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Max. Marks: 100

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F1151 Pages: 2

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SIXTH SEMESTER B.TECH DEGREE EXAMINATION(R&S), MAY 2019

Course Code: (5364
Course Name: MOBILE COMPUTING

PARTA
Answer all questions, each carries3 marks.
How does middleware and gateway functions in mobile computing application?

Why does the multiple access technologies are important in wireless
communication system?
What is an ISM band? Why it is called free band?

Write functional differences between 2™ and 3™ generation networks?
PART B
Answer any two full questions, each carries 9 marks.
Discuss different types of mobility in mobile computing functions?
Compare nomadic mobile computing and pervasive mobile computing.

How does spread spectrum techniques eliminates narrow band interference
during signal transmission?
Write and explain any one method to improve coverage and capacity of cellular
network?
Explain the architectural components and services of GSM technology with
suitable diagrams.

PART C

Answer all questions, each carries3 marks.

Write down the features of 802.1 1a, 802.11b, 802.11n WLAN standards
Distinguish between Adhoc network and Infrastructure network
Explain different requirements of Mobile IP.

Describe different types of handoff strategies in mobile communication
networks.
PART D
Answer any two full questions, each carries 9 marks.
Explain the architecture of IEEE 802.11 standard with suitable diagram.

Draw and explain MAC frame format of IEEE 802.11

Explain the working procedure of Dynamic Source Routing(DSR) Protocol with
suitable example.
Write down the role of DHCP in mobile network.

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Duration: 3 Hours

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