Manet
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This document provides an overview of mobile ad hoc networks (MANETs). It defines MANETs as infrastructureless, self-configuring networks of mobile devices connected via wireless links. The document outlines the history and working of MANETs, describes types like VANETs, and discusses challenges, applications, advantages, and disadvantages of MANETs. It concludes that MANETs allow flexible communication between mobile nodes in a dynamically changing network topology.
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This document presents a new routing protocol for mobile ad hoc networks that uses a hybrid of ant colony optimization and particle swarm optimization algorithms. It aims to improve quality of service for routing by using a clustering technique to eliminate multicast trees and assign cluster heads to be responsible for multicasting. The path selection is evaluated based on ant colony optimization to produce better results than other techniques. It is proposed that this approach will diminish overall energy consumption and complexity compared to previous algorithms. The document provides background on mobile ad hoc networks, routing protocols, and related work applying swarm intelligence and other approaches to improve QoS routing.
Mobile ad-hoc network [autosaved]
This document discusses mobile ad-hoc networks (MANETs). It defines MANETs as wireless infrastructureless networks where each node is willing to forward data for other nodes. The document outlines the history of MANETs including early packet radio networks. It describes key features like multi-hop routing and the ability for nodes to join or leave the network dynamically. Examples applications discussed include military, disaster recovery, and sensor networks. Finally, the document notes limitations of MANETs such as bandwidth constraints, energy limitations, and security issues.
Centralized System in MANET with GRP Protocol
This document summarizes a research paper on implementing a centralized system in a mobile ad hoc network (MANET) using the Gathering based Routing Protocol (GRP). It begins by introducing MANETs and their characteristics like dynamic topology. It then describes centralized systems and how they differ from decentralized networks like MANETs. Next, it discusses vulnerabilities of MANETs and challenges in routing. The GRP protocol is explained along with its advantages and disadvantages. The document outlines a simulation setup comparing network performance between a MANET and one with a centralized system using GRP with hello packet exchanges. Results showed the centralized system had better performance. The conclusion is that GRP protocol performs better in MANETs with a centralized system.
Wireless technologies
This document provides an overview of wireless network technologies and their evolution over time. It discusses early networks like Ethernet and token ring networks. It then covers the development of wireless technologies like Bluetooth, home RF, wireless LANs, and mobile ad hoc networks. Specific types of mobile ad hoc networks are explained in more detail, including vehicular ad hoc networks (VANETs) and intelligent VANETs that use technologies like IEEE 802.11p and WiMAX for vehicle communication. Finally, it discusses wireless sensor networks and how they differ from other ad hoc networks in aspects like dense deployment, frequent topology changes, limited resources, and shared purpose of sensor nodes.
Mobile ad hoc network
A mobile ad hoc network (MANET) consists of devices connected wirelessly without infrastructure. Each device is free to move and change connections, making the network topology highly dynamic. Devices must forward unrelated traffic, acting as routers. The primary challenge is maintaining routing information as the topology changes frequently. MANETs can connect to the internet or operate independently, using radio frequencies for short-range communication between peers. Examples include networks between vehicles or smartphones without cellular access.
Introduction of Manet
Mobile ad-hoc networks (MANETs) are self-configuring networks composed of mobile routers connected wirelessly. Nodes in a MANET can move freely and change connections frequently, making the network topology unpredictable. MANETs operate in a standalone fashion or connect to the larger Internet. They are suitable for situations where infrastructure is absent, such as emergency response. Data must be routed through intermediate nodes in the multi-hop wireless network.
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Manet
- 1. MANET (Mobile Ad Hoc Network) Prepared By: Nikunj Chaklasiya MA004
- 2. AGENDA • Introduction • What is MANET • History • Working of MANET • Types of MANET • Challenges in Securing MANETs • MANET Application • Future Scope • Advantages • Disadvantages • Conclusion • References
- 3. Information • Mobile ad hoc networks are infrastructure less networks where node can move freely. • One node direct communicate with another if they are within radio communicate range. • A node can simultaneously serve both as source to destination of a message and as a relay for Other message. • A massage traverses the network by being relayed from one node to another until it reaches its destination.
- 4. What is MANETs • It is an infrastructure less IP based network of mobile and wireless machine nodes connected with radio. In operation, the nodes of a MANET do not have a centralized administration mechanism. • It is known for its routable network properties where each node act as a “router” to forward the traffic to other specified node in the network.
- 5. History • ‘Ad-hoc’ Latin word means ‘for this’ or for this only. • Mobile ad-hoc networks could be categorized into the first, second, and the third generation. First Generation (PRNET) (1972-1980): • Packet radio networks was the first ad-hoc network system. • Use radio frequency technology to transmit and receive data. • Ad hoc networks were the PRNET sponsored by DARPA(Defense Advanced Research Projects Agency).
- 6. History Second Generation (SURAN) (1980-1990): • Known as Survival Adoptive Radio Network (SURAN). • Developed : Global mobile information Systems & Near term Digital Radio (NTDR) Third Generation (1990-onwards): • Known as commercial ad-hoc network systems. • Bluetooth was first introduced in 1998. • Eight devices can communicate with each other in a small network.
- 7. A B C D E F Internet E Gateway Stand-alone MANET After one of the nodes is configured as a gateway, the entire network is connected to an external network like Internet Working of MANETs
- 8. Mobile Ad Network – HOME A B C Working of MANETs
- 9. 1. Vehicular Ad Hoc Networks (VANETs) 2. Intelligent vehicular ad hoc networks (InVANETs) 3. Internet Based Mobile Ad-hoc Networks (iMANET) Types of MANETs
- 10. Challenges in Securing MANETs Initial Routing before attack
- 11. Challenges in Securing MANETs Initial Routing before attack Data Packets
- 12. • Data packets received in one place of the network and replay them in another place • Attacker can attack the Routing Algorithm Challenges in Securing MANETs
- 13. Most packets will be routed to the Attacker The Attacker can drop packets or forward packets to avoid detection Challenges in Securing MANETs
- 14. MANET Application • Military services • Emergency services • Commercial environment • Home and enterprise networking • Education • Entertainment • Sensor network
- 15. Future scope • Future application of it would be implementing it in the farmers field effectively. So that the farmers could examine the different climatic conditions from their respective places.
- 16. Advantages • Provide access to information and services regardless of geographic area • Network can be setup any place and at any time • Works without any infrastructure • Wireless communication • Highly mobility • Small and light equipment
- 17. Disadvantages • Limited resources • Limited physical security • Lack of authorization facilities • Security protocols for wired networks can not works ad-hoc network
- 18. Conclusion • In this presentation, we discuss MANET and its advantages, application, challenges, security and various types of Mobile ad hoc network for efficient and effective communication between the mobile nodes participating in a dynamically established network of nodes.
- 19. References • www.howstuffwork.com https://pdfs.semanticscholar.org • https://datatracker.ietf.org/wg/manet/ • https://www.ijarcsse.com • http://techterms.com/definition/manet • http://www.eexploria.com/