EC2301 Digital communication May/June 2014 Question Paper

[Anandec]

[au]

Anna University Chennai

B.E/B.TECH DEGREE EXMINATION, MAY/JUNE 2014

FIFTH SEMESTER

ELECTRONICS AND COMMUNICATION ENGINEERING

EC2301-DIGITAL COMMUNICATION

Regulation 2008

PART - A (10*2=20marks)

1. Classify communication channel?

2. State the demerit of digital communication.

3. What is the need for non-uniform quantization?

4. List any four speech encoding procedure?

5. Define hamming distance and hamming weight?

6. What are the requirements of line code?

7. What is ISI?

8. What is a matched filter?

9. What are the advantages of QPSK over PSK?

10. Draw the signal space diagram for QAM signal for M=8.

PART-B
Attachment here !!

EC2301 Digital Communication-MaY-June 2014.pdf (240.36 KiB)

[Srini]

+2