MITS5003 Wireless Networks & Communication Assignment 1

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MITS5003 WIRELESS NETWORKS &
COMMUNICATION
ASSIGNMENT 1

Que. 1
Ans. 1 TCP/IP is a network model like OSI model with the four layers and these layers are
the combination of the seven layers of OSI model. The layers are application, network access,
transport and internet. The difference b/w the network and IP layer as below:
The layer of network access is the top layer of TCP model. it used to define the process to
send data over a network that include the bits operations that interface with the hardware
devices to check the working of, twisted pair, coaxial cable and the optical fibre. A layer
includes different protocols as, FDDI, Ethernet and token ring.
On the other side, layer of internet protocol found between the transport and network access
in the TCP model. IP datagrams is a data term that is the combination of different data
packets with the address of source and destination. The routing of IP datagrams manage with
the internet protocol.
Que. 2
Ans. 2 Translators are used for the conversation between both the prime ministers. Both
translators are comfortable with English so both prime ministers talk to their translators and
then translators start conversation with each other in English. Each translator receives
messages in English and represent in respective language in front of their prime ministers.

Que. 3
Ans. 3
(A)
Calculate the max. Amplitude with graph highest point at 15
At result, given wave max amplitude is 15
Use formula to check the wave frequency as
F = (1/T), here F used to represent the wave frequency & time period is T
F result is (1/3) is 0.33 Hz
Time period T is 3 Sec.
Show the formula as phase single as X(t) is A*m*Sin(θ) = 0 & the angle of phase is 0 degree
(B)
Calculate the max. Amplitude with graph highest point at 4

At result, given wave max amplitude is 4
Use formula to check the wave frequency as
F = (1/T), here F used to represent the wave frequency & time period is T
F result is (1/6.5) is 0.1538 Hz
Time period T is 6.5 Sec.
Show the formula as phase single as X(t) is A*m*Sin(θ) = 0 & the angle of phase is 0 degree
(C)
Calculate the max. Amplitude with graph highest point at 7.5
At result, given wave max amplitude is 7.5
Use formula to check the wave frequency as
F = (1/T), here F used to represent the wave frequency & time period is T
F result is (1/2.25) is 0.444 Hz
Time period T is 2.25 Sec.
Show the formula as phase single as X(t) is A*m*Sin(θ) = 0 & the angle of phase is 90
degree

Que. 4
Ans. 4
(A) & (B)

(C) & (D)

Que. 5
Ans. 5
Que. 6
Ans. 6

Que. 7
Ans. 7 A channel used to send the data with the data rate that define the speed of
transmission. The channel speed can be change with the speed of transform of data. Here are
some factors that affect bandwidth & these are, channel quality, bandwidth allocation, level
of signal, distortion of channel.
In the case, without increase bandwidth, increase the rate of data with using single technique
as, Nyquist theorem. Find the formula of the theorem that used in the calculation of bit rate
with bandwidth and single number. The theorem is, C is 2*B*log2 * M
In the list of cons, the approach is less reliable & the management of energy loss is poor
Que. 8
Ans. 8
 Packet switching: this is the switching with connectionless with use the layer of
network. It focuses on the datagram transmission packet between two or more nodes.
The transmission is flexible with the change in the message & packets
 Circuit Switching: this is the switching with connection and use layer of physical. The
transmission of this switching is less flexible & represent complete message in order.
Use the method of voice in the communication.
The pros of both switching as:
 The switching of packet is more flexible & fast over internet. The transmission
technique used in the packet transfer in a network & there is no risk of data loss.
 The switching of circuit completes the messages in order focus on physical medium
with easy process of error detection.

Que. 9
Ans. 9