This accessible, self-contained guide contains everything you need to get up to speed on the theory and implementation of MIMO techniques. In-depth coverage of topics such as RF propagation, space-time coding, spatial multiplexing, OFDM in MIMO for broadband applications, the theoretical MIMO capacity formula and channel estimation will give you a deep understanding of how the results are obtained, while detailed descriptions of how MIMO is implemented in commercial WiFi and LTE networks will help you apply the theory to practical wireless systems. Key concepts in matrix mathematics and information theory are introduced and developed as you need them, and key results are derived step-by-step, with no details omitted. Including numerous worked examples, and end-of-chapter exercises to reinforce and solidify your understanding, this is the perfect introduction to MIMO for anyone new to the field.
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.
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.
Blut, Treibstoff, Lebensprinzip - in seinem furiosen Buch erzählt Bestsellerautor James Gleick, wie die Information zum Kernstück unserer heutigen Zivilisation wurde. Beginnend bei den Wörtern, den "sprechenden" Trommeln in Afrika, über das Morsealphabet und bis hin zur Internetrevolution beleuchtet er, wie die Übermittlung von Informationen die Gesellschaften prägten und veränderten. Gleick erläutert die Theorien, die sich mit dem Codieren und Decodieren, der Übermittlung von Inhalten und dem Verbreiten der Myriaden von Botschaften beschäftigen. Er stellt die bekannten und unbekannten Pioniere der Informationsgesellschaft vor: Claude Shannon, Norbert Wiener, Ada Byron, Alan Turing und andere. Er bietet dem Leser neue Einblicke in die Mechanismen des Informationsaustausches. So lernt dieser etwa die sich selbst replizierende Meme kennen, die "DNA" der Informationen. Sein Buch ermöglicht ein neues Verständnis von Musik, Quantenmechanik - und eine gänzlich neue Sicht auf die faszinierende Welt der Informationen.
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.
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.
Viele erfolgreiche Unternehmen zeichnen sich durch große Innovationsfreudigkeit und Kreativität aus. Doch wie gelingt ihnen das? Wie entstehen überhaupt innovative Ideen? Wie löst man sich von alten Mustern, um wirklich Neues zu entwickeln? Gamestorming hat Antworten auf diese Fragen und beweist, dass man nicht hexen muss, um kreativ zu sein - sondern spielen! Die Autoren haben 80 Spiele zusammengetragen, mit denen Sie und Ihr Team es schaffen, Denkblockaden zu überwinden, besser zu kommunizieren und zu neuen Erkenntnissen zu gelangen. Aus dem Inhalt: Konflikte überwinden und das Engagement der Mitarbeiter steigern Zusammenarbeit und Kommunikation optimieren Das Verständnis von Kunden- und User-Experience verbessern Bessere Ideen entwickeln - und das schneller als je zuvor Meetings verkürzen und produktiver gestalten Komplexe Systeme und Dynamiken erkunden Die Wurzel eines Problems erkennen und einen Weg zur Lösung finden
Demystifying the technology of telecommunications: a guided tour for the non-engineer This book provides an easy-to-understand introduction to the complex technical world of telecommunications. From bandwidth to data transfer protocol to PSTN, ISDN, PCS, or ATM-widely respected telecommunications expert and author Roger L. Freeman explains it all. He walks the reader through a vast array of current topics, providing an encyclopedic overview of all branches of telecommunications-telephony, data communications, enterprise networks, television transmission, wireless systems, and cellular/personal communication services (PCS). Written for the layperson as well as newcomers to the field, this primer: * Assumes no mathematical or technical know-how on the part of the reader * Introduces all topics from the ground up * Clearly defines all terms, illustrating them with tangible examples * Features review questions at the end of each chapter, designed to test understanding and reinforce comprehension * Includes one hundred figures to highlight the text * Reviews, in three appendices, the most rudimentary of mathematical and electrical concepts, as well as decibels and their applications Fundamentals of Telecommunications allows sales, marketing, and management personnel in the telecommunications industry to better understand the various technical and operational issues that come up in the course of their work. It also gives investors and financiers a basic reference to draw upon when dealing with clients in this rapidly evolving market.
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.
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.
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.
With the accelerating growth in the use of computers and PCs in the workplace, the practical aspects of designing and operating data communications systems have become increasingly more complex. Practical Data Communications provides the needed background and fills in the gaps for the many who must tackle this vital technology with little basic training. It does so in clear and precise terms and with a hands-on approach to network design and management aimed at ensuring the optimal implementation of data communications. While laying down the theoretical principles of electronic data communications, the book assumes no particular technical knowledge other than basic electricity and elementary algebra. It is a tutorial work that readily initiates the reader at the level of bits, bit sequences, and bauds in its introduction to the basic concepts of data signals and their electrical nature. This book serves the practitioner. Its wide discussion of data network enhancements and design is built upon a thorough introduction of generic and specific data networks, focusing at length on transmission limitations, protocols and how they work, and questions of standards and related topics. The book covers local area networks (LANs) based on IEEE and ANSI standards, and wide area networks (WANs) built around TCP/IP, SNA, and OSI related protocols. It also covers VSAT (very small aperture terminal) satellite networks for data connectivity, and frame relay and SMDS for the interconnection of LANs over long distances. The reader will share the benefits of the author's extensive experience, detailing actual implementation methods for enterprise networks, considering particular corporate and government requirements, describing wiring concepts and specific models, and providing comparisons between different systems in terms of performance and complexity. Throughout, data communication is incorporated into the bigger picture of telecommunications, including the public switched digital network (PSDN), questions of high-capacity transmission media such as fiber optics, wire pair, and microwave and satellite communications. There is emphasis on the trend toward the integration of data, voice, and image into a single telecommunication system—popularly termed multimedia communications. Practical Data Communications is an indispensable guide for the engineering student, computer scientist, data network technician, and MIS/telecommunications manager. From ASCII to asynchronous transfer mode (ATM) and from data modems to satellite links, this book provides both an overview of data communications and a comprehensive guide to its practical aspects. It demystifies buzz words; cuts through the jungle of hardware, protocols, and standards; and lays down a solid framework for understanding the elements that facilitate interconnectivity. This timely and much needed resource can be used in a number of ways: As a tutorial that fleshes out the basics and builds an understanding of data communications from the ground up As a basic reference to precise terminology, applications, and practices within the field As an overview of current technologies and future trends in the wider context of telecommunications As a user's guide to the implementation of the technology in a way that will promote effective and optimal use of data communications over networks Practical Data Communications is an indispensable guide for telecommunications managers, technicians, network managers, computer scientists and programmers, and anyone involved with the operation and design of data communications systems. As a senior-level textbook, it helps students understand the underlying principles of networks and to appreciate exactly where this technology is leading us.
A biomedical engineering perspective on the theory, methods, and applications of signal processing This book provides a unique framework for understanding signal processing of biomedical signals and what it tells us about signal sources and their behavior in response to perturbation. Using a modeling–based approach, the author shows how to perform signal processing by developing and manipulating a model of the signal source, providing a logical, coherent basis for recognizing signal types and for tackling the special challenges posed by biomedical signals–including the effects of noise on the signal, changes in basic properties, or the fact that these signals contain large stochastic components and may even be fractal or chaotic. Each chapter begins with a detailed biomedical example, illustrating the methods under discussion and highlighting the interconnection between the theoretical concepts and applications. The author has enlisted experts from numerous subspecialties in biomedical engineering to help develop these examples and has made most examples available as Matlab or Simulink files via anonymous ftp. Without the need for a background in electrical engineering, readers will become acquainted with proven techniques for analyzing biomedical signals and learn how to choose the appropriate method for a given application. An Instructor′s Manual presenting detailed solutions to all the problems in the book is available from the author.
A guide to the theory and application of methods of projections. With the rise of powerful personal computers, methods of vector space projections have moved rapidly from the realm of theory into widespread use. This book reflects the growing interest in the application of these methods to problem solving in science and engineering. It brings together material previously scattered in disparate papers, book chapters, and articles, and offers a systematic treatment of vector space projections. Written by two leading authorities in the field, this self-contained volume provides a tutorial on projection methods and how to apply them in science and engineering. It details effective problem-solving strategies, and explores key applications in communication and signal processing, neural networks and pattern recognition, and optics and image processing. This book: * Reviews the fundamentals of vector space theory * Covers principles and applications of vector space projections in general, and projections onto convex sets in particular * Provides real-world examples solvable on PCs and modest workstations * Features more than 100 illustrations * Includes end-of-chapter exercises and references. This extremely useful reference for practicing engineers, scientists, and educators can also be used for graduate-level study in science, mathematics, and engineering. Portions of the book have been used as material in short courses on applications of vector space projections.
The field of telecommunications is a rapidly growing one, with the bulk of the industry predicated on the telephone or PSTN (Public Switched Telecommunica-tion Network). The primary goal of Telecommunication System Engineering, Third Edition is to describe the development of the PSTN, the rationale behind its structure, and how dramatically it is evolving. Telecommunication System Engineering, Third Edition presents a technical overview of telecommunication networks from a system viewpoint, with the aim of showing how one discipline can interact with another to reach a desired goal. As in previous editions, the author covers all the concepts necessary for a complete understanding of the design of practical telecommunication networks, whether they are meant to carry voice, data, facsimile, telemetry, video, or any combination of these. Both local and long distance (toll) switching and transmission are covered, all in great detail, and two entire chapters are devoted to the subject of signaling. For the Third Edition, the author has amended and reorganized his material to include the latest technology in the industry. For example, Chapter 6 has added material on new traffic routing techniques in the national network, and network design and configurations from a Bellcore perspective, while Chapter 7 features new material on line-of-sight microwave systems and satellite communications. Chapter 8 covers the latest developments in digital loop carrier, SONET and SDH, and delta modulation, and Chapter 11 offers new information on TCP/IP and related protocols, as well as IBM system network architecture (SNA). Two entire chapters have been added on emerging broadband-data technologies and the asynchronous transfer mode (ATM). In addition, chapters have also been added on cellular/mobile radio and PCN/PCS and network management techniques. As in previous editions, the author approaches the information covered in a systematic and interactive way. Each chapter builds logically on the previous one, and the various disciplines are tied together with an eye toward combining them in the design of efficient and cost-effective telecommunication networks. Telecommunication System Engineering, Third Edition remains an ideal reference source for telecommunications managers, technicians, and other practicing professionals as well as advanced students in telecommunications. Many changes have taken place in the field of telecommunications since the Second Edition of the popular and successful Telecommunication System Engineering was published in 1989. The Third Edition marks a major and groundbreaking revision of what is already a widely used and highly acclaimed text. As in previous editions, the author presents intertwining disciplines in a systematic and interactive way. To reflect recent developments in the field, the author has added chapters on such vital topics as cellular radio, asynchronous transfer mode, broadband technologies, and network management. Contents of the Third Edition include: * Some Basics in Conventional Telephony * Local Networks * Conventional Analog Switching in Telephony * Signaling for Analog Telephone Networks * Introduction to Transmission for Telephony * Long-Distance Networks * The Design of Long-Distance Links * Digital Transmission Systems * Digital Switching and Networks * Introduction to Data Communications * Data Networks and Their Operation * Local Area Networks * Integrated Services Digital Networks * Emerging Broadband Data Technologies * The Asynchronous Transfer Mode and Broadband ISDN * CCITT Signaling System No. 7 * Cellular/Mobile Radio and PCN/PCS * Network Management