Thursday, February 10, 2022

Anna University EC1315A Digital Communication Techniques Nov Dec 2021 Question Paper

Anna University Previous Years Question Paper

Question Paper Code : 86578

B.E./B.Tech. DEGREE EXAMINATIONS, NOVEMBER/DECEMBER 2021.

Sixth Semester

Electronics and Communication Engineering

EC 1351 A – DIGITAL COMMUNICATION TECHNIQUES

(Regulations 2008)

Time : Three hours Maximum : 100 marks

Answer ALL questions.

PART A — (10 x 2 = 20 marks)

1. Define sampling theorem.

2. State the advantages of adaptive delta modulation.

3. State Nyquist pulse shape criterion.

4. What is meant by correlative coding?

5. State the different types of pass band modulation.

6. Draw the signal space representation of MSK signal

7. Define discrete memoryless channel.

8. What is linear block code? -

9. What are the advantages of spread spectrum communication?

10. Define the term ‘processing gain’ of a direct sequence spread spectrum system.

PART B — (5 x 16 = 80 marks)

11. (a) With the help of neat block diagram, explain the transmitter and receiver of pulse code modulation. (16)

(b) Describe the operation of delta modulation in detail. Also state the advantages of disadvantages of DM. (16)

Attachments:

PDF Link : Click here to download Anna University EC1315A Digital Communication Techniques Nov Dec 2021 Question Paper

Scanned Copies:

Duraimani

B.E Civil Engineer Graduated from Government College of Engineering Tirunelveli in the year 2016. She has developed this website for the welfare of students community not only for students under Anna University Chennai, but for all universities located in India. That's why her website is named as www.IndianUniversityQuestionPapers.com . If you don't find any study materials that you are looking for, you may intimate her through contact page of this website to know her so that it will be useful for providing them as early as possible. You can also share your own study materials and it can be published in this website after verification and reviewing. Thank you!