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Author: jagrut solanki
Publisher: Anchor Academic Publishing
ISBN: 3954899442
Category : Computers
Languages : en
Pages : 14
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Book Description
Ad hoc network is a collection of mobile nodes which dynamically form a temporary network without any infrastructure or centralize entity. There are number of routing protocol exists in ad hoc network and this protocols have been compared. These protocols are like DSR (Dynamic Source Routing), AODV (Ad-hoc On Demand Distance Vector Routing Algorithm), and TORA (Temporally Ordered Routing Algorithm) like more. AODV is Reactive routing protocol. We modify the existing AODV protocol. All Routing Protocol have different Strategies of routing like End to End delay, Packet delivery ratio, Traffic overhead and Power Consumptions. Routing Deals with route discovery between source and destination. Aim of Dissertation is to improve route error tolerance mechanism of AODV. In our propose scheme the transmission starts from closest neighbor node if the link fail in middle of the transmission. That shows very important reductions in delay and it improves the packet delivery ratio. It also reduces the routing overhead by reducing frequency of route discovery process.
Author: jagrut solanki
Publisher: Anchor Academic Publishing
ISBN: 3954899442
Category : Computers
Languages : en
Pages : 14
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Book Description
Ad hoc network is a collection of mobile nodes which dynamically form a temporary network without any infrastructure or centralize entity. There are number of routing protocol exists in ad hoc network and this protocols have been compared. These protocols are like DSR (Dynamic Source Routing), AODV (Ad-hoc On Demand Distance Vector Routing Algorithm), and TORA (Temporally Ordered Routing Algorithm) like more. AODV is Reactive routing protocol. We modify the existing AODV protocol. All Routing Protocol have different Strategies of routing like End to End delay, Packet delivery ratio, Traffic overhead and Power Consumptions. Routing Deals with route discovery between source and destination. Aim of Dissertation is to improve route error tolerance mechanism of AODV. In our propose scheme the transmission starts from closest neighbor node if the link fail in middle of the transmission. That shows very important reductions in delay and it improves the packet delivery ratio. It also reduces the routing overhead by reducing frequency of route discovery process.
Author: Jagrut Solanki
Publisher: GRIN Verlag
ISBN: 3656904944
Category : Technology & Engineering
Languages : en
Pages : 11
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Book Description
Scientific Essay from the year 2015 in the subject Engineering - Communication Technology, , language: English, abstract: Mobile communication has enjoyed an incredible rise in quality throughout the last decade. Network dependability is most important concern in wireless Ad-hoc network. a serious challenge that lies in MANET (Mobile Ad-hoc network) is that the unlimited mobility and lots of frequent failure because of link breakage. Standard routing algorithms are insufficient for Ad-hoc networks. as a results of major drawback in MANET is limited power provide, dynamic networking. In MANET each node works as a router and autonomously performs mobile practicality. The link connectivity changes ceaselessly because of mobility to reflect this routing information additionally needs to get changed ceaselessly. AODV protocol is projected for this extraordinarily mobile network. In ancient AODV if any node fails in middle of transmission the method starts from the source node but in our propose scheme the transmission starts from the closest neighbor node therefore shows very important reduction in delay and improvement in packet delivery ratio are achieved. It also reduces the routing overhead by reducing the frequency of route discovery process.
Author: G Ram Mohana Reddy
Publisher: CRC Press
ISBN: 1315351633
Category : Computers
Languages : en
Pages : 139
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Book Description
In recent years, a lot of work has been done in an effort to incorporate Swarm Intelligence (SI) techniques in building an adaptive routing protocol for Mobile Ad Hoc Networks (MANETs). Since centralized approach for routing in MANETs generally lacks in scalability and fault-tolerance, SI techniques provide a natural solution through a distributed approach for the adaptive routing for MANETs. In SI techniques, the captivating features of insects or mammals are correlated with the real world problems to find solutions. Recently, several applications of bio-inspired and nature-inspired algorithms in telecommunications and computer networks have achieved remarkable success. The main aims/objectives of this book, "Mobile Ad Hoc Networks: Bio-Inspired Quality of Service Aware Routing Protocols", are twofold; firstly it clearly distinguishes between principles of traditional routing protocols and SI based routing protocols, while explaining in detail the analogy between MANETs and SI principles. Secondly, it presents the readers with important Quality of Service (QoS) parameters and explains how SI based routing protocols achieves QoS demands of the applications. This book also gives quantitative and qualitative analysis of some of the SI based routing protocols for MANETs.
Author: Rahul Gupta
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
An ad hoc network is a collection of wireless hosts that spontaneously forms a network without the use of any existing network infrastructure or centralized administration. Due to the limited transmission range of wireless network interfaces, multiple network "hops" may be needed for one node to exchange data with another node across the network. Thus, individual nodes must also act as routers. The routing problem gets complex if the nodes are mobile. Dynamic routing in the face of topological changes is an important problem in such mobile ad hoc networks. Such networks find tremendous applications in any type of mobile collaborative applications, where the network must be set up on the fly. Examples include emergency response, law enforcement, explorations, conferencing and military. Not all ad hoc networks are mobile. A network of embedded sensors collaborating to perform a high level sensing task is one such example. Since sensor nodes are powered by battery and sensor networks must be operational in an unattended fashion for a long time, solving problems with low communication overhead is critical. This means communication must be primarily local. The overall goal of this thesis is to perform experimental study on real ad hoc network testbeds. Two types of network testbeds have been used -- (i) a mobile ad hoc network using NovaRoam wireless IP routers, and (ii) a sensor network using the Berkeley MICA mote platform. Our focus is experimental protocol design and evaluation on these testbeds. In the NovaRoam-based mobile ad hoc network testbed, we have implemented a version of the well-known AODV (Ad hoc On Demand Distance Vector) routing protocol. It has been implemented as a part of the usual TCP/IP protocol stack. This thesis presents the design decisions for this implementation, as well as performance evaluation of dynamic multihop routing using UDP and TCP on this testbed. As demonstrated in current literature, the performance degrades with larger number of hops in the network and with high offered load. To exercise the sensor network testbed, we have focused on a collaborative monitoring problem. We have developed a simple algorithm that detects and tracks a moving target, and alerts sensor nodes along the projected path of the target.
Author: Sudip Misra
Publisher: John Wiley & Sons
ISBN: 0470750065
Category : Technology & Engineering
Languages : en
Pages : 448
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Book Description
Network Routing: Fundamentals, Applications and Emerging Technologies serves as single point of reference for both advanced undergraduate and graduate students studying network routing, covering both the fundamental and more moderately advanced concepts of routing in traditional data networks such as the Internet, and emerging routing concepts currently being researched and developed, such as cellular networks, wireless ad hoc networks, sensor networks, and low power networks.
Author: Dhirendra Kumar Sharma
Publisher: Sankalp Publication
ISBN: 9391190731
Category : Education
Languages : en
Pages : 106
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Book Description
In this book, the focus is on the analysis and design of efficient, adaptive, and scalable routing protocols for Mobile Ad Hoc Networks. Next section presents the objective of the work performed in the context of this book. The main objective of this book is to develop routing protocols, which are appropriate for challenging environment of mobile ad-hoc networks. Given the inherent characteristics of these networks, the solutions must be adaptable to dynamic topologies, efficient with the bandwidth usage, scalable and energy efficient when various network parameters are concerned. Moreover, the focus is also on realistic approaches having relevance in real-life deployments. This means that the protocols should not be designed merely based on generic assumptions, which could lead to incorrect conclusions. Network Simulator (ns2.34) is the tools, which are used to determine that the developed algorithms are implementable in real networks. For validation in ad hoc networks, a specific scenario should also be mentioned for which the routing protocol has been designed. Meeting of these objectives includes providing the perception of the realities of ad-hoc networking. In addition, the proposed solutions should be compared against corresponding solutions found in the literature. New solutions must offer better performance with respect to others, to be able to contribute something to the research community. To summarize, the main goal of this book is to improve the knowledge in ad-hoc networking by providing solutions, which can help in developing new features for MANETs. This book will give the details of the methodology employed to achieve the goals.
Author: Rebecca Nyasuguta Arika
Publisher: Grin Publishing
ISBN: 9783668556355
Category :
Languages : en
Pages : 28
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Research Paper (postgraduate) from the year 2017 in the subject Instructor Plans: Computing / Data Processing / IT / Telecommunication, language: English, abstract: Mobile ad-hoc networks are valuable in situations where communication support is required but there are no fixed infrastructures that are in existence and movement of communicating parties is permitted. This is a typical case in the military where the personnel move randomly in the battle field but need to maintain constant communication to the commanding stations. Unfortunately, mobile ad-hoc networks exhibit unexpected behavior when transmitting multiple data streams under heavy traffic load, more so when these data streams are destined to common terminal. Therefore, congestion is one of the most limiting factors for efficient packet transmissions over wireless ad-hoc networks. This is because it introduces problems such as long delay, high overhead and low throughput over the communication channels. To surmount these issues, researchers have proposed many congestion aware and congestion adaptive routing protocols. One of such a congestion control algorithm is the one based on node weight for the computation of usable network routes. To achieve this objective, number of dead links, um of energy for packet transmission over a mobile ad hoc network, and the number of packets delivered over the network were used as performance metrics. The results obtained indicated that the node weight-based path calculation approach yields better performance compared to the existing congestion control algorithms.
Author: Ting-Chung Tien
Publisher:
ISBN:
Category :
Languages : en
Pages : 292
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 54
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Author: Ralf Hülsermann
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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