This book is about the technological foundations of the next generation of wireless networks for the mobile Internet. It places special emphasis on physical layer techniques and philosophies used in constructing interference-resistant wireless signals. A theoretical framework is developed around the idea of a post-Shannon approach to designing communications systems, viewing channel phenomena not as sources of degradation but as potential resources for additional information and signal robustness. Calhoun has worked in the wireless industry since 1980. Annotation (c)2003 Book News, Inc., Portland, OR (booknews.com).
Get the fundamental concepts, latest design techniques, and the most advanced architectures for tackling critical wireless communication problems such as capacity, error correction, and channel interference with this new book. It provides you with concepts that include signal interference avoidance and management as part of the design, and other forms of signal hardening -- such as error correction, advanced coding, and convolution -- and signal-shaping techniques -- such as source coding, baseband signal shaping, adaptive air interfaces, RF signal shaping, and smart antenna technologies.
The Internet has changed significantly from its beginnings as a simple network used to pass data from one computer to another. Containing essential tools for everyday information processing, the Internet is used by small and large organizations alike and continues to evolve with the changing information technology landscape. Technologies and Protocols for the Future of Internet Design: Reinventing the Web aims to provide relevant methods and theories in the area of the Internet design. It is written for the research community and professionals who wish to improve their understanding of future Internet technologies and gain knowledge of new tools and techniques in future Internet design.
This extensively revised and expanded edition of the Artech bestseller Mobile Antenna Systems Handbook puts the very latest technologies, design and analysis procedures, and applications at your command. It features all-new chapters on smart antennas, MIMO systems, and antennas for recently deployed mobile systems such as RFID, UWB, and terrestrial digital TV broadcasting, and provides a wealth of problem-solving guidance for tackling everything from propagation obstacles to SAR safety issues. Like the previous editions, this ultimate one-stop reference is designed to save you a mountain of work. You get hands-on expertise for every type of mobile antenna base station and terminal system, including its theory of operation, application strengths and weaknesses, performance characteristics, design procedures, analysis techniques, and optimization methods, complete with examples and worked-out calculations at every step. The material is further clarified with 567 diagrams, charts, and photos, bringing mobile antenna selection, design, and construction into clear focus. What's more, this resource includes a detailed glossary of antennas and their applications to help you zero in on the right antenna for any job with a flip of the page. From integrating MIMO antennas into handsets, to expanding system capacities with smart antennas, this information-packed resource helps you evaluate design and configuration options, locate crucial data and calculations, perform key analyses, and solve challenges standing in the way of your desired results. It serves as an indispensable reference, helping you design more powerful, versatile, and compact wireless mobile antenna systems.
An analysis of the physics of multiantenna systems Multiple-Input Multiple-Output (MIMO) technology is one of the current hot topics in emerging wireless technologies. This book fills the important need for an authoritative reference on the merits of MIMO systems based on physics and provides a sound theoretical basis for its practical implementation. The book also addresses the important issues related to broadband adaptive processing. Written by three internationally known researchers, Physics of Multiantenna Systems and Broadband Processing: Provides a thorough discussion of the physical and mathematical principles involved in MIMO and adaptive systems Examines the electromagnetic framework of wireless communications systems Uses Maxwell's theory to provide a system-based framework for the abstract concept of channel capacity Performs various numerical simulations to observe how a typical system will behave in practice Provides a mathematical formulation for broadband adaptive processing and direction-of-arrival estimation using real antenna arrays Integrates signal processing and electromagnetics to address the performance of realistic multiantenna systems With Physics of Multiantenna Systems and Broadband Processing, communication systems engineers, graduate students, researchers, and developers will gain a thorough, scientific understanding of this important new technology.
Focusing on core technologies at the heart of every system, this volume clearly shows engineers how to apply, reuse, and enhance these building blocks from one generation of networks to the next.
Antenna diversity has become of critical importance in today's mobile communications systems and this groundbreaking book offers you new approaches to designing transmission strategies for multi-antenna systems. With these novel and practical design strategies you can develop transmission systems that efficiently use available power and bandwidth. The book shows you how to design multi-antenna transceivers in single antenna systems that can reduce transmission power, while ensuring a specified quality level. In addition, you can design wireless networks that have a prescribed degree and probability of connectivity and fault tolerance.
This authoritative work brings you a timely, unified analysis of the various satellite navigation technologies, applications, and services in operation or development, and of the challenges that lie ahead in this rapidly evolving field. It describes the segments, signal characteristics, performance, and securities aspects of the GPS system, including the advances anticipated in the next-generation GPS-III, and brings you up to speed on the developing European GALILEO system and its innovative characteristics, services, and potential. A look at ground-based and satellite-based augmentation systems (GBAS and SBAS) highlights their performance-improving features and how these systems may serve as connection rings between GPS and future networks like GALILEO.
Geographic information systems (GIS)--a central repository of geographic data collected from various sources, including satellites and GPS--is emerging as one of the most intriguing and promising high-tech fields. This easy-to-understand resource provides technical and nontechnical professionals, regardless of their background, with an accessible and practical guide to important GIS know-how.
