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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications > Telephone technology
Compressed Sensing in Li-Fi and Wi-Fi Networks features coverage of the first applications in optical telecommunications and wireless. After extensive development of basic theory, many techniques are presented, such as non-asymptotic analysis of random matrices, adaptive detection, greedy algorithms, and the use of graphical models. The book can be used as a comprehensive manual for teaching and research in courses covering advanced signal processing, efficient data processing algorithms, and telecommunications. After a thorough review of the basic theory of compressed sensing, many mathematical techniques are presented, including advanced signal modeling, Nyquist sub-sampling of analog signals, the non-asymptotic analysis of random matrices, adaptive detection, greedy algorithms, and the use of graphical models.
Network Routing: Algorithms, Protocols, and Architectures, Second Edition, explores network routing and how it can be broadly categorized into Internet routing, circuit-switched routing, and telecommunication transport network routing. The book systematically considers these routing paradigms, as well as their interoperability, discussing how algorithms, protocols, analysis, and operational deployment impact these approaches and addressing both macro-state and micro-state in routing. Readers will learn about the evolution of network routing, the role of IP and E.164 addressing and traffic engineering in routing, the impact on router and switching architectures and their design, deployment of network routing protocols, and lessons learned from implementation and operational experience. Numerous real-world examples bring the material alive.
Creative Mobile Media provides a guide to the creation, production and display of media with mobile technology at its heart. Split into two parts, the first gives a practical how-to guide on producing and exhibiting different forms of mobile art including photographs and films. From taking the perfect selfie to creating a short film, there is advice on how to produce, sell and market the products created on your phone. Also included are exercises designed to build technical skills and improve creative thinking, meaning you are able to practice the creation of media and engage with a global community through new digital technologies. The second part uses case studies to look at the effect of these new digital technologies within areas such as journalism, advocacy, ethics and social participation. Mobile and cellular phones are now ingrained within all aspects of life, and investigated here is how 21st Century society is adapting to these changes.With both theoretical and practical guidance, this book is perfect for media students and mobile users interested in how creative mobile technology can be used professionally and commercially, and why it matters in our digitised world.
Creative Mobile Media provides a guide to the creation, production and display of media with mobile technology at its heart. Split into two parts, the first gives a practical how-to guide on producing and exhibiting different forms of mobile art including photographs and films. From taking the perfect selfie to creating a short film, there is advice on how to produce, sell and market the products created on your phone. Also included are exercises designed to build technical skills and improve creative thinking, meaning you are able to practice the creation of media and engage with a global community through new digital technologies. The second part uses case studies to look at the effect of these new digital technologies within areas such as journalism, advocacy, ethics and social participation. Mobile and cellular phones are now ingrained within all aspects of life, and investigated here is how 21st Century society is adapting to these changes.With both theoretical and practical guidance, this book is perfect for media students and mobile users interested in how creative mobile technology can be used professionally and commercially, and why it matters in our digitised world.
Take command of your Android smartphone. Android Smartphones For Seniors For Dummies is the best no-nonsense guide for members of the older-and-better crowd who want to use their smartphone's features without making a support call. This fluff-free guide shows you the essentials of a smartphone running the Android operating system. Thanks to larger-print type and full-color images, it's easy to learn how to turn your phone into a communications, photography, security, and media streaming powerhouse―without wasting time on the features you may never use. You'll definitely pick up a few tricks to show off to friends and family.
This is the perfect Dummies guide for Android smartphone users who want to feel confident handling the basics of apps and functions that they'll use every day.
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.
"Great for beginners -- even if you don't know object-oriented programming, you can learn from examples on the 'Net and be on your way very soon. You will be able to confidently build apps that rival the ones included by Apple itself." -- Josh Content, iPhone Developer Developers everywhere are eager to create applications for the iPhone, and many of them prefer the open source, community-developed tool chain to Apple's own toolkit. In this new edition of iPhone Open Application Development, author Jonathan Zdziarski covers the latest version of the open toolkit -- now updated for Apple's iPhone 2.x software and iPhone 3G -- and explains in clear language how to create applications using Objective-C and the iPhone API. Zdziarski, who cracked the iPhone code and built the first fully-functional application with the open toolkit, includes detailed recipes and complete examples for graphics and audio programming, games programming with the CoreSurfaces and CoreImage interfaces, working with iTunes, and using sensors. With the open toolkit and this book, you can build iPhone applications that: Display status bars, preference tables, and other standard elements of the iPhone user interface Play pre-recorded files or program-generated sounds Read and write plain text files and HTML files, including pages from the Web, and control display elements, such as scrollbars Read and respond to changes in orientation when the user turns the phone around And more. The first edition of this book developed an instant following and became the center of a movement. The second edition of iPhone Open Application Development will make this open source toolkit an indispensable part of iPhone application development.
As an example of convergence, the mobile phone-especially in the form of smartphone-is now ushering in new promises of seamlessness between engagement with technology and everyday common experiences. This seamlessness is not only about how one transitions between the worlds of the device and the physical environment but it also captures the transition and convergences between devices as well (i.e. laptop to smartphone, smartphone to tablet). This volume argues, however, that these transitions are far from seamless. We see divisions between online and offline, virtual and actual, here and there, taking on different cartographies, emergent forms of seams. It is these seams that this volume acknowledges, challenges and explores-socially, culturally, technologically and historically-as we move to a deeper understanding of the role and impact of mobile communication's saturation throughout the world.
The bestselling guide to getting the most out of your Android Samsung Galaxy S9 Samsung Galaxy S9 For Dummies documents all the features and capabilities of this popular smartphone, approaching them from the point of view of a user who is perhaps a bit baffled by the documentation and online support that comes with the phone. All aspects of the device are covered, from setup and configuration, to extensive use of the new features and capabilities. Whether you're looking for approachable guidance on the basics like texting, e-mailing, and accessing the internet, or more advanced topics like downloading apps, synching with a PC, and expanding the phone's potential with new software releases, this trusted resource covers it all. Take pictures, watch movies, and record videos Use maps and navigation Stay connected on social networking sites Make sense of software updates You'll want to keep this book close by, referring to it often as you explore the features and functions of your new Samsung Galaxy S9 smartphone.
As an example of convergence, the mobile phone-especially in the form of smartphone-is now ushering in new promises of seamlessness between engagement with technology and everyday common experiences. This seamlessness is not only about how one transitions between the worlds of the device and the physical environment but it also captures the transition and convergences between devices as well (i.e. laptop to smartphone, smartphone to tablet). This volume argues, however, that these transitions are far from seamless. We see divisions between online and offline, virtual and actual, here and there, taking on different cartographies, emergent forms of seams. It is these seams that this volume acknowledges, challenges and explores-socially, culturally, technologically and historically-as we move to a deeper understanding of the role and impact of mobile communication's saturation throughout the world.
Mobile phones are no longer what they used to be. Not only can users connect to the Internet anywhere and anytime, they can also use their devices to map their precise geographic coordinates and access location-specific information like restaurant reviews, historical information, and locations of other people nearby. The proliferation of location-aware mobile technologies calls for a new understanding of how we define public spaces, how we deal with locational privacy, and how networks of power are developed today. In Mobile Interfaces in Public Spaces, Adriana de Souza E. Silva and Jordan Frith examine these social and spatial changes by framing the development of location-aware technology within the context of other mobile and portable technologies such as the book, the Walkman, the iPod, and the mobile phone. These technologies work as interfaces to public spaces that is, as symbolic systems that not only filter information but also reshape communication relationships and the environment in which social interaction takes place. Yet rather than detaching people from their surroundings, the authors suggest that location-aware technologies may ultimately strengthen our connections to locations.
Gain the knowledge and tools to deliver compelling mobile phone applications. Mobile and wireless application design is complex and challenging. Selecting an application technology and designing a mobile application require an understanding of the benefits, costs, context, and restrictions of the development company, end user, target device, and industry structure. "Designing the Mobile User Experience" provides the experienced product development professional with an understanding of the users, technologies, devices, design principles, techniques and industry players unique to the mobile and wireless space. Barbara Ballard describes the different components affecting the user experience and principles applicable to the mobile environment, enabling the reader to choose effective technologies, platforms, and devices, plan appropriate application features, apply pervasive design patterns, and choose and apply appropriate research techniques. "Designing the Mobile User Experience: " Provides a comprehensive guide to the mobile user experience, offering guidance to help make appropriate product development and design decisions. Gives product development professionals the tools necessary to understand development in the mobile environment. Clarifies the components affecting the user experience and principles uniquely applicable to the mobile application field. Explores industry structure and power dynamics, providing insight into how mobile technologies and platforms become available on current and future phones. Provides user interface design patterns, design resources, and user research methods for mobile user interface design. Illustrates concepts with example photographs, explanatory tables and charts, and an example application. "Designing the Mobile User Experience" is an invaluable resource for information architects, user experience planners and designers, interaction designers, human factors specialists, ergonomists, product marketing specialists, and brand managers. Managers and directors within organizations entering the mobile space, advanced students, partnership managers, software architects, solution architects, development managers, graphic designers, visual designers, and interface designers will also find this to be an excellent guide to the topic.
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.
This book presents some of the most interesting iPhone and iPad games, along with stories of the people behind these games. It describes hundreds of titles, including well-known games and hidden games, and provides insight into the development of games for the iOS platform.
This book covers issues related to 5G network security. The authors start by providing details on network architecture and key requirements. They then outline the issues concerning security policies and various solutions that can handle these policies. Use of SDN-NFV technologies for security enhancement is also covered. The book includes intelligent solutions by utilizing the features of artificial intelligence and machine learning to improve the performance of the 5G security protocols and models. Optimization of security models is covered as a separate section with a detailed information on the security of 5G-based edge, fog, and osmotic computing. This book provides detailed guidance and reference material for academicians, professionals, and researchers. Presents extensive information and data on research and challenges in 5G networks; Covers basic architectures, models, security frameworks, and software-defined solutions for security issues in 5G networks; Provides solutions that can help in the growth of new startups as well as research directions concerning the future of 5G networks.
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.
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.
The definitive guide to home and small business installation --
extensions, modems and telephone systems.
Designed to help readers understand all aspects of videoconferencing, this guide touches on hardware and software, selecting and accessing videoconferencing networks, developing a request for proposals, and operational and business considerations for videoconferencing. New to this edition are expanded coverage of standards and a security section.
SC-FDMA for Mobile Communications examines Single-Carrier Frequency Division Multiple Access (SC-FDMA). Explaining this rapidly evolving system for mobile communications, it describes its advantages and limitations and outlines possible solutions for addressing its current limitations. The book explores the emerging trend of cooperative communication with SC-FDMA and how it can improve the physical layer security. It considers the design of distributed coding schemes and protocols for wireless relay networks where users cooperate to send their data to the destination. Supplying you with the required foundation in cooperative communication and cooperative diversity, it presents an improved Discrete Cosine Transform (DCT)-based SC-FDMA system. It introduces a distributed space-time coding scheme and evaluates its performance and studies distributed SFC for broadband relay channels. Presents relay selection schemes for improving the physical layer Introduces a new transceiver scheme for the SC-FDMA system Describes space-time/frequency coding schemes for SC-FDMA Includes MATLAB (R) codes for all simulation experiments The book investigates Carrier Frequency Offsets (CFO) for the Single-Input Single-Output (SISO) SC-FDMA system, and Multiple-Input Multiple-Output (MIMO) SC-FDMA system simulation software. Covering the design of cooperative diversity schemes for the SC-FDMA system in the uplink direction, it also introduces and studies a new transceiver scheme for the SC-FDMA system.
This edited volume is the first book-length study focusing entirely on mobile phone use in China. Drawing on examples from a wide range of contemporary situations in China and beyond, the contributors argue that the mobile phone is in fact an important means by which one can understand a rapidly changing China, and the developing culture of mobile phone usage reflects both the cultural norms and struggle of the people. Through a theoretical comparison of usage in the West and in China, the editors assert the uniqueness of China's experience, highlighting that Chinese society is being exposed simultaneously to a rapid process of industrialization and cyberization. The contributors maintain that such density of experience under a compressed period combined with a thick cultural heritage and a country still under a dictating rule provides a unique situation and offers deep insights into Chinese culture in general. This work will be of great interest to all students and scholars of Asian communication studies, ICT and Chinese culture and society.
Following on from the successful first edition (March 2012), this book gives a clear explanation of what LTE does and how it works. The content is expressed at a systems level, offering readers the opportunity to grasp the key factors that make LTE the hot topic amongst vendors and operators across the globe. The book assumes no more than a basic knowledge of mobile telecommunication systems, and the reader is not expected to have any previous knowledge of the complex mathematical operations that underpin LTE. This second edition introduces new material for the current state of the industry, such as the new features of LTE in Releases 11 and 12, notably coordinated multipoint transmission and proximity services; the main short- and long-term solutions for LTE voice calls, namely circuit switched fallback and the IP multimedia subsystem; and the evolution and current state of the LTE market. It also extends some of the material from the first edition, such as inter-operation with other technologies such as GSM, UMTS, wireless local area networks and cdma2000; additional features of LTE Advanced, notably heterogeneous networks and traffic offloading; data transport in the evolved packet core; coverage and capacity estimation for LTE; and a more rigorous treatment of modulation, demodulation and OFDMA. The author breaks down the system into logical blocks, by initially introducing the architecture of LTE, explaining the techniques used for radio transmission and reception and the overall operation of the system, and concluding with more specialized topics such as LTE voice calls and the later releases of the specifications. This methodical approach enables readers to move on to tackle the specifications and the more advanced texts with confidence.
Emerging Location Aware Broadband Wireless Ad Hoc Networks is a compilation of new material on wireless networking and technology addressing several technical challenges in the field. The contributions are authored by distinguished experts who presented experimental results on their work at the recent International Symposium on Personal, Indoor, Mobile, Radio Communications (PIMRC) held in Barcelona, Spain, September 5-8, 2004. The authors present new results on issues involving wireless LANs and ad hoc networks; mobile wireless internet and satellite applications; encoding, algorithms and performance; and issues related to overlay networks, cross layer interactions and smart antennas. Whether you re a telecommunications/networking specialist, systems engineer or a scientist, Emerging Location Aware Broadband Wireless Ad Hoc Networks provides valuable insight from experts in wireless networking for developing wireless systems and meeting future application requirements.
Most of the literature on 5G has been in the form of standards, reports, and industry papers and articles. Because of this, researchers from non-scientific or non-engineering disciplines have struggled to understand how it is or could be operationalized and standardized across the globe. Here Peter Curwen and Jason Whalley offer the first manageable overview of 5G for a non-technical audience. This book provides a full review of the current literature, both academic and professional; an in-depth but non-technical discussion of the historical background of the development of 5G; and a broad, multidisciplinary survey of major issues including spectrum, and the licensing and launch of 5G networks throughout the world, distinguishing standalone 5G from non-standalone 5G. Throughout, there is consideration given to how operators and equipment vendors make money from mobile networks, and where money is potentially to be made in the years to come. Understanding 5G Mobile Networks: A Multidisciplinary Primer is a must-read not only for researchers and students in economics, business, strategy, and operations and logistics, but also for regulators, mobile companies, vertical operators, and anyone else interested in the development of this vital technology.
Globalization of Mobile and Wireless Communications is a collection of cutting-edge research in mobile and wireless communications with impact on developments as far forward as 2020 and beyond. The book draws upon the insights and performed research work of leading experts in the field. Topics of discussion are related but not limited to spectrum-efficient radio interface technologies, enabling technologies for reconfigurability, wireless sensor networks, cognitive networks, coherent wireless transmission, algorithmic design, middleware for novel services and applications. The material has been edited to provide a vision for the future of mobile and wireless, towards a dynamic communication system that breaks down the barriers between communications means; and evolves and integrates business models and culture to match the technological evolution. In addition, strategies on how to overcome the technological challenges for achieving that vision are also outlined. |
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