Methodologies For The Analysis Of Value From Delay Tolerant Inter Satellite Networking PDF Download
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| Author | : Christopher John Lowe |
| Publisher | : |
| Total Pages | : 372 |
| Release | : 2017 |
| Genre | : |
| ISBN | : |
Download Methodologies for the Analysis of Value from Delay-tolerant Inter-satellite Networking Book in PDF, ePub and Kindle
In a world that is becoming increasingly connected, both in the sense of people and devices, it is of no surprise that users of the data enabled by satellites are exploring the potential brought about from a more connected Earth orbit environment. Lower data latency, higher revisit rates and higher volumes of information are the order of the day, and inter-connectivity is one of the ways in which this could be achieved. Within this dissertation, three main topics are investigated and built upon. First, the process of routing data through intermittently connected delay-tolerant networks is examined and a new routing protocol introduced, called Spae. The consideration of downstream resource limitations forms the heart of this novel approach which is shown to provide improvements in data routing that closely match that of a theoretically optimal scheme. Next, the value of inter-satellite networking is derived in such a way that removes the difficult task of costing the enabling inter-satellite link technology. Instead, value is defined as the price one should be willing to pay for the technology while retaining a mission value greater than its non-networking counterpart. This is achieved through the use of multi-attribute utility theory, trade-space analysis and system modelling, and demonstrated in two case studies. Finally, the effects of uncertainty in the form of sub-system failure are considered. Inter-satellite networking is shown to increase a system’s resilience to failure through introduction of additional, partially failed states, made possible by data relay. The lifetime value of a system is then captured using a semi-analytical approach exploiting Markov chains, validated with a numerical Monte Carlo simulation approach. It is evident that while inter-satellite networking may offer more value in general, it does not necessarily result in a decrease in the loss of utility over the lifetime.
| Author | : Juan A. Fraire, |
| Publisher | : Artech House |
| Total Pages | : 272 |
| Release | : 2017-12-31 |
| Genre | : Technology & Engineering |
| ISBN | : 1630815179 |
Download Delay Tolerant Setellite Networks Book in PDF, ePub and Kindle
This cutting-edge resource provides a comprehensive treatment of applying delay-tolerant networking (DTN) principles to satellite-based network communications. Detailed models and analytical tools are used to evaluate performance and provide guidance in the field. This book presents the state-of-the-art in existing on-board and ground technologies that support satellite applications, such as communications protocols, algorithms, and security procedures. Readers gain key insight into the fundamental concepts of DTN applied to satellite networks (DTSNs) and case studies are provided. This book presents an authoritative introduction to the methods for computing metrics for satellite network modeling. Satellite communications are examined, including satellite links, communication protocols, and distributed multiple access schemes, such as time division, code division, and frequency division. This book focuses on ways in which DTN might make terrestrial communication and observation via earth orbiting satellites less expensive and more robust. The fundamental concepts and analysis of the Ring Road Architecture are explored. Unique analyses on the motivating factors of using Inter-Satellite Links (ISL) to form networks in disruptive environments in space are discussed. This book explores the limits of larger and complex DTSNs as the number of satellites increase and different orbital formations become possible. As satellite networks become larger in upcoming years this book provides a guide for readers to stay informed about standard protocols such as DTN that will allow seamless interoperation, cost reduction, and risk mitigation.
| Author | : Stephen Farrell |
| Publisher | : Artech House Publishers |
| Total Pages | : 256 |
| Release | : 2006 |
| Genre | : Computers |
| ISBN | : |
Download Delay- and Disruption-tolerant Networking Book in PDF, ePub and Kindle
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.
| Author | : Y. Fun Hu |
| Publisher | : Wiley |
| Total Pages | : 272 |
| Release | : 2002-01-21 |
| Genre | : Science |
| ISBN | : 9780471486695 |
Download Service Efficient Network Interconnection via Satellite Book in PDF, ePub and Kindle
A Local Area Network (LAN) is a network usually within a single office or building that links desktop computers with each other and with peripherals such as servers and printers. The interconnect is the electrical and functional association of two different services, often provided by different suppliers, and it is from LAN inter-connection that telecoms operators seek to profit. The application of LAN interconnection via satellite can be used to complement and extend existing terrestrial public access networks through interconnection of clusters of broadband islands (such as LANs and MANs) in remote regions, where terrestrial lines are expensive to install and operate. Examples include: * Hospitals/clinics in remote and rural areas can be connected to the central hospitals in a tele-medicine environment * Remote offices can be connected to the central office to facilitate tele-working * University/colleges can be inter-connected to provide tele-education facilities Similarly, the possibility to provide access to such facilities in developing regions of the world is also viable and particularly attractive in the short to mid-term. Private LAN connection facilities could also be made available to the corporate user, offering the possibility to establish broadband internet access within a closed user group. Such a scenario could be of interest to the financial sector. By gathering the knowledge and experiences of well-known satellite systems experts from different parts of Europe this comprehensive volume provides detailed analysis on technical aspects for interconnecting local area network using satellite. Starting from traffic source modelling for different types of applications and services to different types of transmission techniques and networking functions for supporting such services, different case studies are presented to analyse the performance of such technologies. By providing an insight to current and future developments in satellite communications systems and by covering a broad range of materials in technical aspects in relation to satellite communication systems technologies, this volume will be of tremendous use to researchers, academia and industry. * First book to present such a thorough description of the reliability functions of satellite systems * Discusses IP over satellite * Provides a unique analysis and description of different simulation tools that are under development for evaluating the performance of satellite systems * Includes a chapter devoted to traffic modelling for satellite systems * Reviews current research and developments in security and discusses how such security functions can be implemented over satellite networks * Addresses different types of routing strategies and includes three different case studies which have been carried out to analyse the performance of different routing strategies
| Author | : Andrew Feltman |
| Publisher | : |
| Total Pages | : 122 |
| Release | : 1999-03-01 |
| Genre | : |
| ISBN | : 9781423546009 |
Download Trade-off Analysis of Communications Capabilities of Inter-Satellite Links Book in PDF, ePub and Kindle
This thesis designs, develops, and uses software Graphical User Interfaces (GUIs) to analyze the communications capabilities of Radio Frequency (RF) Inter-Satellite Links (ISLs). The GUIs are geared towards analyzing the proposed ISLs of the Discoverer II program, but are general enough to permit analysis of any free-space RF ISLs. Discoverer II is a demonstration program of low-earth orbiting satellites and is primarily focused on satellite-based sensor technology. This thesis shows RF ISLs can meet the program requirement to broadcast the sensor data back to CONUS in near-real-time. The GUIs operate in real-time and explore trade-offs in the communications capability by varying the requirements, parameters, and components of the system design. Three GUIs are developed. The first GUl uses parameters from an assumed satellite constellation geometry to calculate the operating range of the ISLs. The second GUl solves for an unknown parameter of the communications system when all other parameters are given. The third GUl extends the analysis capability by plotting the trade-off between two parameters over a specified range of data. The analysis of the Discoverer II ISLs indicates that antenna radius is a very significant factor in the trade-off analysis, as well as being an important satellite design parameter.
| Author | : Chantal Cappelletti |
| Publisher | : Academic Press |
| Total Pages | : 500 |
| Release | : 2020-09-25 |
| Genre | : Technology & Engineering |
| ISBN | : 012817885X |
Download CubeSat Handbook Book in PDF, ePub and Kindle
CubeSat Handbook: From Mission Design to Operations is the first book solely devoted to the design, manufacturing, and in-orbit operations of CubeSats. Beginning with an historical overview from CubeSat co-inventors Robert Twiggs and Jordi Puig-Suari, the book is divided into 6 parts with contributions from international experts in the area of small satellites and CubeSats. It covers topics such as standard interfaces, on-board & ground software, industry standards in terms of control algorithms and sub-systems, systems engineering, standards for AITV (assembly, integration, testing and validation) activities, and launch regulations. This comprehensive resource provides all the information needed for engineers and developers in industry and academia to successfully design and launch a CubeSat mission. Provides an overview on all aspects that a CubeSat developer needs to analyze during mission design and its realization Features practical examples on how to design and deal with possible issues during a CubeSat mission Covers new developments and technologies, including ThinSats and PocketQubeSats
| Author | : |
| Publisher | : |
| Total Pages | : 456 |
| Release | : 1995 |
| Genre | : Aeronautics |
| ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
| Author | : Gerard Maral |
| Publisher | : John Wiley & Sons |
| Total Pages | : 1159 |
| Release | : 2020-02-03 |
| Genre | : Technology & Engineering |
| ISBN | : 1119382122 |
Download Satellite Communications Systems Book in PDF, ePub and Kindle
The updated 6th edition of the authoritative and comprehensive textbook to the field of satellite communications engineering The revised and updated sixth edition of Satellite Communications Systems contains information on the most recent advances related to satellite communications systems, technologies, network architectures and new requirements of services and applications. The authors – noted experts on the topic – cover the state-of-the-art satellite communication systems and technologies and examine the relevant topics concerning communication and network technologies, concepts, techniques and algorithms. New to this edition is information on internetworking with the broadband satellite systems, more intensive coverage of Ka band technologies, GEO high throughput satellite (HTS), LEO constellations and the potential to support the current new broadband Internet services as well as future developments for global information infrastructure. The authors offer details on digital communication systems and broadband networks in order to provide high-level researchers and professional engineers an authoritative reference. In addition, the book is designed in a user-friendly format. This important text: Puts the focus on satellite communications and networks as well as the related applications and services Provides an essential, comprehensive and authoritative updated guide to the topic Contains new topics including the space segment, ground, ground satellite control and network management, relevant terrestrial networks and more Includes helpful illustrations, tables and problems to enhance learning Offers a summary at the beginning of each chapter to help understand the concepts and principles discussed Written for research students studying or researching in the areas related to satellite communications systems and networks, the updated sixth edition of Satellite Communications Systems offers an essential guide to the most recent developments in the field of satellite communications engineering and references to international standards.
| Author | : Joel J.P.C. Rodrigues |
| Publisher | : Elsevier |
| Total Pages | : 301 |
| Release | : 2014-11-20 |
| Genre | : Computers |
| ISBN | : 0857098462 |
Download Advances in Delay-tolerant Networks (DTNs) Book in PDF, ePub and Kindle
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
| Author | : Yongguang Zhang |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 274 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 1461504317 |
Download Internetworking and Computing Over Satellite Networks Book in PDF, ePub and Kindle
The emphasis of this text is on data networking, internetworking and distributed computing issues. The material surveys recent work in the area of satellite networks, introduces certain state-of-the-art technologies, and presents recent research results in these areas.
