptr< TwoRay >	TwoRayPtr
	Smart pointer that clients should use.
Public Member Functions
virtual double	getRecvdStrength (const WirelessCommSignal &signal, const PhysicalLayer &receiver) const
	Compute the signal strength for the signal at the receiver.
Static Public Member Functions
static TwoRayPtr	create ()
	A factory method to ensure that all objects are created via `new` since we are using smart pointers.
static TwoRayPtr	create (double lossFactor)
	A factory method to ensure that all objects are created via `new` since we are using smart pointers.
Protected Member Functions
	TwoRay ()
	A constructor.
	TwoRay (double lossFactor)
	A constructor.

Detailed Description

This computes the received signal strength using the TwoRay Ground Refelection model at longer distances and FreeSpace for shorter distances.

The equation for the Two-Ray model is given by:

$P_r = \frac{P_t G_t G_r H_t H_r}{d^4 L}$

where $P_r$ is the receiver power, $P_t$ is the transmitted power, $G_t$ and $G_r$ are the gains of the transmitter and receiver antennas, respectively, $H_t$ and $H_r$ is the transmitter and receiver antenna heights, $d$ is the distance between the transmitter and receiver, and $L$ is the loss factor. By default, $H_t = H_r = 0.0$ .