MITS5003 Wireless Networks & Communication 2022

MITS5003 Wireless Networks & Communication - 2019SS
Assignment No 1
Process of communication
In this situation we have two hosts namely X and Y. Host X want to communicate with Host Y
and to do so it establishes as virtual circuit. When the virtual circuit has been fully developed the
both the ATM layer and the Transportation should be in agreement with the type of service being
used. The Asynchronous Transfer Mode (ATM) is a switched need network that is different from
the switch Ethernet in the following ways; ATM uses fixed-length packets of 53 bytes, it
prioritizes transmissions based on Quality of Service (QoS), it provides no error correction on
the user data and it uses a very different type of addressing from traditional data link layer
protocols such as Ethernet or token ring. The contact between two hosts is comprised of three
parts which Traffic to be offered, the service agreed upon by the two host and the compliance
requirements. (University, 2019)
The virtual circuit won’t work when both sides of the hosts does not agree on the contact point.
The process of communication;

 The host computer X establishes the quality of service (QOS) parameters first using the
network parameters that are located within the node of computer X and then it set ups a
route of communication for instance. X → M →Y
 Switch connection denoted by X 1 is reserved by node X
 X then sends X1 to M requesting for a reserve connection X2.
 The X2 then send to Y by M to requesting for reserve connection X3.
 Host computer Y finds Host computer X signals and it then send X3 as an
acknowledgement and in turn computer X will receive A1back again.
A summary of the Communication process from host computer X to Y and vice versa with the
reserved connection along the way allowing Qos. When the communication is completed the
communication is broken down and the virtual circuits are the resets ready for the next usage.
X → X 1(X )→ X 2 ( M ) → X 3 (Y ) →Y
Y → X 3 (Y ) → X 2 ( M ) → X 1( X ) → X
The ATM- A dressing
Permanent virtual circuit ( PVC )Y → M →Y
Switched virtual circuit (SVC ) X → M → Y ∨X → N → M → Y .
Routes and switches on the actual path.

solution
a) 8 sin ( 2 π ( 500 ) t )
Thisis a modulation signal of the form y= A sin ( w (t )+C ) + D (Alencar, 2018)
Where Amplitude= A ,
Period= 2 π
w ,
Frequency= 1
Period
Phase=C
Solution
Amplitude=8 ,
Period= 2 π
w = 2 π
(2 π∗500)=2∗10−3 seconds
Frequency= 1
Period = 1
2∗10−3 =500 Hz
Phase=0o
b) 3 sin ( 600 t+ 45 )
Amplitude=3 ,
Period= 2 π
w = 2 π
(600)=0.01047 seconds
Frequency= 1
Period = 1
0.01047 =95.493 Hz

Phase=45o
c) 6 sin ( 400 t +135 )
Amplitude=6 ,
Period= 2 π
w = 2 π
(400) =0.0157 seconds
Frequency= 1
Period = 1
0.0157 =63.662 Hz
Phase=135o
d) 2 sin ( 1000t +180 )
Amplitude=2 ,
Period= 2 π
w = 2 π
(1000)=6.2832∗10−3 seconds
Fr equency= 1
Period = 1
6.2832∗10−3 =159.155 Hz
Phase=180o
a) Maximum Amplitude=15
b) Time period=3 s