Digital Encoding, Multiplexing Techniques and Network Communication Protocols

Assignment
Name
Subject
Date of Submission

Part I
a)
Total bandwidth =sum of all frequencies
4+6+4+2=16 bits/2secs
= 8bits/s
b).
-Digital to digital encoding- is the representation of digital data using digital signals.
-Digital to analog encoding- this involve conversion of digital data into analog signals. it
involves the following amplitude shifting key and Frequency shifting key.
-Analog to analog encoding- This amplitude modulation techniques and frequency
modulation techniques are used in processing of analog data.
c).
status string = speed* battey%/(obstacle *motor functionality)
5∗75.
11∗0.48 =71.022=
71/2 = 35,r 1
35/2 = 17, r 1
17/2 = 8, r 1
8/2 = 4, r 0
4/2 = 2, r is 0
2/2 = 1, r is 0
1/2 = 0, r is 1
1000111
d)
=10001111001101
e).

-Checksum –This is a method of error detection this divides data into equal bits, which are
then combined and send to the required destination.
Redundancy- allows the user to see if the incoming packets were affected in the process of
transmission.
Parity checking-.It increases the number of bits by one to show if either the number of bits in the
previous data is even or odd this ensures surety of data transfer.
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