Download or read book Design and Implementation of the Extended Routing Information Protocol for Mobile Ad Hoc Networks in Linux written by Ravikumar Putta and published by GRIN Verlag. This book was released on 2012-11-28 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2012 in the subject Computer Science - Software, Coventry University (MSRSAS - computer science and networking), course: Design and Implementation of the Extended Routing Information Protocol[ERIP] for Mobile Ad-hoc Networks in Linux, language: English, abstract: A Mobile Ad-hoc Network (MANET) is a network that can be established with no fixed infrastructure. This means that all its nodes behave as routers and take part in its discovery and maintenance of routes to other nodes in the network. Its routing protocol has to be able to cope with the new challenges that a MANET creates such as node mobility, security maintenance, quality of service, limited bandwidth and limited power supply. These challenges set new demands on MANET routing protocols, like low overhead operation, routing security and best path selection. This Thesis deals with the design and implementation of the Extended Routing Information Protocol (ERIP) for mobile ad-hoc networks in Linux. ERIP is a proactive protocol, characterized by low overhead operation, best path selection based on hop count, loop free working and routing security. Raw sockets are used for exchange of routing information, whereas data exchange happens via TCP or UDP sockets as required by the application. Low overhead operation of ERIP is guaranteed by using the incremental dump strategy. Incremental dumping of the routing table is realized by scheduling only partial updates, instead of full. The routing table is encrypted before broadcast using a simple shared key algorithm to provide routing security. The routing functionality of the implemented protocol is tested by first running ERIP on two laptops and using VLC media player to stream multimedia data between the laptops. The two laptops were then moved out of range of each other and intermediate nodes (laptops) were brought in that were running the same routing protocol. The data was communicated over multiple hops in near real time. The best path selection property was proved by setting up a network of ERIP nodes that had multiple paths between source and destination with different hop counts. The implemented protocol consistently routed data through the path that had the least hop count. Porting the developed protocol to the Linux kernel would allow it be part of the standard Linux distribution. Also, more complex cryptography algorithms can be implemented to provide data and routing security.

Download or read book Computing and Network Sustainability written by H.R . Vishwakarma and published by Springer. This book was released on 2017-07-05 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is compilation of technical papers presented at International Research Symposium on Computing and Network Sustainability (IRSCNS 2016) held in Goa, India on 1st and 2nd July 2016. The areas covered in the book are sustainable computing and security, sustainable systems and technologies, sustainable methodologies and applications, sustainable networks applications and solutions, user-centered services and systems and mobile data management. The novel and recent technologies presented in the book are going to be helpful for researchers and industries in their advanced works.

Download or read book Enhanced Ad Hoc On demand Distance Vector Routing Protocol for Mobile Ad Hoc Network Internet Connectivitiy written by Gobi Gurusamy and published by . This book was released on 2006 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing netwrok infrastructure of centralized administration and consists of mobile nodes that use a wireless interface to communicate with each other. These mobile nodes serve as both and routers so they can forward packets on behalf of each other. Hence, the mobile nodes are able to communicate beyond their transmission range by supporting multi hop communication. However, the fact that there is no central infrastructure and that the devices can move randomly gives rise to various kinds of problem, such as routing and security and qualtiy of service (QoS). In this thesis the problem of routing is considered. An Ad-Hoc network has certain characteristics, which impose new demand on the routing protocol the most important characteristic is the dynamic topology, which is a consequence of node mobility. Nodes can change position quite frequently, which means that we need a routing protocol that quickly adapts to topology changes. The nodes in ad hoc network can consist of laptops and PDA (Personal Digital Assistants) and are often very limited in resources such as CPU capacity, storage capacity, battery power and bandwidth. This means that routing protocol should try to minimize control traffic, such as period update message. Instead the routing protocol should be reactive, thus only only calculate routes upon receiving a specific request. The Internet Engineering Task Force (IEFT) currently has a working group called mobile Ad hoc network (MANET) that is working on routing specification for Ad hoc networks. This thesis evaluates some of the routing protocols such as AODV (Ad hoc on demand Distance vector) and DSR (Dynamic Sources Routing) and DSDV (Destination Sequence Distance Vector) for performance testing and an enhanced implementation of AODV, which is able to detect Internet gateway in the proactive, reactive, and hybrid situation. This evaluation is done by by means of simulation using NS-2 developed by University California Berkeley. There are several ad hor routing protocols, such as AODV, DSR, and DSDV that propose solutions for routing within a mobile ad hoc network. However, since there is an interest in communication between not only mobile devices in an ad hoc network, but also between a mobile device in an ad hoc network and a fixed device in a field network (e.g. the Internet), the ad hoc routing protocols need to be modified. In this thesis the ad hoc routing protocol AODV is used to examine the interconnection between mobile ad hoc network and the Internet. For this purpose Network Simulator 2, NS 2, has been used. Moreover, three proposed approaches for gateway discovery are implemented; propose a forwarding algorithm, and route determination algorithm for default route and host route in MANET are investigated.

Download or read book Applications of Evolutionary Computing written by Mario Giacobini and published by Springer Science & Business Media. This book was released on 2007-04-02 with total page 775 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed joint proceedings of seven workshops on evolutionary computing, EvoWorkshops 2007, held in Valencia, Spain in April 2007. It examines evolutionary computation in communications, networks, and connected systems; finance and economics; image analysis and signal processing; and transportation and logistics. Coverage also details evolutionary algorithms in stochastic and dynamic environments.

Download or read book The IEEE International Symposium on Personal Indoor and Mobile Radio Communications written by IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications and published by . This book was released on 1995 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design Implementation and Testing of Routing Protocols for Mobile Ad Hoc Networks written by Binita Gupta and published by . This book was released on 2002 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mobility based routing overhead management in reconfigurable wireless ad hoc networks written by Wilfred Githuka Gikaru and published by Cuvillier Verlag. This book was released on 2004 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intermittently Connected Mobile Ad Hoc Networks written by Abbas Jamalipour and published by Springer Science & Business Media. This book was released on 2011-10-29 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few years, there has been extensive research activity in the emerging area of Intermittently Connected Mobile Ad Hoc Networks (ICMANs). By considering the nature of intermittent connectivity in most real word mobile environments without any restrictions placed on users’ behavior, ICMANs are eventually formed without any assumption with regard to the existence of a end-to-end path between two nodes wishing to communicate. It is different from the conventional Mobile Ad Hoc Networks (MANETs), which have been implicitly viewed as a connected graph with established complete paths between every pair of nodes. For the conventional MANETs, mobility of nodes is considered as a challenge and needs to be handled properly to enable seamless communication between nodes. However, to overcome intermittent connectivity in the ICMANs context, mobility is recognized as a critical component for data communications between the nodes that may never be part of the same connected portion of the network. This comes at the cost of addition considerable delay in data forwarding, since data are often stored and carried by the intermediate nodes waiting for the mobility to generate the next forwarding opportunity that can probably bring it close to the destination. Such incurred large delays primarily limit ICMANs to the applications, which must tolerate delays beyond traditional forwarding delays. ICMANs belong to the family of delay tolerant networks (DTNs). However, the unique characteristics (e.g., self-organizing, random mobility and ad hoc based connection) derived from MANETs distinguish ICMANs from other typical DTNs such as interplanetary network (IPN) with infrastructure-based architecture. By allowing mobile nodes to connect and disconnect based on their behaviors and wills, ICMANs enable a number of novel applications to become possible in the field of MANETs. For example, there is a growing demand for efficient architectures for deploying opportunistic content distribution systems over ICMANs. This is because a large number of smart handheld devices with powerful functions enable mobile users to utilize low cost wireless connectivities such as Bluetooth and IEEE 802.11 for sharing and exchanging the multimedia contents anytime anywhere. Note that such phenomenal growth of content-rich services has promoted a new kind of networking where the content is delivered from its source (referred to as publisher) towards interested users (referred to as subscribers) rather than towards the pre-specified destinations. Compared to the extensive research activities relating to the routing and forwarding issues in ICMANs and even DTNs, opportunistic content distribution is just in its early stage and has not been widely addressed. With all these in mind, this book provides an in-depth discussion on the latest research efforts for opportunistic content distribution over ICMANs.

Download or read book Cross Layer Optimization for Protocols in Mobile Adhoc Networks written by Anita Yadav and published by GRIN Verlag. This book was released on 2020-03-17 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2016 in the subject Computer Science - Miscellaneous, grade: 16, , language: English, abstract: In this thesis, we have modified AODV routing protocol by incorporating link prediction algorithm using a proposed link prediction model. This algorithm predicts the link availability time and even before the link breaks; either it repairs the route locally or sends information to the source nodes to enable them to initiate a new route search well in time. This algorithm improves the quality of service of the network. Simulation results show that AODV routing algorithm with link availability model performs better than the existing AODV. Advances in wireless technology and hand-held computing devices have brought revolution in the area of mobile communication. The increasing mobility of humans across the globe generated demand for infrastructure-less and quickly deployable mobile networks. Such networks are referred to as Mobile Adhoc Networks (MANET). Usually, nodes in a MANET also act as a router while being is free to roam while communicating each others. Adhoc networks are suited for use in situations where infrastructure is unavailable or to deploy one is not cost-effective. Frequent changes in network topology due to mobility and limited battery power of the mobile devices are the key challenges in the adhoc networks. The depletion of power source may cause early unavailability of nodes and thus links in the network. The mobility of nodes will also causes frequent routes breaks and adversely affects the required performance for the applications. Availability of a route in future mainly depends on the availability of links between the nodes forming the route. Therefore, it is important to predict the future availability of a link that is currently available. We have proposed an analytical model for link prediction using Newton divided difference method. This link availability algorithm is incorporated in AODV routing algorithm (AODVLP) to evaluate the performance of AODV routing protocol using the metrics viz. delivery rate, average end-to-end delay, average RTS collisions per node and route failure. In the existing AODV protocol, packets are routed until a link in the existing path fails. This results in degradation of quality of service of network in terms of end-to-end delay and delivery ratio.

Download or read book Ad Hoc Mobile and Wireless Networks written by Samuel Pierre and published by Springer. This book was released on 2003-10-31 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference on Ad-Hoc Networks and Wireless, ADHOiNOW 2003, held in Montreal, Canada in October 2003. The 23 revised full papers and 4 revised short papers presented were carefully reviewed and selected from 42 submissions. All current aspects of ad-hoc networking, mobile, wireless, and cooperating communication systems are addressed including network architectures, access control and discovery, multicasting protocols, performance, quality of service, QoS, routing protocols, scalability, security, and self-configuration.

Download or read book Design and Implementation of a Middleware for Ad hoc Multi hop Networking on Android written by Tiancheng Zhuang and published by . This book was released on 2012 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently on smartphones, short distance wireless communication between multiple phones mostly relies on existing network infrastructure, which has some limitations and is not flexible enough for many networking scenarios on smartphones. An ad hoc networking support on mobile devices operating system is desired by many mobile application developers. The aim of this thesis is to implement a Java based middleware on Android platform for multi-hop wireless ad-hoc networking over IEEE 802.11. The Ad-hoc On-demand Distance Vector (AODV) [2] is implemented for route discovery and the Reliable User Datagram Protocol (RUDP) [3] is applied for reliable user data delivery. The implementation is developed in the user space of Android system and requires few kernel modifications, so the system can be easily ported to different phone models. The application interface provided by our middleware service is simple and easy to use, so the implementation could be a good underlying ad-hoc networking support for developing Android applications. In this report, the design and implementation of the middleware is presented and experiments have been done to evaluate the routing and throughput performance of the implementation. To verify the correctness and effectiveness of our implementation, a demo file sharing application is developed on top of the middleware.

Download or read book Simulation in Computer Network Design and Modeling Use and Analysis written by Al-Bahadili, Hussein and published by IGI Global. This book was released on 2012-02-29 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book reviews methodologies in computer network simulation and modeling, illustrates the benefits of simulation in computer networks design, modeling, and analysis, and identifies the main issues that face efficient and effective computer network simulation"--Provided by publisher.

Download or read book Mobile Ad Hoc Networks written by Xin Wang and published by BoD – Books on Demand. This book was released on 2011-01-30 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Being infrastructure-less and without central administration control, wireless ad-hoc networking is playing a more and more important role in extending the coverage of traditional wireless infrastructure (cellular networks, wireless LAN, etc). This book includes state-of the-art techniques and solutions for wireless ad-hoc networks. It focuses on the following topics in ad-hoc networks: vehicular ad-hoc networks, security and caching, TCP in ad-hoc networks and emerging applications. It is targeted to provide network engineers and researchers with design guidelines for large scale wireless ad hoc networks.

Download or read book Conference Record written by and published by . This book was released on 2001 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Robust Loop free On demand Routing in Ad Hoc Networks written by Hari Rangarajan and published by . This book was released on 2006 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis, we explore new techniques for robust, efficient, loop-free on-demand routing in Mobile Ad hoc Networks (MANETs) using the same information (i.e., topology information, sequence numbers, etc.,) used in prior on-demand routing protocol proposals. We provide new insights into the robustness of protocols based on destination-sequence numbers when operating with node failures and loss of routing information, and present a new destination-sequence number framework that works correctly even with failure conditions. We also show how destination-sequence numbers can be manipulated as routing labels for improving performance, rather than being strictly treated as time-stamps. We present two different routing approaches that exploit the topology information that can be collected on-demand during the route request ood search. The first approach translates topology information into labels that are then stored at nodes in strict lexicographic ordering along any successor path to a destination. Loop-freedom is maintained by allowing nodes to only pick "smaller" labels. The second approach maintains a list of topology information that should not be trusted in-addition to the known path to a destination. Using the notion of trusted topology, nodes can always make routingWe conclude our research with a new on-demand routing technique that exploits the route request search process, which is an integral part of any on-demand routing protocol. Without requiring any additional mechanisms or information, we use the uniqueness of route requests to realize a on-demand routing framework. We, then, present extensions to the basic framework to improve performance using more information that can be collected during the flood search process.

Download or read book The Design and Performance Evaluation of a Proactive Multipath Routing Protocol for Mobile Ad Hoc Networks written by Ali Abdalla Etorban and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to unpredictable network topology changes, routing in Mobile Ad Hoc Networks (MANET) is an important and challenging research area. The routing protocol should detect and maintain a good route(s) between source and destination nodes in these dynamic networks. Many routing protocols have been proposed for mobile ad hoc networks, and none can be considered as the best under all conditions. This thesis presents the design and implementation of a new proactive multipath MANET routing protocol. The protocol, named Multipath Destination Sequenced Distance Vector (MDSDV), is based on the well known single path Destination Sequenced Distance Vector (DSDV). We show that the protocol finds node-disjoint paths, i.e., paths which do not have any nodes in common, except for the source and the destination. The thesis presents a systematic evaluation of MDSDV in comparison with three well known protocols: one proactive (DSDV), and two reactive (AODV) and (DSR). MDSDV behaves very well in terms of its packet delivery fraction and data dropped in both static and dynamic networks. It delivers nearly 100% of data in dense networks (networks with more than 20 nodes). The speed of the nodes and the number of sources have a low impact on its performance.

Download or read book MobiWac 04 written by and published by . This book was released on 2004 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: