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College : Vardhaman College Of Engineering
Degree : M.Tech
Semester : II
Subject : Adhoc Wireless & Sensor Networks
Document type : Question Paper
Website : vardhaman.org

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Vardhaman Adhoc Wireless Question Paper

M. Tech II Semester Supplementary Examinations, February – 2014
Date : 08 February, 2014
Time : 3 Hours
Max. Marks : 60

Related / Similar Question Paper :
Vardhaman College M.Tech Wireless Communications Question Paper

Answer any FIVE Questions. All Questions carry equal marks

1. a) Write a note on applications of mobile adhoc networks. 6M
b) Briefly explain the issues related to adhoc wireless internet. 6M
2. a) What are the main issues that need to be addressed while designing a MAC protocol for adhoc wireless networks? 8M
b) Give the classification of random access protocols. 4M
3. a) Give a detailed classification of routing protocols for adhoc wireless networks. 6M
b) Explain wireless routing protocol and how it avoids count to infinity problems. 6M
4. a) Give reasons why conventional multicast routing protocols cannot be used in adhoc networks. 6M
b) Explain bandwidth efficient multicast routing protocol. 6M

5. a) Explain why traditional TCP cannot be used in wireless adhoc networks. 6M
b) Assume that when current size of the congestion window is 48KB, the TCP sender experiences a timeout. What will be the congestion window size if the next three transmission bursts are successful? Assume that MSS is 1KB. Consider
i. TCP Tahoe
ii. TCP Reno 6M

6. a) Write a note on QOS frameworks for adhoc wireless networks. 6M
b) Discuss enhanced DCF and hybrid co-ordination function (HCF) to support QOS in both infrastructure based and infrastructure less network configurations.6M

7. a) Briefly discuss why there is need for energy management schemes in adhoc wireless networks. 6M
b) Classify energy management schemes in adhoc wireless networks. 6M

8. a) Write a note on data dissemination in Wireless Sensor Networks. 6M
b) Discuss briefly research issues in WSN. 6M

July – 2014

M. Tech II Semester Regular Examinations
(Regulations: VCE-R11)
ADHOC WIRELESS AND SENSOR NETWORKS
(Wireless and Mobile Communications)
Date: 11 July, 2014
Time: 3 hours
Max Marks: 60
Answer any Five Questions.
All Questions carries equal marks.

All parts of the question must be answered in one place only.
1. a) Briefly discuss the major security threats that exist in adhoc wireless networks. 4M
b) Discuss the major issues to be considered for a successful adhoc wireless Internet and draw the diagram of adhoc wireless Internet. 8M

2. a) Briefly discuss the design goals of a MAC protocol for ADHOC wireless networks. 6M
b) List the disadvantages of receiver-initiated BTMA and explain how it is overcome in DBTMA. 6M

3. a) Illustrate the process of route establishment and route maintenance in Destination Sequenced Distance-Vector Routing Protocol (DSDV) by taking an example. 8M
b) Explain different power-aware routing metrics considered in power-aware routing protocol. 4M

4. a) Briefly discuss the advantages and disadvantages of different approaches for maintenance of the multicast tree in bandwidth efficient multicast protocol (BEMRP). 6M
b) Illustrate the tree initialization phase in Multicast Routing Protocol Based on Zone Routing (MZRP). 6M

5. a) Discuss the major reasons behind the degradation that TCP faces when used in adhoc wireless networks. 4M
b) What is Blackhole problem and discuss the solution for blackhole problem by taking an example. 8M

6. a) Enumerate how a node estimates its expected location and under what circumstances the node generates a TYPE2 update message in PLBQR protocol.6M
b) Explain Flexible QoS model for Mobile adhoc Networks (FQMM). 6M

7. a) Discuss the advantages of distributed power control algorithms in adhoc wireless networks over centralized control algorithms. 4M
b) Explain Power-Saving Localized Routing (SP-Power) algorithm and Cost-Saving Localized Routing (CP-Power) algorithm. 8M

8. a) Briefly discuss the Sybil attack and sinkhole attack on sensor networks. 6M
b) Explain the working of Rumor routing and Sequential Assignment Routing in data dissemination of wireless sensor networks. 6M