STUPIDSID
1(a)
Explain RAKE receiver inCDMA.
5 M
1(b)
Explain various states in bluetooth.
5 M
1(c)
What is the 'hidden' and 'exposed' node in WLAN?
5 M
1(d)
What are wireless is sensor networks?
5 M
2(a)
Explain the forward features in CDMA 2000.
10 M
2(b)
Give technical difference between CDMA 2000 and WCDMA with respect to the core network,channel bandwidth,chip rate,modulation,mode of operation,source identification codes for sector and moblic,channel coding and overhead.
10 M
3(a)
Explain link budget analysis and requirement of wireless networks.
10 M
3(b)
Explain back-off algorithm why is CSMA-CD not used in WLAN?
10 M
4(a)
Explain the following
Bluetooth protocol stack
Bluetooth security aspects.
Bluetooth protocol stack
Bluetooth security aspects.
10 M
4(b)
The IEE 802.11 WLAN uses a 64bit sub channel implementation of multicarrier modulation (OFDM).48 subcarrier are used for information transmission.4 subcarrier for pilot tones are used for synchronization and 12 are reserved.Each sub channel has a symbol rate of 250 kilo symbol per second.the occupied bandwidth is 20 MHz.Find the bandwidth of a subchannel.what is modulation efficiency?What is a user symbol rate?If 16-QAM modulation is used,what is the user data rate if the information bits are encoded with a rate of 3/4?If the guard of time between two transmitted symbols is 800ms,what is the time utilization efficiency of the system?
10 M
5(a)
Explain WAP architecture in detail.
10 M
5(b)
Draw a neat block diagram For UMTS architecture.Explain all the interfaces.
10 M
6(a)
Explain HSDPA,emphasizing its primary objective and how it achieves performance improvements.
10 M
6(b)
Describe the model of wireless sensor network.What are the factor influencing design of a wireless sensor network?
10 M
Any two
7(a)
Write short notes on any two:
Zigbee Technology
5 M
7(b)
UWB Technology
5 M
7(c)
IEEE 802.16 standard
5 M
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