Bharath University 2008 M.C.A MOBILE COMMUNICATION - Question Paper

PCA4E3/PCAE15
Bharath University,Chennai-73
MCA,IV Semister,May-June2008
PCA4E3/PCAE15-Moblie Communication
(2006 batch)
Time 3Hrs Maximum:100 Marks
[Marks10*2=20]
Part A
ans All ques.
1. describe guard space.
2.Mention any 2 advantages of cellular systems with small cells for mobile communications.
3.Define hidden terminal issue.
4.Define the term 'Roaming ' in mobile communication.
5.What is the main difference ranging from Infrared transmission and Radio transmission?
6.What are the characteristics of Adhoc Network?
7.What is handover of major importance to WATM?
8.What are the function of Mobile management function in WATM?
9.Define Tunneling.
10.Explain slow begin TCP congestion control algorithm.

Part B [Marks five X 16=60}
ans either (a) or (b) from every ques.
11. (a) explain about Antennas and signal propagation with respect to
mobile communications.

(OR)
(b). explain in detail the spread spectrum techniques.

12 (a) Draw the neat diagram of functions architecture of a GSM
system & discuss the functions of main elements of GSM.
(OR)
(b)What characteristics do the various orbits have? What are their
pros and cons?

13 (a) discuss the power saving mechanisms in IEEE 802.11 and Bluetooth.
(OR)
(b) explain in detail the protocol architecture of HIPERLAN.

14 (a) explain in detail WATM reference model.
(OR)
(b) Name the components of location management, their function and outline.
Why they are needed.
15 (a) explain in detail Mobile IP packet delivery.
(OR)
(b) Compare the functioning of Mobile TCP, Snooping TCP and Indirect TCP.

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Earning:   Approval pending.