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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications > Telephone technology > General
The application of artificial intelligence technology to 5G wireless communications is now appropriate to address the design of optimized physical layers, complicated decision-making, network management, and resource optimization tasks within networks. In exploring 5G wireless technologies and communication systems, artificial intelligence is a powerful tool and a research topic with numerous potential fields of application that require further study. Applications of Artificial Intelligence in Wireless Communication Systems explores the applications of artificial intelligence for the optimization of wireless communication systems, including channel models, channel state estimation, beamforming, codebook design, signal processing, and more. Covering key topics such as neural networks, deep learning, and wireless systems, this reference work is ideal for computer scientists, industry professionals, researchers, academicians, scholars, practitioners, instructors, and students.
To overcome the constraints of 5G for supporting new challenges, 6G wireless systems must be developed with new and attractive features. These systems are expected to increase performance and maximize quality of service several folds more than 5G along with other exciting features. However, 6G is still in its infancy and must be explored. The Handbook of Research on Design, Deployment, Automation, and Testing Strategies for 6G Mobile Core Network discusses the technological feats used in the new 6G wireless systems. It discusses the design, automation, and uses for industry as well as testing strategies. Covering topics such as 6G architecture, smart healthcare, and wireless communication, this major reference work is an excellent resource for computer scientists, engineers, students and professors in higher education, researchers, and academicians.
Countries at different points of development are affected differently by shifts in the ability to access information. These changes require the action of governments to cope in order to preserve accountability and information access. The progression of these changes could vary between countries based on the level of development. Digital Transformation and Its Role in Progressing the Relationship Between States and Their Citizens is a cutting-edge research publication that examines the relationship between government and citizens especially regarding accountability, communication, and access to information. Featuring a wide range of topics such as electoral reform, free speech, and citizen empowerment, this book is ideal for policymakers, researchers, legal professionals, activists, government employees, and academicians.
A study of the architectures of the systems that provide telephone service, including a look at architectures for future systems. It describes the hardware and software of five different systems in detail, offering communications professionals the information they need to understand switching systems in historical context and in relation to regulatory frameworks. The book also examines how factors such as customer services and modern computer applications have affected switching systems, and it provides background discussions on relevant theory and boundary conditions - such as transmission systems, telephone operation, and the human element.
This book analyzes the wireless revolution: from applications to technology, and from economics to system engineering.
As the IoT market is booming, several issues are delaying the full realization of the technology. IoT devices, in cybersecurity terms, greatly increase security risk. This means that any scientific work that offers cybersecurity strategies will excite security experts who will be glad to expand their knowledge base on IoT cybersecurity. As a result of the booming of the IoT market, business competitors are jockeying for a piece of the market. This means that solutions from researchers that address compatibility issues will be greatly welcomed by IoT technology developers. Connectivity providers are likely to embrace solutions to challenges of bandwidth since a growing IoT market must be followed up by bandwidth-intensive IoT applications which tend to jostle for space on the current client-server model. Overpromising followed by underdelivering, has been the current approach by many innovators and the mismatch results in losses in production, orphaned technologies accompanied by frequent system failures. Solutions that address IoT performance issues are likely to excite many start-ups. Solutions to challenges of fragmentation presented by thousands of devices from different manufacturers operating on proprietary ecosystems are likely to be warmly embraced by many IoT brands developers. As such, a publication that specifically addresses the challenges faced in the rolling out of IoT technologies is sorely needed.
Quality of Telephone-Based Spoken Dialogue Systems is a systematic overview of assessment, evaluation, and prediction methods for the quality of services such as travel and touristic information, phone-directory and messaging, or telephone-banking services. A new taxonomy of quality-of-service is presented which serves as a tool for classifying assessment and evaluation methods, for planning and interpreting evaluation experiments, and for estimating quality. A broad overview of parameters and evaluation methods is given, both on a system-component level and for a fully integrated system. Three experimental investigations illustrate the relationships between system characteristics and perceived quality. The resulting information is needed in all phases of system specification, design, implementation, and operation. Although Quality of Telephone-Based Spoken Dialogue Systems is written from the perspective of an engineer in telecommunications, it is an invaluable source of information for professionals in signal processing, communication acoustics, computational linguistics, speech and language sciences, human factor design and ergonomics
Just as the automobile radically changed people's lives at the beginning of the 20th century, so too has the revolution in online services (including blogging, podcasting, videogaming, shopping, and social networking) and cell-phone use changed our lives at the turn of the 21st century. In addition, many other services, activities, and devices—including the Palm Pilot, the BlackBerry, the iPod, digital cameras, and cell cameras—have been made possible by the combination of these two technologies. Whereas the automobile allowed people for the first time to work in cities and live comfortably in the suburbs, extending the long commute beyond the limits previously circumscribed by public transportation, the Internet and cell phone allow us to interact with others from around the world—or a few hundred miles—from where we work or live, giving rise to the telecommuting phenomenon and allowing us to stay in touch with friends and families in the new virtual environment. As Hanson demonstrates in her new book, these technologies enable us to work and play 24/7, anytime, anywhere. What does this mean for us as individuals and for society as a whole? What are the social implications of this technological revolution that we have witnessed in the short span of about 20 years? Do people of different generations use these technologies in the same ways, or do they adopt them to support their communication habits formed at different times of their lives? How does the illusion of control provided by these technologies affect the way we think about what is meaningful in our lives? Hanson examines the wide-ranging impact of this change. How do individuals posting their viewpoints on the Internet affect democracy? Is it possible to ever completely prevent identity theft over the Internet? How permanent is information stored on the Internet or on a hard drive? Do cell phones change the way people think about privacy or the way they communicate with others? Does email? Do videogames teach new social principles? Do cell phones and the Internet change traditional communication behaviors and attitudes? Hanson discusses these crucial issues and explores to what extent individuals do have control, and she assesses how social and governmental services are responding to (or running from) the problems posed by these new technologies.
Mobile communications are about to enter the third stage in their development, widely known as 3G. This will bring always-on Internet access to mobile devices. This book investigates the history of mobile communications and explores the technological background to 3G in a user-friendly manner. It examines the licensing process throughout the world, and draws conclusions about the prospects for 3G through a comprehensive analysis of the issues that have been raised so far.
What is "digital telephony"? To the authors, the term digital telephony denotes the technology used to provide a completely digital telecommunication system from end-to-end. This implies the use of digital technology from one end instru ment through transmission facilities and switching centers to another end instru ment. Digital telephony has become possible only because of the recent and on going surge of semiconductor developments, allowing microminiaturization and high reliability along with reduced costs. This book deals with both the future and the present. Thus, the first chapter is entitled, "A Network in Transition." As baselines, Chapters 2 and 11 provide the reader with the present status of teler-hone technology in terms of voice digiti zation as well as switching principles. The book is an outgrowth of the authors' consulting and teaching experience in the field since the early 1980s. The book has been written to provide both the engineering student and the practicing engineer a working knowledge of the prin ciples of present and future telecommunication systems based upon the use of the public switched network. Problems or discussion questions have been included at the ends of the chapters to facilitate the book's use as a senior-level or first year graduate-level course text. Numerous clients and associates of the authors as well as hundreds of others have provided useful information and examples for the text, and the authors wish to thank all those who have so contributed either directly or indirectly."
This book applies the approach of technology assessment to the telephone. The author's analysis forecasts the effect of the telephone on society and compares it with the reality. This book not only examines the social consequences of the telephone, but provides a model for future efficient assessments of new technologies. It documents a largely unknown piece of the history of American technology and anlayzes the requirements for success in technological forecasting.
This book describes the physical layer of UMTS (Universal Mobile Telecommunication System) which is one of the five members of the IMT-2000 family of standards. It compiles in a clear fashion the main technical features of the physical layer standard together with a description of the basics of digital communications and spread spectrum technology on which UMTS relies. In addition the test cases specified in the standard are described together with their implications on any practical front-end design. The reader will benefit from the standard description which frees him from studying lots of standardization documents. Additional explanations of the standard and especially the test cases will help to better understand the effects on any front-end system design. Many references are provided for readers interested in in-depth treatments of certain topics.
This book responds to the growing need to secure critical infrastructure by creating a starting place for new researchers in secure telecommunications networks. It is the first book to discuss securing current and next generation telecommunications networks by the security community. The book not only discusses emerging threats and systems vulnerability, but also presents the open questions posed by network evolution and defense mechanisms. It is designed for professionals and researchers in telecommunications. The book is also recommended as a secondary text for graduate-level students in computer science and electrical engineering.
karmano hy api boddhavyam boddhavyam ca vikarmanah akarmanas ca boddhavyam gahana karmano gatih The intricacies of action are very hard to understand. Therefore one should know properly what action is, what forbidden action is, and what inaction is. The Bhagvad Gita (4.17) This book is the outcome of the research contribution of Hanane Fathi towards her Ph.D. studies jointly with Shyam S. Chakraborty and Ramjee Prasad as - pervisors. To the best of the authors' knowledge, this is a ?rst book on voice over Internet protocol (VoIP) covering such a broad perspective as illustrated in Figure P.1. This book is a new, forward-looking resource that explores the present and future trends of VoIP in the wireless heterogeneous networks. This book also provides the discovery path that these network infrastructures are following from a perspective of synergies with the present systems and how they will pave the way for future systems. This book is intended for everyone in the ?eld of wireless information and multimedia communications. It provides different levels of material suitable for managers, researchers, network providers, and graduate students. We hope that all readers will experience the bene?ts and power of this knowledge. We have tried our best to make each chapter comprehensive and we cannot claim that this book is without errors. Any remarks to improve the text and correct the errors would be highly appreciated.
Telecommunication Network Intelligence is a state-of-the-art book that deals with issues related to the development, distribution, and management of intelligent capabilities and services in telecommunication networks. The book contains recent results of research and development in the following areas, among others: Platforms for Advanced Services; Active and Programmable Networks; Network Security, Intelligence, and Monitoring; Quality-of-Service Management; Mobile Agents; Dynamic Switching and Network Control; Services in Wireless Networks; Infrastructure for Flexible Services. Telecommunication Network Intelligence comprises the proceedings of SmartNet 2000, the Sixth International Conference on Intelligence in Networks, which was sponsored by the International Federation for Information Processing (IFIP) and held at the Vienna University of Technology, Vienna, Austria, in September 2000.
The area of analog integrated circuits is facing some serious challenges due to the ongoing trends towards low supply voltages, low power consumption and high-frequency operation. The situation is becoming even more complicated by the fact that many transfer functions have to be tunable or controllable. A promising approach to facing these challenges is given by the class of dynamic translinear circuits, which are, as a consequence, receiving increasing interest. Several different names are used in literature: log-domain, exponential state-space, current-mode companding, instantaneous companding, tanh-domain, sinh-domain, polynomial state-space, square-root domain and translinear filters. In fact, all these groups are (overlapping) subclasses of the overall class of dynamic translinear circuits. Research Perspectives on Dynamic Translinear and Log-Domain Circuits is a compilation of research findings in this growing field. It comprises ten contributions, coming from recognized `dynamic-translinear' researchers in Europe and North America. Research Perspectives on Dynamic Translinear and Log-Domain Circuits is an edited volume of original research.
The telephone has played a central role in shaping the way we communicate. From the telegraph in the 19th century through the mobile phone of today, the technology of the telephone has drastically altered how people work, how they keep in touch with friends and loved ones, and how they organize their daily lives. It has also been crucial in enabling governments and large organizations to extend their influence, both within and across nations, and has required wide-ranging changes in the law and in business practices. This volume in the Greenwood Technographies series examines the life story of the telephone and shows how this ubiquitous technology so completely impacts our lives. The Telephone: A Life Story of a Technology discusses significant developments in the technological and social lives of people during the history of the telephone: The telegraph (1830s-1870s) and its impact on the expansion of empires BLThe invention of the telephone, and the early designs and priority disputes between such inventors as Alexander Graham Bell and Elisha Gray The spread of the telephone, and the emergence of "Universal Service" BLThe revolutionary impact of the mobile phone The volume includes a glossary of terms, a timeline, and a bibliography of the most useful resources for further research.
Because this is a book for engineers the practical coverage is
reinforced by use of the latest interanational standards, in
particular BICSI standards (USA and international) and EU
requirements. This will make the book ideal for the large number of
industry-based training courses. Coverage has also been matched to
the requirements of the revised City & Guilds 3466-04 course.
This book shows how networking research and quality engineering can be combined to successfully manage the transmission quality when speech and video telephony is delivered in heterogeneous wireless networks. Nomadic use of services requires intelligent management of ongoing transmission, and to make the best of available resources many fundamental trade-offs must be considered. Network coverage versus throughput and reliability of a connection is one key aspect, efficiency versus robustness of signal compression is another. However, to successfully manage services, user-perceived Quality of Experience (QoE) in heterogeneous networks must be known, and the perception of quality changes must be understood. These issues are addressed in this book, in particular focusing on the perception of quality changes due to switching between diverse networks, speech and video codecs, and encoding bit rates during active calls.
Session Initiation Protocol (SIP), standardized by the Internet Engineering Task Force (IETF), has emulated the simplicity of the protocol architecture of hypertext transfer protocol (HTTP) and is being popularized for VoIP over the Internet because of the ease with which it can be meshed with web services. However, it is difficult to know exactly how many requests for comments (RFCs) have been published over the last two decades in regards to SIP or how those RFCs are interrelated. Handbook on Session Initiation Protocol: Networked Multimedia Communications for IP Telephony solves that problem. It is the first book to put together all SIP-related RFCs, with their mandatory and optional texts, in a chronological and systematic way so that it can be used as a single super-SIP RFC with an almost one-to-one integrity from beginning to end, allowing you to see the big picture of SIP for the basic SIP functionalities. It is a book that network designers, software developers, product manufacturers, implementers, interoperability testers, professionals, professors, and researchers will find to be very useful. The text of each RFC from the IETF has been reviewed by all members of a given working group made up of world-renowned experts, and a rough consensus made on which parts of the drafts need to be mandatory and optional, including whether an RFC needs to be Standards Track, Informational, or Experimental. Texts, ABNF syntaxes, figures, tables, and references are included in their original form. All RFCs, along with their authors, are provided as references. The book is organized into twenty chapters based on the major functionalities, features, and capabilities of SIP.
Designed for a single-semester course, this concise and approachable text covers all of the essential concepts needed to understand modern communications systems. Balancing theory with practical implementation, it presents key ideas as a chain of functions for a transmitter and receiver, covering topics such as amplification, up- and down-conversion, modulation, dispersive channel compensation, error-correcting codes, acquisition, multiple-antenna and multiple-input multiple-output antenna techniques, and higher level communications functions. Analog modulations are also presented, and all of the basic and advanced mathematics, statistics, and Fourier theory needed to understand the concepts covered is included. Supported online with PowerPoint slides, a solutions manual, and additional MATLAB-based simulation problems, it is ideal for a first course in communications for senior undergraduate and graduate students.
Group-oriented communications will play a significant role in the next generation of networks as many services, such as pay-per-view media broadcasts and the delivery of network control messages, will rely upon the ability to reliably deliver data simultaneously to a large group of users. As these networks become increasingly pervasive and these multi-user services become increasingly ubiquitous, it will become essential that a complementary suite of security solutions are deployed in order to protect these services from a broad spectrum of security threats that are unique to group communications.
This easy-to-understand explanation of major aspects of today's telecommunications systems aims to give readers comprehensive coverage of the four major areas of telephone systems - station apparatus, transmission, switching and signalling. While maintaining all the fundamental information from the earlier editions, this revised and updated edition includes a perspective on telephony that includes central office, local loop, subscriber loop carrier, switching, multiplexing, LATA, signalling and network architecture. It also includes developments in fibre optic systems, information on PCS systems including GSM, TDMA, CDMA and policy implications of the US Telecommunications Act of 1996.
Perhaps no other technology has done so much to so many, but been studied by so few, as the telephone. Even as its physical size diminishes, the telephone is becoming more important. In Connections, now available in paperback, James E. Katz gives greater visibility to this important element in modern life. Katz examines how the telephone reveals gender relations in a way not predicted by feminist theories, how it can be used to protect and invade personal privacy, and how people harness telephone answering machines to their advantage. Katz's inquiry reports on obscene phone calls, the abuses of caller-ID technology, and attitudes toward voice mail. National data about cellular telephones are presented to show the extent to which beepers and car phones have become status symbols. Katz ranges from microsocial interaction to macrosocial theory, and from the family and personal levels of organization to that of large-scale industrial bureaucracies. The result of this investigation is a compelling mosaic spanning sociology and psychology, and organization and communication studies. These arresting portraits will offer profound insight to historians, students of American culture, and those concerned about the nature and direction of the emerging information society.
"John Rhodes' Videoconferencing for the Real World, is a one of the
world's most comprehensive blueprints on the awesome power of
videoconferencing." |
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