Master of Science II (Electronics-Communication Science)
Examination: Oct Nov 2016 Semester IV New CGPA)
SLR No. Day
Date Time Subject Name Paper
No. Seat No.
SLR SJ
360
Saturday
19/11/2016
2:30 P.M
to
5:00 P.M
Mobile Communication
C
XIV
Instructions: Questions No.1 and 2 are compulsory
Attempt any 3 questions from Q.No.3 to Q. No. 7.
All questions carry equal marks.
Q.1 Choose the correct alternative given in the bracket. 06
Find odd man out from group- AMPS, UMTS, CDMA, BPRN
AMPS UMTS
CDMA BPRN
A GSM super frame consists of multiframes.
51 26
1236 2,715,648
Which of below is a standard for WPANSs?
IEEE 802.11 IEEE 802.3
IEEE 802.15 WATM
DHCP protocol is based on model.
Agent discovery Agent solicitation
Client server All of above
In a typical MAC if a station sense the carrier and start sending
immediately if the medium is idle, it follows.
p persistent CSMA 1 persistent CSMA
Non persistent CSMA CSMA/CA
Full rate channels of GSM carry data at
11.4 kbps 2.4 kbps
200 kbps None of these
State either True/ False 08
A CDMA phone is an example of adhoc device.
In a GSM system, mobile stations base station subsystems from
RSS.
Universal Frequency Reuse is property of CDMA.
In ARFCN, letter means Adaptive.
Maximum paging channels on a forward CDMA link are eight.
Infrared technology simple, cheap and no licenses are required.
A network mobility supporting ATM switch is RS.
In a mobile IP, a tunnel usually ends at FA.
Page 1 of 2
Q.2 Write a short notes on the following: 14
Compare wired and wireless networks 05
Why cells are hexagonal 04
Snooping TCP 05
Q.3 Long answer questions:
With suitable example explain frequency reuse and discuss relationship
between number of users, no of cells per cluster and number of clusters.
08
With suitable example show how user capacity increases by decreasing
cluster size. What is trade off for this?
06
Q.4 Long answer questions:
With suitable diagram explain signal processing in a GSM system. 08
What are the different features of IS 95? 06
Q.5 Long answer questions:
With suitable block diagram explain forward CDMA channels signal
processing.
08
Describe infrastructure architecture for WLAN. 06
Q.6 Long answer questions:
With suitable diagrams explain IEEE 802.11 MAC frame. 08
Explain indirect TCP. 06
Q.7 Long answer questions:
Draw explain link manager protocol in a Bluetooth. 08
Draw and explain in short-a generic WATM reference model. 06