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# CS601 Data Communication Assignment No 02 Fall 2019 Solution & Discussion Due Date: 28-11-2019

CS601 Data Communication Assignment No 02 Fall 2019 Solution & Discussion Due Date: 28-11-2019

CS601 Data Communication Assignment 2 Solution & Discussion Fall 2019

 Assignment No. 02  Semester: Fall 2019 CS601: Data Communication Total Marks: 20 Due Date: 28 Nov 2019 Instructions: Please read the following instructions carefully before submitting assignment: You need to use MS word document to prepare and submit the assignment on VU-LMS. It should be clear that your assignment will not get any credit if: §  The assignment is submitted after due date. §  The assignment is not in the required format (doc or docx). §  The submitted assignment does not open or file is corrupt. §  Assignment is copied (partial or full) from any source (websites, forums, students, etc).   Objectives: To enhance the learning about: 1.     Encoding Scheme 2.     Single Characteristics 3.     Transmission Impairments Assignment

Question No. 1

A below given diagram is representing the Differential Manchester encoding scheme. You are required to carefully analyze the diagram and then write the binary pattern represented by the diagram:

Hint: First bit is 0 and its voltage level is negative to positive.

Give your answer in the following table:

 0

Question No.2

Determine the following from the diagram given below:

• Period in Milliseconds
• Frequency
• Phase Shift

Give your answer in the following table:

 Frequency Period Phase

Question No. 3

Suppose power P of a signal is increased 30 times after passing through an amplifier. By writing all necessary formulas and calculation steps, you are required to calculate amplification (power gain) in proper unit.

Best of Luck!

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### Replies to This Discussion

For Phase Shift in Question 2, see this screenshot from Book:

Another way to look at the phase is in terms of shift or offset. We can say that
1. A sine wave with a phase of 0° is not shifted.
2. A sine wave with a phase of 90° is shifted to the left by ! cycle. However, note
that the signal does not really exist before time O.
3. A sine wave with a phase of 180° is shifted to the left by ~ cycle. However, note
that the signal does not really exist before time O.

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