Mobile Communication : Question Paper May 2012 - Electronics Engineering (Semester 8) | Mumbai University (MU)

Mobile Communication - May 2012

Electronics Engineering (Semester 8)

(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks.
1(a) Explain security algorithm in GSM(5 marks) 1(b) Discuss about frequency reuse used in cellular system(5 marks) 1(c) What are the factors influencing in small scale fading?(5 marks) 1(d) Explain RAKE Receiver in CDMA system(5 marks) 2(a) How does sectoring improve S/I in cellular system?(10 marks) 2(b) Explain GSM Network architecture in detail(10 marks) 3(a) For the two ray ground reflection model, derive the expression for received power at a distance 'd' from the transmitter (10 marks) 3(b) With a neat block diagram, explain reverse CDMA channel(10 marks) 4(a) Discuss IMT 2000 system(10 marks) 4(b) Discuss GPRS technology(10 marks) 5(a) How is power control applied in forward CDMA channel?(10 marks) 5(b) Elaborate on forward w-CDMA channel(10 marks) 6(a) Explain the knife-edge diffraction model(10 marks) 6(b) What are the different methods to improve the capacity of cellular systems. Explain it.(10 marks)

Write short notes on :-

7(a) Multiple access technique(5 marks) 7(b) Handoff Procedure(5 marks) 7(c) SMS in GSM(5 marks) 7(d) Channel assignment strategies in cellular system.(5 marks)


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