12-06-2013, 12:13 PM
SEMESTER EXAMINATIONS FOR ADHOC WIRELESS AND SENSOR NETWORKS
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Answer any five questions
All questions carry equal marks
1.a) Can we use CSMA/CD access mechanism in wireless local area network? If no, Why?
b) What are the various approaches to improve TCP performance in the wireless domain?
2.a) Compare and constrast cellular with adhoc wireless networks.
b) What are main issues that are to be considered to design a MAC protocol for adhoc wireless networks?
3.a) What are the advantages of MAC protocols with scheduling mechanisms? Explain.
b) Channel quality estimation can be done both at the sender and the receiver. Which is more advantageous? Why?
4.a) What are the different challenges of routing protocol designed for adhoc wireless networks.
b) What are the advantages of hierarchical topology based protocols? Explain.
5.a) Why does TCP not perform well in ad-hoc wireless networks? Explain.
b) Classify the QoS solution in ad-hoc wireless and explain.
6.a) What are the various challenges in key management in Adhoc-wireless networks.
b) Discuss the need for energy management in ad-hoc wireless networks.
7.a) What are the differences between ad-hoc wireless networks and sensor networks?
b) Discuss the MAC protocols used in sensor network.
8. Write short notes on
a) Wireless Application Protocol
b) Battery management schemes in ad-hoc wireless network
c) Mobile IP