Wireless Networking 2076 (new)

Section A

Long Answer questions

Attempt any two questions[2x10=20]

1. Calculate the median path loss using Okumura's model for the distance of 75km with base station height of 5m in a saburban environment. If the base station transmitter radiates an EIRP of 1KW at a carrier frequency of 900MHz, find the power at the receiver assuming unity gain for the receiving antenna.[10]

2. Differentiate between low pass, and pass, and high pass transmission. Explain SIP architecture.(4+6)

3. What is conflict free multiple access? List out the conflict free multiple access technologies used in wireless communication and explain each briefly.(2+8)

Section B

Short answer questions(8 x 5 = 40)

Attempt any eight questions(8x5=40)

4. Why wireless communication standards are required? Explain IEEE 802 15 (1+4)

5. Differentiate between time invariant and time variant system with examples.(5)

6. What is the use of power spectral density? Define OFDM.(2+3)

7. How linear equalization is carried out? Define FDMA.(2+3)

8. What is frequency reuse? How can it be achieved? Why is it  necessary?(1+2+2)

9. Why handoff is required in wireless communication? Explain its procedure.(2+3)

10. Compare and contrast on IPv4 and IPv6 packets. Which is better and why?(4+1)

11. What are the vision and main features of 5G? Explain RFID.(2+3)

12. Write short notes on(2x2.5)

a. Open BTS

b. Tunneling