GTU Mobile Communication And Wireless Communication - June 2015 Exam Question Paper

GTU Computer Engineering (Semester 7)
Mobile Communication And Wireless Communication
June 2015

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

1 (a) What are the different tiers in three-tier architecture of mobile computing? Describe the functions of these tiers.

7 M

1 (b) Briefly describe the following networks with example and application.
1. Wired network.
2. Wireless network.
3. Ad hoc network.

7 M

2 (a) What are the essential functional differences between 1^stgeneration, 2^nd generation and 3^rd generation of networks?

7 M

2 (b) Describe protocol stack of Bluetooth.

7 M

2 (c) What is Mobile IP? Explain tunnelling in the context of Mobile IP.

7 M

3 (a) Draw and explain System architecture of GSM.

7 M

3 (b) Describe different GSM addresses and identifiers.

7 M

3 (c) What is handover/handoff? How handoff is different from roaming?

7 M

3 (d) Explain and differentiate between SM MT and SM MO.

7 M

4 (a) What is the difference between GSM and GPRS? How is data routing done in GPRS?

7 M

4 (b) Explain how mobile transport layer is different from TCP/IP transport layer.

7 M

4 (c) Explain Direct sequence spread spectrum with example.

7 M

4 (d) List types of wireless LAN. Differentiate between Ad hoc verses infrastructure Mode.

7 M

5 (a) Discuss 3G versus WiFi.

7 M

5 (b) Explain Session Initiation protocol.

7 M

5 (c) What is Mobile VoIP? Explain.

7 M

5 (d) Explain security frameworks for mobile environment.

7 M

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