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Books > Computing & IT > Computer communications & networking > General
Optical networks have been in commercial deployment since the early 1980s as a result of advances in optical, photonic, and material technologies. Although the initial deployment was based on silica ?ber with a single wavelength modulated at low data rates, it was quickly demonstrated that ?ber can deliver much more bandwidth than any other transmission medium, twisted pair wire, coaxial cable, or wireless. Since then, the optical network evolved to include more exciting technologies, gratings, optical ?lters, optical multiplexers, and optical ampli?ers so that today a single ?ber can transport an unprecedented aggregate data rate that exceeds Tbps, and this is not the upper limit yet. Thus, the ?ber optic network has been the network of choice, and it is expected to remain so for many generationsto come, for both synchronousand asynchronouspayloads; voice, data, video, interactive video, games, music, text, and more. In the last few years, we have also witnessed an increase in network attacks as a result of store andforwardcomputer-basednodes. These attackshave manymaliciousobjectives: harvestsomeone else's data, impersonate another user, cause denial of service, destroy ?les, and more. As a result, a new ?eld in communicationis becomingimportant, communicationnetworksand informationse- rity. In fact, the network architect and system designer is currently challenged to include enhanced features such as intruder detection, service restoration and countermeasures, intruder avoidance, and so on. In all, the next generation optical network is intelligent and able to detect and outsmart malicious intruders.
This book presents the application of a comparatively simple nonparametric regression algorithm, known as the multivariate adaptive regression splines (MARS) surrogate model, which can be used to approximate the relationship between the inputs and outputs, and express that relationship mathematically. The book first describes the MARS algorithm, then highlights a number of geotechnical applications with multivariate big data sets to explore the approach's generalization capabilities and accuracy. As such, it offers a valuable resource for all geotechnical researchers, engineers, and general readers interested in big data analysis.
Broadband Fixed Wireless Access provides a systematic overview of the emerging WiMAX technology, and much of the material is based on the practical experiences of the authors in building new systems. This material will be of significant interest to network architects and developers of broadband fixed wireless access products. With the advent of the IEEE 802.16 standard (has the standard or any part of it been adopted or is likely to be adopted soon) and next generation equipment, this technology has been growing in interest. The authors discuss applications at microwave frequencies between 2 and 11 GHz that could be attractive options for operators without an existing access infrastructure for reaching end users. This introductory volume demystifies the technology and provides technical exposure to the various system trade-offs. Additionally, the book features the following highlights: detailed modeling of broadband fixed wireless access propagation channel, including new measurements for its time variation; an extensive overview of the IEEE 802.1 discussion of the suitability of various multi-antenna techniques; and elaboration of various techniques, i.e. autodirecting antennas, bridging with WLAN, and multi-hop networking, that can be used to reduce the cost of ownership of a WiMAX network for an operator. The authors cover a wide range of topics, from network deployment to implementation of terminals. Wireless professionals will gain a head start from the information on WiMAX technology. This is a must read book when starting with broadband fixed wireless access.
The vast reduction in size and power consumption of CMOS circuitry
has led to a large research effort based around the vision of
ubiquitous networks of wireless communication nodes. The wireless
devices are usually designed to run on batteries. However, as the
networks increase in number and the devices decrease in size, the
replacement of depleted batteries is not practical. Furthermore, a
battery that is large enough to last the lifetime of the device
would dominate the overall system size, and thus is not very
attractive. There is clearly a need to explore alternative methods
of powering these small communication nodes. This book, therefore,
focuses on potential "ambient" sources of power that can be
scavenged or harvested and subsequently used to run low power
electronics and wireless transceivers.
With the rapid growth of bandwidth demand from network users and the advances in optical technologies, optical networks with multiterabits per-second capacity has received significant interest from both researchers and practitioners. Optical networks deployment raises a number of challenging problems that require innovative solutions, including net work architectures, scalable and fast network management, resource efficient routing and wavelength assignment algorithms, QoS support and scheduling algorithms, and switch and router architectures. In this book, we put together some important developments in this exiting area during last several years. Some of the articles are research papers and some are surveys. All articles were reviewed by two reviewers. The paper, "On Dynamic Wavelength Assignment in WDM Optical Networks," by Alanyali gives an overview of some issues in the analy sis and synthesis of dynamic wavelength assignment policies for optical WDM networks and illustrates a new method of analysis. The paper by Ellinas and Bala, "Wavelength Assignment Algorithms for WDM Ring Architectures," presents two optimal wavelength assignment algorithms that assign the minimum number of wavelengths between nodes on WDM rings to achieve full mesh connectivity. In the paper, "Optimal Placement of Wavelength Converters in WDM Networks for Parallel and Distributed Computing Systems," Jia et al."
Learn how and when to apply the latest phase and phase-difference modulation (PDM) techniques with this valuable guide for systems engineers and researchers. It helps you cut design time and fine-tune system performance.
Cloud computing has provided multiple advantages as well as challenges to software and infrastructure services. In order to be fully beneficial, these challenges facing cloud specific communication protocols must be addressed. Communication Infrastructures for Cloud Computing presents the issues and research directions for a broad range of cloud computing aspects of software, computing, and storage systems. This book will highlight a broad range of topics in communication infrastructures for cloud computing that will benefit researchers, academics, and practitioners in the active fields of engineering, computer science, and software.
This text evaluates wideband CDMA as an effective third generation technology option, giving a picture of the various wideband CDMA standardization activities underway worldwide in the late 1990s. The book compares a range of CDMA design techniques and examines how each affects system performance. It also describes how third generation system applications will impact radio access system design and compares and contrasts each major wideband CDMA standardization proposal currently on the table, including FRAMES wideband CDMA in Europe, Core-A in Japan, wideband IS-95 in the US, and wideband CDMA in Korea. It identifies and describes various air interface access schemes for third and fourth generation mobile communications systems; analyzes wideband CDMA performance in varying radio environments; and discusses the integration of the GSM core network with wideband CDMA.
This book presents the proceedings of the International Conference on Wireless Intelligent and Distributed Environment for Communication (WIDECOM 2018), organized by SRM University, NCR Campus, New Delhi, India, February 16-18, 2018. The conference focuses on challenges with respect to the dependability of integrated applications and intelligence-driven security threats against the platforms supporting these applications. The WIDECOM 2018 proceedings features papers addressing issues related to the new dependability paradigms, design, control, and management of next generation networks, performance of dependable network computing and mobile systems, protocols that deal with network computing, mobile/ubiquitous systems, cloud systems, and Internet of Things (IoT) systems. The proceeding is a valuable reference for researchers, instructors, students, scientists, engineers, managers, and industry practitioners, in industry, in the aforementioned areas. The book's structure and content is organized in such a manner that makes it useful at a variety of learning levels. Presents the proceedings of the International Conference on Wireless Intelligent and Distributed Environment for Communication (WIDECOM 2018), organized by SRM University, NCR Campus, New Delhi, India, February 16-18, 2018; Includes an array of topics related to new dependability paradigms, design, control, and management of next generation networks, performance of dependable network computing and mobile systems, protocols that deal with network computing, mobile/ubiquitous systems, cloud systems, and Internet of Things (IoT) systems; Addresses issues related to the design and performance of dependable network computing and systems and to the security of these systems.
An all-encompassing guide to the business, engineering, and regulatory factors shaping the growth of the distance learning industry. This book examines potential providers, users, applications, and problem solutions, and includes actual case studies. An outstanding reference for educators, network service providers, public policy makers, and graduate level engineering students specializing in telecommunications.
Like the 120 volt standard for electricity, the appearance of standards in network management heralds new opportunities for creativity and achievement. As one example, within the framework of these evolving standards, consider a system of local area networks connecting computing equipment from different vendors. A bridge 1qc. k:8 up because of a transient caused by a repeater failure. The result is a massive disconnecHon of virtual circuits. What is the role of the manager and the network management system in solving the problem? How does the vendor implement the solution? How does the user use it? What measurements should be made? How should they be displayed? How much of the diagnosis and correction should be automated? How does the solution change with different hardware and software? In the IEEE Communications Magazine, I recently reported a timely illustration in the area of problems in fault management. At the workshop hotel, "I was waiting for a room assignment at the reception desk, when my attendant left the counter for a moment. Upon returning, he took one look at his screen and whined an accusatory question at everyone in sight, 'Who logged out my terminal?' Who indeed! It wasn't any of us. It was the system.
It gives me immense pleasure to introduce this timely handbook to the research/- velopment communities in the ?eld of signal processing systems (SPS). This is the ?rst of its kind and represents state-of-the-arts coverage of research in this ?eld. The driving force behind information technologies (IT) hinges critically upon the major advances in both component integration and system integration. The major breakthrough for the former is undoubtedly the invention of IC in the 50's by Jack S. Kilby, the Nobel Prize Laureate in Physics 2000. In an integrated circuit, all components were made of the same semiconductor material. Beginning with the pocket calculator in 1964, there have been many increasingly complex applications followed. In fact, processing gates and memory storage on a chip have since then grown at an exponential rate, following Moore's Law. (Moore himself admitted that Moore's Law had turned out to be more accurate, longer lasting and deeper in impact than he ever imagined. ) With greater device integration, various signal processing systems have been realized for many killer IT applications. Further breakthroughs in computer sciences and Internet technologies have also catalyzed large-scale system integration. All these have led to today's IT revolution which has profound impacts on our lifestyle and overall prospect of humanity. (It is hard to imagine life today without mobiles or Internets ) The success of SPS requires a well-concerted integrated approach from mul- ple disciplines, such as device, design, and application.
In a single volume, The Mobile Communications Handbook covers the entire field, from principles of analog and digital communications to cordless telephones, wireless local area networks (LANs), and international technology standards. The tremendous scope of this second edition ensures that it will be the primary reference for every aspect of mobile communications. Details and references follow preliminary discussions, ensuring that the reader obtains the most accurate information available on the particular topic.
Peer-to-Peer (P2P) networks allow individuals to share digital content files in real time. They facilitate communication and promote community without hierarchy or strict control. This book applies economic principles to analyze and understand the P2P phenomenon. It also provides numerous contemporary examples from the US and around the world to shed light on the implications of P2P as a mass medium, considering such issues as pricing, licensing, security, and regulation.
The process control industry has seen generations of technology advancement, from pneumatic communication to electrical communication to electronic c- munication, from centralized control to distributed control. At the center of today's distributed control systems are operator workstations. These operator wo- stations provide the connection between those overseeing and running plant operations to the process itself. With each new generation of products the operator workstation has become increasingly more intelligent. Newer applications provide advanced alarming, control, and diagnostics. Behind all of these applications are smarter devices. These smart devices provide greater process insight, reduce en- neering costs, and contribute to improving the overall operational performance of the plant. Smart devices include advanced diagnostics that can report the health of the device and in many cases, the health of the process that the device is connected to. It is not uncommon for smart devices to include diagnostics that can detect plugged lines, burner flame instability, agitator loss, wet gas, orifice wear, leaks, and cavitations. These devices tell the user how well they are operating and when they need maintenance. Improvements in sensor technology and diagnostics have lead to a large variety of smart devices. So how do users connect the capabilities of these smart devices to their existing control system infrastructures? The answer is wireless. Wireless technology has matured to the point that it now can be safely applied in industrial control, monitor, and asset management applications.
This book provides an overview of positioning technologies, applications and services in a format accessible to a wide variety of readers. Readers who have always wanted to understand how satellite-based positioning, wireless network positioning, inertial navigation, and their combinations work will find great value in this book. Readers will also learn about the advantages and disadvantages of different positioning methods, their limitations and challenges. Cognitive positioning, adding the brain to determine which technologies to use at device runtime, is introduced as well. Coverage also includes the use of position information for Location Based Services (LBS), as well as context-aware positioning services, designed for better user experience.
"This book is by far the most comprehensive and orderly treatment
of the subject. It is the work of experts with a wealth of both
theoretical and practical experience with the subject and its
connecting disciplines. It is an integral work... concepts and
notation are at the same consistent level throughout the book.
Quality of Service (QoS) is an absolutely critical part of any
telecommunication services. This work fills a gap in the literature
of what possibilities there are for satellites in providing global
Internet services." Excerpted from the Foreword by Raymond L.
Pickholtz, The George Washington University
Computer-AidedInnovation(CAI)isayoungdomaininthearrayofCAxte- nologies. ThegoalofCAIistosupportengineersandenterprisesthroughoutthe completeinnovationprocess. AlthoughsomeexistingideasandconceptsofCAI focus on assisting product designers in their creative stage, a more compreh- sive vision conceives CAI systems beginning at the creative stage of perceiving business opportunities and customer demands, then helping in developing - ventions and, further on, providing help up to the point of turning inventions into successful innovations in the market. Following the track of the last two successful CAI conferences held in 2005, in Germany, and 2007 in USA, the ThirdIFIPWorkingConferenceonComputer-AidedInnovation(CAI)washeld in Harbin, China, and attractedparticipants fromacademia and industry. This workingconferencecontinuedthe traditionofstronglylinkingacademicand- dustrymembers. Theconferencehadseveralparallelsessions, andeightkeynote sessions. Over 100 participants attended the conference. Some famous scholars wereinvited askeynotespeakers. I would liketo takethe opportunityto thank all the authors for their quality research, the international Program Comm- teemembersfortheirsupportinreviewingthepapers, andthelocalOrganizing Committeefortheirpreparationoftheconference. Furthermore, IthanktheC- neseNaturalScienceFoundation, theDepartmentofScienceandTechnologyof HeilongjiangProvincialGovernment, theInstituteofDesignforInnovation, and Hebei University of Technology, for their ?nancial support of the conference. I wouldalsoliketothankZhuLin, YaoYihang, XueGuiying, andCaoGuozhong for their signi?cantcontributions towardthe successof the conference. August 2009 Runhua Tan Organization TheThirdIFIPWorkingConferenceonComputer-AidedInnovation(CAI)was organized by Hebei University of Technology and the Department of Science andTechnologyofHeilongjiangProvincialGovernmentincooperationwiththe National Natural Science Foundationof China. Program Committee Conference Chair Runhua Tan, (Hebei University ofTechnology, China) Noel Leon(ITESM, Campus Monterrey, Mexico) OrganizingChair T. S. Yang (Department ofScience and Technologyof Heilongjiang Provincial Government, China) Referees T. Arciszewski(USA) Y. Li (China) M. Ashtiani (USA) H. Liu (China) G. Cascini(Italy) M. L. Maher (Australia) D. Cavalucci (France) M. B. Mc Grath(USA) R. De Guio(France) G. Mukundan (USA) S. K. Cho (USA) G. Olling (USA) S. Finger (USA) J. Ovtcharova(Germany) J. Gero(Australia) E. Schueler-Hainsch(Germany) C. Gundlach(Germ
This book presents a state-of-the art review of current perspectives on Communications and Multimedia Security. It contains the Proceedings of the 3rd Joint Working Conference of IFIP TC6 and TC11, arranged by the International Federation for Information Processing and held in Athens, Greece in September 1997. The book aims to cover the subject of Communications and Multimedia Systems Security, as fully as possible. It constitutes an essential reading for information technology security specialists; computer professionals; communication systems professionals; EDP managers; EDP auditors; managers, researchers and students working on the subject.
Use your interpersonal and communication skills as a financial professional to work successfully with clients Embark on a journey to further develop your career when you read People-Centric Skills Interpersonal and Communication Skills for Financial Professionals, 2nd Edition. Business leaders consider employee communication skills and critical thinking abilities as essential elements for success. In their work, all professionals must communicate clearly and rely on their interpersonal skills to be successful. This second edition of People-Centric Skills shares the fictional story of Dalton Zimmer, executive coach and public speaker. Dalton, all the while juggling his business, kids and social life, provides coaching and communication strategies for handling challenging situations faced by his clients. This insightful narrative will help you expand communication and soft skills as a CPA, auditor, financial planner or other financial professional. As Generation Z is entering the work force, the communication gap between Z and Boomers or Generation X is widening significantly. New to the second edition, you'll find a discussion of communication between generations and how to bridge them as a financial professional. You can be a more people-centric leader as you engage with a wide range of clients and associates. This book can be a first step to improving interpersonal and communication skills as you continue to develop in your career.
This book presents the combined peer-reviewed proceedings of the tenth International Symposium on Intelligent Distributed Computing (IDC'2016), which was held in Paris, France from October 10th to 12th, 2016. The 23 contributions address a range of topics related to theory and application of intelligent distributed computing, including: Intelligent Distributed Agent-Based Systems, Ambient Intelligence and Social Networks, Computational Sustainability, Intelligent Distributed Knowledge Representation and Processing, Smart Networks, Networked Intelligence and Intelligent Distributed Applications, amongst others.
This book presents a selection of expanded research papers from the Fourth IFIP Workshop on the Performance Modelling and Evaluation of ATM Networks. It provides a fundamental source of reference on the latest research techniques and tools concerning ATM networks worldwide. A number of important topics are featured including: traffic modelling and characterisation, models of ATM switches, network management, high speed LANs and MANs and routing and optimization. |
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