EC Mobile Ad hoc Networks. Subject Code / Name: DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING QUESTION BANK. B.E./ DEGREE EXAMINATION, NOVEMBER/DECEMBER Eighth Semester Electronics and Communication Engineering EC /. EC MOBILE ADHOC NETWORKS. L T P C. 3 0 0 3. UNIT I. INTRODUCTION. 9. Introduction to adhoc networks – definition, characteristics features.

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Differentiate proactive and reactive protocol. The needs for cross layer design are a To enhance the performance of the layered protocol stacks. Explain the types of ad nerworks network routing protocols based on routing information update mechanism.


Reservation acknowledge phase 5. List the major goals when selecting a routing protocol. Table driven nftworks protocols – Periodic exchange of routing information. In BSS the client stations cannot communicate directly with one another.

Reservation confirm phase 4. List the major types of resource consumption attacks. What do you mean by contention based protocols?

List the network security requirements. What are the advantages? Why ad hoc networks are needed? List the advantages and disadvantages of DSDV routing protocols. List the approaches for power aware routing protocol. List the main issues in designing a MAC protocol for ad hoc wireless networks. Write the frame format of List the issues mobiel utmost importance in mobile IP. What are the mechanisms used in the MAC layer?


What are the disadvantages of the binary exponential back off mechanism used in MACA? Why secure routing protocols are needed? How on-demand routing protocols differ from on-demand routing protocols? Explain multicast routing algorithms in detail. Protocol boosters can perform adaptation procedures towards upper layers and lower layers, assisting the process of information exchanges between various layers without a need for actual protocol format changes, leading to improved system performances.


List the design goals of a MAC protocol for ad-hoc networks. Considering the MSS of 1KB, calculate the size of the congestion window for which the next three transmissions will be successful. What are the issues in designing adgoc layer protocol?

Explain the significant challenges of generic cross layer design. What are hybrid protocols? List any two needs of real- time MAC protocol. What is replay attack? What are the pros and cons of tree based and mesh based routing? Comment on the use of natural language passwords directly for cryptographic algorithms.

List the issues of designing a MAC protocol for ad hoc networks. How scalability improved in ad hoc wireless network. In what ways these become a problem in mobile ad hoc networks?

What are the challenging issues in ad hoc network maintenance?

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List some of the network layer attacks. Hence the cost staffing, etc. Explain ad hoc TCP states and event action mapping in detail. The features that are not supported by the traditional TCP for mobilee adhoc network are 1. The issues in designing transport layer protocols are a Induced traffic b Induced throughput unfairness c Separation of congestion control, reliability and flow control d Power and bandwidth constraints e Misinterpretation of congestion Prepared by A.


How is secure routing done on wireless channels?

MAC protocol should consider the constraint of ad hoc networks for time critical applications c Hidden and exposed terminal problem d Synchronization: Explain the contention based protocols with scheduling and reservation in detail. How are information symmetry and perceived collisions handled? How is routing table constructed in fisheye state routing protocol?

Explain integration of adhoc with mobile IP networks in detail. Also kobile its impact on bit rate ce2050 power control. Some of the commonly used outdoor propagation models are: What are the major challenges in designing routing protocols? Difficulties in replacing batteries 5.

List the issues that affect the design deployment and performance of ad hoc wireless system. Reduced signal interference 2.

Adgoc influencing small scale fading are a Speed of surrounding objects b Multipath propagation c Speed of the mobile d Transmission bandwidth of the signal. With any five major reasons, analyze why TCP is exposed to significant throughput degradation in ad hoc networks.