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Mobile Communication Question Paper - May 18 - Electronics Engineering (Semester 8) - Mumbai University (MU)
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Mobile Communication - May 18

Electronics Engineering (Semester 8)

Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.

1.a. What is meant by frequency reuse? What is its effect on the co-channel interference?
(5 marks) 11752

1.b State the radio specifications of GSM.
(5 marks) 10149

1.c Compare GSM and CDMA technologies.
(5 marks) 10150

1.d Explain the terms of soft, softer and soft-softer handoffs.
(5 marks) 10130

2.a Draw a well labelled diagram and explain in detail the architecture of GSM.
(10 marks) 10151

2.b Explain GSM frame and time slot structure with the required figures.
(10 marks) 10146

3.a Explain CDMA reverse channel processing.
(10 marks) 10159

3.b Discuss mobility and resource management in CDMA.
(10 marks) 10160

4.a Explain 4G-LTE architecture with a neat block diagram in detail.
(10 marks) 10175

4.b Explain cell splitting. If the radius of each new microcell is half that of the original cell, show that i) Traffic load increase four times ii) Transmit power must be reduced by 12dB to maintain the S/N requirement with a path loss exponent of 4.
(10 marks) 10131

5.a Describe UMTS architecture with a neat diagram and interfaces.
(10 marks) 10168

5.b Compare 3G and 4G technologies.
(5 marks) 10176

5.c Write a detailed note on mobile IP.
(5 marks) 10180

6 Write short notes on:

6.a WiMax
(5 marks) 10177

6.b GPRS
(5 marks) 11758

6.c RFID
(5 marks) 10282

6.d MANET
(5 marks) 10181

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