Download or read book Probabilistic Prediction based Routing in Disruption tolerant Networks written by Quan Yuan and published by . This book was released on 2009 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Disruption-Tolerant Networks (DTNs) are the networks comprised of a set of wireless nodes, and they experience unstable connectivity and frequent connection disruption because of the limitations of radio range, power, network density, device failure, and noise. DTNs are characterized by their lack of infrastructure, device limitation, and intermittent connectivity. Such characteristics make conventional wireless network routing protocols fail, as they are designed with the assumption the network stays connected. Thus, routing in DTNs becomes a challenging problem, due to the temporal scheduling element in a dynamic topology. One of the solutions is prediction-based, where nodes mobility is estimated with a history of observations. Then, the decision of forwarding messages during data delivery can be made with that predicted information. Current prediction-based routing protocols can be divided into two sub-categories in terms of that whether they are probability related: probabilistic and non-probabilistic. This dissertation focuses on the probabilistic prediction-based (PPB) routing schemes in DTNs. We find that most of these protocols are designed for a specified topology or scenario. So almost every protocol has some drawbacks when applied to a different scenario. Because every scenario has its own particular features, there could hardly exist a universal protocol which can suit all of the DTN scenarios. Based on the above motivation, we investigate and divide the current DTNs scenarios into three categories: Voronoi-based, landmark-based, and random moving DTNs. For each category, we design and implement a corresponding PPB routing protocol for either basic routing or a specified application with considering its unique features. Specifically, we introduce a Predict and Relay routing protocol for Voronoi-based DTNs, present a single-copy and a multi-copy PPB routing protocol for landmark-based DTNs, and propose DRIP, a dynamic Voronoi region-based publish/subscribe protocol, to adapt publish/subscribe systems to random moving DTNs. New concepts, approaches, and algorithms are introduced during our work.
Download or read book Advanced Information Networking and Applications written by Leonard Barolli and published by Springer Nature. This book was released on with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Algorithms and Architectures for Parallel Processing written by Guojin Wang and published by Springer. This book was released on 2015-11-18 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Workshops and Symposiums of the 15th International Conference on Algorithms and Architectures for Parallel Processing, ICA3PP 2015, held in Zhangjiajie, China, in November 2015. The program of this year consists of 6 symposiums/workshops that cover a wide range of research topics on parallel processing technology: the Sixth International Workshop on Trust, Security and Privacy for Big Data, TrustData 2015; the Fifth International Symposium on Trust, Security and Privacy for Emerging Applications, TSP 2015; the Third International Workshop on Network Optimization and Performance Evaluation, NOPE 2015; the Second International Symposium on Sensor-Cloud Systems, SCS 2015; the Second International Workshop on Security and Privacy Protection in Computer and Network Systems, SPPCN 2015; and the First International Symposium on Dependability in Sensor, Cloud, and Big Data Systems and Applications, DependSys 2015. The aim of these symposiums/workshops is to provide a forum to bring together practitioners and researchers from academia and industry for discussion and presentations on the current research and future directions related to parallel processing technology. The themes and topics of these symposiums/workshops are a valuable complement to the overall scope of ICA3PP 2015 and give additional values and interests.
Download or read book Routing in Opportunistic Networks written by Isaac Woungang and published by Springer Science & Business Media. This book was released on 2013-09-10 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Routing in Opportunistic Networks focuses on the basics of opportunistic networks, modeling and communication in opportunistic networks, routing in opportunistic networks, and collaboration and cooperation in opportunistic networks. The editors will cover such topics as mobility characterization and discovery in opportunistic networks, scheduling and medium access control in opportunistic networks as well as testbed, tools, and measurements for opportunistic networks.
Download or read book Wireless Algorithms Systems and Applications written by Yingshu Li and published by Springer Science & Business Media. This book was released on 2008-10-07 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Third Annual International Conference on Wireless Algorithms, Systems, and Applications, WASA 2008, held in Dallas, TX, USA, in October 2008. The 35 revised full papers presented together with 3 keynote talks and 15 invited lectures were carefully reviewed and selected from numerous submissions. Providing a forum for researchers and practitioners, from the academic, industrial and governmental sectors, the papers address current research and development efforts of various issues in the area of algorithms, systems and applications for current and next generation infrastructure and infrastructureless wireless networks.
Download or read book Message Dissemination Techniques in Opportunistic Underwater Sensor Networks written by Linfeng Liu and published by Springer Nature. This book was released on 2020-12-21 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the architectures and characteristics of OUSNs, the mobility models of OUSN nodes, the challenges of message dissemination, and some evaluation indexes of message dissemination. Then, this book provides some message dissemination techniques in OUSNs from the viewpoints of nodes and data messages, respectively. The proposed message dissemination techniques and their conclusions can provide some useful insights to improve the performance of data message dissemination and promote the future applications of OUSNs. Researchers and engineers in the field of underwater sensor networks can benefit from the book.
Download or read book Advances in Computing Informatics Networking and Cybersecurity written by Petros Nicopolitidis and published by Springer Nature. This book was released on 2022-03-03 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new research contributions in the above-mentioned fields. Information and communication technologies (ICT) have an integral role in today’s society. Four major driving pillars in the field are computing, which nowadays enables data processing in unprecedented speeds, informatics, which derives information stemming for processed data to feed relevant applications, networking, which interconnects the various computing infrastructures and cybersecurity for addressing the growing concern for secure and lawful use of the ICT infrastructure and services. Its intended readership covers senior undergraduate and graduate students in Computer Science and Engineering and Electrical Engineering, as well as researchers, scientists, engineers, ICT managers, working in the relevant fields and industries.
Download or read book Human Centered Computing written by Qiaohong Zu and published by Springer. This book was released on 2015-03-03 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes revised selected papers from the refereed proceedings of the First Human Centered Computing Conference, HCC 2014, that consolidated and further develops the successful ICPCA/SWS conferences on Pervasive Computing and the Networked World. The 54 full papers and 30 short papers presented in this volume were carefully reviewed and selected from 152 submissions. These proceedings present research papers investigating into a variety of aspects towards human centric intelligent societies. They cover the categories: infrastructure and devices; service and solution; data and knowledge; and community.
Download or read book Networked Systems written by Vincent Gramoli and published by Springer. This book was released on 2013-08-02 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the revised selected papers of the First International Conference on Networked Systems, NETYS 2013, held in Marrakech, Morocco, in May 2013. The 33 papers (17 regular and 16 short papers) presented were carefully reviewed and selected from 74 submissions. They address major topics from theory and practice of networked systems: multi-core architectures, middleware, environments, storage clusters, as well as peer-to-peer, sensor, wireless, and mobile networks.
Download or read book From Parallel to Emergent Computing written by Andrew Adamatzky and published by CRC Press. This book was released on 2019-03-13 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern computing relies on future and emergent technologies which have been conceived via interaction between computer science, engineering, chemistry, physics and biology. This highly interdisciplinary book presents advances in the fields of parallel, distributed and emergent information processing and computation. The book represents major breakthroughs in parallel quantum protocols, elastic cloud servers, structural properties of interconnection networks, internet of things, morphogenetic collective systems, swarm intelligence and cellular automata, unconventionality in parallel computation, algorithmic information dynamics, localized DNA computation, graph-based cryptography, slime mold inspired nano-electronics and cytoskeleton computers. Features Truly interdisciplinary, spanning computer science, electronics, mathematics and biology Covers widely popular topics of future and emergent computing technologies, cloud computing, parallel computing, DNA computation, security and network analysis, cryptography, and theoretical computer science Provides unique chapters written by top experts in theoretical and applied computer science, information processing and engineering From Parallel to Emergent Computing provides a visionary statement on how computing will advance in the next 25 years and what new fields of science will be involved in computing engineering. This book is a valuable resource for computer scientists working today, and in years to come.
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 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 Innovations for Community Services written by Siddharth Swarup Rautaray and published by Springer Nature. This book was released on 2019-12-15 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 20th International Conference on Innovations for Community Services, I4CS 2020, held in Bhubaneswar, India, in January, 2020. The 16 revised full papers presented in this volume were carefully reviewed and selected from 46 submissions. The papers focus on all aspects of: communities and social networks; information and system security; cloud and network security; communication and networks; and data analytics and e-governance.
Download or read book Mobile Opportunistic Networks written by Mieso K. Denko and published by CRC Press. This book was released on 2016-04-19 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: From fundamentals to advanced concepts, this book provides comprehensive technical coverage of this rapidly emerging communications technology. The first section focuses on modeling, networking architecture, and routing problems. The second section examines opportunistic networking technologies and applications. Supplying detailed discussions of key research challenges and open issues, this comprehensive resource provides a clear understanding of industrial and professional standards, communication architectures, network algorithms and protocols, emerging applications, and the latest experimental studies-including simulation tools and implementation test beds.
Download or read book Cost Efficient Predictive Routing in Disruption Tolerant Networks written by Satyajeet Deshpande and published by . This book was released on 2011 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: We compare our protocol with some past replication routing protocols and some forwarding protocols who use average metrics. We show that our protocol outperforms the replication protocols almost three times in terms of cost and outperforms the forwarding protocols almost two times. We also show that it achieves equivalent throughput and delay compared to replication protocols who have the best delay and throughput and it has better throughput and delay compared to the forwarding protocols. We also show how our protocol can be refined to suit to different delay requirements of a network.
Download or read book Secure and Digitalized Future Mobility written by Yue Cao and published by CRC Press. This book was released on 2022-12-01 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the recent advanced technologies in Intelligent Transportation Systems (ITS), with a view on how Unmanned Aerial Vehicles (UAVs) cooperate with future vehicles. ITS technologies aim to achieve traffic efficiency and advance transportation safety and mobility. Known as aircrafts without onboard human operators, UAVs are used across the world for civilian, commercial, as well as military applications. Common deployment include policing and surveillance, product deliveries, aerial photography, agriculture, and drone racing. As the air-ground cooperation enables more diverse usage, this book addresses the holistic aspects of the recent advanced technologies in ITS, including Information and Communication Technologies (ICT), cyber security, and service management from principle and engineering practice aspects. This is achieved by providing in-depth study on several major topics in the fields of telecommunications, transport services, cyber security, and so on. The book will serve as a useful text for transportation, energy, and ICT societies from both academia and industrial sectors. Its broad scope of introductory knowledge, technical reviews, discussions, and technology advances will also benefit potential authors.
