Wireless Networking 2076

Attempt all questions.

1. What are the challenges to implement Wireless Communications over the diverse geographic distribution at rural Nepal? Suggest best wireless communication standards to avoid the challenges identified.(6)

2. What is the difference Wireless LAN and Wireless PAN? Describe the basics of wireless MAN.(6)

3. Briefly explain the pass loss model and the 4-PSK Modulation technique.(6)

4. What are the techniques to mitigate fading effects in wireless communications? Briefly discuss different types or diversity.(3+3)

5. Discuss benefits and drawbacks of Mobile Ad-Hoc networks.(6)

6. Explain the causes of channel interference. Determine Frequency reuse distance for cell radius 5KM and cluster sire of 7.(2+4)

7. What are different multiple access technololgies available for wireless communication? Explain the different types of soft and hard handoffs supported by CDMA systems.(2+4)

8. What are the differences between cell splitting and cell sectoring? Explain the concept of mobility management with the basic functions performed by the location management.(2+4) 

9. Define the following terms properly:(3x2)

a) Large scale path loss

b) Frequency re-uae

c) Frequency re-farming

10. Write short notes on(any two):(3x2)

a) Channel Assignment Strategies

b) Error probability in the transmission

c) CAC