EC2401- WIRELESS COMMUNICATION - REJINPAUL.COM IMPORTANT QUESTIONS NOV DEC 2013

1. Explain the principles of cellular Network in detail and explain

the method of increasing the wireless capacity of cellular networks.

2. Explain constructive and destructive interference in detail.

3. Explain the effect of multipath propagation in wireless

communication.

4. Define Multiple Access and Explain Different Types of MA

techniques used in Wireless Communication.

5. With neat diagrams explain the Free Space Propagation

Model?

6. Derive the equation of the Path loss using Two-Ray Model

with neat diagrams.

8. Explain various propagation mechanism adopted in wireless

communication channels.

9. What is small scale fading? What are the factors influencing

small scale fading?

10. Explain narrow band modelling method for short scale fading

and long scale fading.

11. Explain probability of error in flat fading channels and

frequence fading channels.

12. Explain With neat diagram explain π/4-QPSK

13. With neat diagram explain MSK and derive expression for

power spectral density.

14. Explain adaptive equalization algorithm.

15. Explain all the diversity techniques and its priniciples .

16. With neat diagram explain Linear Predictive Vcoder and

explain the structure of Decision Feedback equalizer with diagram.

www.Rejinpaul.com www.Rejinpaul.com www.Rejinpaul.com

www.Rejinpaul.com www.Rejinpaul.com www.Rejinpaul.com

17. With neat diagram explain the operations of GSM Speech

Encoder/decoder.

18. Discuss the features and services of GSM and also Explain

the GSM system architecture with neat sketch.

19. Explain the forward and reverse channel parameters of IS-95

CDMA

20. Explain OFDM and implementation of transceivers in OFDM

system.

21. Breifly explain the 2G and 3G wireless networks and

standards available.

www.Rejinpaul.com www.Rejinpaul.com www.Rejinpaul.com

www.Rejinpaul.com www.Rejinpaul.com www.Rejinpaul.com