Pathloss Simulation

Pathloss

Instructions

To understand the effect of various parameters on pathloss, please follow the following steps:

/li> Enter the Antenna gain G, Carrier frequency f_c, Height of the transmitter H_t, Height of the receiver H_r.

Start adjusting the position of the receiver by moving the slider.

Click on register to plot the pathloss at the given distance.

You can register pathloss for different distances and heights of antenna and observe the graph to understand the pathloss trends.

G (dB)

f_c (150-1500 MHz)

H_t (30-1000 meters)

H_r (1-10 meters)

Adjust Receiver Position (1-100 km)

Observations

0 m

Distance

0 dB

Path Loss

shadowing

Instructions

To understand the effect of obstacles on the signal power, follow the following steps:

Assume that the transmitter is located in the centre.

Click on any location in the simulation area to generate an obstacle.

Observe that the area behind the obstacle becomes reddish. This is due to the fact that the signal strength decreases.

Note that blue areas indicate good signal and red once indicate bad signal.As you start placing more obstacles, it starts to become darker.

G (dB)

f_c (in MHz)

H_t (meters)

H_r (meters)

Adjust Receiver Position

Observations

Registered Values

Distance (m)	Path Loss (dB)

Pathloss and Shadowing

Instructions

To understand the effect of obstacles on the signal power, follow the following steps:

Assume that the transmitter is located in the centre.

Click on any location in the simulation area to generate an obstacle.

Observe that the area behind the obstacle becomes reddish. This is due to the fact that the signal strength decreases.

Note that blue areas indicate good signal and red once indicate bad signal.As you start placing more obstacles, it starts to become darker.

Control Panel

System Parameters

Pathloss at Reference Distance (K, dB)

Pathloss Exponent (γ)

Reference Distance (d₀, km)

Obstacle Density (per km²)

Receiver Position

Distance from Transmitter (km) 2.50

Receiver Angle (degrees) 0

Data Recording

Recorded Points: 0 / 50

Simulation

Transmitter

Receiver

Obstacle

LoS Signal

Occluded

Signal Status: Line of Sight

Total Pathloss: 0 dB

Pr/Pt at Receiver: 0 dB

Results

Record at least one data point to generate the analysis graph