Mobile Computing - Dec 2012

Computer Engineering (Semester 7)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1(a) What are the benefits of spread spectrum techniques?(5 marks) 1(b) What do you mean by hidden terminal and exposed terminal problem? (5 marks) 1(c ) What is SDMA? How does it suit mobile cellular systems?(5 marks) 1(d) List and explain GSM services.(5 marks) 2(a) Draw and explain Bluetooth protocol stack in detail.(10 marks) 2(b) Compare between 802.11 and HIPERLAN2.(10 marks) 3(a) What is Mobile IP? Describe it in detail.(10 marks) 3(b) Discuss Mobile Transport Layer.(10 marks) 4(a) Draw a neat diagram of GSM system architecture and explain with different types of interfaces.(10 marks) 4(b) Describe the Mobile satellite system (LEO & MEO)(10 marks) 5(a) List the MANET routing protocol. List any two protocols in detail.(10 marks) 5(b) What is IMT-2000?(10 marks) 6(a) Draw a neat diagram of WAP architecture and explain in detail.(10 marks) 6(b) What is WATM? Describe WATM reference model and services.(10 marks) 7 (c) WiMax(5 marks)

Write short notes on any four of the following :-

7(a) WCDMA vs CDMA 2000(5 marks) 7(b) Mobile OS(5 marks) 7(d) GPRS(5 marks) 7(e) WML(5 marks)