This invaluable reference book focuses on the air interface of mobile networks at different layers according to the OSI Reference Model. It provides an overview of several wireless communication systems as well as mobile satellite systems, followed by detailed analysis of radio resource management issues.

A comprehensive study of silicon-based distributed architectures in wideband circuits are presented in this book. Novel circuit architectures for ultra-wideband (UWB) wireless technologies are described. The book begins with an introduction of several transceiver architectures for UWB. The discussion then focuses on RF front-end of the UWB radio. Therefore, the book will be of interest to RF circuit designers and students.

Growth of wireless communications is demanding increased system capacity for mobile communications satellites - digital beamforming technology provides a promising cost-effective solution to this problem. This text discusses beamforming techniques and results, state-of-the-art supportive technologies and promising applications for wireless communications.

In order to keep larger sized cognitive networks in operation, it is necessary to have a variety of cognitive radio developments. In turn, it is important to generate organisational levels for service delivery to ensure dependable communication. Current research has helped make strides in creating and regulating the most efficient cognitive network topology which can be used in future green communications. Self-Organization and Green Applications in Cognitive Radio Networks provides recent research on the developments of efficient cognitive network topology. The most current procedures and results are presented to demonstrate how developments in this area can reduce complications, confusion, and even costs. The book also identifies future challenges that are predicted to arrive in the Cognitive Radio Network along with potential solutions. This innovative publication is unique because it suggests green, energy efficient and cost efficient resolutions to the inevitable challenges in the network.

This book presents the latest research results in the area of secure localization for both wireless mobile ad hoc networks and wireless sensor networks. It is suitable as a text for computer science courses in wireless systems and security. It includes implementation studies with mica2 mote sensors. Due to the open spectrum nature of wireless communication, it is subject to attacks and intrusions. Hence the wireless network synchronization needs to be both robust and secure. Furthermore, issues such as energy constraints and mobility make the localization process even more challenging. The book will also interest developers of secure wireless systems.

"Well informed people know it is impossible to transmit the voice over wires, and that were it possible to do so, the thing would be ofno practical value. " from an editorial in the Boston Post -1865 Fortunately for the telecommunications industry, the unknown author of the above statement turned out to be very mistaken indeed. Even as he spoke, Alexander Graham Bell was achieving the impossible, with a host of competing inventors close behind. The communications revolution which ensued has changed the way in which we live and work, and the way in which we view the world around us. Wired telephone lines now encircle the globe, allowing instantaneous transmission of voice and data. Events from Times Square to Red Square are now as accessible as events on the local courthouse lawn. The advent of wireless communications has extended Bell's revolution to another domain. Personal communications promises voice, data and images which are accessible everywhere. Although predictions are dangerous, a look back over the last decade reveals spectacular growth. In the United States alone, there are now over 50 million cordless phones in use throughout the country -at least one cordless phone for every 3 households - and nearly 20 million pocket pagers. U. S. Cellular telephone service, launched commercially in 1984, has experienced 30-40% annual growth rates despite a sluggish economy.

This book addresses propagation phenomena in satellite, radar, broadcasting, short range , trans-horizon and several recent modes of communications in radio links. Also, it includes some topics on antennas , radio noises and improvement techniques. The book provides the necessary basic matters, as well as experimental results and calculation procedures for radio link design.

This is the first book devoted to radiowave propagation over land and sea. Researchers and engineers involved in propagation studies and applications in communications, broadcasting, radar and remote sensing will find this volume invaluable.

Advances in Wireless Communications covers a broad range of topics in the field of wireless communications, with chapters describing state-of-the-art solutions along with basic theoretical studies in information and communications theory. Thus, the book offers a far-reaching panorama of this exciting field. Contributions have been grouped into six areas. Many of the topics cut across all the protocol layers. In fact, as challenging as the more standard communication theory related problems are, it is the multifaceted and multilayer system problems of wireless and mobile communications that offer the most significant opportunities for breakthroughs. Advances in Wireless Communications offers an abundance of stimulating ideas and presents state-of-the-art technologies relevant to wireless communications. This book furthers the understanding of this exciting and fast-growing field, and the material presented is useful to students and researchers in their own search for new and better solutions towards the realization of the wireless information age. The book may also be used as a text for advanced courses on the topic.

Personal and Wireless Communications: Digital Technology and Standards is devoted to providing a concise explanation of the newly emerging wireless access standards for Personal Communications Services (PCS). PCS is a new concept which will expand the horizon of wireless communications beyond the limitations of current cellular systems to provide end users with the ability to communicate with anyone, anywhere, anytime'. Because of the inherent nature of mobility, which is characteristic of personal communications, wireless communications and PCS have become inseparable concepts. In particular, PCS will critically depend on wireless technologies for the mobile-to-network access portion of the service, which is referred to as the common air interface. The topic of this book is the wireless access technology used for the common air interface in order to support PCS. Personal and Wireless Communications: Digital Technology and Standards presents clear tutorial expositions of the main digital technology elements employed for wireless access systems. The main objective is to pull together in one place all the important basic technical elements necessary in understanding wireless access systems, so that the reader can obtain an overall view of the technology quickly and systematically. The book also reviews the common air interface standards for PCS, and in doing so has two main objectives. The first is to sift out and summarize important elements of the standards, which are buried in the veritable mountain of paper comprising the standards literature, in all too many unfamiliar terms, notations, and abbreviations. The second objective is to expand, almost paradoxically, some of the more important elements to explain the intent and significance of the written words of the standards. Personal and Wireless Communications: Digital Technology and Standards will provide a quick means of obtaining a comprehensive picture of overall aspects which are important in the area. This book will be useful as a text for an advanced course on the subject.

This book fills an information gap on cognitive radios, since the discussion focuses on the implementation issues that are unique to cognitive radios and how to solve them at both the architecture and circuit levels. This is the first book to describe in detail cognitive radio systems, as well as the circuit implementation and architectures required to implement such systems. Throughout the book, requirements and constraints imposed by cognitive radio systems are emphasized when discussing the circuit implementation details. This is a valuable reference for anybody with background in analog and radio frequency (RF) integrated circuit design, needing to learn more about integrated circuits requirements and implementation for cognitive radio systems.

This book describes the state-of-the-art in RF, analog, and mixed-signal circuit design for Software Defined Radio (SDR). It synthesizes for analog/RF circuit designers the most important general design approaches to take advantage of the most recent CMOS technology, which can integrate millions of transistors, as well as several real examples from the most recent research results.

Thisbook contains revised contributions byt he speakers oft he 1s t IEEE Workshop on Wireless Communication Circuits andSystems, held in Lucerne, Switzerland, from June 22-24, 1998. The aim oft he workshop was to apply the vast expertise oft he CAS Society in the area of circuit and systemdesign to therapidly growing field of wireless communications. Theworkshop combined presentations by invited experts from academia and industry with panel and informal discussions. The following topics were covered: RFSystemInteg ration (single chip systems, CM OS RF circuits), RFFront End Circuits (CMOS RF oscillators, broadband design techniques), Wideband Conversion for Software Radio (A/D conversion issues, wideband sub sampling, low spurious A/D conversion), Process Technologies for Future RF Systems (Si, SiGe, GaAs, CMOS, packaging technologies), DSPforWireless Communications (DSP algorithms, fixed point systems, DSP for baseband applications), Blind Channel Equalization (adaptive interference suppression, design techniques, channel estimation). The workshop was a great success, with over 130 participants from 19 countries, from the U. S. to Europe and Asia, including a large contingent of participants from industry (60% ). Feedback from the participants showed that the carefully selected combination oftutorial like lectures with lectures onspecialized and advancedtopics was a feature oft he workshop that was particularly a ppreciated. Duet o therelatively strong involvemento findustry - both in theform of lecturers and listeners - a high level ofd i scussion was attained in bothpanel sessions and informal gatherings.

RF Power Amplifiers for Mobile Communications fits in the quest for fully integrated CMOS transceivers. The book tackles both high efficiency and high linearity PA design in low-voltage CMOS, and has a strong emphasis on theory, design and implementation. The book is conceived as a design guide for those actively involved in the design of CMOS wireless transceivers. RF Power Amplifiers for Mobile Communications starts from the basic theory of power amplification from the viewpoint of CMOS integration. The design of switching RF power amplifiers in CMOS is explored and CMOS PA design at low supply voltage using parallel amplification is discussed. Combining both efficiency and linearity is one of the major issues in CMOS PA design for wireless and mobile communications and is subsequently tackled. Different linearization techniques and approaches are discussed and polar modulation is clarified in greater detail.

Due to the explosive global growth in the number of mobile subscribers, as well as the growth predicted in the mobile data segment, the need for improved spectrum efficiency on the radio interface becomes more and more important. Frequency hopping (FH) is an effective method for improving the spectrum efficiency. One of the advantages of FH is that it can be combined with other spectral efficiency improving features like power control, handover and reuse partitioning. Performance Enhancements in a Frequency Hopping GSM Network covers FH and some of the additional features in detail. It begins with an in-depth description of the basic concept of FH on link level as well as on system level. Different methods have been used for analysis, such as link level simulations, network level simulations and classic tele-traffic theory. Special features of Performance Enhancements in a Frequency Hopping GSM Network Combines the practical experiences of operator and vendor with more theoretical research methods. An in-depth treatment of prevailing problems in GSM networks; Presentation of a new method, computer-aided network design (CAND), which has been developed to analyse the complex network structures of a GSM network. CAND provides the possibility for more realistic performance evaluations than conventional methods; Provides GSM-specific analysis of functionality improvements in power control, discontinuous transmission, and several handover algorithms; Explanation of the quality and capacity gains of features like the combination of FH and reuse partitioning, referred to as intelligent frequency hopping; A frequency planning method for FH GSM networks is presented. This method exploits the benefits from FH directly in the allocation process, increasing the overall frequency plan.

This book teaches the necessary knowledge and skills required by today s RF and microwave engineer in a concise, structured and systematic way. Reflecting modern developments in the field, the book focuses on active circuit design covering the latest devices and design techniques. It is an ideal textbook, containing full instructor support, for a one or two semester course on RF and microwave circuit design and analysis.

Structure: The book is uniquely structured in the form of 24 modular chapters, each covering a specific topic. The chapters are grouped into 8 broad subject areas. Each lecture is designed to be self-contained and builds on its predecessors.

Coverage: from electromagnetic and transmission line theory and S-parameters through amplifier and oscillator design including special techniques for low noise and broadband design.

Focus: The focus is on active circuit analysis and design including up to date material on MMIC design techniques.

Style: Each lecture develops the material from concept through theoretical principles to practical design methodology, supported by numerous examples.

Each chapter contains tutorial questions and problems to allow the reader to test their knowledge.

Website: contains supporting material in the form of slides and software (Matlab) listings "

Presenting a description of automated HF communications, this work also considers the many phenomena which affect HF radio, and offers insight into new and future HF techniques. It includes information on automatic link establishment (ALE) technology, advanced variable-transmission rate modems, wideband (1 MHz) HF communications services, and automated HF networks as an extension of the Internet.

An explanation of behavioural modelling of nonlinear RF and microwave devices, and a presentation of a powerful curve fitting technique that can be used to describe the behaviour and range of microwave components as a function of multiple independent variables. It features easily-understood mathematical formulae. Using the author's behavioural modelling methodology, you should be able to generate equations that provide accurate and acceptable reproductions of nonlinear RF and microwave device performance under various conditions. Specifically, you should be able to obtain more accurate representations of saturation and cut-off behaviour; develop more accurate transistor models to generate improved harmonic power output data as a function of power input ranging from small signal to heavy compression, and bias levels ranging from pinch off to maximum allowable current; gain a unified approach to amplifier and transistor characterization of compression characteristic, 1 dB compression point, saturated power output and 3rd order intercept point; and create trade spaces for optimization of sub-system design. The book covers how behavioural modelling is used for bipolar and MESFET device. The accompanying software contains formulae from the text. System requirements: PC-compatible Windows 95/98 with Excel 7.0 or higher; a 486 processor or higher; 16 MB RAM and 1.5 MB hard disk space.

This is the first book focusing on the subject of image rejection in wireless receiver design, which is crucial for the current and next generation mobile terminals. It serves as a very useful reference for wireless design engineers, researchers and students.

This broadly applicable book introduces radio system planning, emphasizing theoretical and practical details for the planning of GSM, GPRS and UMTS mobile networks. It explains the key planning parameters for these systems and describes the common tasks in radio system planning.

Wireless Personal Communications: Improving Capacity, Services and Reliability presents a broad range of topics in wireless communications, including perspectives from both industry and academia. The book serves as a reflection of current research thrusts in wireless communications, an area which continues to grow at a rapid rate as the industry strives to provide a wider range of services with greater reliability and at lower cost. Wireless Personal Communications: Improving Capacity, Services and Reliability is organized into four sections. Section I focuses on propagation and smart antennas with emphasis on measurements, modeling and simulation. Section 2 is devoted to the important subject of Code Division Multiple Access (CDMA) systems with coverage of bit error rate calculations, interference cancellation, frequency estimators and acquisition schemes. Section 3 covers networking and multiple-access issues such as mobility tracking, Markov analysis of random access protocols, and the design and development of a prototype system to access Low Earth Orbiting (LEO) satellites. Section 4 presents software radio technologies, including wideband software-definable base station technology, space-borne processing technology for mobile communications systems, filter design, universal cordless telephone transceivers using DSP, a method for predicting nonlinearities for an RF power amplifier, MAP symbol detection of CPM bursts, and unification of MLSE receivers. Wireless Personal Communications: Improving Capacity, Services and Reliability serves as an excellent reference source and may be used as a text for advanced courses on the subject.