3.3 Pathloss Wireless Propagation Models

This video covers Pathloss Wireless Propagation Models

Free-Space Path Loss Model
Two-Ray Multipath Model
Path Loss Exponent Models
Single-Slope
Multi-Slope

To get the slides and additional resources. Please visit the course website or google

Here is the Matlab Code for the example:

% Dr. Muqaibel
clc
clear all
close all
d=[ 10 20 50 100 300];
M=[-70 -75 -90 -110 -125];
semilogx(d,M,'x')
xlabel ('distance, log scale');
ylabel ('Power Ratio in dB')
axis([1 1000 -130 -50])

d0=1;
f=9E8;
c=3E8;
lambda=c/f;
gamma=3.71;
K=20*log10(lambda/(4*pi*d0));
d2=1:1000;
M2=K-10*gamma*log10(d2);
hold on
semilogx(d2,M2)