Skip to main content

Short Range Wireless Communication

In Order to Read Online or Download Short Range Wireless Communication Full eBooks in PDF, EPUB, Tuebl and Mobi you need to create a Free account. Get any books you like and read everywhere you want. Fast Download Speed ~ Commercial & Ad Free. We cannot guarantee that every book is in the library!

Short range Wireless Communication

Short range Wireless Communication Book
Author : Alan Bensky
Publisher : Elsevier
Release : 2004-03-05
ISBN : 008047005X
Language : En, Es, Fr & De

GET BOOK

Book Description :

The Complete “Tool Kit for the Hottest Area in RF/Wireless Design! Short-range wireless—communications over distances of less than 100 meters—is the most rapidly growing segment of RF/wireless engineering. Alan Bensky is an internationally recognized expert in short-range wireless, and this new edition of his bestselling book is completely revised to cover the latest developments in this fast moving field. You’ll find coverage of such cutting-edge topics as: • architectural trends in RF/wireless integrated circuits • compatibility and conflict issues between different short-range wireless systems • “Zigbee and related new IEEE standards for short-range communications • latest U.S. and international regulatory standards for spread spectrum, ultra wideband, and other advanced communications techniques Alan Bensky also thoroughly discusses the fundamentals of radio signal propagation, communications protocols and modulation methods, information theory, antennas and transmission lines, receivers, transmitters, radio system design, and how to successfully implement a short-range wireless system. All material has been carefully updated and revised to make it as technically up-to-the-minute as possible. You’ll also find coverage of Bluetooth, “Wi-Fi and related 802.11 variants, digital modulation methods, and other essential information for planning and designing short-range wireless hardware and networks. This new edition will, like the first edition, be an invaluable reference for engineers and technical professionals who design, support, market, and maintain short-range wireless communications systems. No other book contains EVERYTHING pertaining to short-range wireless design. Covers all the hot topics like 802.11, Zigbee, Wi-Fi and Bluetooth.

Short Range Wireless Communications

Short Range Wireless Communications Book
Author : Rolf Kraemer,Marcos Katz
Publisher : Wiley
Release : 2009-03-30
ISBN : 9780470699959
Language : En, Es, Fr & De

GET BOOK

Book Description :

This unique book reviews the future developments of short-range wireless communication technologies Short-Range Wireless Communications: Emerging Technologies and Applications summarizes the outcomes of WWRF Working Group 5, highlighting the latest research results and emerging trends on short-range communications. It contains contributions from leading research groups in academia and industry on future short-range wireless communication systems, in particular 60 GHz communications, ultra-wide band (UWB) communications, UWB radio over optical fiber, and design rules for future cooperative short-range communications systems. Starting from a brief description of state-of-the-art, the authors highlight the perspectives and limits of the technologies and identify where future research work is going to be focused. Key Features: Provides an in-depth coverage of wireless technologies that are about to start an evolution from international standards to mass products, and that will influence the future of short-range communications Offers a unique and invaluable visionary overview from both industry and academia Identifies open research problems, technological challenges, emerging technologies, and fundamental limits Covers ultra-high speed short-range communication in the 60 GHz band, UWB communication, limits and challenges, cooperative aspects in short-range communication and visible light communications, and UWB radio over optical fiber This book will be of interest to research managers, R&D engineers, lecturers and graduate students within the wireless communication research community. Executive managers and communication engineers will also find this reference useful.

Short range Wireless Communication

Short range Wireless Communication Book
Author : Alan Bensky
Publisher : Newnes
Release : 2019-08-01
ISBN : 0128154063
Language : En, Es, Fr & De

GET BOOK

Book Description :

Short-range Wireless Communication, Third Edition, describes radio theory and applications for wireless communication with ranges of centimeters to hundreds of meters. Topics covered include radio wave propagation, the theory of antennas and transmission lines, architectures of transmitters, and radio system design guidelines as a function of basic communication parameters, such as sensitivity, noise and bandwidth. Topics new to this edition include MIMO, metamaterials, inductance coupling for loop antennas, very high throughput Wi-Fi specifications, Bluetooth Low Energy, expanded coverage of RFID, wireless security, location awareness, wireless sensor networks, Internet of Things, millimeter wave and optical short-range communications, body area networks, energy harvesting, and more. Engineers, programmers, technicians and sales management personnel who support short-range wireless products will find the book a comprehensive and highly readable source to boost on-the-job performance and satisfaction. Presents comprehensive, up-to-date coverage of short-range wireless technologies Provides an in-depth explanation of wave propagation and antennas Describes communication system components and specifications, including transmitters, receivers, frequency synthesizers, sensitivity, noise, distortion, and more Includes an introduction to error detection and correction

Short Range Wireless Communications

Short Range Wireless Communications Book
Author : Rolf Kraemer,Marcos Katz
Publisher : John Wiley & Sons
Release : 2009-02-05
ISBN : 9780470740132
Language : En, Es, Fr & De

GET BOOK

Book Description :

This unique book reviews the future developments of short-range wireless communication technologies Short-Range Wireless Communications: Emerging Technologies and Applications summarizes the outcomes of WWRF Working Group 5, highlighting the latest research results and emerging trends on short-range communications. It contains contributions from leading research groups in academia and industry on future short-range wireless communication systems, in particular 60 GHz communications, ultra-wide band (UWB) communications, UWB radio over optical fiber, and design rules for future cooperative short-range communications systems. Starting from a brief description of state-of-the-art, the authors highlight the perspectives and limits of the technologies and identify where future research work is going to be focused. Key Features: Provides an in-depth coverage of wireless technologies that are about to start an evolution from international standards to mass products, and that will influence the future of short-range communications Offers a unique and invaluable visionary overview from both industry and academia Identifies open research problems, technological challenges, emerging technologies, and fundamental limits Covers ultra-high speed short-range communication in the 60 GHz band, UWB communication, limits and challenges, cooperative aspects in short-range communication and visible light communications, and UWB radio over optical fiber This book will be of interest to research managers, R&D engineers, lecturers and graduate students within the wireless communication research community. Executive managers and communication engineers will also find this reference useful.

CMOS Circuits for Short Range Wireless Communication

CMOS Circuits for Short Range Wireless Communication Book
Author : Oyvind Birkenes
Publisher : Unknown
Release : 1997
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

Download CMOS Circuits for Short Range Wireless Communication book written by Oyvind Birkenes, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Reliable Communications for Short Range Wireless Systems

Reliable Communications for Short Range Wireless Systems Book
Author : Ismail Guvenc,Sinan Gezici,Zafer Sahinoglu,Ulas C. Kozat
Publisher : Cambridge University Press
Release : 2011-03-24
ISBN : 1139500376
Language : En, Es, Fr & De

GET BOOK

Book Description :

Ensuring reliable communication is an important concern in short-range wireless communication systems with stringent quality of service requirements. Key characteristics of these systems, including data rate, communication range, channel profiles, network topologies and power efficiency, are very different from those in long-range systems. This comprehensive book classifies short-range wireless technologies as high and low data rate systems. It addresses major factors affecting reliability at different layers of the protocol stack, detailing the best ways to enhance the capacity and performance of short-range wireless systems. Particular emphasis is placed on reliable channel estimation, state-of-the-art interference mitigation techniques and cooperative communications for improved reliability. The book also provides detailed coverage of related international standards including UWB, ZigBee, and 60 GHz communications. With a balanced treatment of theoretical and practical aspects of short-range wireless communications and with a focus on reliability, this is an ideal resource for practitioners and researchers in wireless communications.

Compact Antennas for Short Range Wireless Communication Applications

Compact Antennas for Short Range Wireless Communication Applications Book
Author : Chi Ho Chan
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

Download Compact Antennas for Short Range Wireless Communication Applications book written by Chi Ho Chan, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Short range Wireless Communication

  Short range Wireless Communication Book
Author : Dan Bensky
Publisher : Unknown
Release : 2020-10-28
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

The Complete "Tool Kit" for the Hottest Area in RF/Wireless Design! Short-range wireless-communications over distances of less than 100 meters-is the most rapidly growing segment of RF/wireless engineering. Alan Bensky is an internationally recognized expert in short-range wireless, and this new edition of his bestselling book is completely revised to cover the latest developments in this fast moving field. You'll find coverage of such cutting-edge topics as: . architectural trends in RF/wireless integrated circuits . compatibility and conflict issues between different short-range wireless systems . "Zigbee" and related new IEEE standards for short-range communications . latest U.S. and international regulatory standards for spread spectrum, ultra wideband, and other advanced communications techniques Alan Bensky also thoroughly discusses the fundamentals of radio signal propagation, communications protocols and modulation methods, information theory, antennas and transmission lines, receivers, transmitters, radio system design, and how to successfully implement a short-range wireless system. All material has been carefully updated and revised to make it as technically up-to-the-minute as possible. The accompanying CD includes Mathcad worksheets to greatly simplify common design tasks and calculations. You'll also find coverage of Bluetooth, "Wi-Fi" and related 802.11 variants, digital modulation methods, and other essential information for planning and designing short-range wireless hardware and networks. This new edition will, like the first edition, be an invaluable reference for engineers and technical professionals who design, support, market, and maintain short-range wireless communications systems. * No other book contains EVERYTHING pertaining to short-range wireless design. * Covers all the hot topics like 802.11, Zigbee, Wi-Fi and Bluetooth. * Valuable CD-Rom included that will simplify the design process.

Wireless Networking Know It All

Wireless Networking  Know It All Book
Author : Praphul Chandra,Daniel M. Dobkin,Dan Bensky,Ron Olexa,David Lide,Farid Dowla
Publisher : Elsevier
Release : 2007-09-14
ISBN : 0080552013
Language : En, Es, Fr & De

GET BOOK

Book Description :

The Newnes Know It All Series takes the best of what our authors have written to create hard-working desk references that will be an engineer's first port of call for key information, design techniques and rules of thumb. Guaranteed not to gather dust on a shelf! Wireless Networking: Know It All delivers readers from the basics of a wireless system such as antennas and transmitters to current hot topic wireless systems and technologies. The backbone to technologies and applications such as mobile, untethered Internet access, Internet telephony, and high quality multimedia content via the Web is completely covered in this reference. Chapter 1. Basics of Wireless Communications Chapter 2. Basics of Wireless Local Area Networks Chapter 3. Radio Transmitters and Receivers Chapter 4. Radio Propagation Chapter 5. Antennas and Transmission Lines Chapter 6. Communication Protocols and Modulation Chapter 7. High-Speed Wireless Data: System Types, Standards-Based and Proprietary Solutions Chapter 8. Propagation Modeling and Measuring Chapter 9. Indoor Networks Chapter 10. Security in Wireless Local Area Networks Chapter 11. Voice Over Wi-Fi and Other Wireless Technologies Chapter 12. Mobile Ad Hoc Networks Chapter 13. Wireless Sensor Networks Chapter 14. Reliable Wireless Networks for Industrial Applications Chapter 15. Applications and Technologies Chapter 16. System Planning *A comprehensive overview from best-selling authors including Daniel Dobkin, Ron Olexa, and Alan Bensky *Explains the theory, concepts, design, and implementation of 802.11, 802.16, and 802.20 wireless networks – the three most popular types *Includes discussion of indoor networks, signal propagation, network security, and other topics essential for designing robust, secure wireless networks

Short Range Wireless Communication

Short Range Wireless Communication Book
Author : Jiwoong Park
Publisher : Unknown
Release : 2019
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

This dissertation presents energy-efficient schemes for short-range wireless communication for wearable devices. Generally, there are two types of wireless scenarios that happen around the human body. The first case is the data transfer between the wearable devices and the local hub devices, e.g., smartphones and smartwatches, allowing to connect to the external network and centrally control multiple wearable devices. Many researchers had proposed various wireless approaches for this scenario; however, there are still limitations in realistic implementations such as restricted form factors and limited energy sources of wearable devices. To address the barriers and challenges of the previously proposed schemes, my doctoral research introduced a new data transmission concept around the human body using magnetic fields, showing the theoretical background and experimental results that validate that the human body acts as a leaky dielectric waveguide. To demonstrate that the proposed concept can be implemented in the practical application, e.g., Hi-Fi audio streaming for portable headphones, this dissertation describes the design procedure and its measurement results of an energy-efficient ultra-low-power transceiver fabricated with CMOS technology. The other wireless scenario occurs in a single wearable device, especially a body sensor device. For the practical reasons of accurate health monitoring, the body sensor device needs to be implanted or injected inside the human body, and it should operate in a fully-wireless environment for the portability of the wearable devices. This work presents guidelines for the design and optimization of on-chip coils used for wireless millimeter-scale integrated neural implants as an example of this wireless scenario. Since available real estate of a silicon chip is limited, on-chip coil design involves difficult managing multi-dimension trade-offs amongst the number of turns, trace width and spacing, proximity to other active circuits and metalization, quality factor, matching network performance/size, and load impedance conditions, all towards achieving high data/power transfer efficiency.

Ultra Low Power and Ultra Low Cost Short Range Wireless Receivers in Nanoscale CMOS

Ultra Low Power and Ultra Low Cost Short Range Wireless Receivers in Nanoscale CMOS Book
Author : Zhicheng Lin,Pui-In Mak (Elvis),Rui Paulo Martins
Publisher : Springer
Release : 2015-07-25
ISBN : 3319215248
Language : En, Es, Fr & De

GET BOOK

Book Description :

This book provides readers with a state-of-the-art description of techniques to be used for ultra-low-power (ULP) and ultra-low-cost (ULC), short-range wireless receivers. Readers will learn what is required to deploy these receivers in short-range wireless sensor networks, which are proliferating widely to serve the internet of things (IoT) for “smart cities.” The authors address key challenges involved with the technology and the typical tradeoffs between ULP and ULC. Three design examples with advanced circuit techniques are described in order to address these trade-offs, which special focus on cost minimization. These three techniques enable respectively, cascading of radio frequency (RF) and baseband (BB) circuits under an ultra-low-voltage (ULV) supply, cascading of RF and BB circuits in current domain for current reuse and a novel function-reuse receiver architecture, suitable for ULV and multi-band ULP applications such as the sub-GHz ZigBee.

RF Wireless Technologies

RF   Wireless Technologies Book
Author : Bruce Alan Fette
Publisher : Newnes
Release : 2008
ISBN : 0750685816
Language : En, Es, Fr & De

GET BOOK

Book Description :

The Newnes Know It All Series takes the best of what our authors have written to create hard-working desk references that will be an engineer's first port of call for key information, design techniques and rules of thumb. Guaranteed not to gather dust on a shelf! RF (radio frequency) and wireless technologies drive communication today. This technology and its applications enable wireless phones, portable device roaming, and short-range industrial and commercial application communication such as the supply chain management wonder, RFID. Up-to-date information regarding software defined RF, using frequencies smarter, and, using more of the spectrum, with ultrawideband technology is detailed. Chapter 1: Survey of RF and Wireless Technology Chapter 2: Communications Protocols and Modulation Chapter 3: Transmitters Chapter 4: Receivers Chapter 5: Radio Propagation Chapter 6: Antenna Fundamentals I Chapter 7: Antenna Fundamentals II. Chapter 8: Basics of Wireless Local Area Networks Chapter 9: Outdoor Networks. Chapter 10: Voice Over Wi-Fi and Other Wireless Technologies Chapter 11: Security in Wireless Local Area Networks Chapter 12: System Planning Chapter 13: System Implementation, Testing, and Optimization Chapter 14: Next Generation Wireless Networks Chapter 15: Mobile Ad Hoc Networks Chapter 16: Wireless Sensor Networks Chapter 17: Reliable Wireless Networks for Industrial Networks Chapter 18: Software-Defined Radio Chapter 19: The Basics of Radio Frequency Identification (RFID) Technology Chapter 20: UWB Spectrum and Regulation Chapter 21: Interference and Coexistence Chapter 22: Direct Sequence UWB Chapter 23: “Multiband Approach to UWB Chapter 24: History and Background of Cognitive Radio Chapter 25: The Software Defined Radio as a Platform for Cognitive Radio Chapter 26: Cognitive Radio: The Technologies Chapter 27: Spectrum Awareness Chapter 28: Direct Sequence and Frequency Hopping Spread Spectrum Chapter 29: RF Power Amplifiers Chapter 30: Phase Locked Loop Techniques in Modern Communications Systems Chapter 31 Orthogonal Frequency Division Multiplexing (OFDM) *A 360 degree view from best-selling authors including Roberto Aiello, Bruce Fette, and Praphul Chandra *Hot topics covered including ultrawideband and cognitive radio technologies *The ultimate hard-working desk reference: all the essential information, techniques, and tricks of the trade in one volume

Ultra Wideband Wireless Communications and Networks

Ultra Wideband Wireless Communications and Networks Book
Author : Xuemin Shen,Mohsen Guizani,Robert Caiming Qiu,Tho Le-Ngoc
Publisher : John Wiley & Sons
Release : 2007-01-11
ISBN : 0470028513
Language : En, Es, Fr & De

GET BOOK

Book Description :

Learn about Ultra-wideband (UWB) transmission - the most talked about application in wireless communications. UWB wireless communication is a revolutionary technology for transmitting large amounts of digital data over a wide spectrum of frequency bands with very low power for a short distance. This exciting new text covers the fundamental aspects of UWB wireless communications systems for short-range communications. It also focuses on more advanced information about networks and applications. Chapters include: Radio Propagation and Large Scale Variations, Pulse Propagation and Channel Modelling, MIMO (Multiple Input, Multiple Output) RF Subsystems and Ad Hoc Networks. Focuses on UWB wireless communications rather than UWB radar, which has been covered before. Provides long and short-term academic and technological value. Teaches readers the fundamentals, challenges and up-to-date technical processes in this field.

Emerging Wireless Communication and Network Technologies

Emerging Wireless Communication and Network Technologies Book
Author : Karm Veer Arya,Robin Singh Bhadoria,Narendra S. Chaudhari
Publisher : Springer
Release : 2018-06-09
ISBN : 9811303967
Language : En, Es, Fr & De

GET BOOK

Book Description :

The book covers a wide range of wireless communication and network technologies, and will help readers understand the role of wireless technologies in applications touching on various spheres of human life, e.g. healthcare, agriculture, building smart cities, forecasting and the manufacturing industry. The book begins by discussing advances in wireless communication, including emerging trends and research directions for network technologies. It also highlights the importance of and need to actively develop these technologies. In turn, the book addresses different algorithms and methodologies which could be beneficial in implementing 5G Mobile Communication, Vehicular Ad-hoc Networks (VANET), Reliable Cooperative Networks, Delay Tolerant Networks (DTN) and many more contexts related to advanced communications. It then addresses the prominence of wireless communication in connection with the Internet of Things (IoT), Mobile Opportunistic Networks and Cognitive Radio Networks (CRN). Lastly, it presents the new horizons in architecture and building protocols for Li-Fi (Light-Fidelity) and Wearable Sensor Technology.

OFDM for Wireless Communications Systems

OFDM for Wireless Communications Systems Book
Author : Ramjee Prasad
Publisher : Artech House
Release : 2004
ISBN : 9781580537995
Language : En, Es, Fr & De

GET BOOK

Book Description :

Annotation Written by a leading authority, this timely new work offers today's wireless professionals a complete understanding of OFDM technology and applications in wireless communications systems, placing emphasis on wireless LANs (local area networks) and PANs (personal area networks).

Advances in Mobile and Wireless Communications

Advances in Mobile and Wireless Communications Book
Author : István Frigyes,Janos Bito,Péter Bakki
Publisher : Springer Science & Business Media
Release : 2008-05-31
ISBN : 3540790411
Language : En, Es, Fr & De

GET BOOK

Book Description :

Lectori Salutem! This is another book – among the myriads – dealing with wireless communications. The reader might be aware: this topic is really among bestsellers in technology – bestsellers in technology itself and that in technical literature. Communications is one of the leading techniques in information society and mobile/wireless communications is one among the (maybe not more than two with optics the second) leading techniques in communications. Development of wireless communications was and is really spec- cular in the last decade of the 20th and first decade of the 21st century. Such topics as MIMO, wireless networking, security in the technological field, new business models in the service providing field, various applications in the users’ side, to mention a few only, were undergoing an unprecedented evolution. So it is not surprising that the number of conferences and the number of books in this field grows and grows, in a nearly unbounded way.

Technologies for the Wireless Future

Technologies for the Wireless Future Book
Author : Rahim Tafazolli
Publisher : John Wiley & Sons
Release : 2006-05-01
ISBN : 0470030445
Language : En, Es, Fr & De

GET BOOK

Book Description :

This fully updated second volume of the highly successful WWRF Book of Visions is a unique and timely book, presenting up-to-the-minute ideas and trends in mobile communications. This is a comprehensive single point of reference, focusing on the specifications and requirements of 4G and identifying potential business models, the research areas and required spectrum and enabling technologies. Comprising material from White Papers edited within the working expert groups as well as those from the Vision Committee of WWRF, a top-down approach has been adopted starting from perceived users requirements and their expectations in the Future Wireless World.

Technologies for the Wireless Future

Technologies for the Wireless Future Book
Author : Rahim Tafazolli
Publisher : Wiley
Release : 2004-12-10
ISBN : 9780470012352
Language : En, Es, Fr & De

GET BOOK

Book Description :

See the future through the vision of the Wireless World Research Forum. Technologies for the Wireless Future, the result of pioneering cooperative work of many academic and industrial researchers from WWRF, provides a wide picture of the research challenges for the future wireless world. Despite much emphasis on hard technology, the user is certainly not forgotten as this book provides an all-encompassing treatment of future wireless technologies ranging from user centred design processes and I-centric communications to end-to-end econfigurability and short-range wireless networks. The content will have a wide-ranging appeal to engineers, researchers, managers and students with interest on future of wireless. "An important publication that highlights the significance of WWRF to the wireless industry. Rarely has one publication covered the whole spectrum of future wireless technologies from human sciences to radio interface technologies, highlighting the research work done both in academic and the business worlds." Tero Ojanperä, Senior Vice President, Head of Nokia Research Center "Provides an excellent overview about the future development of mobile and wireless communication. Starting from a user centric approach and the service infrastructure, a reference model and roadmaps are being built up. This book presents useful and necessary information to all, who are involved in research and development, strategy and standardisation activities towards future systems." Anton Schaaf, CTO and Member of the executive board Siemens COM "The WWRF should be commended for taking an approach that defines technology requirements from a user perspective. This publication makes an important contribution to defining the technologies that will be most relevant to future wireless communications." Padmasree Warrior, Senior Vice President, Chief Technology Officer Motorola

Mobile and Wireless Communication Networks

Mobile and Wireless Communication Networks Book
Author : Guy Pujolle
Publisher : Springer
Release : 2006-11-30
ISBN : 0387347364
Language : En, Es, Fr & De

GET BOOK

Book Description :

This volume presents proceedings from the 19th IFIP World Computer Congress in Santiago, Chile. The proceedings of the World Computer Congress are a product of the gathering of 2,000 delegates from more than 70 countries to discuss a myriad of topics in the ICT domain. Of particular note, this marks the first time that a World Computer Congress has been held in a Latin American country. Topics in this series include: - The 4th International Conference on Theoretical Computer Science - Education for the 21st Century- Impact of ICT and Digital Resources - Mobile and Wireless Communication Networks - Ad-Hoc Networking - Network Control and Engineering for QoS, Security, and Mobility - The Past and Future of Information Systems: 1976-2006 and Beyond - History of Computing and Education - Biologically Inspired Cooperative Computing - Artificial Intelligence in Theory and Practice - Applications in Artificial Intelligence - Advanced Software Engineering: Expanding the Frontiers of Software

Technologies for the Wireless Future

Technologies for the Wireless Future Book
Author : Wireless World Research Forum
Publisher : John Wiley & Sons Incorporated
Release : 2005
ISBN : 0987650XXX
Language : En, Es, Fr & De

GET BOOK

Book Description :

See the future through the vision of the Wireless World Research Forum. Technologies for the Wireless Future, the result of pioneering cooperative work of many academic and industrial researchers from WWRF, provides a wide picture of the research challenges for the future wireless world. Despite much emphasis on hard technology, the user is certainly not forgotten as this book provides an all-encompassing treatment of future wireless technologies ranging from user centred design processes and I-centric communications to end-to-end econfigurability and short-range wireless networks. The content will have a wide-ranging appeal to engineers, researchers, managers and students with interest on future of wireless. An important publication that highlights the significance of WWRF to the wireless industry. Rarely has one publication covered the whole spectrum of future wireless technologies from human sciences to radio interface technologies, highlighting the research work done both in academic and the business worlds. Tero Ojanperä, Senior Vice President, Head of Nokia Research Center Provides an excellent overview about the future development of mobile and wireless communication. Starting from a user centric approach and the service infrastructure, a reference model and roadmaps are being built up. This book presents useful and necessary information to all, who are involved in research and development, strategy and standardisation activities towards future systems. Anton Schaaf, CTO and Member of the executive board Siemens COM The WWRF should be commended for taking an approach that defines technology requirements from a user perspective. This publication makes an important contribution to defining the technologies that will be most relevant to future wireless communications. Padmasree Warrior, Senior Vice President, Chief Technology Officer Motorola