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Wireless Sensor Networks ; 4th European Conference, EWSN 2007, Delft, The Netherlands, January 29-31, 2007, Proceedings
This book constitutes the refereed proceedings of the 4th European Workshop on Wireless Sensor Networks, EWSN 2007, held in Delft, The Netherlands in January 2007. The papers are organized in topical sections on networking, tracking, algorithms, applications and support, medium access control, os and tools, as well as localization.
Wireless Sensor Networks ; 3rd European Workshop, EWSN 2006, Zurich, Switzerland, February 13-15, 2006, Proceedings
This volume contains the proceedings of EWSN 2006, the third in a series of - ropean workshops on wireless sensor networks. Its objective was to present, discuss, and explore the latest technical developments in the field of wireless sensor networks, as well as potential future directions. Wireless sensor networks provide a bridge between traditional information systems and the physical world, with collections of wirelessly networked s- sor nodes being deployed in our physical environment to cooperatively monitor real-world phenomena, but also to control aspects of the physical world. In c- trast to traditional computing systems which are mostly decoupled from the real world
Wireless Mesh Networks : Architectures and Protocols
Wireless Mesh Networks provides a unified view of the state-of-the-art achievements in the area of protocols and architectures for wireless mesh networking (WMN) technology. With contributions from leading experts in the field, the book covers aspects of analysis, design, deployment, and optimization of protocols and architectures for WMNs. In particular, the topics include challenges and issues in designing architectures and protocols for WMNs, medium access control and routing protocols for WMNs, resource allocation and scheduling in WMNs, cost optimization in WMN nodes using energy harvesting technologies, cross-layer design for WMNs, and security in WMNs.
Wireless Communications 2007 CNIT Thyrrenian Symposium
Wireless Communications: 2007 CNIT Thyrrhenian Symposium compiles the papers presented at the 2007 Thyrrenian International Workshop on Digital Communication held in Italy in September of 2007. The papers represent the new aspects of wireless communication systems that approach the challenge of moving towards multimedia communications and IP technology.
Ultra-Wideband Short-Pulse Electromagnetics 8
Ultra-Wideband Short-Pulse Electromagnetics 8 is based on the American Electromagnetics 2006 conference held from June 3-7 in Albuquerque, New Mexico. Topical areas covered in this volume include pulse radiation and measurement, scattering theory, target detection and identification, antennas, signal processing, and communications.
Tower to tower : Gigantism in architecture and digital culture
Maps and critiques the trajectory of gigantism in architecture and digital culture—the convergence of tall buildings and networked infrastructures—from the Eiffel Tower to One World Trade Center. They show how these two forms of gigantism intersect in the figure of the skyscraper with a transmitting antenna on its roof, a gigantic building that is also a nodal point in a gigantic digital infrastructure. focus on two paradigmatic tower sites: the Eiffel Tower and the Twin Towers of the destroyed World Trade Center.
The Square Kilometre Array : An Engineering Perspective
This volume is an up-to-date and comprehensive overview of the engineering of the Square Kilometre Array (SKA), a revolutionary instrument which will be the world’s largest radio telescope. Expected to be completed by 2020, the SKA will be a pre-eminent tool in probing the Early Universe and in enhancing greatly the discovery potential of radio astronomy in many other fields. This book, containing 36 refereed papers written by leaders in SKA engineering, has been compiled by the International SKA Project Office and is the only contemporary compendium available. It features papers dealing with pivotal technologies such as antennas, RF systems and data transport. As well, overviews of important SKA demonstrator instruments and key system design issues are included. Practising professionals, and students interested in next-generation telescopes, will find this book an invaluable reference.
The Paraboloidal Reflector Antenna in Radio Astronomy and Communication : Theory and Practice
Reflector antennas are widely used in the microwave and millimeter wavelength domain. Radio astronomers have developed techniques of calibration of large antennas with radio astronomical methods. These have not been comprehensively described. This text aims to fill this gap.
Space Systems Failures : Disasters and Rescues of Satellites, Rocket and Space Probes
The very first book on space systems failures written from an engineering perspective. In the 1960s and 1970s deep space missions were dispatched in pairs in case one was lost in launch or failed during its journey. Following the triumphs of the Viking landings on Mars in 1976 and both Voyagers spacecraft successfully surveying the outer giant planets of the Solar System, it was decided by NASA to cut costs and send out just a single probe. Although Magellan successfully mapped Venus by radar, it suffered from problems during the flight. Then came the loss of Mars Observer, whose engine exploded as it was preparing to enter Mars’ orbit because it was using technology designed for Earth’s satellites and the engine was not suited to spending several months in space. Later came the high-profile losses of Mars Climate Observer and Mars Polar Lander - a consequence of the faster, better, cheaper philosophy introduced by Dan Goldin in 1993. Even the highly successful Galileo mission suffered a major setback when its high-gain antenna (also based on satellite mission suffered a major setback when its high-gain antenna (also based on satellite communication technology) failed to deploy fully, greatly diminishing the craft’s radio transmission capabilities, forcing the ground crew to re-programme the on-board computer to enable it to fulfil its mission and provide stunning images of Jupiter and its moons.
Silicon-Based RF Front-Ends for Ultra Wideband Radios
The book begins with an introduction of several transceiver architectures for UWB. The discussion then focuses on RF front-end of the UWB radio. First, the design and analysis of a performance-optimized CMOS distributed LNA is presented. This is followed by design of novel distributed RF front-ends for UWB IF-receivers (UWB-DRF). The book continues with the introduction of a novel distributed direct conversion RF front-end (DDC-RF). The DDC-RF power and area-efficiently combines the wideband distributed approach with IQ requirement of a direct conversion receiver. Furthermore, deploying merged LNA/mixer enables low-power design, while achieving superior linearity over the conventional distributed amplifiers.
Signal Processing for Telecommunications and Multimedia
Presents a group of invited contributions, some of which have been based on the papers presented at the 7th International symposium on DSP for Communication Systems held in Coolangatta on the Gold Coast, Australia, in December 2003. Part I of the book deals with applications of signal processing to transform what we hear or see to the form that is most suitable for transmission or storage for a future retrieval. The first three chapters in this section are devoted to processing of speech and other audio signals. The next two chapters consider image coding and compression, while the last chapter of this part describes classification of video sequences in the MPEG domain.
Robust Signal Processing for Wireless Communications
This book treats the robust design of signal processing algorithms for wireless communications which are based on an incomplete model of the propagation channel. The systematic treatment of this practical problem focuses on signal processing tasks in the physical layer with multiple antennas and relies on a description of the errors and uncertainties in the system's model. It applies principles of modern estimation, optimization, and information theory. Tutorial introductions to relevant literature and mathematical foundations provide the necessary background and context to the reader.
RF Imperfections in High-rate Wireless Systems : Impact and Digital Compensation
the book focuses on multiple-antenna orthogonal frequency division multiplexing (MIMO OFDM), which will be applied as basis for the majority of near-future high-rate wireless systems. The basics of MIMO OFDM are introduced and the typically required signal processing in the implementation of such systems is elucidated. The book treats several of the front-end impairments that seriously affect the performance of MIMO OFDM systems: carrier frequency offset, phase noise, IQ imbalance and nonlinearities. To provide an in-depth understanding of the impact of these RF imperfections, analytical performance results are presented in the book. These results are then used to design different compensation approaches based on digital baseband processing.
Remote antenna laboratory measurements and control for E-learning using LabVIEW
Our project aims to design and implement a remote control system for the ED-3200 antenna laboratory, which performs experiments and measurements in the laboratory on different types of antennas, using several frequencies, in order to know the antenna pecifications and draw its radiation pattern. These lab experiments were performed remotely using LabVIEW software development environment, web and internet technologies. The same techniques and tools can be applied to conduct lab experiments and measurements remotely in different specializations (medicine, engineering and industry).
Quasi-Optical Control of Intense Microwave Transmission ; Proceedings of the NATO Advanced Research Workshop on Quasi-Optical Control of Intense Microwave Transmission Nizhny, Novgorod, Russia 17 - 20 February 2004
Between February 17 and 20, 2004, approximately fifty scientists from ten countries came together at the Institute of Applied Physics (IAP), Nizhny Novgorod, Russia to participate in a NATO sponsored Advanced Research Workshop whose appellation is re flected in the title of this volume, namely Quasi Optical Control of Intense Microwave Transmission. The fashionable label “quasi optical ” has come into use in recent decades to denote structures whose characteristic dimensions exceed (sometimes by large factors) the free space radiation wavelength. Such structures were and are developed to replace the traditional single eigenmode ones in situations when high frequenc ies (short wavelengths) are combined with high powers, a combination that could otherwise lead to RF breakdown and high Ohmic wall heating rates. Treatments of guided wave propagation in oversized structures is aimed at pr eserving the propagating field coherence and thus to provide efficient transmission of RF power to remote destinations such as antennas, microwave ovens, plasma chemical reactors, nuclear fusion machines, and the like.
Modeling and Control of Antennas and Telescopes
Modeling and Control of Antennas and Telescopes presents the author’s research and field experience in the area of antenna modeling, dynamics, and control. The required spacecraft tracking accuracy of 1 mdeg was the impetus for the new approaches to the antenna controls that use model based controllers (LQG and H¥ ). Consequently, modeling also required a new approach using system identification techniques. Most of the material presented is new in the telescope industry. The methods have been not only analyzed and tested, but actually implemented, giving confidence in the final result, which is significantly increased antenna pointing accuracy.
Modeling and Analysis of Transient Processes in Open Resonant Structures : New Methods and Techniques
The principal goal of the book is to describe new accurate and robust algorithms for open resonant structures with substantially increased efficiency. The book presents a systematic approach to the study of electromagnetic waves scattering which can be introduced in undergraduate/postgraduate education in theoretical and applied radiophysics and different advanced engineering courses on antenna and wave-guide technology.
mm-Wave Silicon Technology : 60 GHz and Beyond
mm-Wave Silicon Technology: 60GHz and Beyond covers silicon-based millimeter wave circuits and systems. It provides in depth coverage of advanced silicon processing technologies including CMOS and SiGe as well as modeling of active and passive devices on silicon at millimeter waves. It also provides coverage of mm-wave circuit building blocks such as low noise amplifiers, mixers, voltage controlled oscillators, frequency dividers, and power amplifiers that are suitable for integration in silicon. The book contains information on highly integrated mm-wave transceiver architectures with several silicon-based case studies. The book also includes advanced topics such as antenna arrays and beam-forming on silicon.
Microwave Engineering : Concepts and Fundamentals
Covers everything from wave propagation to reflection and refraction, guided waves, and transmission lines, providing a comprehensive understanding of the underlying principles at the core of microwave engineering. This encyclopedic text not only encompasses nearly all facets of microwave engineering, but also gives all topics—including microwave generation, measurement, and processing—equal emphasis. Packed with illustrations to aid in comprehension. Describes the mathematical theory of waveguides and ferrite devices, devoting an entire chapter to the Smith chart and its applications Discusses different types of microwave components, antennas, tubes, transistors, diodes, and parametric devices Examines various attributes of cavity resonators, semiconductor and RF/microwave devices, and microwave integrated circuits
Genetic programming IV : Routine human-competitive machine intelligence
Genetic Programming IV: Routine Human-Competitive Machine Intelligence presents the application of GP to a wide variety of problems involving automated synthesis of controllers, circuits, antennas, genetic networks, and metabolic pathways. The book describes fifteen instances where GP has created an entity that either infringes or duplicates the functionality of a previously patented 20th-century invention, six instances where it has done the same with respect to post-2000 patented inventions, two instances where GP has created a patentable new invention, and thirteen other human-competitive results. The book additionally establishes: GP now delivers routine human-competitive machine intelligence GP is an automated invention machine GP can create general solutions to problems in the form of parameterized topologies GP has delivered qualitatively more substantial results in synchrony with the relentless iteration of Moore's Law
