Wireless Communications

Author: Andrea Goldsmith

Publisher: Cambridge University Press

ISBN: 9780521837163

Category: Computers

Page: 644

View: 5204

A comprehensive introduction to the basic principles, design techniques and analytical tools of wireless communications.

Simplified Robust Adaptive Detection and Beamforming for Wireless Communications

Author: Ayman Elnashar

Publisher: John Wiley & Sons

ISBN: 1118938240

Category: Technology & Engineering

Page: 424

View: 8340

This book presents an alternative and simplified approaches for the robust adaptive detection and beamforming in wireless communications. It adopts several systems models including DS/CDMA, OFDM/MIMO with antenna array, and general antenna arrays beamforming model. It presents and analyzes recently developed detection and beamforming algorithms with an emphasis on robustness. In addition, simplified and efficient robust adaptive detection and beamforming techniques are presented and compared with exiting techniques. Practical examples based on the above systems models are provided to exemplify the developed detectors and beamforming algorithms. Moreover, the developed techniques are implemented using MATLAB—and the relevant MATLAB scripts are provided to help the readers to develop and analyze the presented algorithms. em style="mso-bidi-font-style: normal;"Simplified Robust Adaptive Detection and Beamforming for Wireless Communications starts by introducing readers to adaptive signal processing and robust adaptive detection. It then goes on to cover Wireless Systems Models. The robust adaptive detectors and beamformers are implemented using the well-known algorithms including LMS, RLS, IQRD-RLS, RSD, BSCMA, CG, and SD. The robust detection and beamforming are derived based on the existing detectors/beamformers including MOE, PLIC, LCCMA, LCMV, MVDR, BSCMA, and MBER. The adopted cost functions include MSE, BER, CM, MV, and SINR/SNR.

OFDM for Wireless Communications Systems

Author: Ramjee Prasad

Publisher: Artech House

ISBN: 9781580537995

Category: Electronic books

Page: 272

View: 7859

Written by leading authority Ramjee Prasad, this timely new work offers a complete understanding of OFDM technology and applications in wireless communications systems, placing emphasis on wireless LANs and PANs. OFDM is a key technology for beyond 3G communications, promising robust, high capacity, high speed wireless broadband multimedia networks. In this practical resource, established and new technologies are explained clearly and comprehensively, from OFDM basics to a detailed account of a new technique, hybrid OFDM CDMA slow frequency hopping.

Mobile and Wireless Communications

IFIP TC6 / WG6.8 Working Conference on Personal Wireless Communications (PWC’2002) October 23–25, 2002, Singapore

Author: Cambyse Guy Omidyar

Publisher: Springer Science & Business Media

ISBN: 9781402072505

Category: Technology & Engineering

Page: 308

View: 2710

Mobile and Wireless Communications presents the latest developments in mobile and wireless research and the industry, with a broad range of topics including: -Ad-hoc networking; -Power control; -Personal communications; -Satellite; -QoS; -UMTS and wireless LANs; -Handoffs, security and mobility; -CDMA and physical layer including modulation and coding; -Methods of communication functions including multiple access, error control, flow control and routing. This state-of-the-art volume comprises the edited proceedings of the Working Conference on Personal Wireless Communications (PWC'2002), which was sponsored by the International Federation for Information Processing (IFIP), organized by IFIP Working Group 6.8, and held in Singapore in October 2002.

High-Altitude Platforms for Wireless Communications

Author: Alejandro Aragón-Zavala,José Luis Cuevas-Ruíz,José Antonio Delgado-Penín

Publisher: John Wiley & Sons

ISBN: 0470997427

Category: Technology & Engineering

Page: 256

View: 7744

Provides an introduction to High-Altitude Platform Stations (HAPS) technology and its applications for wireless communications High-altitude platform stations offer a promising new technology that combines the benefits of terrestrial and satellite communication systems for delivering broadband communications to users at a low cost. They are easily deployable and easy to maintain, which is why they offer a good alternative for network operators who need to find ways to get more coverage to satisfy the increasing demand for more capacity. HAPS are usually balloons, airships or unmanned aerial systems (UAS) located in the stratosphere. An enormous interest has grown worldwide to examine their use not only for broadband communications, but also for emergency services, navigation, traffic monitoring, cellular, etc. Key features include: Unique book focusing on emerging HAPS technology and its applications Provides a thorough overview of the technology including HAPS-based communications systems, antennas for HAPS, radio propagation and channel modelling issues and HAPS networking aspects Presents various HAPS-related projects and initiatives developed throughout the world (North America, Europe and Asia-Pacific) Features a comprehensive overview on both aeronautical and telecommunications regulatory aspects, which will affect the deployment and future developments in the field of HAPS High-Altitude Platform Systems for Wireless Communications will prove essential reading for postgraduate students in the field of HAPS, engineers, developers and designers involved in the design and maintenance of HAPS, aerospace engineers, and communications system planners and researchers.

Multi-Mode / Multi-Band RF Transceivers for Wireless Communications

Advanced Techniques, Architectures, and Trends

Author: Gernot Hueber,Robert Bogdan Staszewski

Publisher: John Wiley & Sons

ISBN: 9781118102206

Category: Technology & Engineering

Page: 608

View: 8404

Summarizes cutting-edge physical layer technologies formulti-mode wireless RF transceivers. Includes original contributions from distinguished researchersand professionals. Covers cutting-edge physical layer technologies for multi-modewireless RF transceivers. Contributors are all leading researchers and professionals inthis field.

Wireless Communications Circuits and Systems

Author: Yichuang Sun,Institution of Electrical Engineers

Publisher: IET

ISBN: 0852964439

Category: Computers

Page: 285

View: 5346

Wireless and mobile communications is a fast-growing area and has an enormous impact on almost every aspect of our daily lives. This book examines integrated circuits, systems and transceivers for wireless and mobile communications. It covers the most recent developments in key RF, IF, analogue, mixed-signal components and single-chip transceivers in CMOS technology, a preferred technology for system-on-chip design. The book takes a top-down approach from wireless communications systems, mobile terminals/transceivers, to constituent blocks, and systematically covers the whole range of analogue, mixed-signal, baseband, IT and RF circuits.

Multiaccess, Mobility and Teletraffic for Wireless Communications

volume 3

Author: Kin Kwong Leung,Branimir Vojcic

Publisher: Kluwer Academic Pub

ISBN: 9780792383536

Category: Technology & Engineering

Page: 325

View: 2918

To ensure proper network design and engineering, designers of wireless networks need to understand and address issues such as radio propagation, antenna, interface management, multiaccess, mobility, teletraffic, signalling and network protocols. In fact, not only do these issues need to be understood and addressed, their interdependence and interactions also deserve to be examined closely. Multiaccess, Mobility and Teletraffic for Wireless Communications: Volume 3 provides an interesting snap-shot of the current state-of-the-art approaches to dealing with the broad range of issues facing the wireless network designer. Included are papers dealing with high-speed wireless networks such as wireless ATM and GSM with high-speed data services. Some of the specific issues dealt with are radio design, interference management, resource allocation and multiaccess protocol. There are also papers dealing with the very topical problem of radio spectral efficiency and how it can be maximized. The book also offers the reader some insight into how teletraffic and performance analysis has been shown to be helpful in network design and engineering with papers presented on how these can help meet specified blocking probability, delay and other QoS requirements. Multiaccess, Mobility and Teletraffic for Wireless Communications: Volume 3 is an important book for researchers, students and professionals working in the area of wireless communication and mobile computing.

Optical and Wireless Communications

Next Generation Networks

Author: Matthew N.O. Sadiku

Publisher: CRC Press

ISBN: 9780849312786

Category: Technology & Engineering

Page: 264

View: 8585

Optical and wireless technologies are being introduced into the global communications infrastructure at an astonishing pace. Both are revolutionizing the industry and will undoubtedly dominate its future, yet in the crowded curricula in most electrical engineering programs, there is no room in typical data communications courses for proper coverage of these "next generation" technologies. Optical and Wireless Communications: Next Generation Networks covers both types of networks in a unique presentation designed for a one-semester course for senior undergraduate or graduate engineering students. Part I: Optical Networks covers optical fibers, transmitters, receivers, multiplexers, amplifiers, and specific networks, including FDDI, SONET, fiber channel, and wavelength-routed networks. Part II:Wireless Networks examines fundamental concepts and specific wireless networks, such as LAN, ATM, wireless local loop, and wireless PBXs. This section also explores cellular technologies and satellite communications. Eventually, next generation networks will be as ubiquitous as traditional telephone networks, and today's engineering students must be prepared to meet the challenges of optical and wireless systems development and deployment. Filled with illustrations, examples, and end-of-chapter problems, Optical and Wireless Communications: Next Generation Networks provides a brief but comprehensive introduction to these technologies that will help future engineers build the foundation they need for success.

RF MEMS Circuit Design for Wireless Communications

Author: Héctor J. de los Santos

Publisher: Artech House

ISBN: 9781580535571

Category: Technology & Engineering

Page: 261

View: 7712

This is the first comprehensive book to address the design of RF MEMS-based circuits for use in high performance wireless systems. A groundbreaking research and reference tool, the book enables you to understand the realm of applications of RF MEMS technology; become knowledgeable of the wide variety and performance levels of RF MEMS devices; and partition the architecture of wireless systems to achieve greater levels of performance. This innovative resource also guides you through the design process of RF MEMS-based circuits, and establishes a practical knowledge base for the design of high-yield RF MEMS-based circuits. The book features exercises and detailed case studies on working RF MEMS circuits that help you decide what approaches best fit your design constraints. This unified treatment of RF MEMS-based circuit technology opens up a new world of solutions for meeting the unique challenges of low power/portable wireless products.

Introduction to Ultra Wideband for Wireless Communications

Author: Homayoun Nikookar,Ramjee Prasad

Publisher: Springer Science & Business Media

ISBN: 9781402066337

Category: Technology & Engineering

Page: 188

View: 8119

asakta-buddhih sarvatra . jitatma vigata-sprhah . . . . naiskarmya-siddhim paramam . sannyasenadhigacchati Detached by spiritual intelligence from everything controlling the mind, without material desires, one attains the paramount perfection in cessation of re- tions by renunciation. The Bhagvad Gita (18.49) Compared to traditional carrier-based, Ultra-Wide Band (UWB), or carrier-less, systems implement new paradigms in terms of signal generation and reception. Thus, designing an UWB communication system requires the understanding of how excess bandwidth and very low transmitted powers can be used jointly to provide a reliable radio link. UWB offers systems transceiver potential for very simple implementations. Comparison between UWB and traditional narrow-band systems highlights the following features: Large bandwidth enables very fine time-space resolution for accurate lo- tion of the UWB nodes and for distributing network time stamps. Very short pulses are effectively counter-fighting the channel effect in very dense multipath environments. Data rate (number of pulses transmitted per bit) can be traded with power emission control and distance coverage. Very low power density leads to low probability of signal detection and adds security for all the layers of the communication stack. Very low power density is obtained through radio regulation emission masks; UWB systems are suitable for coexistence with already deployed narrow-band systems.

Mobile Wireless Communications

Author: Mischa Schwartz

Publisher: Cambridge University Press

ISBN: 9780521843478

Category: Computers

Page: 457

View: 3893

A 2004 introduction to digital mobile wireless networks, illustrating theoretical underpinnings with real-world examples.

Wireless Communications

Author: Prathima Agrawal,Matthew D. Andrews,Philip J. Fleming,G. George Yin,Lisa Zhang

Publisher: Springer Science & Business Media

ISBN: 9780387489452

Category: Mathematics

Page: 370

View: 6706

This volume contains papers based on invited talks given at the 2005 IMA Summer Workshop on Wireless Communications, held at the Institute for Mathematics and Its Applications, University of Minnesota, June 22 - July 1, 2005. It presents some of the highlights of the workshop, and collects papers covering a broad spectrum of important and pressing issues in wireless communications.

The Future of Wireless Communications

Author: William Webb

Publisher: Artech House

ISBN: 9781580534482

Category: Technology & Engineering

Page: 456

View: 2386

This work forecasts the changes in mobile communications over the next 20 years to help the reader make informed decisions and develop successful strategies that address the future challenges of this industry.

Multiaccess, Mobility and Teletraffic for Wireless Communications

Author: Xavier Lagrange,Bijan Jabbari

Publisher: Springer Science & Business Media

ISBN: 9781402070839

Category: Computers

Page: 352

View: 8183

Third generation networks have been specified and are now being deployed in a few countries. They are expected to reach maturity in the next several years and to provide various services including audio, video, and world wide web browsing. Furthermore, radio terminals are expected to be integrated in a number of devices such as personal computers, personal digital assistants, and even television sets. Such a wide-usage of radio mandates ongoing research to address design of networks with high capacity while providing acceptable quality of service. This volume is the sixth in the edited series Multiaccess, Mobility and Teletraffic for Wireless Communications. It presents the selected papers for the proceedings of the Seventh Workshop (MMT'2002) held on this topic in June 2002 in Rennes, France. The aim of this workshop has been to address a set of important issues of interest to the wireless communications community. In particular, the focus of this workshop is to identify, present and discuss the theoretical and implementation issues critical to the design of land based mobile cellular and microcellular as well as wireless local area networks. Included in this book are recent research results on performance analysis of wireless packet networks, channel coding and receiver design, radio resource management in third generation systems, mobility management in cellular and mobile IP networks, performance of transport protocols (TCP) over radio link control protocols, and ad-hoc networks.

Technology Trends in Wireless Communications

Author: Ramjee Prasad,Marina Ruggieri

Publisher: Artech House

ISBN: 9781580536387

Category: Technology & Engineering

Page: 310

View: 7475

Whether gaming, constant communications and connectivity, or streaming video and audio is the future killer app that keeps consumers reaching for mobile devices, you can turn to this book for the hands-on technology details you need to know to prepare yourself and your organizations for tomorrowOCOs world of wireless multimedia. The books includes in-depth discussions on the hottest topics in this area, including AAA, multiple access protocols, IPv6 and adaptive technologies. Such resource management strategies as power control, user admission techniques, and congestion control are fully explained, helping you design wireless multimedia systems that provide the required degree of quality of service by effectively utilizing limited radio resources."

TDD-CDMA for Wireless Communications

Author: Riaz Esmailzadeh,Masao Nakagawa

Publisher: Artech House

ISBN: 9781580537636

Category: Technology & Engineering

Page: 190

View: 7210

A comprehensive description of TDD-CDMA technology. It covers the important TDD-based standards, including the 3GPPs TD-CDMA for UMTS, and TD-SCDMA, the Chinese 3G standard. The authors also discuss the differences between the TDD and FDD modes of CDMA.