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Books > Professional & Technical > Electronics & communications engineering > Communications engineering / telecommunications
As other complex systems in social and natural sciences as well as in engineering, the Internet is hard to understand from a technical point of view. Packet switched networks defy analytical modeling. The Internet is an outstanding and challenging case because of its fast development, unparalleled heterogeneity and the inherent lack of measurement and monitoring mechanisms in its core conception. This monograph deals with applications of computational intelligence methods, with an emphasis on fuzzy techniques, to a number of current issues in measurement, analysis and control of traffic in the Internet. First, the core building blocks of Internet Science and other related networking aspects are introduced. Then, data mining and control problems are addressed. In the first class two issues are considered: predictive modeling of traffic load as well as summarization of traffic flow measurements. The second class, control, includes active queue management schemes for Internet routers as well as window based end-to-end rate and congestion control. The practical hardware implementation of some of the fuzzy inference systems proposed here is also addressed. While some theoretical developments are described, we favor extensive evaluation of models using real-world data by simulation and experiments.
Network processors are the basic building blocks of today's
high-speed, high-demand, quality-oriented communication networks.
Designing and implementing network processors requires a new
programming paradigm and an in-depth understanding of network
processing requirements. This book leads the reader through the
requirements and the underlying theory of networks, network
processing, and network processors. It covers implementation of
network processors and intergrates EZchip Microcode Development
Environment so that you can gain hands-on experience in writing
high-speed networking applications. By the end of the book, the
reader will be able to write and test applications on a simulated
network processor.
Digital signal processing is commonplace in most electronics
including MP3 players, HDTVs, and phones, just to name a few of the
applications. The engineers creating these devices are in need of
essential information at a moment's notice. The Instant Access
Series provides all the critical content that a signal or
communications engineer needs in his or her daily work.
Understand the RF and Digital Signal Processing Principles Driving
Software-defined Radios KEY TOPICS
This book presents the current research on safety message dissemination in vehicular networks, covering medium access control and relay selection for multi-hop safety message broadcast. Along with an overall overview of the architecture, characteristics, and applications of vehicular networks, the authors discuss the challenging issues in the research on performance improvement for safety applications, and provide a comprehensive review of the research literature.A cross layer broadcast protocol is included to support efficient safety message broadcast by jointly considering geographical location, physical-layer channel condition, and moving velocity of vehicles in the highway scenario. To further support multi-hop safety message broadcast in a complex road layout, the authors propose an urban multi-hop broadcast protocol that utilizes a novel forwarding node selection scheme. Additionally, a busy tone based medium access control scheme is designed to provide strict priority to safety applications in vehicle-to-infrastructure communications.This book offers useful insights into protocol design and inspires a new line of thinking in performance improvements for safety applications in vehicular networks. It is a valuable resource for professionals, researchers, or advanced-level students working in vehicular networks or quality of service.
This book presents the proceedings of the first IFIP WG 6.8 conference on Wireless Sensor and Actor Networks held in Albacete, Spain. The papers selected to be included in this volume illustrate the state-of-the-art and current trends in the area of wireless sensor and actor networks. The comprehensive program was organized into eight topics: Actors; Applications; Security; Energy; Quality of Service; Localization; Middleware; Protocols.
This book presents the proceedings of the 1st EAI International Conference on Technology, Innovation, Entrepreneurship and Education (TIE 2017), which took place at Canterbury Christ Church University on September 11-12, 2017. The central theme of the conference is creativity and innovation, especially in relation to technology, business, education, social and political needs that make modern society flourish. The proceedings feature papers from a cross-disciplinary audience that explore the process of creativity and innovation. The goal is that the various disciplines can learn from each other and see how they might benefit from the cross-fertilization of practices.
This state-of-the-art edition of a radar classic brings the reader up-to-date on new developments in clutter measurement and modelling, and features a wealth of new information. Authored by a recognized expert in the field, the book covers everything from basic concepts of radar reflectivity to space-time clutter amplitude and bistatic clutter. New radar engineers should find this to be a valuable, all-encompassing, well-illustrated survey of radar reflectivity fundamentals. Veteran engineers and systems designers should appreciate the book's new coverage of: effects of frequency agility; spatial averages for terrain; graphs from GIT clutter models; land and sea echo at extremely low grazing angles; compound statistics including the K and the Rayleigh modulated by Wiebull distributions; super sea echo events and sea spikes; bistatic land and sea clutter; and more.
This book focuses on broadband distribution and systems
architecture and concentrates on practical concepts that will allow
the reader to do their own design, improvement, and troubleshooting
work. The objective is to enhance the skill sets of a large
population that designs and builds broadband cable plants, as well
as those maintaining and troubleshooting it. A large cross-section
of technical personnel who need to learn these skills design,
maintain, and service HFC systems from signal creation through
transmission to reception and processing at the customer end point.
In addition, data/voice and video specialists need to master and
reference the basics of HFC design and distribution before
contending with the intricacies of their own unique services. This
book serves as an essential reference to all cable engineers-those
who specifically design and maintain the HFC distribution plant as
well as those primarily concerned with data/voice technology as
well as video technology. Included is an online component
consisting of spreadsheets that were used in developing the
material presented in the book.
This book throws a lifeline to designers wading through mounds of antenna array patents looking for the most suitable systems for their projects. Drastically reducing the research time required to locate solutions to the latest challenges in automotive communications, it sorts and systematizes material on cutting-edge antenna arrays that feature multi-element communication systems with enormous potential for the automotive industry. These new systems promise to make driving safer and more efficient, opening up myriad applications, including vehicle-to-vehicle traffic that prevents collisions, automatic toll collection, vehicle location and fine-tuning for cruise control systems. This book's exhaustive coverage begins with currently deployed systems, frequency ranges and key parameters. It proceeds to examine system geometry, analog and digital beam steering technology (including "smart" beams formed in noisy environments), maximizing signal-to-noise ratios, miniaturization, and base station technology that facilitates in-car connectivity while on the move. An essential guide for technicians working in a fast-developing field, this new volume will be warmly welcomed as a powerful aid in their endeavors.
Wireless sensor networks have the potential to become the third wireless revolution after wireless voice networks in the 80s and wireless data networks in the late 90s. Unfortunately, radio power consumption is still a major bottleneck to the wide adoption of this technology. Different directions have been explored to minimize the radio consumption, but the major drawback of the proposed solutions is a reduced wireless link robustness. The primary goal of Architectures and Synthesizers for Ultra-low Power Fast Frequency-Hopping WSN Radios is to discuss, in detail, existing and new architectural and circuit level solutions for ultra-low power, robust, uni-directional and bi-directional radio links. Architectures and Synthesizers for Ultra-low Power Fast Frequency-Hopping WSN Radios guides the reader through the many system, circuit and technology trade-offs he will be facing in the design of communication systems for wireless sensor networks. Finally, this book, through different examples realized in both advanced CMOS and bipolar technologies opens a new path in the radio design, showing how radio link robustness can be guaranteed by techniques that were previously exclusively used in radio systems for middle or high end applications like Bluetooth and military communications while still minimizing the overall system power consumption.
Based on a rigorous selection of submissions to The 29th International Symposium on Computer and Information Sciences (ISCIS 2014), this books includes some of the most recent ideas and technical results in computer systems, computer science, and computer-communication networks. It offers the reader a timely access to innovative research and advances in computing and communications from many different areas of the world. The topics covered include (but are not limited to) computer architectures and digital systems, algorithms, theory, software engineering, data engineering, computational intelligence, system security, computer systems and networks, performance modeling and analysis, distributed and parallel systems, bioinformatics, computer vision and significant applications such as medical informatics and imaging. The 29th International Symposium on Computer and Information Sciences (ISCIS 2014) took place in Krakow Old City, Poland on October, 27-8, 2014.
Probability, Random Processes, and Ergodic Properties is for mathematically inclined information/communication theorists and people working in signal processing. It will also interest those working with random or stochastic processes, including mathematicians, statisticians, and economists. Highlights: Complete tour of book and guidelines for use given in Introduction, so readers can see at a glance the topics of interest. Structures mathematics for an engineering audience, with emphasis on engineering applications. New in the Second Edition: Much of the material has been rearranged and revised for pedagogical reasons. The original first chapter has been split in order to allow a more thorough treatment of basic probability before tackling random processes and dynamical systems. The final chapter has been broken into two pieces to provide separate emphasis on process metrics and the ergodic decomposition of affine functionals. Many classic inequalities are now incorporated into the text, along with proofs; and many citations have been added.
This book presents cutting-edge research contributions that address various aspects of network design, optimization, implementation, and application of cognitive radio technologies. It demonstrates how to make better utilization of the available spectrum, cognitive radios and spectrum access to achieve effective spectrum sharing between licensed and unlicensed users. The book provides academics and researchers essential information on current developments and future trends in cognitive radios for possible integration with the upcoming 5G networks. In addition, it includes a brief introduction to cognitive radio networks for newcomers to the field.
"LTE-Advanced relay technology and standardization" provides a
timely reference work for relay technology with the finalizing of
LTE Release 10 specifications. LTE-Advanced is quickly becoming the
global standard for 4G cellular communications. The relay
technology, as one of the key features in LTE-Advanced, helps not
only to improve the system coverage and capacity, but also to save
the costs of laying wireline backhaul. As a leading researcher in
the field of LTE-Advanced standards, the author provides an
in-depth description of LTE-A relay technology, and explains in
detail the standard specification and design principles. Dr. Yifei Yuan is theTechnical Director at the Standards Department of ZTE Inc."
Old Wires and New Waves- The History of the Telegraph, Telephone and Wireless By Alvin F. Harlow. Originally published in 1936. FOREWORD: THERE may be those who will think that a disproportionate amount of space is given in this book to the early history of the telegraph, as against the remarkable technical develop ments of the past quarter or half century. May it be suggested that the birth and infancy of ideas are intrinsically more note worthy, more important, than their middle age The centuries of groping for a method of quick communication, the one long century of mans striving to make electricity his servant, the pioneer days of the telegraph, when not only it but all America was simple and crude these are to most folk to-day so exotic, the last-named phase is to the student so significant a picture of the youth of American society and the nation, that, in the judgment of the author, they should be dealt with in detail for the benefit of a generation which knows them not. On the other hand, the rapid developments in telegraph, tele phone, and wireless in recent days are described at length in newspapers and magazines as they appear and they come so swiftly and we are so inured to them that the astounding inven tion of yesterday has to-day become a commonplace, and to morrow is superseded by something still more miraculous. It is therefore scarcely worth while for so slowly built and so final a publication as a book to attempt chronicling all the - minor de tails of recent progress in communication, especially since these matters become so complex and so abstruse that full explanation of their development and functioning would be too complicated for non-technically minded readers.Nevertheless, these modern developments have not been neglected, but are treated as fully as space limitations and the need for clarity seem to dictate. As usual, I have leaned heavily in my research upon the original documents and other materials in the collections of the New York Public Library and the New York Historical So ciety. The latters Henry ORielly Collection is one of the most valuable telegraph sources in existence. The great communications companies have all been very help ful. Through the good offices of Mr. William P. Banning, Assis tant Vice-President of the American Telephone and Telegraph Company, I spent many hours in personally conducted tours through that companys three huge operating buildings in New York City, any one of which is worth a trip to New York to see I was overwhelmed with pamphlets, reports, documents, magazine articles, and books and any and all photographs I desired for illustrations were at my disposal. Mr. Langdon, the librarian Miss Winburg, keeper of the photographs Messrs. Fowler and Mills of the Bell Telephone Laboratories, Rood and Lea of the Long Lines Building Carl and Sedgwick of the New York Telephone Company, all gave their assistance with the courtesy characteristic of the organization. Mr. E. W. Goode, of the publicity department of the Inter national Telephone and Telegraph Corporation, supplied all the data at his command, loaned books not to be found elsewhere, procured permission for me to see the companys operating rooms, gave me whatever photographs I desired, and searched the country over for older ones which were not in his files. The Radio Corporation of America, through Messrs. Galvin, Wright, and Weaver, was also veryhelpful. I was conducted through its operating building and was supplied with photographs and technical information as needed...
Steganography, a means by which two or more parties may communicate using "invisible" or "subliminal" communication, and watermarking, a means of hiding copyright data in images, are becoming necessary components of commercial multimedia applications that are subject to illegal use. This is a comprehensive survey of steganography and watermarking and their application to modern communications and multimedia. It helps the reader to understand steganography, the history of this previously neglected element of cryptography, the hurdles of international law on strong cryptographic techniques, and a description of the methods you can use to hide information in modern media. Included in this discussion is an overview of "steganalysis", methods which can be used to break stenographic communication. This resource also includes an introduction to and survey of watermarking methods, and discusses this method's similarities to and differences from steganography. The reader should gain a working knowledge of watermarking's pros and cons, and learn the legal implications of watermarking and copyright issues on the Internet.
Strengthen your understanding of fast-moving WDMA optical network technology, and learn how to better select and design reliable all-optical telecom networks with this practical book. It will help expand your knowledge of LLN, Manhattan, Shuffle, De Bruijn, Gemmet, Matrix, Swift, and Starnet and will show you how to employ an effective method of network organization based on traffic demands.
Wireless technology and handheld devices are dramatically changing the degrees of interaction throughout the world, further creating a ubiquitous network society. The emergence of advanced wireless telecommunication technologies and devices in today's society has increased accuracy and access rate, all of which are increasingly essential as the volume of information handled by users expands at an accelerated pace. The requirement for mobility leads to increasing pressure for applications and wireless systems to revolve around the concept of continuous communication with anyone, anywhere, and anytime. With the wireless technology and devices come ?exibility in network design and quicker deployment time. Over the past decades, numerous wireless telecommu- cation topics have received increasing attention from industry professionals, a- demics, and government agencies. Among these topics are the wireless Internet; multimedia; 3G/4G wireless networks and systems; mobile and wireless network security; wireless network modeling, algorithms, and simulation; satellite based s- tems; 802.11x; RFID; and broadband wireless access.
This book examines recent developments in semantic systems that can respond to situations and environments and events. The contributors to this book cover how to design, implement and utilize disruptive technologies. The editor discusses the two fundamental sets of disruptive technologies: the development of semantic technologies including description logics, ontologies and agent frameworks; and the development of semantic information rendering and graphical forms of displays of high-density time-sensitive data to improve situational awareness. Beyond practical illustrations of emerging technologies, the editor proposes to utilize an incremental development method called knowledge scaffolding -a proven educational psychology technique for learning a subject matter thoroughly. The goal of this book is to help readers learn about managing information resources, from the ground up and reinforcing the learning as they read on.
This book explains the advantages of fiber optics over conventional coaxial cables when routing microwave signals.
Over the past decade, the world has witnessed an explosion in the
development and deployment of new wireless network technologies.
From cellular mobile telephony to the ubiquitous "WiFi" networks in
coffee-shops and airports, to the emerging WiMAX wireless broadband
access networks, the menu of wireless access systems has become so
comprehensive that wireline access to user devices may soon become
a relic of the past. Wireless Networking serves as a one-stop view
of cellular, WiFi, and WiMAX networks, as well as the emerging
wireless ad hoc and sensor networks. Rather than provide
descriptive accounts of these technologies and standards, the book
emphasizes conceptual perspectives on the modeling, analysis,
design and optimization of such networks. Furthermore, the authors
present wireless networking within the unifying framework of
resource allocation, using simple abstractions of the underlying
physical wireless communication. In short, Wireless Networking is
an in-depth, exhaustive, and invaluable asset to anyone working in
this rapidly evolving field.
Instructs advanced and important analysis methods which are frequently used for researchers, engineers and students who work on applications of electromagnetic waves to microwave devices and antennas. The book also includes various numerical techniques.
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