STUPIDSID
1 (a)
Derive relationship between S/I (Signal to interference radio) and cluster N.
5 M
1 (b)
Explain HSCSD network.
5 M
1 (c)
Explain Cell dragging in GSM.
5 M
1 (d)
Explain hard hand-off and soft hand-off.
5 M
2 (a)
Assume a receiver is located 10 kms from a 50W transmitter. The carrier frequency is 900MHz. Free space propagation is assumed, Gt=1 and Gr=2.
Find:
i) The power at the receiver.
ii) The magnitude of the E-field at the receiver antenna.
iii) The rms voltage applied to the receiver input assuming that the receiver antenna has a purely real impedance of 50 and is matched to the receiver.
Find:
i) The power at the receiver.
ii) The magnitude of the E-field at the receiver antenna.
iii) The rms voltage applied to the receiver input assuming that the receiver antenna has a purely real impedance of 50 and is matched to the receiver.
10 M
2 (b)
Explain in detail GSM network architecture.
10 M
3 (a)
What is meaning of traffic channel, signaling channel, broadcast channels & common control channel w.r.t. GSM.
10 M
3 (b)
Compare SDMA, TDMA, FDMA, CDMA techniques.
10 M
4 (a)
Describe open loop and closed loop system of power control in CDMA system.
10 M
4 (b)
Sketch the block diagram of reverse traffic channe of IS-95. Explain function of each block.
10 M
5 (a)
How is power control applied in forward traffic channel of IS 95?
10 M
5 (b)
Draw and explain GPRS architecture.
10 M
6 (a)
Discuss in detail IMT 2000.
10 M
6 (b)
Explain forward link features of CDMA 2000 and also explain basic service provided by upper layers of CDMA 2000.
10 M
Write short notes on following:
7 (a)
Umbrella cell approach.
5 M
7 (b)
Effect of Doppler spread on fast fading and slow fading.
5 M
7 (c)
Rake receiver
5 M
7 (d)
Hand off in GSM.
5 M
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