Wahrscheinlichkeit

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Author: Alʹbert Nikolaevich Shiri︠a︡ev,Hans Jürgen Engelbert

Publisher: N.A

ISBN: N.A

Category: Probabilities

Page: 592

View: 2426

Introduction to MIMO Communications

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Author: Jerry R. Hampton

Publisher: Cambridge University Press

ISBN: 1107042836

Category: Technology & Engineering

Page: 300

View: 2976

This accessible guide contains everything you need to get up to speed on the theory and implementation of MIMO techniques.

Signaling in Telecommunication Networks

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Author: John G. van Bosse,Fabrizio U. Devetak

Publisher: John Wiley & Sons

ISBN: 0470048131

Category: Technology & Engineering

Page: 704

View: 8907

Guidance to help you grasp even the most complex network structures and signaling protocols The Second Edition of Signaling in Telecommunication Networks has been thoroughly updated, offering new chapters and sections that cover the most recent developments in signaling systems and procedures. This acclaimed book covers subscriber and network signaling in both fixed and mobile networks. Coverage begins with an introduction to circuit-switched telephone networks, including an examination of trunks, exchanges, access systems, transmission systems, and other basic components. Next, the authors introduce signaling concepts, beginning with older Channel Associated Signaling (CAS) systems and progressing to today's Common Channel Signaling (CCS) systems. The book then examines packet networks and their use in transmitting voice (VoIP), TCP/IP protocols, VoIP signaling protocols, and ATM protocols. Throughout the book, the authors emphasize functionality, particularly the roles of individual protocols and how they fit in network architectures, helping readers grasp even the most complex network structures and signaling protocols. Highlights of the Second Edition include: Coverage of the latest developments and topics, including new chapters on access networks, intelligent network application part, signaling for voice communication in packet networks, and ATM signaling Drawings and tables that help readers understand and visualize complex systems Comprehensive, updated references for further study Examples to help readers make the bridge from theory to application With the continued growth and expansion of the telecommunications industry, the Second Edition is essential reading for telecommunications students as well as anyone involved in this dynamic industry needing a solid understanding of the different signaling systems and how they work. Moreover, the book helps readers wade through the voluminous and complex technical standards by providing the essential structure, terminology, and functionality needed to understand them.

RFID-Handbuch

Grundlagen und praktische Anwendungen induktiver Funkanlagen, Transponder und kontaktloser Chipkarten

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Author: Klaus Finkenzeller

Publisher: N.A

ISBN: 9783446403987

Category:

Page: 490

View: 2312

Advances in Multiuser Detection

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Author: Michael L. Honig

Publisher: John Wiley & Sons

ISBN: 9780470473801

Category: Technology & Engineering

Page: 512

View: 387

A Timely Exploration of Multiuser Detection in Wireless Networks During the past decade, the design and development of current and emerging wireless systems have motivated many important advances in multiuser detection. This book fills an important need by providing a comprehensive overview of crucial recent developments that have occurred in this active research area. Each chapter is contributed by noted experts and is meant to serve as a self-contained treatment of the topic. Coverage includes: Linear and decision feedback methods Iterative multiuser detection and decoding Multiuser detection in the presence of channel impairments Performance analysis with random signatures and channels Joint detection methods for MIMO channels Interference avoidance methods at the transmitter Transmitter precoding methods for the MIMO downlink This book is an ideal entry point for exploring ongoing research in multiuser detection and for learning about the field's existing unsolved problems and issues. It is a valuable resource for researchers, engineers, and graduate students who are involved in the area of digital communications.

Wireless Information Networks

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Author: Kaveh Pahlavan,Allen H. Levesque

Publisher: John Wiley & Sons

ISBN: 0471738638

Category: Technology & Engineering

Page: 760

View: 7568

Towards location aware mobile ad hoc sensors A Systems Engineering Approach to Wireless Information Networks The Second Edition of this internationally respected textbook brings readers fully up to date with the myriad of developments in wireless communications. When first published in 1995, wireless communications was synonymous with cellular telephones. Now wireless information networks are the most important technology in all branches of telecommunications. Readers can learn about the latest applications in such areas as ad hoc sensor networks, home networking, and wireless positioning. Wireless Information Networks takes a systems engineering approach: technical topics are presented in the context of how they fit into the ongoing development of new systems and services, as well as the recent developments in national and international spectrum allocations and standards. The authors have organized the myriad of current and emerging wireless technologies into logical categories: * Introduction to Wireless Networks presents an up-to-the-moment discussion of the evolution of the cellular industry from analog cellular technology to 2G, 3G, and 4G, as well as the emergence of WLAN and WPAN as broadband ad hoc networks * Characteristics of Radio Propagation includes new coverage of channel modeling for space-time, MIMO, and UWB communications and wireless geolocation networks * Modem Design offers new descriptions of space-time coding, MIMO antenna systems, UWB communications, and multi-user detection and interference cancellation techniques used in CDMA networks * Network Access and System Aspects incorporates new chapters on UWB systems and RF geolocations, with a thorough revision of wireless access techniques and wireless systems and standards Exercises that focus on real-world problems are provided at the end of each chapter. The mix of assignments, which includes computer projects and questionnaires in addition to traditional problem sets, helps readers focus on key issues and develop the skills they need to solve actual engineering problems. Extensive references are provided for those readers who would like to explore particular topics in greater depth. With its emphasis on knowledge-building to solve problems, this is an excellent graduate-level textbook. Like the previous edition, this latest edition will also be a standard reference for the telecommunications industry.

Ultra-Wideband Communications Systems

Multiband OFDM Approach

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Author: W. Pam Siriwongpairat,K. J. Ray Liu

Publisher: John Wiley & Sons

ISBN: 0470179759

Category: Technology & Engineering

Page: 240

View: 348

The only book that provides full coverage of UWB multiband OFDM technology Ultra-wideband (UWB) has emerged as a technology that offers great promise to satisfy the growing demand for low-cost, high-speed digital networks. The enormous bandwidth available, the potential for high data rates, and the promise for small size and low processing power with reduced implementation cost all present a unique opportunity for UWB to become a widely adopted radio solution for future wireless home networking technology. Ultra-Wideband Communications Systems is the first book to provide comprehensive coverage of the fundamental and advanced issues related to UWB technology, with a particular focus on multiband orthogonal frequency division multiplexing (multiband OFDM). The multiband OFDM approach was a leading method in the IEEE 802.15.3astandard and has recently been standardized by ECMA International. The book also explores several major advanced state-of-the-art technologies to enhance the performance of the standardized multiband OFDM approach. Additional coverage includes: * Characteristics of UWB channels * An overview of UWB single-band and multiband OFDM approaches * MIMO multiband OFDM * Performance characterization * Performance under practical considerations * Differential multiband OFDM * Power-controlled channel allocation * Cooperative UWB multiband OFDM Complete with pointers for future research opportunities to enhance the performance of UWB multiband OFDM technology over current and future wireless networks, this is an indispensable resource for graduate students, engineers, and academic and industrial researchers involved with UWB.

Architekturen der digitalen Signalverarbeitung

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Author: Peter Pirsch

Publisher: Springer-Verlag

ISBN: 3322967239

Category: Technology & Engineering

Page: 368

View: 361

Mit den Fortschritten in der Mikroelektronik wächst auch der Bedarf an VLSI-Realisierungen von digitalen Signalverarbeitungseinheiten. Die zunehmende Komplexität der Signalverarbeitungsverfahren führt insbesondere bei Signalen mit hoher Quellenrate auf Anforderungen, die nur durch spezielle Schaltungsstrukturen erfüllt werden können. Dieses Buch behandelt Schaltungstechniken und Architekturen zur Erzielung hoher Durchsatzraten von Algorithmen der Signalverarbeitung. Neben alternativen Schaltungstechniken zur Realisierung der Basisoperationen, Addition, Multiplikation und Division werden CORDIC-Architekturen zur Implementierung transzendenter Funktionen vorgestellt. Zur Konzeption von Systemen mit Parallelverarbeitung und Pipelining wird ein allgemeines Verfahren zur Abbildung von Signalverarbeitungsalgorithmen auf anwendungsspezifischen Architekturen erläutert. Hierzu werden beispielhaft spezielle Architekturen für Filter, Matrixoperationen und die diskrete Fouriertransformation erörtert. Architekturen programmierbarer digitaler Signalprozessoren sowie beispielhafte zugehörige Implementierungen sind eingeschlossen. Das Buch soll sowohl Studenten und Ingenieure der Elektrotechnik als auch der technischen Informatik mit Architekturkonzepten der digitalen Signalverarbeitung vertraut machen.

Zeitdiskrete Signalverarbeitung

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Author: Alan V. Oppenheim,John R. Buck,Ronald W. Schafer

Publisher: N.A

ISBN: 9783827370778

Category: Signal processing

Page: 1031

View: 7164

Neuübersetzung der aktuelle US-Ausgabe.

Fundamentals of telecommunication networks

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Author: Tarek N. Saadawi,Mostafa Hamed Ammar,Ahmed El Hakeem

Publisher: Wiley-Interscience

ISBN: N.A

Category: Computers

Page: 485

View: 6589

Comprehensive, authoritative, practical—an essential guide to the design and operation of telecommunication networks The past decade has seen what can only be described as an evolutionary leap in the field of telecommunication networks. The penetration of data networks, the emergence of the integrated services digital network (ISDN) and Broadband ISDN, and the development of fast packet switching, are just some of the dramatic developments that have emerged over the past few years alone. This book was designed to function as a practical introduction to the core concepts, techniques, and methodologies underlying each of these developments and common to the design and operation of all forms of existing telecommunications networks. Key topics covered include: The physical layer of the OSI reference model Performance evaluation techniques Queueing theory fundamentals and their applications to networks Layers 2 and 3 of the OSI reference model — including an in-depth discussion of protocol standards,routing algorithms, and flow and congestion control techniques LAN theory, standards, and technology and multiple access communications techniques Network interconnection and the transport layer ISDN, Broadband ISDN, and fast packet switching theory and architecture Fundamentals of Telecommunication Networks is an invaluable resource for systems developers, engineers, and managers responsible for dealing with telecommunications networks and systems. An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.

Vorlesungen Über Gastheorie

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Author: Ludwig Boltzmann

Publisher: Wentworth Press

ISBN: 9780270046120

Category:

Page: 212

View: 6825

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Digital telephony

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Author: John Bellamy

Publisher: Wiley-Interscience

ISBN: N.A

Category: Computers

Page: 643

View: 9680

From the reviews of the Second Edition . "The book stresses how systems operate and the rationale behind their design, rather than presenting rigorous analytical formulations . [It provides] the practicality and breadth essential to mastering the concepts of modern communications systems." -Telecommunication Journal In this expanded new edition of his bestselling book, telephony expert John Bellamy continues to provide telecommunications engineers with practical, comprehensive coverage of all aspects of digital telephone systems, while addressing the rapid changes the field has seen in recent years. Bellamy discusses the near-complete conversion to digital technology in telephone networks worldwide, examines both existing and emerging technologies, and explores the intricacies of carrying voice over data networks as well as the use of telephone networks for carrying data for Internet access. He emphasizes system design, implementation, and application, but also correlates the practice to communications theory. With 30 percent new material, Digital Telephony, Third Edition features: * Clear explanations on how to overcome problems associated with the replacement of old analog technology with new digital technology * A new chapter on digital mobile telephone technology * New material on how, data networks support voice communication * A new chapter on digital subscriber access technologies * More than 300 graphs illustrating concepts * Examples from the U.S. network as well as ITU public telephone networks *An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editorial department.

Einführung in die Kryptographie

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Author: Johannes Buchmann

Publisher: Springer-Verlag

ISBN: 3642980600

Category: Computers

Page: 234

View: 1991

Dieses Kryptographiebuch behandelt die grundlegenden Techniken der modernen Kryptographie. Es eignet sich hervorragend für Studierende der Mathematik und der Informatik ab dem dritten Semester. Das Buch setzt nur minimale Kenntnisse voraus und vermittelt auf elementare Weise die notwendigen mathematischen Kenntnisse, insbesondere die aus der Zahlentheorie. Die Leser werden durch diese Einführung in die Lage versetzt, fortgeschrittene Literatur zur Kryptographie zu verstehen.

Naive Mengenlehre

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Author: Paul R. Halmos

Publisher: Vandenhoeck & Ruprecht

ISBN: 9783525405277

Category: Arithmetic

Page: 132

View: 5503

Regelung elektrischer Antriebe

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Author: Werner Leonhard

Publisher: Springer-Verlag

ISBN: 3642573282

Category: Technology & Engineering

Page: 462

View: 2620

Leistungselektronisch gespeiste und mikroelektronisch geregelte elektrische Antriebe sind dynamisch hochwertige und universell einsetzbare elektromechanische Energiewandler, die heute in vielfältigen Ausführungsformen in weiten Bereichen von Drehmoment, Drehzahl und Leistung zur Verfügung stehen. Von besonderer Bedeutung sind kommutatorlose Drehstrom-Regelantriebe, die erst mit vektoriellen Verfahren und einer digital verwirklichten Regelungstechnik möglich wurden. Das Buch enthält eine zusammenfassende theoretische Darstellung elektrischer Regelantriebe einschließlich der leistungselektronischen Umrichter, von klassischen Gleichstromantrieben bis zu digital geregelten Drehstromantrieben. Die beschriebenen Verfahren werden durch experimentelle Ergebnisse belegt; Anwendungen sind anhand von Beispielen diskutiert.