STUPIDSID
1(a)
What is the role of GPRS in enhancing 2G GSM systems.
5 M
1(b)
Explain factors affecting small scale fading.
5 M
1(c)
Elaborate the concept of IMT 2000 family.
5 M
1(d)
Differentiate between WCDMA & CDMA 2000.
5 M
2(a)
Describe the difference between service data units & protocol data units. How is mapping from one to other is done.
10 M
2(b)
Explain IS-95 forward & reverse channel structure in detail.
10 M
3(a)
Explain GSM architecture & elaborate function of each block.
10 M
3(b)
Draw the block diagram of LTE transmitter & Receiver. Explain them in detail.
10 M
4(a)
Consider geographical area of a cellular system is 480sqkm. A total of 910 radio channels are available for traffic handling suppose, area of a cell is 8sq km.
(1) How many times would the cluster size of 7 have to be replicated in order to cover the entire service area? Calculate the number of channels per cell and system capacity.
(2) If the cluster size is decreased from 7 to 4 then does it result into increase in system capacity.
(1) How many times would the cluster size of 7 have to be replicated in order to cover the entire service area? Calculate the number of channels per cell and system capacity.
(2) If the cluster size is decreased from 7 to 4 then does it result into increase in system capacity.
10 M
4(b)
Explain power control mechanism in 3G.
10 M
5(a)
Compare & contrast FDMA, TDMA, SDMA, OFDM, SSMA.
10 M
5(b)
Explain concept of MIMO w.r.t. 4G technology.
10 M
Write notes on (any two)
6(a)
EDGE architecture
10 M
6(b)
Call procedures in GSM
10 M
6(c)
Software defined radio.
10 M
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