Wireless Internet: April 2009Wireless Internet

Thursday, April 16, 2009

TCP/IP Network Model

Transport Layer
The Transport layer uses TCP and UDP.
TCP provides a reliable virtual circuit (connection-oriented) for
application processes. Connection-oriented means that a connection
must be established between systems before they can exchange data.
Furthermore, TCP uses acknowledgments between systems to ensure
data delivery.
UDP is a connectionless protocol for application processes. It is faster
than TCP for certain applications since it does not require setting up a
connection and handling acknowledgments. It is also known as a
stateless protocol because systems using UDP to exchange data have no
indication of the operational status of one another.
Figure 1-6 compares the Transport layer of the TCP/IP model to the
Transport layer of the ISO/OSI reference model.

Monday, April 13, 2009

Mobile WiMAX: Toward Broadband Wireless Metropolitan Area Networks

The first part focuses on radio frequency (RF), signal processing, multiple in-multiple out (MIMO) technology, and identifying challenges and possible solutions in the physical layer. An examination of protocol issues follows, including those involving medium access control (MAC), quality of service (QoS) in point-to-multi-point (PMP) and mesh networks, cross layer optimization, mobility management, handoff in heterogeneous networks, energy management, and link adaptation mechanisms. The final part considers issues regarding security, economy, and system capacity in the WiMAX. Mobile WiMAX: Toward Broadband Wireless Metropolitan Area Networks is an important resource for those interested in understanding all aspects relevant to the technical, practical, economic, and policy issues concerning WirelessMANs. It offers comprehensive practical and technical guidance on the fundamentals and recent advances in general WirelessMAN, as well as the latest standard specifications in IEEE 802.16a/c/d/e families.
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Small Antenna Design

As wireless devices and systems get both smaller and more ubiquitous, the demand for effective but small antennas is rapidly increasing. This book will describe the theory behind effective small antenna design and give design techniques and examples for small antennas for different operating frequencies. Design techniques are given for the entire radio spectrum, from a very hundred kilohertz to the gigahertz range. Unlike other antenna books which are heavily mathematical and theoretical, Douglas Miron keeps mathematics to the absolute minimum required to explain design techniques. Ground planes, essential for operation of many antenna designs, are extensively discussed. The book will also include a CD-ROM with design software that will greatly simplify readers’ daily design tasks.
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Security and Quality of Service in Ad Hoc Wireless Networks

QoS in relation to ad hoc networks is covered in detail, with specific attention to routing, QoS support in unicast communication, and recent developments in the area. Secure routing, intrusion detection, security in WiMax networks and trust management are also covered, the latter being based on principles and practice of key management and authentication in distributed networks. Representing the state-of-the-art in ad hoc wireless network security, this book is a valuable resource for researchers in electrical and computer engineering, as well as practitioners in the wireless communications industry.
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Unlicensed Mobile Access Technology: Protocols, Architectures, Security, Standards and Applications

this book provides a complete cross-reference source for UMA technology and UMA-relevant technologies. Presenting a fundamental introduction with definitions of concepts, explanations of protocols and emerging standards, as well as detailed discussions of applications, it covers important topics such as system/network architecture, capacity, mobility management, vertical handoff, and routing.
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IP Multicast with Applications to IPTV and Mobile DVB-H

After an introduction that gets readers up to speed on the basics, IP Multicast with Applications to IPTV and Mobile DVB-H:

Discusses multicast addressing for payload and payload forwarding

Covers routing in a variety of protocols, including PIM-SM, CBT, PIM-DM, DVMRP, and MOSPF

Discusses multicasting in IPv6 environments and Multicast Listener Discovery (MLD)

Features examples of IP Multicast applications in the IPTV and mobile DVB-H environments

Includes reference RFCs and protocols placed in the proper context of a commercial-grade infrastructure for the delivery of robust, entertainment-quality linear and nonlinear video programming

This is a concise, compact reference for practitioners who seek a quick, practical review of the topic with an emphasis on the major and most often used aspects of the technology. It serves as a hands-on resource for engineers in the communications industry or Internet design, content providers, and researchers. It’s also an excellent text for college courses on IP Multicast and/or IPTV.
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source: Amazon.com

Wireless Internet Telecommunications

Internet and wireless technologies are converging towards an exciting future that we’ve only begun to realize. For professionals who have a background in the Internet or in mobile telephony - but not in both - this integrated “how it works” guide offers a practical understanding of wireless Internet communications, the technology components involved, and how they fit and work together. It provides a unified picture of important protocols for multimedia transport and session control, and explains what’s being done to tackle tough challenges in QoS control, mobility management, and security in the wireless environment. With enhancements to the next generation of the Internet protocol expected to provide greater support for wireless IP networks, the next Internet revolution may be just around the corner. This book provides professionals with what they need to know about the techniques and architectures that will get us there.
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source: Amazon.com

Algorithms and Protocols for Wireless Sensor Networks

Divided into nineteen succinct chapters, the book covers: mobility management and resource allocation algorithms; communication models; energy and power consumption algorithms; performance modeling and simulation;

authentication and reputation mechanisms; algorithms for wireless sensor and mesh networks; and algorithm methods for pervasive and ubiquitous computing; among other topics.

Complete with a set of challenging exercises, this book is a valuable resource for electrical engineers, computer engineers, network engineers, and computer science specialists. Useful for instructors and students alike, Algorithms and Protocols for Wireless Sensor Networks is an ideal textbook for advanced undergraduate and graduate courses in computer science, electrical engineering,and network engineering.
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IP Multimedia Subsystem (IMS) Handbook

To provide researchers and technicians with the tools they need to optimize their role in this communication revolution, the IP Multimedia Subsystem (IMS) Handbookpresents all the technical aspects of the IMS needed to support the growth of digital traffic and the implementation of underlying networks. This guide covers everything from basic concepts to research-grade material, including the future direction of the architecture. Organized in three sections, the book brings together the technical savvy of 50 pioneering experts from around the world, providing complete coverage of relevant concepts, technologies, and services.

Learn How IMS Will Speed Innovation

Filling the gap between existing traditional telecommunications and Internet technologies, IMS has led to an environment in which new services and concepts are introduced more quickly than ever before, such as reusable service components and real-time integration. The technology promises to be a cost-effective evolutionary path to future wireless and wireline convergences that will meet next-generation service requirements.
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Map-based Mobile Services: Design, Interaction and Usability

In contrast to geocentric maps that remain up-to-date for a relatively long period and aim at communicating geoinformation in a balanced way to diverse users, egocentric maps are intended for short-term usage and individual users. There is an increasing awareness of egocentric map design for mobile applications - a phenomenon resulted from the rapid technical progresses and the growing demand on personalised geoservices. Some design patterns of egocentric maps in stationary cartographic systems are reusable and adaptable to mobile usage context, with the immediate usability being the essential constraint drawing together the research challenges involved in the design process.
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Advances in Digital Speech Transmission

The book provides an up-to-date overview of the field, including topics such as speech coding in heterogeneous communication networks, wideband coding, and the quality assessment of wideband speech.

Provides an insight into the latest developments in speech processing and speech transmission, making it an essential reference to those working in these fields

Offers a balanced overview of technology and applications

Discusses topics such as speech coding in heterogeneous communications networks, wideband coding, and the quality assessment of the wideband speech

Explains speech signal processing in hearing instruments and man-machine interfaces from applications point of view

Covers speech coding for Voice over IP, blind source separation, digital hearing aids and speech processing for automatic speech recognition

Advances in Digital Speech Transmission serves as an essential link between the basics and the type of technology and applications (prospective) engineers work on in industry labs and academia. The book will also be of interest to advanced students, researchers, and other professionals who need to brush up their knowledge in this field.
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Broadband Circuits for Optical Fiber Communication

Essential background on optical fiber, photodetectors, lasers, modulators, and receiver theory is presented to help readers understand the system environment in which these broadband circuits operate. For each circuit type, the main specifications and their impact on system performance are explained and illustrated with numerical values. Next, the circuit concepts are discussed and illustrated with practical implementations. A broad range of circuits in MESFET, HFET, BJT, HBT, BiCMOS, and CMOS technologies is covered. Emphasis is on circuits for digital, continuous-mode transmission in the 2.5 to 40 Gb/s range, typically used in SONET, SDH, and Gigabit Ethernet applications. Burst-mode circuits for passive optical networks (PON) and analog circuits for hybrid fiber-coax (HFC) cable-TV applications also are discussed.

Learning aids are provided throughout the text to help readers grasp and apply difficult concepts and techniques, including:
* Chapter summaries that highlight the key points
* Problem-and-answer sections to help readers apply their new knowledge
* Research directions that point to exciting new technological breakthroughs on the horizon
* Product examples that show the performance of actual broadband circuits
* Appendices that cover eye diagrams, differential circuits, S parameters, transistors, and technologies
* A bibliography that leads readers to more complete and in-depth treatment of specialized topics

This is a superior learning tool for upper-level undergraduates and graduate-level students in circuit design and optical fiber communication. Unlike other texts that concentrate on analog circuits in general or mostly on optics, this text provides balanced coverage of electronic, optic, and system issues. Professionals in the fiber optic industry will find it an excellent reference, incorporating the latest technology and discoveries in the industry.
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RF and Microwave Transistor Oscillator Design

This book presents up to date information on all aspects of oscillator design, enabling a selection of the best oscillator topologies with optimized noise reduction and electrical performance. RF and Microwave Transistor Oscillator Design covers:
analyses of non-linear circuit design methods including spectral-domain analysis, time-domain analysis and the quasilinear method;
information on noise in oscillators including chapters on varactor and oscillator frequency tuning, CMOS voltage-controlled oscillators and wideband voltage-controlled oscillators;
information on the stability of oscillations, with discussions on the stability of multi-resonant circuits and the phase plane method;
optimized design and circuit techniques, beginning with the empirical and analytic design approaches, moving on to the high-efficiency design technique;
general operation and design principles of oscillators, including a section on the historical aspects of oscillator configurations.

A valuable reference for practising RF and Microwave designers and engineers, RF and Microwave Transistor Oscillator Design is also useful for lecturers, advanced students and research and design (R&D) personnel.
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Mobile Database Systems

Following an introductory chapter that includes important milestones in the history and development of mobile data processing, the text provides the information, tools, and resources needed for MDS management, including:
Fundamentals of wireless communication
Location and handoff management
Fundamentals of conventional database management systems and why existing approaches are not adequate for mobile databases
Concurrency control mechanism schemes
Data processing and mobility
Management of transactions
Mobile database recovery schemes
Data dissemination via wireless channels

Case studies and examples are used liberally to aid in the understanding and visualization of complex concepts. Various exercises enable readers to test their grasp of each topic before advancing in the text. Each chapter also concludes with a summary of key concepts as well as references for further study
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Bandwidth Extension of Speech Signals

Bandwidth Extension of Speech Signals describes the theory and methods for quality enhancement of clean speech signals and distorted speech signals such as those that have undergone a band limitation, for instance, in a telephone network. Problems and the respective solutions are discussed for the different approaches. The different approaches are evaluated and a real-time implementation of the most promising approach is presented. The book includes topics related to speech coding, pattern- / speech recognition, speech enhancement, statistics and digital signal processing in general.
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Fixed Broadband Wireless System Design

The book is a comprehensive presentation of the engineering principles, advanced engineering techniques, and practical design methods for planning and deploying fixed wireless systems, including:
Point-to-point LOS and NLOS network design
Point-to-point microwave link design including active and passive repeaters
Consecutive point and mesh network planning
Advanced empirical and physical propagation modeling including ray-tracing
Detailed microwave fading models for multipath and rain
NLOS (indoor and outdoor) propagation and fading models
Propagation environment models including terrain, morphology, buildings, and atmospheric effects
Novel mixed application packet traffic modeling for dimensioning network capacity
Narrow beam, wide beam, and adaptive (smart) antennas
MIMO systems and space-time coding
Channel planning including fixed and dynamic channel assignment and dynamic packet assignment
IEEE 802.11b and 802.11a (WLAN) system design
Free space optic (FSO) link design

At present, there are no titles available that provide such a concise presentation of the wide variety of systems, frequency bands, multiple access techniques, and other factors that distinguish fixed wireless systems from mobile wireless systems. Fixed Broadband Wireless System Design is essential reading for design, system and RF engineers involved in the design and deployment of fixed broadband wireless systems, fixed wireless equipment vendors, and academics and postgraduate students in the field.
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Fourier Analysis on Finite Groups with Applications in Signal Processing and System Design

“…a concise monograph about the algebraic structures theory used in the Fourier analysis of signals and systems…useful for applied mathematicians and for engineers…” (Computing Reviews.com, November 3, 2005)

The book examines aspects of Fourier analysis on finite non-Abelian groups and discusses different methods used to determine compact representations for discrete functions providing for their efficient realizations and related applications. Switching functions are included as an example of discrete functions in engineering practice. Additionally, consideration is given to the polynomial expressions and decision diagrams defined in terms of Fourier transform on finite non-Abelian groups.
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RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification

RFID (Radio Frequency Identification) is used in all areas of automatic data capture allowing contactless identification of objects using RF. With applications ranging from secure internet payment systems to industrial automation and access control, RFID technology solutions are receiving much attention in the research and development departments of large corporations. RFID is a major growth are in auto ID, allowing emergency vehicles to safely trip traffic signals, and providing the technology behind contactless smart cards, “autopiloting” cars, and production automation. Fully revised and updated to include all the latest information on industry standards and applications, this new edition provides a standard reference for people working with RFID technology. Expanded sections explain exactly how RFID systems work, and provide up-to-date information on the development of new tags such as the smart label.
Updated coverage of RFID technologies, including electron data carrier architecture and common algorithms for anticollision
Details the latest RFID applications, such as the smartlabel, e-commerce and the electronic purse, document tracking and e-ticketing
Detailed appendix providing up-to-date information on relevant ISO standards and regulations, including descriptions of ISO 14443 for contactless ticketing and ISO 15693 covering the smartlabel

A leading edge reference for this rapidly evolving technology, this text is of interest to practitioners in auto ID and IT designing RFID products and end-users of RFID technology, computer and electronics engineers in security system development and microchip designers, automation, industrial and transport engineers and materials handling specialists. Also a valuable resource for graduate level students in electronics and industrial engineering design.
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GSM - Architecture, Protocols and Services

With around 3 billion subscribers, GSM is the world’s most commonly used technology for wireless communication. Providing an overview of the innovations that have fuelled this phenomena, GSM: Architecture, Protocols and Services, Third Edition offers a clear introduction to the field of cellular systems. Special emphasis is placed on system architecture and protocol aspects, and topics range from addressing concepts through mobility management to network management.

This third edition contains around 25% new and reworked material and has been thoroughly updated to encompass recent advances and future trends. It serves as both an introductory textbook for graduate students as well as a reference resource for telecommunications engineers and researchers.

This edition:
Presents capacity enhancement methods like sectorization, the application of adaptive antennas for Spatial Filtering for Interference Reduction (SFIR) and Space Division Multiple Access (SDMA)
Provides a detailed introduction to GPRS, HSCSD, and EDGE for packet-switched services and higher data rates
Features updated coverage on the vastly expanded range of GSM services, including an examination of Multimedia Messaging Service (MMS)
Adopts a highly graphical approach with numerous illustrations
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Real-Time Digital Signal Processing: Implementations and Applications

Focuses on effective software development process from algorithm design and validation, to floating-point evaluation, fixed-point simulation, C55xx intrinsics, and code optimization with efficient assembly language implementation.
Describes widely used DSP applications such as DTMF generation and detection, echo cancellation, noise reduction, speech coding, channel coding, audio processing, and image processing.
Introduces Texas Instrument’s Code Composer Studio, and C5510 DSK hardware for DSP application development, evaluation, debugging and testing.
Examines the design and analysis of DSP algorithms using MATLAB Graphic User Interface (GUI) tools.
Tests and evaluates the DSP applications using MATLAB Link for CCS tools with C5510 DSK hardware.
Includes an accompanying CD with many MATLAB examples, C and C55xx programs for hands-on DSP experiments.

This book is a valuable, leading-edge resource for electrical and computer engineering students taking courses in digital signal processing who need up-to-date information on the technology. It is also a useful reference for practising engineers and researchers involved in the creation of real-time DSP applications.
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Illustrator CS Most Wanted: Techniques and Effects

If you're looking for a book to teach you some of the most useful techniques in Adobe Illustrator CS, your search is over.

If you're looking for exercises that make learning about Illustrator CS more fun, look no further. Most of all, if you're looking for a book to empower you to create illustrations that are worth bragging about, you've found it!

Illustrator CS Most Wanted: Techniques and Effects responds to the demands of a growing group of illustrators who want to take their skills to the next level.

In this book, you'll learn how to do the following:

* Create stunning 3D illustrations using Illustrator CSกฏs new 3D effects.
* Expand your drawing abilities and learn how to make use of Illustratorกฏs various path tools to do the work for you.
* Transform a photograph into a stylized vector illustration.
* Master transparency techniques that will give your illustrations a lifelike appearance.
* Fade, transform, and blend artwork like never before using opacity masks and the powerful Blend tool.
* Use Illustrator to create retro-styled artwork.
* Produce cartoon, game, and animation effects that can be used with various animation programs.
* Explore the huge library of preset artwork Adobe has included with Illustrator CS and see how it can save you time and provide you with endless inspiration.
* Design illustrations that are worth bragging about.
* Utilize the downladable creative and inspirational source files (even the fonts are included!)

for every exercise so you can work at your own pace and never be left without the final illustration.
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Mastering Digital Photography

Get ready to go from digital picture taker to digital photographer! "Mastering Digital Photography, Second Edition" shows youhow to take your digital photography to the next level using the simple tools and techniques that separate the amateurs from the pros.

Achieve pixel proficiency as you learn what your digital camera?s controls mean to your photographs as well as the creative techniques that allow you to capture the ideal image digitally.

Discover both the technical side of digital photography?why so many options, features, and formats exist and how to use them to improve your pictures?

as well as the professional techniques that anyone can use to take better action photos, portraits, scenic shots, close-ups, and more.

"Mastering Digital Photography, Second Edition" gives you everything you need to take professional-quality photographs with your digital camera.

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Idea to Image in Photoshop CS2

Idea to Image in Photoshop CS2: Rick Sammon's Guide to Enhancing Your Digital Photographs

From "America's Most Popular Photo Expert" comes this beautiful book on working and playing with the Photoshop digital darkroom.

World-famous, award-winning professional photographer and writer Rick Sammon, author of 25 books and host of 2 television programs, shares his favorite creative enhancements for turning "straight" digital pictures into more creative and imaginative images.

With this book you will become not only a well-rounded photographer but also a self-motivated artist in the powerful age of digital imaging.

Rick begins the book with advice on seeing creatively and outlines his winning artistic process to help you learn to visualize the end-result before taking a picture.

He then turns to the technical aspects of taking photographs, including his philosophy of using features like Camera Raw in Photoshop and how it is a must to obtain the best possible images.

Step-by-step lessons follow, each showing how Rick transforms his digital photographs into compelling images.

Detailed screenshots of the process accompany Rick's stunning photography and amusing anecdotes of photo shoots from around the world.
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CorelDRAW: The Official Guide

The Only Corel-Authorized Guide to CorelDRAW X4

Create fine art and commercial graphics with one powerful tool! CorelDRAW X4: The Official Guide shows you how to get a visual message across with impact and style; edit photos; build captivating layouts; and compose scenes in a clean, attention-getting style.

Learn how to illustrate like the pros, justify and flow text around shapes, and truly understand digital color.

You'll also discover how to create 3D objects, apply special effects, and integrate different media to build outstanding graphics.

Packed with expert tips and techniques for creating professional-level art, this is your one-stop CorelDRAW X4 resource.

* Create drawings that mimic traditional oils and acrylics using Artistic Media, Smudge, and Roughen brushes
* Lay out complete page designs with layers, multi-page options, and preset page and label templates
* Import and format text, flow text around illustrations, and add drop caps
* Use CorelDRAW as a desktop publishing program
* Import and edit digital photos, including camera RAW files, and incorporate them into your designs
* Add special effects to your illustrations including dynamic lens effects and transparency
* Create 3D objects with the Extrude tool
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