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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications > Telephone technology
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.
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.
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.
Without correct timing, there is no safe and reliable embedded software. This book shows how to consider timing early in the development process for embedded systems, how to solve acute timing problems, how to perform timing optimization, and how to address the aspect of timing verification.The book is organized in twelve chapters. The first three cover various basics of microprocessor technologies and the operating systems used therein. The next four chapters cover timing problems both in theory and practice, covering also various timing analysis techniques as well as special issues like multi- and many-core timing. Chapter 8 deals with aspects of timing optimization, followed by chapter 9 that highlights various methodological issues of the actual development process. Chapter 10 presents timing analysis in AUTOSAR in detail, while chapter 11 focuses on safety aspects and timing verification. Finally, chapter 12 provides an outlook on upcoming and future developments in software timing. The number of embedded systems that we encounter in everyday life is growing steadily. At the same time, the complexity of the software is constantly increasing. This book is mainly written for software developers and project leaders in industry. It is enriched by many practical examples mostly from the automotive domain, yet the vast majority of the book is relevant for any embedded software project. This way it is also well-suited as a textbook for academic courses with a strong practical emphasis, e.g. at applied sciences universities. Features and Benefits * Shows how to consider timing in the development process for embedded systems, how to solve timing problems, and how to address timing verification * Enriched by many practical examples mostly from the automotive domain * Mainly written for software developers and project leaders in industry
LTE network capabilities are enhanced with small cell deployment, with optimization and with new 3GPP features. LTE networks are getting high loaded which calls for more advanced optimization. Small cells have been discussed in the communications industry for many years, but their true deployment is happening now. New 3GPP features in Release 12 and 13 further push LTE network performance. This timely book addresses R&D and standardization activities on LTE small cells and network optimization, focusing on 3GPP evolution to Release 13. It covers LTE small cells from specification to products and field results; Latest 3GPP evolution to Release 13; and LTE optimization and learnings from the field.
This book takes China Mobile's "5G +" plan as the mainline, introduces three major scenarios, nine indicators, system architecture and basic principles of 5G, and systematically explains the essence of China Mobile's "5G +" for the first time. A lot of industry use cases and solutions are introduced for 5G to bring new changes to life, industries, and social governance. This book can benefit all readers who are interested in 5G. It also can be a reference for vertical industry partners to fully understand the possible applications of 5G. Most of all, it will help to promote all industries with new developments based on 5G's new kinetic energy.
Mobile Security and Privacy: Advances, Challenges and Future Research Directions provides the first truly holistic view of leading edge mobile security research from Dr. Man Ho Au and Dr. Raymond Choo-leading researchers in mobile security. Mobile devices and apps have become part of everyday life in both developed and developing countries. As with most evolving technologies, mobile devices and mobile apps can be used for criminal exploitation. Along with the increased use of mobile devices and apps to access and store sensitive, personally identifiable information (PII) has come an increasing need for the community to have a better understanding of the associated security and privacy risks. Drawing upon the expertise of world-renowned researchers and experts, this volume comprehensively discusses a range of mobile security and privacy topics from research, applied, and international perspectives, while aligning technical security implementations with the most recent developments in government, legal, and international environments. The book does not focus on vendor-specific solutions, instead providing a complete presentation of forward-looking research in all areas of mobile security. The book will enable practitioners to learn about upcoming trends, scientists to share new directions in research, and government and industry decision-makers to prepare for major strategic decisions regarding implementation of mobile technology security and privacy. In addition to the state-of-the-art research advances, this book also discusses prospective future research topics and open challenges.
Many wireless systems like GSM, GPRS, UMTS, Bluetooth, WLAN or WiMAX offer possibilities to keep people connected while on the move. In this flood of technology and claims that one single resource will serve all our needs, this book seeks to enable readers to examine and understand each technology, and how to utilise several different systems for the best results. "Communication Systems for the Mobile Information Society" not only contains a technical description of the different wireless systems available today, but also explains the thoughts that are behind the different mechanisms and implementations; not only the 'how' but also the 'why' is in focus. Thus the advantages and also limitations of each technology become apparent. Provides readers with a solid introduction to major global wireless standards and compares the different wireless technologies and their applications Describes the different systems based on the standards, their practical implementation and why they were designed the way they are The performance and capacity of each system in practice is analyzed and explained, accompanied with practical tips on how to discover the functionality of different networks by the readers themselves Questions at the end of each chapter and answers on the accompanying website make this book ideal for self study or as course material Illustrated with many realistic examples of how mobile people can stay in touch with other people, the Internet and their corporate intranet This book is an essential resource for telecommunication engineers, professionals and computer science and electrical engineering students who want to get a thorough end-to-end understandingof the different technical concepts of the systems on the market today.
This book introduces readers to mobile information services for networks. The content is divided into eight chapters, each of which presents a specific concept and the latest related developments in mobile information services. Mobile information services for networks can be defined as platform-independent functional entities that provide various services based on the communication network platform. The book discusses the three main supporting technologies for mobile information services: neighbor discovery in the data link layer; routing and balanced association in the network layer; and community structure detection in the application layer. Lastly, the book describes the development of applications based on the authors' mobile information service platform, as well as related key technologies in the domains of intelligent transportation, smart tourism, and mobile payment, such as trajectory analysis, location recommendation, and mobile behavior authentication, which are promoting the development of mobile information services. This book offers a valuable reference guide for researchers in the field of computer science and technology, as well as those in the field of network mobile information service technology.
Wireless Sensor Networks: Theory and Practice for Deployment addresses WSNs deployment, a mandatory and critical step in the process of developing WSNs solutions for real-life applications. The authors address simple approaches to deploy static WSNs, then exploring more sophisticated approaches to deploy mobile WSNs. Featuring detailed investigations of deployment-related issues such as deployment cost, coverage, connectivity, sensors reliability, and harsh deployment environments, this book will equip you with the basics and an advanced view of both the theoretical and practical aspects, along with knowledge of the guidelines for WSNs deployment.
This book provides a comprehensive description of "Radio Access Networks for UMTS" . The main content is based upon the release 6 version of the 3GPP specifications. Changes since the release 99 version are described while some of the new features from the release 7 version are introduced. Starting from the high-level network architecture, the first sections describe the flow of data between the network and end-user. This includes a dedicated chapter describing the Iub transport network. Detailed descriptions of both HSDPA and HSUPA reflect the increasing importance of efficient high data rate connections. Signalling procedures are described for speech, video and PS data connection establishment, SMS data transfer, soft handover and inter-system handover. The more practical subjects of link budgets and radio network planning are also addressed. More than 180 example log files reinforce the reader's understanding Summary bullet points allow rapid access to the most important information Focus upon how data is transferred between the network and end-user Dedicated chapters provide detailed descriptions of both HSDPA and HSUPA Step-by-step analysis of common signalling procedures Key radio network planning subjects addressed "Radio Access Networks for UMTS" is ideal for mobile telecommunications engineers working for equipment vendors, operators and regulators. It will also appeal to system designers, technical managers and students.
Whether used for communication, entertainment, socio-economic growth, crowd-sourcing social and political events, monitoring vital signs in patients, helping to drive vehicles, or delivering education, mobile technology has been transformed from a mode to a medium. Mobile Technology Consumption: Opportunities and Challenges explores essential questions related to the cost, benefit, individual and social impact, and security risks associated with the rapid consumption of mobile technology. This book presents the current state of mobile technologies and their use in various domains including education, healthcare, government, entertainment, and emerging economic sectors.
This book presents a detailed pedagogical description of the 5G commercial wireless communication system design, from an end to end perspective. It compares and contrasts NR with LTE, and gives a concise and highly accessible description of the key technologies in the 5G physical layer, radio access network layer protocols and procedures. This book also illustrates how the 5G core and EPC is integrated into the radio access network, how virtualization and edge computer fundamentally change the way users interact with the network, as well as 5G spectrum issues. This book is structured into six chapters. The first chapter reviews the use cases, requirements, and standardization organization and activities for 5G. These are 5G requirements and not NR specifically, as technology that meets the requirements, may be submitted to the ITU as 5G technology. This includes a set of Radio Access Technologies (RATs), consisting of NR and LTE; with each RAT meeting different aspects of the requirements. The second chapter describes the air interface of NR and LTE side by side. The basic aspects of LTE that NR builds upon are first described, followed by sections on the NR specific technologies, such as carrier/channel, spectrum/duplexing (including SUL), LTE/NR co-existence and new physical layer technologies (including waveform, Polar/LDPC codes, MIMO, and URLLC/mMTC). In all cases the enhancements made relative to LTE are made apparent. The third chapter contains descriptions of NR procedures (IAM/Beam Management/Power control/HARQ), protocols (CP/UP/mobility, including grant-free), and RAN architecture. The fourth chapter includes a detailed discussion related to end-to-end system architecture, and the 5G Core (5GC), network slicing, service continuity, relation to EPC, network virtualization, and edge computing. The fifth and major chapter describes the ITU submission and how NR and LTE meet the 5G requirements in significant detail, from the rapporteur responsible for leading the preparation and evaluation, as well as some field trial results. Engineers, computer scientists and professionals with a passing knowledge of 4G LTE and a comprehensive understanding of the end to end 5G commercial wireless system will find this book to be a valuable asset. Advanced-level students and researchers studying and working in communication engineering, who want to gain an understanding of the 5G system (as well as methodologies to evaluate features and technologies intended to supplement 5G) will also find this book to be a valuable resource.
Combining information on the most important and related technologies in the mobile communications field, this two book package gives the engineer a concise, complete and authoritative introduction to LTE and SAE and The Evolved Packet Core. Written by experts who played a leading role in the development of the standards, this package gives insight into the 'how' and 'why', enabling the professional engineer to implement the technologies that are central to the mobile broadband revolution. Includes details of the standards and technologies with 160 new pages: LTE radio interface architecture, LTE physical layer and LTE access procedures Contains three brand new chapters on LTE: Transmission Procedures, Flexible Bandwidth and LTE Evolution, plus expanded details on the physical layer (total LTE content is 270 pages) Examines the latest developments in the evolution of LTE into IMT-Advanced, the next stage of 3G Evolution Gives clear explanations of the role of OFDM and MIMO technologies in HSPA and LTE Outlines the System Architecture Evolution (SAE) supporting LTE and HSPA evolution Up-to-date coverage of SAE including the latest standards development Easily accessible overview of the architecture and concepts defined by SAE Thorough description of the Evolved Packet Core for LTE, fixed and other wireless accesses Comprehensive explanation of SAE key concepts, security and Quality-of-Service Covers potential service and operator scenarios including interworking with existing 3GPP and 3GPP2 systems Detailed walkthrough of network entities, protocols and procedures Written by established experts in the SAE standardization process, all of whom have extensive experience and understanding of its goals, history and vision
Starting with an overview of current research progresses on multiple access technology, the book then presents the theoretical fundamentals, technical principles, transmission scheme, key technologies and evaluation results of new multi-access technologies, especially focusing on its typical applications 5G communication systems. With extensive practical cases, it is an essential reference for researchers, engineers and graduate students.
This book offers a technical background to the design and optimization of wireless communication systems, covering optimization algorithms for wireless and 5G communication systems design. The book introduces the design and optimization systems which target capacity, latency, and connection density; including Enhanced Mobile Broadband Communication (eMBB), Ultra-Reliable and Low Latency Communication (URLL), and Massive Machine Type Communication (mMTC). The book is organized into two distinct parts: Part I, mathematical methods and optimization algorithms for wireless communications are introduced, providing the reader with the required mathematical background. In Part II, 5G communication systems are designed and optimized using the mathematical methods and optimization algorithms.
Wait--you took that amazing picture? Taking a photo is as simple as point and click. Taking a good photo takes a bit more know-how, and Android Smartphone Photography For Dummies is your quick-and-easy guide. No matter what model of Android phone you have, this book teaches you to produce high-quality images using the powerhouse camera you carry in your pocket every day. You'll learn the photography techniques pros use, like how to recognize beautiful outdoor lightning, how to capture moving subjects, and how to make stuff look good. Whatever kind of photos you want to take, this book will help you identify the gear and the apps you need for stunning results. With Dummies as your friendly instructor, you'll be wowing your friends and family before you know it. Explore your phone's camera, including little-known advanced features that will make a big difference in your images Figure out how to edit your pictures, correct lighting imbalances, apply neat filters, remove blemishes, and more Learn the basic principles of photography and apply your knowledge to outdoor photography, action shots, and still life Plus: capture video, organize your images, share photos online, choose a phone tripod, and protect your camera from the elements Dummies makes it easy for Android users of all skill levels to morph into masterful image-makers.
Your step-by-step roadmap to unlocking the full potential of your new Galaxy S22 Your new Samsung Galaxy S22 is packed with more features than you can count. So, how should you go about using this fantastic phone to its fullest? With some friendly and expert help from Samsung Galaxy S22 For Dummies! This book on Samsung's latest version of its flagship smartphone will walk you through every important function and feature on the S22. Want to make a call or send an email? Samsung Galaxy S22 For Dummies will show you how to set up your accounts and contacts to help you stay in touch with your friends and family. More interested in playing some new games or using the latest app? Flip to the chapter on accessing the Google Play Store and grab your favorite downloads. You'll find step-by-step descriptions, complete with helpful screenshots and pictures, to help you: Understand the home screen, buttons, and menus of your new phone so you can navigate it with ease Customize your phone with ringtones, wallpapers, lock screens, and widgets Improve your productivity with functional apps like Calendar and GPS Whether this is your first Samsung phone, or just the latest in a long line of them, Samsung Galaxy S22 For Dummies is your secret weapon to unlocking the full potential of one of the most powerful smartphones on the market today.
A complete and systematic treatment of signal processing for VoIP voice and fax This book presents a consolidated view and basic approach to signal processing for VoIP voice and fax solutions. It provides readers with complete coverage of the topic, from how things work in voice and fax modules, to signal processing aspects, implementation, and testing. Beginning with an overview of VoIP infrastructure, interfaces, and signals, the book systematically covers: Voice compression Packet loss concealment techniques DTMF detection, generation, and rejection Wideband voice modules operation VoIP Voice-Network bit rate calculations VoIP voice testing Fax over IP and modem over IP Country deviations of PSTN mapped to VoIP VoIP on different processors and architectures Generic VAD-CNG for waveform codecs Echo cancellation Caller ID features in VoIP Packetization-RTP, RTCP, and jitter buffer Clock sources for VoIP applications Fax operation on PSTN, modulations, and fax messages Fax over IP payload formats and bit rate calculations Voice packets jitter with large data packets VoIP voice quality Over 100 questions and answers on voice and more than seventy questions and answers on fax are provided at the back of the book to reinforce the topics covered throughout the text. Additionally, several clarification, interpretation, and discussion sections are included in selected chapters to aide in readers' comprehension. VoIP Voice and Fax Signal Processing is an indispensable resource for professional electrical engineers, voice and fax solution developers, product and deployment support teams, quality assurance and test engineers, and computer engineers. It also serves as a valuable textbook for graduate-level students in electrical engineering and computer engineering courses.
This book investigates the intuitive application of strategic knowledge arbitrage and serendipity (SKARSE) principles by CEOs in their use of mobile electronic devices. CEOs of small to mid-sized organizations are responsible for the income, expenses, and profitability of their respective division and rely heavily on mobile devices for learning, knowledge management, and communication. This book explores the effects of mobile devices on the individual CEO, their interpersonal relationships, and culture. It will benefit students, academics, and business professionals recognize events that can add to knowledge and enhance management skills.
Mobile computing technology has come a long way in recent years-providing anytime, anywhere communication and access to information. Bringing students up to date on important technological and industry developments, Principles of Mobile Computing and Communications examines mobile networks and relevant standards, highlighting issues unique to the mobile computing environment and exploring the differences between conventional and mobile applications. Going beyond discussions on wireless network infrastructure and how to develop enterprise mobile applications, this textbook considers pervasive computing and smart environments, the complexity of designing and developing such applications, and how issues are dependent on the context of the applications. Following an overview of what mobile computing has to offer and how its applications affect both our professional and personal lives, it focuses on the technologies and the infrastructure of all mobile and wireless networks, cellular networks, WLANs, WPANs, and sensor and mobile ad hoc networks. The textbook then discusses the Mobile IP, adaptive behavior, power management, resource constraints, interface design, seamless mobility support, and locating sensing techniques and systems. It also discusses important security issues that concern all users regardless of applications employed.
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.
This book presents effective ways to partition mobile devices such that the enterprise system access and its information are completely separated from the personal information. For those using mobile devices for personal and business purposes, the ability to keep the data secure and separate is critical. The applications for security in smart platforms range from personal email accounts to global enterprise systems. Several approaches for mobile virtualization are described, all creating secure and secluded environments for enterprise information. The authors present a reference architecture that allows for integration with existing enterprise mobile device management systems and provides a lightweight solution for containerizing mobile applications. This solution is then benchmarked with several of the existing mobile virtualization solutions across a range of mobile devices. Virtualization Techniques for Mobile Systems is an excellent resource for researchers and professionals working in mobile systems. Advanced-level students studying computer science and electrical engineering will also find the content helpful.
This book addresses current technology trends and requirements leading towards the next era in mobile communication handsets; and beyond that the book proposes innovative solutions that could be candidate solutions for 5G phones. It adopts a multidisciplinary and interdisciplinary stance towards handset design, a necessary ingredient if 5th Generation handset and services are to really take-off. Therefore the scope of the book targets a broad range of subjects, including energy efficiency, RF design, cooperation, context-aware systems, roaming, and short-range networking, all of which working in synergy to provide seamless mobility and high speed connectivity within a HetNet environment. Specifically, the authors investigate how we can exploit the cooperation paradigm and context-aware mechanism working in synergy to provide energy compliant phones that can introduce power savings of up to 50% on state-of-the-art. Going beyond this, a chapter on business modeling approaches is also included, based on incentive mechanisms for cooperation that will provide the necessary leverage to promote the up-take of the proposed technology. |
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