Anna University, Chennai Department of Electronics and Communication Engineering Eighth Semester EC Mobile Adhoc Networks. ADHOC NETWORKS PPT – Free download as Powerpoint Presentation .ppt /. pptx), PDF File .pdf), Text File Introduction ` History ` Mobile Ad-hoc Networks ` Infrastructure based Networks and Infrastructureless Networks. . Adhoc Question Bank EC VTU 8TH SEM CSE ADHOC NETWORKS NOTES 10CS EC / EC Mobile Adhoc Networks May / June Question Paper ECE 8th Semester Regulation | BE Electronics and Communication.

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What is an ad hoc network?

The standard covers only MAC and the physical layers. Lower to upper layers: Mobile Ad Hoc Networks A “mobile ad hoc avhoc MANET is an autonomous system of mobile routers and associated hosts connected by wireless links –the union of which form an arbitrary graph. Hence in order to provide secure communication, secure routing protocols are needed.


IP switching and Multiprotocol Label Switching. What is the typical value of time out period in traditional TCP? Cross-layer feedback means interaction among the layers in the monile stack. The different types of fading are 1. What are not supported by nohes traditional TCP for handling Adhoc network?

Propagation model which is used to predict received signal strength, when the line-of-sight path is unobstructed between transmitter and receiver is called free space propagation model.

MAC protocol should maximize it. Click here to sign up. It offers point – to – multipoint communication. What are the classifications of MAC protocol? Code to rename and add workbook sheets.

Anna University ECE 8th Semester Notes – Site Title

The services provided by IEEE This interaction is done through the tuning layers. This is done by manipulating multiple queues at every node, one each for each data stream, and running the betworks algorithm independently for each queue. Comment on the use of natural language passwords directly for cryptographic algorithms. Skip to main content.

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EC Mobile Adhoc Networks April May Question Paper

The characteristics of wireless channel are 1. Why does an AP in wireless network act as a bridge? The routers are free to move randomly and organize themselves arbitrarily; thus, the network’s wireless topology may change rapidly and unpredictably. The classifications of integrated mobile IP network based on gateway discovery are Log In Sign Up. What are the two types of protocols used to handle multiple access issues? Stability against attacks The reasons that lead to the quick power drain of nodes in mobile Ad adhpc network are a Using the same route for a longer duration leads to partitioning of the network.


Nodes are mobile most of the time 3. Single ahdoc and graph Therotic. Improved channel reuse 4. This protocol attempt to evaluate continuously the routes within the network, so that when a packet needs to be forwarded, the router is already known and can be immediately used.

List the classification of routing protocols based on mobille routing information update mechanism. The classification of routing protocols based on the routing information update mechanism are 1. List the design goals of a MAC protocol for ad-hoc networks.

Anna University ECE 8th Semester Notes

Battery life — Group communications Prepared by A. List the issues of designing a MAC protocol for ad-hoc networks. It determines the highest priority of a data packet ready to be sent by competing nodes. Military applications and battlefields b. List the table driven protocols. Portability, weight, size of the hand held devices 4. Directional antenna MMAC is superior over MACAW, ntoes a node transmits packets only through directional antennas, the interference caused to nodes in its direct transmitting range is reduced considerably.


Wireless sensor and mesh networks Detection of malicious nodes 2. The contention based protocols can be classified into two groups according to the ways collisions are resolved. List sdhoc applications of ad hoc networks.

Reservation acknowledge phase 5. The difference between the effective transmitted power and the received power is called path loss. This leads to increased delay and increased probability of packet losses even when all nodes restrict their mobility to a small region.

For energy aware routing, low power consumption and remaining battery backup must also be considered for choosing path. Availability of network — Emergency 7. IPv6 – Neighbor discovery, auto-configuration, routing.

The issues in designing transport layer protocols are a Induced traffic b Induced throughput mpbile c Separation of congestion control, reliability and flow control netowrks Power and bandwidth constraints e Misinterpretation of congestion Prepared by A. Associativity-based routing ABR protocol selects route based on the stability of the wireless link. 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.