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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications
A guide to the emerging technologies now being considered for use in tomorrow's fibre subscriber loop systems, this book provides a rundown on what the technologies are, describes how they work, and then shows how to apply them to increase system performance, cut design time and lower costs. "Optical Transmission for the Subscriber Loop": presents basic concepts and technologies of network topology, multiplexing methods, access methods and transfer modes; describes the most important components for optical transmission - including optical fibres, cables, splices, connectors, laser diodes, photodiodes, fibre couplers, wavelength division multiplex (WDM), and subcarrier multiplex (SCM) devices; offers comprehensive coverage of fibre connections in fibre communications engineering; covers bidirectional transmission systems and presents several approaches for economical transceivers that can be used in these systems; and explains WDM- and SCM-based multi-chanel systems.
The study of telecommunications and networking allows us to understand existing modes of communication and information transfer while also developing new methods for managing, modeling, and regulating the exchange of information. Research, Practice, and Educational Advancements in Telecommunications and Networking offers multidisciplinary perspectives on architectures and systems for effective, efficient communication across different types of infrastructures, which include online and wireless networks. Collecting research on mobile ad hoc networks, VoIP, and mobile recommendation systems, this book provides theoretical discussions, as well as practical research on new and emerging developments in telecommunications and networking.
The book systematically introduces the visible light communication (VLC) technology in detail. Basic concepts and how to realize the system are both illustrated, including the transmitter, channel, and the receiver. In addition, a good many experimental results are presented to help readers further understand the VLC technologies. The upper-layer protocols of visible light communication system and the technology trends are also discussed. This book can be a good reference work for researchers, engineers, and graduate students in the fields of communications, LED, and optics.
Wireless Body Area Networks (WBANs) are expected to promote new applications for the ambulatory health monitoring of chronic patients and elderly population, aiming to improve their quality of life and independence. These networks are composed by wireless sensor nodes (WSNs) used for measuring physiological variables (e.g., glucose level in blood or body temperature) or controlling therapeutic devices (e.g., implanted insulin pumps). These nodes should exhibit a high degree of energy autonomy in order to extend their battery lifetime or even make the node supply to rely on harvesting techniques. Typically, the power budget of WSNs is dominated by the wireless link and, hence, many efforts have been directed during the last years toward the implementation of power efficient transceivers. Because of the short range (typically no more than a few meters) and low data rate (typically in between 10 kb/s and 1 Mb/s), simple communication protocols can be employed. One of these protocols, specifically tailored for WBAN applications, is the Bluetooth low energy (BLE) standard. This book describes the challenges and solutions for the design of ultra-low power transceivers for WBANs applications and presents the implementation details of a BLE transceiver prototype. Coverage includes not only the main concepts and architectures for achieving low power consumption, but also the details of the circuit design and its implementation in a standard CMOS technology."
Industrial Process Identification brings together the latest advances in perturbation signal design. It describes the approaches to the design process that are relevant to industries. The authors' discussion of several software packages (Frequency Domain System Identification Toolbox, prs, GALOIS, multilev_new, and Input-Signal-Creator) will allow readers to understand the different designs in industries and begin designing common classes of signals. The authors include two case studies that provide a balance between the theory and practice of these designs: the identification of a direction-dependent electronic nose system; and the identification of a multivariable cooling system with time-varying delay. Major aspects of signal design such as the formulation of suitable specifications in the face of practical constraints, the classes of designs available, the various objectives necessitating separate treatments when dealing with nonlinear systems, and extension to multi-input scenarios, are discussed. Codes, including some that will produce simulated data, are included to help readers replicate the results described. Industrial Process Identification is a powerful source of information for control engineers working in the process and communications industries seeking guidance on choosing identification software tools for use in practical experiments and case studies. The book will also be of interest to academic researchers and students working in electrical, mechanical and communications engineering and the application of perturbation signal design. Advances in Industrial Control reports and encourages the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.
"Design of Modern Communication Networks" focuses on methods and
algorithms related to the design of communication networks, using
optimization, graph theory, probability theory and simulation
techniques. The book discusses the nature and complexity of the
network design process, then introduces theoretical concepts,
problems and solutions. It demonstrates the design of network
topology and traditional loss networks, followed by uncontrolled
packet networks, flow-controlled networks, and multiservice
networks. Access network design is reviewed, and the book concludes
by considering the design of survivable (reliable) networks and
various reliability concepts.
This book describes both theoretical and practical aspects of advanced broadband patch antennas, providing a comprehensive review of the state of the art in the field. Modern antenna techniques are discussed for single patches, dual linear and circular polarizations designs, and arrays used in mobile communications. Includes 88 equations, 115 figures, and 200 references.
This book presents cutting-edge work on the most challenging research issues concerning intelligent transportation systems (ITS), introducing selected, highly relevant advanced research on scheduling and real-time communication for vehicular networks, as well as fault tolerance, test beds and simulations for ITS. The authors define new architectures that support cooperative sensing in ITS and offer guidance for the development of a reference end-to-end implementation. The presented results allow advanced traffic and travel management strategies to be formulated on the basis of reliable and real-time input data. The effectiveness of these new strategies, together with the proposed systems, is assessed in field trials and via simulations. The chapters in this book detail new research findings, algorithms, protocols, and the development of an implementation platform for ITS that merges and integrates heterogeneous data sources into a common system. In addition, they provide a set of advanced tools for the control, monitoring, simulation, and prediction of traffic that result in safer, more sustainable, and less congested roads. Work undertaken within the framework of the FP7 project ICSI (Intelligent Cooperative Sensing for Improved traffic efficiency) is also included in the research activities addressed.
Online learning from a signal processing perspective There is increased interest in kernel learning algorithms in neural networks and a growing need for nonlinear adaptive algorithms in advanced signal processing, communications, and controls. "Kernel Adaptive Filtering" is the first book to present a comprehensive, unifying introduction to online learning algorithms in reproducing kernel Hilbert spaces. Based on research being conducted in the Computational Neuro-Engineering Laboratory at the University of Florida and in the Cognitive Systems Laboratory at McMaster University, Ontario, Canada, this unique resource elevates the adaptive filtering theory to a new level, presenting a new design methodology of nonlinear adaptive filters. Covers the kernel least mean squares algorithm, kernel affine projection algorithms, the kernel recursive least squares algorithm, the theory of Gaussian process regression, and the extended kernel recursive least squares algorithm Presents a powerful model-selection method called maximum marginal likelihood Addresses the principal bottleneck of kernel adaptive filters--their growing structure Features twelve computer-oriented experiments to reinforce the concepts, with MATLAB codes downloadable from the authors' Web site Concludes each chapter with a summary of the state of the art and potential future directions for original research "Kernel Adaptive Filtering" is ideal for engineers, computer scientists, and graduate students interested in nonlinear adaptive systems for online applications (applications where the data stream arrives one sample at a time and incremental optimal solutions are desirable). It is also a useful guide for those who look for nonlinear adaptive filtering methodologies to solve practical problems.
By adopting a necessary multidisciplinary approach ICTs for Mobile and Ubiquitous Urban Infrastructures: Surveillance, Locative Media and Global Networks focuses on ICTs and new urban infrastructures to discuss how the world has been revolutionized. Discussions developed here, both theoretical and analytical, are all connected with global networks of signs, values and ideologies, locative media that gives us the freedom of spatial mobility and the possibility of creating and recreating places, and the surveillance artefacts which permeate our daily life and allow a hypothetical total control of space.
Explores global m-commerce strategies and technological standards, and provides cases of the subject from a global perspective.
The gripping, behind-the scenes story of one of the most sophisticated surveillance weapons ever created – and an existential threat to democracy and human rights. Pegasus is widely regarded as the most powerful cyber-surveillance system on the market – available to any government that can afford its multimillion-dollar price tag. The system’s creator, the NSO group, a private corporation headquartered in Israel, boasts about its ability to thwart terrorists and criminals. But the Pegasus system doesn’t only catch terrorists and criminals. Pegasus has been used by repressive regimes to spy on thousands of innocent people around the world: heads of state, diplomats, human rights defenders, lawyers, political opponents, and journalists. Virtually undetectable, the system can track a person’s daily movement in real time, gain control of the device’s microphones and cameras at will, and capture all videos, photos, emails, texts, and passwords – encrypted or not. Its full reach is not even known. This is the gripping story of how Pegasus was uncovered, written by Laurent Richard and Sandrine Rigaud, the two intrepid reporters who revealed the scandal in collaboration with an international consortium of journalists. Their findings shook the world. Tense and compelling, Pegasus reveals how thousands of lives have been turned upside down by this unprecedented threat, and exposes the chilling new ways governments and corporations are laying waste to human rights – and silencing innocent citizens.
The book presents the challenges inherent in the paradigm shift of network systems from static to highly dynamic distributed systems - it proposes solutions that the symbiotic nature of biological systems can provide into altering networking systems to adapt to these changes. The author discuss how biological systems - which have the inherent capabilities of evolving, self-organizing, self-repairing and flourishing with time - are inspiring researchers to take opportunities from the biology domain and map them with the problems faced in network domain. The book revolves around the central idea of bio-inspired systems -- it begins by exploring why biology and computer network research are such a natural match. This is followed by presenting a broad overview of biologically inspired research in network systems -- it is classified by the biological field that inspired each topic and by the area of networking in which that topic lies. Each case elucidates how biological concepts have been most successfully applied in various domains. Nevertheless, it also presents a case study discussing the security aspects of wireless sensor networks and how biological solution stand out in comparison to optimized solutions. Furthermore, it also discusses novel biological solutions for solving problems in diverse engineering domains such as mechanical, electrical, civil, aerospace, energy and agriculture. The readers will not only get proper understanding of the bio inspired systems but also better insight for developing novel bio inspired solutions.
This is a guide to the design and application of elliptical dielectric waveguides and fibers. Written by one of the pioneers of optical fiber technology, it shows the theoretical basis of the technology, demonstrates the practical uses for elliptical fibers, guides the reader through design criteria and trade-offs, and gives immediate access to collected data and references on the topic. "Elliptical Fiber Waveguides" begins with an historical overview, and then provides detailed coverage of specific waveguide and fiber modes, including all relevant specifications and data currently available. The book examines the use of elliptical fibers for a wide variety of recent applications, including sensors, rare-earth-doped fiber sources, and amplifiers. With its 278 equations, 161 figures, and nearly 200 references to the literature, "Elliptical Fiber Waveguides" brings together in one source the complete body of information currently available on this promising technology.
This book presents an investigative approach to globalization-driving technologies that efficiently deliver ubiquitous, last-mile, broadband internet access to emerging markets and rural areas. Research has shown that ubiquitous internet access boosts socio-economic growth through innovations in science and technology, and has a positive effect on the lives of individuals. Last-mile internet access in developing countries is not only intended to provide areas with stable, efficient, and cost-effective broadband capabilities, but also to encourage the use of connectivity for human capacity development. The book offers an overview of the principles of various technologies, such as light fidelity and millimeter-wave backhaul, as last-mile internet solutions and describes these potential solutions from a signal propagation perspective. It also provides readers with the notional context needed to understand their operation, benefits, and limitations, and enables them to investigate feasible and tailored solutions to ensure sustainable infrastructures that are expandable and maintainable.
Cyber-physical systems (CPS) are characterized as a combination of physical (physical plant, process, network) and cyber (software, algorithm, computation) components whose operations are monitored, controlled, coordinated, and integrated by a computing and communicating core. The interaction between both physical and cyber components requires tools allowing analyzing and modeling both the discrete and continuous dynamics. Therefore, many CPS can be modeled as hybrid dynamic systems in order to take into account both discrete and continuous behaviors as well as the interactions between them. Guaranteeing the security and safety of CPS is a challenging task because of the inherent interconnected and heterogeneous combination of behaviors (cyber/physical, discrete/continuous) in these systems. This book presents recent and advanced approaches and tech-niques that address the complex problem of analyzing the diagnosability property of cyber physical systems and ensuring their security and safety against faults and attacks. The CPS are modeled as hybrid dynamic systems using different model-based and data-driven approaches in different application domains (electric transmission networks, wireless communication networks, intrusions in industrial control systems, intrusions in production systems, wind farms etc.). These approaches handle the problem of ensuring the security of CPS in presence of attacks and verifying their diagnosability in presence of different kinds of uncertainty (uncertainty related to the event occurrences, to their order of occurrence, to their value etc.).
Based on a detailed analysis of the signal model of the moving target, this thesis focuses on the theories and applications of ground moving target indicator (GMTI) and ground moving target imaging (GMTIm) algorithms in synthetic aperture radar/ ground moving target indicator (SAR/GMTI mode), wide-area surveillance ground moving target indication (WAS-GMTI) mode and frequency modulated continuous wave synthetic aperture radar (FMCW SAR) systems. The proposed algorithms can not only indicate and image fast-moving targets, but are also effective in the context of slow-moving target processing. The system design scheme combines the mechanical scanning mode and the airborne SAR system, while the azimuth moving target indication algorithm employs the additional range walk migration induced by FMCW SAR systems. In addition, the non-ideal errors that deteriorate the performance of GMTIm algorithms in real SAR data processing are discussed, and suitable compensation methods are provided.>
This book presents breakthroughs in the design of Wireless Energy Harvesting (WEH) networks. It bridges the gap between WEH through radio waves communications and power transfer, which have largely been designed separately. The authors present an overview of the RF-EHNs including system architecture and RF energy harvesting techniques and existing applications. They also cover the idea of WEH in novel discoveries of information, the theoretical bounds in WEH, wireless sensor networks, usage of modern channel coding together with WEH, energy efficient resource allocation mechanisms, distributed self-organized energy efficient designs, delay-energy trade-off, specific protocols for energy efficient communication designs, D2D communication and energy efficiency, cooperative wireless networks, and cognitive networks.
The purpose of this cutting-edge collection of essays is threefold: first, it presents the principles of data collection and interpretation or the methodological distinctions of a particular method appropriate to technical communication research. Second, it discusses the foundational principles of the methodologies given the primary discipline in which they were created and applied. Finally, it reflects upon the process of importing and employing these methodologies into the research field of technical communication, and on how technical communication research has contributed to the development and application of these methodologies. Written by many noted scholars in the field and presenting a wide range of research methods, "Research in Technical Communication" combines theory and practice. Both technical communicators and industry researchers who want to learn more about workplace research and methodologies will find it invaluable, as will beginning and advanced scholars, who will find much that is useful in its variety of subjects.
The most important theoretical aspects of Image and Signal Processing (ISP) for both deterministic and random signals, the theory being supported by exercises and computer simulations relating to real applications. More than 200 programs and functions are provided in the MATLAB(R) language, with useful comments and guidance, to enable numerical experiments to be carried out, thus allowing readers to develop a deeper understanding of both the theoretical and practical aspects of this subject. Following on from the first volume, this second installation takes a more practical stance, providing readers with the applications of ISP.
This book highlights technology trends and challenges that trace the evolution of antenna design, starting from 3rd generation phones and moving towards the latest release of LTE-A. The authors explore how the simple monopole and whip antenna from the GSM years have evolved towards what we have today, an antenna design that is compact, multi-band in nature and caters to multiple elements on the same patch to provide high throughput connectivity. The scope of the book targets a broad range of subjects, including the microstrip antenna, PIFA antenna, and the monopole antenna to be used for different applications over three different mobile generations. Beyond that, the authors take a step into the future and look at antenna requirements for 5G communications, which already has the 5G drive in place with prominent scenarios and use-cases emerging. They examine these, and put in place the challenges that lie ahead for antenna design, particularly in mm-Wave design. The book provides a reference for practicing engineers and under/post graduate students working in this field. |
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