Download or read book Routing and Performance Evaluation of Disruption Tolerant Networks written by Mouhamad Ibrahim and published by . This book was released on 2008 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis contains two parts. The first part of the thesis focuses on the performance evaluation of routing protocols for disruption tolerant networks (DTNs) when these networks are augmented by fixed relays, termed throwboxes. As a first step, we show through extensive simulations that successive instants of meeting between a throwbox and a mobile node moving according to some random mobility model can be well modelled by a Poisson process. We provide explicit formula for the rate of the Poisson process and we show that this rate depends among others on the spatial stationary probability density function of the mobility model as well as on the probability density function of throwboxes spatial distribution. As a second step, we study the impact of adding throwboxes on the performance of two common routing protocols, namely the epidemic and the multicopy two-hop relay protocols. We develop explicit expressions for the distribution and the mean of the delivery time of a packet, as well as for the number of generated copies. Following that, we propose five routing strategies that rely on the presence of throwboxes to perform packet forwarding. We therefore introduce an analytical framework that is based on a markovian model to compute and to compare analytically diverse performance metrics of these strategies. In the second part of the thesis, we concern ourselves with the design and the evaluation of an adaptive mechanism to enhance the performance of the backoff algorithm of IEEE 802.11 standard. We propose an extension of the backoff algorithm where the objective is to enhance the throughput and the delay performances in the case of high number of active uses.
Download or read book Advances in Delay tolerant Networks DTNs written by Joel J.P.C. Rodrigues and published by Elsevier. This book was released on 2014-11-20 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part one looks at delay-tolerant network architectures and platforms including DTN for satellite communications and deep-space communications, underwater networks, networks in developing countries, vehicular networks and emergency communications. Part two covers delay-tolerant network routing, including issues such as congestion control, naming, addressing and interoperability. Part three explores services and applications in delay-tolerant networks, such as web browsing, social networking and data streaming. Part four discusses enhancing the performance, reliability, privacy and security of delay-tolerant networks. Chapters cover resource sharing, simulation and modeling and testbeds. Reviews the different types of DTN and shows how they can be applied in satellite and deep-space communications, vehicular and underwater communications, and during large-scale disasters Considers the potential for rapid selection and dissemination of urgent messages is considered Reviews the breadth of areas in which DTN is already providing solutions and the prospects for its wider adoption
Download or read book Delay and Disruption Tolerant Networks written by Aloizio Pereira da Silva and published by CRC Press. This book was released on 2018-09-04 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- Delay and disruption tolerant network architecture -- DTN platforms -- Case study: interplanetary networks -- Delay and disruption tolerant network routing -- DTN coding -- DTN for spacecraft -- Delay-tolerant security -- DTN of things -- DTN congestion control -- Licklider transmission protocol (LTP) -- "Delay-/disruption- tolerant networking performance evaluation with -- Dtnperf 3." -- Bibliography
Download or read book Delay and Disruption tolerant Networking written by Stephen Farrell and published by Artech House Publishers. This book was released on 2006 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delay and disruption networking (DTN) is an up-and-coming technology that enables networking in extreme environments. This complete reference on DTN covers applications requirements, DTN protocols, and network implementation. Thoroughly examining the causes of delay and disruption, the book shows how to engineer a robust network that can survive the harshest conditions.
Download or read book Delay and Disruption Tolerant Networks written by Aloizio Pereira da Silva and published by CRC Press. This book was released on 2018-09-04 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delay- and Disruption Tolerant Networks (DTNs) are networks subject to arbitrarily long-lived disruptions in connectivity and therefore cannot guarantee end-to-end connectivity at all times. Consequently DTNs called for novel core networking protocols since most existing Internet protocols rely on the network’s ability to maintain end-to-end communication between participating nodes. This book presents the fundamental principles that underline DTNs. It explains the state-of-the-art on DTNs, their architecture, protocols, and applications. It also explores DTN’s future technological trends and applications. Its main goal is to serve as a reference for researchers and practitioners.
Download or read book Advances in Delay Tolerant Networks DTNs written by Joel J.P.C. Rodrigues and published by Woodhead Publishing. This book was released on 2020-11-20 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Delay-Tolerant Networks: Architecture and Enhanced Performance, Second Edition provides an important overview of delay-tolerant networks (DTNs) for researchers in electronics, computer engineering, telecommunications and networking for those in academia and R&D in industrial sectors. Part I reviews the technology involved and the prospects for improving performance, including different types of DTN and their applications, such as satellite and deep-space communications and vehicular communications. Part II focuses on how the technology can be further improved, addressing topics, such as data bundling, opportunistic routing, reliable data streaming, and the potential for rapid selection and dissemination of urgent messages. Opportunistic, delay-tolerant networks address the problem of intermittent connectivity in a network where there are long delays between sending and receiving messages, or there are periods of disconnection. Reviews the different types of DTN and shows how they can be applied in satellite and deep-space communications, vehicular communications (including unmanned aerial), and during large-scale disasters Considers security concerns for DTN and potential for rapid selection and dissemination of urgent messages Reviews the breadth of areas in which DTN is already providing solutions Covers the prospects for DTN's wider adoption and development of standards
Download or read book Algorithm Design and Performance Analysis of Routing in Delay Tolerant Networks written by Yun Teng and published by . This book was released on 2005 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of International Conference on Recent Trends in Computing written by Rajendra Prasad Mahapatra and published by Springer Nature. This book was released on 2023-03-20 with total page 837 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of high-quality peer-reviewed research papers presented at International Conference on Recent Trends in Computing (ICRTC 2022) held at SRM Institute of Science and Technology, Ghaziabad, Delhi, India, during 3 – 4 June 2022. The book discusses a wide variety of industrial, engineering and scientific applications of the emerging techniques. The book presents original works from researchers from academic and industry in the field of networking, security, big data and the Internet of things.
Download or read book Modeling and Analysis of Delay Tolerant Networks written by Rahul Sehgal and published by . This book was released on 2016 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delay and Disruption Tolerant Networks (DTNs) refer to a range of networks with link intermittency which is mainly driven by mobility, predictable or unpredictable network environmental conditions. Examples of DTNs include interplanetary networks (satellite communication), Mobile Ad Hoc Networks (MANETs) without topology information, battlefield networks, mule networks, sensor networks, smart highways, remote environmental and animal-movement outposts. Unlike traditional networks in which connectivity, perhaps through alternate routing, always exists between a pair of nodes with deterministic topology, DTNs suer from this very important characteristic in two respects; probabilistic topology, and absence of continuous data forwarding. These characteristics make it difficult to model and analyze DTNs for various network performance analysis and ultimately applications support. From queuing theory perspective, link intermittency not only disrupt the packet arrival distribution, it also disrupt the service time (packet processing) distribution, and that significantly affect the end-to-end delay and jitter (delay variation) for applications. This dissertation intends to address the implication of link disruption on the end-to-end delay in DTNs by modeling the link behavior in the context of tandem open queuing systems. First, we employ the long-term probabilistic routing matrix associated with a disruptive network topology along with alternate paths to approximate the end-to-end (E2E) delay. Second, we incorporate the link disruption time into the service time for each output link to model the mean queuing delay for each node. Third, we model the delay as a function of first-contact-time between two disconnected components, given a link disruption can partition the underlying graph. These models assume that the traffic flows follow Jackson's theorem. In effect, we extend Jackson theorem to accommodate service disruption. In all, we tested our theoretical approximations with simulation models using well-known DTN traces obtained from human and vehicular mobility. We also generated synthetic contact time, inter-contact time, arrival and departure processes to verify these approximation models under various traffic loads and disruptive intensity.
Download or read book Proceedings of Ninth International Congress on Information and Communication Technology written by Xin-She Yang and published by Springer Nature. This book was released on with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ad Hoc Mobile and Wireless Networks written by Luigi Alfredo Grieco and published by Springer Nature. This book was released on 2020-10-15 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 19th International Conference on Ad-Hoc, Mobile, and Wireless Networks, ADHOC-NOW 2020, held in Bari, Italy, in October 2020.* The 19 full and 4 short papers presented were carefully reviewed and selected from 39 submissions. The papers provide an in-depth and stimulating view on the new frontiers in the field of mobile, ad hoc and wireless computing. They are organized in the following topical sections: intelligent, programmable and delay- and disruption- tolerant networks; internet of drones and smart mobility; internet of things and internet of medical things; secure communication protocols and architectures; and wireless systems. *The conference was held virtually due to the COVID-19 pandemic.
Download or read book Delay Tolerant Networks written by Athanasios V. Vasilakos and published by CRC Press. This book was released on 2016-04-19 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: A class of Delay Tolerant Networks (DTN), which may violate one or more of the assumptions regarding the overall performance characteristics of the underlying links in order to achieve smooth operation, is rapidly growing in importance but may not be well served by the current end-to-end TCP/IP model. Delay Tolerant Networks: Protocols and Applicat
Download or read book Quantitative Evaluation of Systems written by Erika Ábrahám and published by Springer Nature. This book was released on 2022-09-10 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 19th International Conference on Quantitative Evaluation Systems, QEST 2022, held in Warsaw, Poland, in September 2022. The 19 full papers presented together with 1 keynote paper were carefully reviewed and selected from 44 submissions. The papers are organized in the following topics: program analysis; parameter synthesis; markovian agents and population models; dynamical systems; tools; applications and automata theory; and applications.
Download or read book Opportunistic Networks written by Anshul Verma and published by CRC Press. This book was released on 2021-08-18 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The opportunistic network is an emerging and recent area of research. To make this research area more adaptable for practical and industrial use, there is a need to further investigate several research challenges in all aspects of opportunistic networks. Therefore, Opportunistic Networks: Fundamentals, Applications and Emerging Trends provides theoretical, algorithmic, simulation, and implementation-based research developments related to fundamentals, applications, and emerging research trends in opportunistic networks. The book follows a theoretical approach to describe fundamentals to beginners and incorporates a practical approach depicting the implementation of real-life applications to intermediate and advanced readers. This book is beneficial for academicians, researchers, developers, and engineers who work in or are interested in the fields related to opportunistic networks, delay tolerant networks, and intermittently connected ad hoc networks. This book also serves as a reference book for graduate and postgraduate courses in computer science, computer engineering, and information technology streams.
Download or read book Design and Performance Analysis of Opportunistic Routing Protocols for Delay Tolerant Networks written by Tamer Abdel-kader and published by . This book was released on 2012 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delay Tolerant Networks (DTNs) are characterized by the lack of continuous end-to-end connections because of node mobility, constrained power sources, and limited data storage space of some or all of its nodes. Applications of DTNs include vehicular networks and sensor networks in suburban and rural areas. The intermittent connection in DTNs creates a new and challenging environment that has not been tackled before in wireless and wired networks. Traditional routing protocols fail to deliver data packets because they assume the existence of continuous end-to-end connections. To overcome the frequent disconnections, a DTN node is required to store data packets for long periods of time until it becomes in the communication range of other nodes. In addition, to increase the delivery probability, a DTN node spreads multiple copies of the same packet on the network so that one of the copies reaches the destination. Given the limited storage and energy resources of DTN nodes, there is a trade off between maximizing delivery and minimizing storage and energy consumption. DTN routing protocols can be classified as either blind routing, in which no information is provided to select the next node in the path, or guided routing, in which some network information is used to guide data packets to their destinations. In addition they differ in the amount of overhead they impose on the network and its nodes. The objective of DTN routing protocols is to deliver as many packets as possible. Acquiring network information helps in maximizing packet delivery probability and minimizing the network overhead resulting from replicating many packet copies. Network information could be node contact times and durations, node buffer capacities, packet lifetimes, and many others. The more information acquired, the higher performance could be achieved. However, the cost of acquiring the network information in terms of delay and storage could be high to the degree that render the protocol impractical. In designing a DTN routing protocol, the trade-off between the benefits of acquiring information and its costs should be considered. In this thesis, we study the routing problem in DTN with limited resources. Our objective is to design and implement routing protocols that effectively handles the intermittent connection in DTNs to achieve high packet delivery ratios with lower delivery cost.
Download or read book Ambient Communications and Computer Systems written by Yu-Chen Hu and published by Springer. This book was released on 2019-03-30 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes high-quality, peer-reviewed papers from the International Conference on Recent Advancement in Computer, Communication and Computational Sciences (RACCCS-2018), held at Aryabhatta College of Engineering & Research Center, Ajmer, India on August 10–11, 2018, presenting the latest developments and technical solutions in computational sciences. Networking and communication are the backbone of data science, data- and knowledge engineering, which have a wide scope for implementation in engineering sciences. This book offers insights that reflect the advances in these fields from upcoming researchers and leading academicians across the globe. Covering a variety of topics, such as intelligent hardware and software design, advanced communications, intelligent computing technologies, advanced software engineering, the web and informatics, and intelligent image processing, it helps those in the computer industry and academia use the advances in next-generation communication and computational technology to shape real-world applications.
Download or read book Applied Informatics written by Hector Florez and published by Springer Nature. This book was released on 2019-10-28 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed papers of the Second International Conference on Applied Informatics, ICAI 2019, held in Madrid, Spain, in November 2019. The 37 full papers and one short paper were carefully reviewed and selected from 98 submissions. The papers are organized in topical sections on bioinformatics; data analysis; decision systems; health care information systems; IT Architectures; learning management systems; robotic autonomy; security services; socio-technical systems; software design engineering.
