STUPIDSID
1 (a)
Consider a single high-power transmitter that can support 100 voice channels covering a given service area. Let the service area be divided into seven smaller area/cells. As shown in figure, each supported by lower power transmitters. The available spectrum of 100 voice channels is divided into 4 groups of 25 Channels each. The cells (1, 7) (2, 4) (3, 5) and 6 are assigned distinct channel groups. Show that the total number of channels that can be supported is enhanced to 175 to cover the same service area.
10 M
1 (b)
Explain in detail TDMA, CDMA and FDMA.
10 M
2 (a)
Explain in detail the CDMA architecture.
10 M
2 (b)
Explain in detail the IEEE 802-11 MAC Layer.
10 M
3 (a)
Explain in detail LRWPAN.
10 M
3 (b)
Compare CDMA 2000 & W-CDMA.
10 M
4 (a)
Explain in detail Mobile IP.
10 M
4 (b)
Explain possible attacks on wireless LAN and explain WEP in detail.
10 M
5 (a)
Explain in detail Bluetooth architecture.
10 M
5 (b)
Explain in detail GSM architecture.
10 M
Write short note on any four:
6 (a)
FHSS and DSSS
5 M
6 (b)
OFDMA
5 M
6 (c)
MMDS
5 M
6 (d)
WLAN Architecture
5 M
6 (e)
WiMAX
5 M
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