Channel Modeling And Physical Layer Optimization In Copper Line Networks
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Channel Modeling And Physical Layer Optimization In Copper Line Networks
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Author : Rainer Strobel
language : en
Publisher: Springer
Release Date : 2018-06-20
Channel Modeling And Physical Layer Optimization In Copper Line Networks written by Rainer Strobel and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-20 with Technology & Engineering categories.
This book investigates the physical layer aspects of high-speed transmission on twisted-pair copper wires, where the most performance-critical components are multi-input multi-output (MIMO) precoding and multi-line spectrum optimization as well as optimized scheduling of the transmission time slots on the fiber to the distribution point (FTTdp) copper link. The book brings theoretical results into the implementation, which requires the introduction of realistic channel models and more practical implementation constraints as found in the copper access network. A good understanding of the transmission medium, twisted-pair telephone cable bundles is the basis for this work. Starting from the analysis of measurement data from twisted-pair cable bundles at high frequencies, it presents a MIMO channel model for the FTTdp network, which allows the characteristic effects of high-frequency transmission on copper cable bundles in simulation to be reproduced and the physical layer transmission methods on the copper channels to be analyzed and optimize. The book also presents precoding optimization for more general power constraints and implementation constraints. The maximization of data rate in a transmission system such as G.fast or VDSL is a combinatorial problem, as the rate is a discrete function of the number of modulated bits. Applying convex optimization methods to the problem offers an efficient and effective solution approach that is proven to operate close to the capacity of the FTTdp channel. In addition to higher data rates, low power consumption is another important aspect of the FTTdp network, as it requires many access nodes that are supplied with power from the subscriber side over the twisted- pair copper wires. Discontinuous operation is a method of quickly adding and removing lines from the precoding group. To implement this, the system switches between different link configurations over time at a high frequency. The transmission times of all lines are jointly optimized with respect to the current rate requirements. Discontinuous operation is used to save power, but also makes it possible to further increase the data rates, taking the current subscriber traffic requirements into account. These methods are compared with theoretical upper bounds, using realistic channel models and conditions of a system implementation. The performance analysis provides deeper insights into implementation complexity trade-offs and the resulting gap to channel capacity.
Broadband Access Communication Technologies
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Author : Raj Jain
language : en
Publisher: SPIE-International Society for Optical Engineering
Release Date : 2006
Broadband Access Communication Technologies written by Raj Jain and has been published by SPIE-International Society for Optical Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Computers categories.
Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
Wireless Network Design
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Author : Jeff Kennington
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-11-10
Wireless Network Design written by Jeff Kennington and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-10 with Business & Economics categories.
This book surveys state-of-the-art optimization modeling for design, analysis, and management of wireless networks, such as cellular and wireless local area networks (LANs), and the services they deliver. The past two decades have seen a tremendous growth in the deployment and use of wireless networks. The current-generation wireless systems can provide mobile users with high-speed data services at rates substantially higher than those of the previous generation. As a result, the demand for mobile information services with high reliability, fast response times, and ubiquitous connectivity continues to increase rapidly. The optimization of system performance has become critically important both in terms of practical utility and commercial viability, and presents a rich area for research. In the editors' previous work on traditional wired networks, we have observed that designing low cost, survivable telecommunication networks involves extremely complicated processes. Commercial products available to help with this task typically have been based on simulation and/or proprietary heuristics. As demonstrated in this book, however, mathematical programming deserves a prominent place in the designer's toolkit. Convenient modeling languages and powerful optimization solvers have greatly facilitated the implementation of mathematical programming theory into the practice of commercial network design. These points are equally relevant and applicable in today’s world of wireless network technology and design. But there are new issues as well: many wireless network design decisions, such as routing and facility/element location, must be dealt with in innovative ways that are unique and distinct from wired (fiber optic) networks. The book specifically treats the recent research and the use of modeling languages and network optimization techniques that are playing particularly important and distinctive roles in the wireless domain.
Edn
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Author :
language : en
Publisher:
Release Date : 2003
Edn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Electrical engineering categories.
The Physical Layer Of Communications Systems
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Author : Richard A. Thompson
language : en
Publisher: Artech House Publishers
Release Date : 2006
The Physical Layer Of Communications Systems written by Richard A. Thompson and has been published by Artech House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Technology & Engineering categories.
This text describes the basic technical background necessary to understand how information is conveyed across such systems as the Internet and mobile phones. It is organised in five parts: fundamentals, theory, transmitting signals, transmission media and techniques. Appendices include modelling and simulation and electromagnetic waves.
Popular Science
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Author :
language : en
Publisher:
Release Date : 2004-12
Popular Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12 with categories.
Popular Science gives our readers the information and tools to improve their technology and their world. The core belief that Popular Science and our readers share: The future is going to be better, and science and technology are the driving forces that will help make it better.
Cad Cam Abstracts
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Author :
language : en
Publisher:
Release Date : 1992
Cad Cam Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with CAD/CAM systems categories.
Nbs Special Publication
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Author :
language : en
Publisher:
Release Date : 1968
Nbs Special Publication written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Weights and measures categories.
Publications
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Author : United States. National Bureau of Standards
language : en
Publisher:
Release Date : 1978
Publications written by United States. National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Government publications categories.
Publications Of The National Bureau Of Standards Catalog
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Author : United States. National Bureau of Standards
language : en
Publisher:
Release Date : 1978
Publications Of The National Bureau Of Standards Catalog written by United States. National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.