University Wireless Communication Practical Tasks - Assessment 1, 2019

This assignment solution addresses practical tasks related to wireless communication. It begins by listing and explaining the advantages and disadvantages of wireless networks compared to wired networks. The solution then presents GNU Octave code to generate and plot sine waves, demonstrating signal generation. Finally, it details the student's experience using Acrylic Wi-Fi Home to analyze Wi-Fi signal strength, including factors causing attenuation, the impact of distance and obstructions on signal quality, and channel capacity. The assignment demonstrates practical knowledge of troubleshooting WiFi signals and optimizing network performance, referencing the textbook and project exercises.

Running head: WIRELESS COMMUNICATION
WIRELESS COMMUNICATION
Name of the Student
Name of the University
Author Note

1WIRELESS COMMUNICATION
Response to question no 1:
The advantages of wireless network over wired network:
i) Files and other resources can be shared with other devices connected within a
network without using any port or cable connection.
ii) A large number of users can use single wireless network, unlike wired connection
it is not limited to specific port connection.
iii) The wireless network can easily be setup and disassembled, hence it does not
require to put them through walls and no laying of cables is required.
The disadvantages of wireless network over wired network:
i) Attenuation may be raised in the wireless network from the household items like
furniture, walls and many more.
ii) The speed of transferring file is comparatively slower than that of wired network.
However, the speed varies according to the geographical location in terms of the
network architecture.
ii) The speed of wireless network is slightly slower and less secure than that of the
wired network. However, if the network is not protected with secured password any
one can steal the bandwidth and use the network.

2WIRELESS COMMUNICATION
Response to question no 2:
GNU Octave Code:
t= 0:0.01:50;
A=1;
f1= 2;
subplot(2,1,1);
y1= A*sin(2*pi*f1*t);
plot(t,y1);
grid on;
xlabel('Time(sec)')
ylabel('Amplitude');
title('Name:Pragnesh Patel, SID:11656865')
subplot(2,1,2);
f2= 2*f1;
y2= A*sin(2*pi*f2*t);
plot(t,y2);
grid on;
xlabel('Time(sec)')
ylabel('Amplitude');
title('Name:Pragnesh Patel, SID:11656865')

3WIRELESS COMMUNICATION
Response to question no 3
From the project 3-4 and 3-5 I have learnt the detail analysis of signal strength and in
corresponding to that the factors causing attenuation to the Wi-Fi signal strength. The Acrylic
Wifi Home application has helped me to pursue the detail analysis of the signal strength
respective of the Access points.The Acrylic Wifi Home is an effective tool which is used for
locating access points and the signal strengths of those access points a
s well as determines the numbers of access points present over the channel.
Ultimately, the tool Acrylic Wifi Home is a Wifi scanner utility as whole. I have notice that
the signal strength is also depended over the channel qualities and bandwidth.
I have observed the variation in the Wifi signal when the distance between the access
point and the device is slightly increased. I observed the signal is at a stable state when my
laptop was kept at a distance of 12 feet from the access point. No observable variation was
detected when I covered the antenna with my and a paper but the signal strength slightly
boosted when I covered the same with an aluminum foil. Then I slowly increased the distance
between the laptop and the access point, I have observed slight variation in the signal
strength, when I moved to another room. In between the two rooms there are walls and doors
and the distance is about 23 feet, which have affected the download speed. However, the
signal strength diffuses when a bag with metallic objects is kept in front of the access point
and poor signal strength observed at the same distance from the source. The signal strength
almost diminished at a distance of 63 feet from the access point and the download failed.
The knowledge I have gathered from this projects are:
i) Steps by step procedure to troubleshoot and analyze the WiFi signal.
ii) Acrylic Wifi Home allowed me to analyze the signal strength and help identify
what I need to do in order to optimize the network.
iii) The channel capacity plays an important role in the WiFi signal strength.

4WIRELESS COMMUNICATION
Bibliography
Gorade, S., VattI, R., Kaurwad, V., Bhakre, S., & Kadam, R. (2018, March). Enhancement of
Signal Strength of Single Antenna Wi-Fi Routers. In 2018 International Conference
on Current Trends towards Converging Technologies (ICCTCT)(pp. 1-3). IEEE.
Lachniet, J. (2019). Introduction to GNU Octave. Lulu. com.