STUPIDSID
SPPU Computer Engineering (Semester 5)
Data Communication and Wireless Sensor Networks
December 2014
Data Communication and Wireless Sensor Networks
December 2014
Answer any one question from Q1 and Q2
1 (a)
Encode the following binary data stream into unipolar, polar (RZ, NRZ), Bipolar NRZ and Manchester codes for given Data stream : 11100101.
5 M
1 (b)
A network of CSMA/CD has a bandwidth of 10 Mbps. If the maximum propagation time (including the delays in the devices and ignoring the time needed to send a jamming signal) is 25.6 μs, what is the minimum size of the frame ?
5 M
2 (a)
What are different application of WSN ?
7 M
2 (b)
Give definitions. 1) Baud rate 2) Bit rate 3) SNR.
3 M
Answer any one question from Q3 and Q4
3 (a)
Explain what is meant by slope overload and granular noise distortion. Also explain how adaptive delta modulation improves system tolerance to slope overload.
7 M
3 (b)
Write short note on Virtual LAN.
3 M
4 (a)
Explain stop and wait ARQ, GO back-n ARQ and selective repeat ARQ. Comment on the performance of each.
6 M
4 (b)
Explain WSN architecture in details.
4 M
Answer any one question from Q5 and Q6
5 (a)
Write short notes on:
1) S-MAC
2) Sparse Topology and Energy Management (STEM)
1) S-MAC
2) Sparse Topology and Energy Management (STEM)
10 M
5 (b)
Explain in detail contention based protocols.
6 M
6 (a)
With the help of detail flow schematic diagram explain slotted CSMA-CA protocol.
8 M
6 (b)
What do you mean by LEACH protocol ? Explain organization of LEACH protocol
8 M
Answer any one question from Q7 and Q8
7 (a)
What are different routing challenges and design issues in WSN?
8 M
7 (b)
Explain in detail data dissemination and gathering.
8 M
7 (c)
What is piconet ?
2 M
8 (a)
Write short notes on:
1) Sensor Protocol for Information via Negotiations (SPIN).
2) Geographic and energy aware routing
1) Sensor Protocol for Information via Negotiations (SPIN).
2) Geographic and energy aware routing
10 M
8 (b)
What are different types of routing strategies in WSN?
8 M
Answer any one question from Q9 and Q10
9 (a)
Explain various parameters needed for determining distances to anchor nodes.
8 M
9 (b)
Explain the impact of anchor placement.
8 M
10 (a)
Write short note on:
1) Tiny OS
2) Magnet OS.
1) Tiny OS
2) Magnet OS.
8 M
10 (b)
Explain information based sensor tracking.
8 M
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