MU Electronics and Telecom Engineering (Semester 7)
Mobile Communication
December 2014
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) Explain HSCSD network.
5 M
1 (b) Explain what Doppler shift is.
5 M
1 (c) Explain authentication in GSM.
5 M
1 (d) Explain path loss model.
5 M

2 (a) Discuss in detail GSM logical channels.
10 M
2 (b) How system coverage and capacity can be improved in GSM?
10 M

3 (a) Discuss IMT 2000 system.
10 M
3 (b) Explain IS-95 reverse traffic channel.
10 M

4 (a) Explain GSM services and features.
10 M
4 (b) Elaborate on forward W-CDMA channel.
10 M

5 (a) Explain signal processing in GSM.
10 M
5 (b) What are the technical differences in W-CDMA and CDMA 2000.
10 M

6 (a) Explain GSM system architecture.
10 M
6 (b) Explain in detail working of RAKE receiver.
10 M

Write short notes (any two):
7 (a) Small scale fading.
10 M
7 (b) Frequency reuse.
10 M
7 (c) GPRS technology.
10 M



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