Electrical Engineering: Wireless Communication Assignment Solution

This document presents a comprehensive solution to a wireless communication assignment, covering various aspects of signal analysis and system design. The assignment addresses the ordering and delivery of a pizza using layer models, illustrating the interactions at each level. It also explores a scenario involving communication between the French and Chinese prime ministers, highlighting the role of translators. The solution includes detailed computations of amplitude, frequency, time period, and phase for given waveforms and equations, accompanied by their respective waveforms. Furthermore, the assignment delves into the calculation of source rate and channel capacity for a digitized TV picture transmission. The document also covers topics like signal analysis, Fourier transforms, bandwidth, bit rate, switching methods, and calculations related to signal propagation in wireless communication, offering a thorough understanding of the concepts involved.

Running head : WIRELESS COMMUNICATION
WIRELESS COMMUNICATION
By Name
Course
Instructor
Institution
Location
Date

WIRELESS COMMUNICATION 2
Question 1
Pizza Ordering
The below figure illustrates ordering Pizza
Ordering description of pizza
 The pizza Menu will be suggested by the guest (visitor) after that the host will bring the
menu to the visitor. He or she will select her or his pizza then he or she will put an order
straightway.
 The visitor will search for the contact number and make a call, when this is done the
telephone will connect to the line as it sends the tone to the dialed contact number.
 There will be a communication between the clerk responsible for placing an order and the
host. The clerk will then deliver the order for pizza, approves the order and the client will
wait for the delivery.
 The clerk responsible for the order will obtain the order, he will ask about the payments
like terms of payment, the information about the payment is accepted and he orders the
pizza to be cooked.

WIRELESS COMMUNICATION 3
Delivering Pizza
pizza delivery illustration
The below are the steps;
 The pizza will be then prepared in accordance with the specifications of the (guest) client
and it will be delivered to the clerk responsible for the order.
 The made pizza will be packed by this clerk, and a receipt for delivery is made, the pizza
is then put in a vehicle for distribution.
 The van will move all the pizzas ordered first to the host, communication line here is the
road which links the pizza order and the delivery.
 There will be confirmation of the payment by the host and the payment information is
taken back to the clerk approve delivery of pizza.
 Once that is done the host will take the pizza to the client.
QUESTION 2

WIRELESS COMMUNICATION 4
There must be an English translator for both the French Prime minister and the Chinese Prime
minister.
The processes can also be described as below;
QUESTION 3

WIRELESS COMMUNICATION 5
Amplitude is the maximum displacement of the wave on either positive or negative side Thus
from the diagram above the amplitude is 15
Period (T) is taken for the time it takes to make a complete wave which in the above wave = 3
seconds.
And again there is a very crucial relationship between the frequency and time. This relationship
is illustrated as below;

WIRELESS COMMUNICATION 6
Frequency = 1
T
Frequency = 1
3 = 0.3333Hz
Sine ( wt+φ ) = 0
Phase angle is 00
Thus the phase angle is 00

WIRELESS COMMUNICATION 7
Amplitude is the maximum displacement of the wave on either positive or negative side Thus
from the diagram above the amplitude is 4
Period (T) is taken for the time it takes to make a complete wave which in the above wave = 6.5
seconds.
And again there is a very crucial relationship between the frequency and time. This relationship
is illustrated as below;
Frequency = 1
T
Frequency = 1
6.5 = 0.1538 Hz
Sine ( wt+φ ) = 0
Phase angle is 00
Thus the phase angle is 00

WIRELESS COMMUNICATION 8
Amplitude is the maximum displacement of the wave on either positive or negative side Thus
from the diagram above the amplitude is 7.5
Period (T) is taken for the time it takes to make a complete wave which in the above wave =
2.25seconds.
And again there is a very crucial relationship between the frequency and time. This relationship
is illustrated as below;
Frequency = 1
T

WIRELESS COMMUNICATION 9
Frequency = 1
2.25 = 0.444 Hz
0
Sine ( wt+φ ) = 0
Sin φ=1
Sin-1= 900
Thus phase angle is 900
QUESTION FOUR
Part a
From
A sin ( 2 π ( f ) t
Where ;
A = Amplitude
f= Frequency
t = Time period = 1
f
10 sin ( 2 π (100 ) t

WIRELESS COMMUNICATION
10
Hence
A = 10
f = 100 Hz
T = 1/100 = 0.01 second
Phase = 0
And this can be drawn as below;
b.
20 sin ( 2 π ( 30 ) t
A= 20
Frequency = 30Hz
Time priod = 1/30 = 0.33 seconds

WIRELESS COMMUNICATION
11
Phase is 0
The waveform is shown in the below diagram
c.
5 sin (500 π (180 ) t
Amplitude = 5
Frequency = 500
2 = 250 Hz
Time period = 1/ 250 = 0.04 seconds
Phase angle is 1800
The waveform is shown in the below diagram

WIRELESS COMMUNICATION
12
d.
8 sin (400 π ( 270 ) t
Amplitude = 8
Frequency = 400
2 = 200 Hz
Time period =1/200 = 0.005 seconds
The phase angle is 2700
The waveform is shown in the below diagram