C2401 Wireless Communication Important Questions Nov Dec 2013

C2401 Wireless Communication 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. 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