Exam Details

Subject embedded wireless sensor networks
Paper
Exam / Course m.tech
Department
Organization Institute Of Aeronautical Engineering
Position
Exam Date July, 2017
City, State telangana, hyderabad


Question Paper

Hall Ticket No Question Paper Code: BES210
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech II Semester End Examinations (Regular) July, 2017
Regulation: IARE-R16
EMBEDDED WIRELESS SENSOR NETWORKS
(Embedded Systems)
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. List and briefly discuss the characteristics that are shared among most of the WSN applications.

Briefly discuss the energy consumption behavior of radio transceivers during transmission and
reception.
2. Briefly describe different Programming paradigms and application programming interfaces in
WSN.
Explain different hardware components in sensor node.
UNIT II
3. Illustrates the idea of aggregation by taking an example.
Explain how a wireless sensor network can be enabled to access the remote clients via the Internet.

4. Briefly discuss different options for interfacing an application to a protocol stack in WSNs.
Explain different energy efficiency parameters considered in most of the WSN applications.
UNIT III
5. What is an atomic block in NesC and write a atomic statement to illustrate multiple invocation
of the async command share the values of the variable x.
What is Beaconing in wireless sensor networks and write the pseudocode describing how beaconing
works.
6. Write a nesC program to Print MessageC illustrating how to implement send Done as a task.

Explain different layers in Sensor network stack architecture.
Page 1 of 2
UNIT IV
7. Explain different components in the architecture of TinyCubus.
Briefly the discuss core and loaded programs in Contiki architecture.
8. What is SensorWare? Explain different types of task classes in runtime environment of Sensor-
Ware.
Briefly discuss different algorithms supported in Magent OS for application component movements.

UNIT V
9. Briefly discuss pros and cons of different algorithms for navigation of autonomous robots in
WSNs.
What is localization in adhoc and wireless sensor networks and explain different types of
localization techniques?
10. What is coordinated approach during path planning in multi-robot system?
Write a brief note on different medium access protocols of wireless sensor networks.


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