MU Computer Engineering (Semester 7)
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 packet flow in mobile IP, if two mobile modes communicating and both are in foreign networks. What additional routes do packets takes if reverse tunneling is required?
10 marks
1 (b) Explain three cell and seven cell clustering for mobile wireless network used in cellular system.
10 marks
1 (c) What are the additional functions in wireless ATM with respect to fixed ATM. Explain in brief.
10 marks
2 (a) Consider a mobile user who is migrating from a place to another place, provide him seamless service by satellite system, also sketch the architecture.
10 marks
2 (b) Name the main difference Adhoc Network and other networks what advantages do other network offers? Explain in detail with suitable example.
10 marks
3 (a) Explain handoff management techniques used in cellular system.
10 marks
3 (b) What are the major difference between WAP 2.0 and WAP 1.x? What influenced the WAP 2.0 development?
10 marks
4 (a) What limits the number of simultaneous users in a TDM/FDM system compared to a CDM system? What happens to the transimission quality of connections if the load gets higher on the cell?
10 marks
4 (b) Name basic applications of satellite communication and describe the tends.
10 marks
5 (a) Why is routing in multihop adhoc networks complicated, what are the special challenges?
10 marks
5 (b) What are mobile agents? Discuss their primary advantages over other approaches.
10 marks
6 (a) Part from dropping packets due to a handover or higher bit error rates, the occurrence of lengthy and / or frequent disconnection is also a problem in mobile network. Explain, how Mobile TCP protocol overcomes this problem. Also list main advantages and disadvantages of this solution.
10 marks
6 (b) Distinguish between HSCSD and GPRS? How is GPRS made possible over GSM? Explain?
10 marks
Write short notes on (any two):
7 (a) Wireless Telephony applications.
10 marks
7 (b) M-Commerce.
10 marks
7 (c) Wireless Broadband.
10 marks
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