Jan 27, 2013

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Anna University Chennai
B.E/B.Tech DEGREE EXAMINATION, NOVEMBER/ Dec 2012,
B.Tech Information Technology
IT2402 / IT - 72 Mobile Communication
REGULATION 2008

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PART A

1.Prove that Barker code has good auto correlation.
2.Calculate the channel capacity C, given a bandwidth B as 3100 Hz and number of discrete signals M as 8.
3.What are the three low power states of a bluetooth state?
4.What is Wireless Local Loop?
5.What are the advantages of GPRS?
6.What are the types of handover in GSM?
7.Differentiate types of Care of Address.
8.What is selective retransmission?
9.what is SyncML?
10.List features of WML.

PART B

11.a.Explain clearly the various schemes for Medium Access Control with Time Division Multiple Access.
or
b.i.Compare and contrast SDMA,FDMA, TDMA, CDMA.
ii.Briefly discuss about cellular systems.

12.a.Briefly explain about the system and protocol architecture of 802.11 standard with MAC layer and its management.
or
b.Briefly discuss about system and protocol architecture of 802.11 standard.

13.a.Explain the mobile services, system architecture, localization and calling of GSM in detail.
or
b.i.Discuss in detail about GPRS architecture and data services.
ii.Explain security services of GSM system.

14.a.i.What is mopile IP? Explain agent discovery, registration and encapsulation.
ii.Write brief notes on fast retransmit/fast recovery.
or
b.Discuss in detail Indirect and Snooping TCP and differentiate them.

15.a.Discuss in detail the WAP architecture and Protocol.
or
b.Write short notes on the following:
i."i-mode"
ii.Wireless markup language.

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