Connectivity of Communication Networks

Author: Guoqiang Mao

Publisher: Springer

ISBN: 3319529897

Category: Technology & Engineering

Page: 435

View: 5388

This book introduces a number of recent developments on connectivity of communication networks, ranging from connectivity of large static networks and connectivity of highly dynamic networks to connectivity of small to medium sized networks. This book also introduces some applications of connectivity studies in network optimization, in network localization, and in estimating distances between nodes. The book starts with an overview of the fundamental concepts, models, tools, and methodologies used for connectivity studies. The rest of the chapters are divided into four parts: connectivity of large static networks, connectivity of highly dynamic networks, connectivity of small to medium sized networks, and applications of connectivity studies.
Posted in Technology & Engineering

Theories of Communication Networks

Author: Peter R. Monge,Noshir S. Contractor

Publisher: Oxford University Press, USA

ISBN: 9780195160376

Category: Business & Economics

Page: 406

View: 8550

In this text, the authors develop a multitheoretical model that relates different social science theories with different network properties. This model is multilevel, providing a network decomposition that applies the various social theories to all network levels.
Posted in Business & Economics

Maritime Wideband Communication Networks

Video Transmission Scheduling

Author: Tingting Yang,Xuemin (Sherman) Shen

Publisher: Springer

ISBN: 3319073621

Category: Computers

Page: 52

View: 9863

This Springer Brief covers emerging maritime wideband communication networks and how they facilitate applications such as maritime distress, urgency, safety and general communications. It provides valuable insight on the data transmission scheduling and protocol design for the maritime wideband network. This brief begins with an introduction to maritime wideband communication networks including the architecture, framework, operations and a comprehensive survey on current developments. The second part of the brief presents the resource allocation and scheduling for video packet transmission with a goal of maximizing the weights of uploaded video packets. Finally, an energy and content aware scheduling scheme is proposed for the most efficient vessel packet throughput. Based on the real ship route traces obtained from the navigation software BLM-Ship, simulation results demonstrate the viability of the proposed schemes. Conclusions and further research directions are discussed. Maritime Wideband Communication Networks: Video Transmission Scheduling is a valuable tool for researchers and professionals working in wireless communications and networks. Advanced-level students studying computer science and electrical engineering will also find the content valuable.
Posted in Computers

Microdynamics of Technological Change

Author: Cristiano Antonelli

Publisher: Routledge

ISBN: 1134656084

Category: Business & Economics

Page: 304

View: 4235

This volume presents a comprehensive assessment of the economic effects of the emerging information and communication technologies associated with a knowledge-based economy, and looks at how knowledge is increasingly treated as a product in its own right. An original framework is developed to comprehend these fundamental shifts, based on three bodies of knowledge: * the economics of path dependence and of historical time as they are elaborated in the economics of new technologies * economic topology based on the methodology of network analysis * the new economics of knowledge and the concept of localized technological change This book provides a unified analytical framework for the study of the transition of advanced economic systems towards a knowledge-based economy.
Posted in Business & Economics

Structural Information and Communication Complexity

19th International Colloquium, SIROCCO 2012, Reykjavik, Iceland, June 30 - July 2, 2012, Revised Selected Papers

Author: Guy Even,Magnús M. Halldórsson

Publisher: Springer

ISBN: 3642311040

Category: Computers

Page: 340

View: 5723

This book constitutes the refereed proceedings of the 19th International Colloquium on Structural Information and Communication Complexity, SIROCCO 2012, held in Reykjavik, Iceland for 3 days starting June 30, 2012. The 28 revised full papers presented were carefully reviewed and selected from 54 submissions. SIROCCO is devoted to the study of communication and knowledge in distributed systems. Special emphasis is given to innovative approaches and fundamental understanding, in addition to efforts to optimize current designs. The typical areas include distributed computing, communication networks, game theory, parallel computing, social networks, mobile computing (including autonomous robots), peer to peer systems, communication complexity, fault tolerant graph theories, and randomized/probabilistic issues in networks.
Posted in Computers

Control and Automation, and Energy System Engineering

International Conferences, CA and CES3 2011, Held as Part of the Future Generation Information Technology Conference, FGIT 2011, in Conjunction with GDC 2011, Jeju Island, Korea, December 8-10, 2011. Proceedings

Author: Tai-hoon Kim,Hojjat Adeli,Adrian Stoica,Byeong-Ho Kang

Publisher: Springer Science & Business Media

ISBN: 3642260098

Category: Computers

Page: 392

View: 5006

This book comprises selected papers of the International Conferences, CA and CES3 2011, held as Part of the Future Generation Information Technology Conference, FGIT 2011, in Conjunction with GDC 2011, Jeju Island, Korea, in December 2011. The papers presented were carefully reviewed and selected from numerous submissions and focuse on the various aspects of control and automation, and circuits, control, communication, electricity, electronics, energy, system, signal and simulation.
Posted in Computers

Tourismus und mobile Freizeit

Lebensformen, Trends, Herausforderungen

Author: Roman Egger,Kurt Luger

Publisher: BoD – Books on Demand

ISBN: 3738685936

Category: Business & Economics

Page: 496

View: 3989

Hat die Spaßgesellschaft ausgelacht und hat die Krise der Wirtschaft und der Werte sämtliche Lebensstrukturen durchdrungen, sodass schon aus psychohygienischen Gründen eine permanente Ablenkung erforderlich wird, um das Leben durchzustehen? Oder haben sich die Gewichte einfach so verschoben, dass Arbeit oder besser sinnstiftende Arbeit ihren Stellenwert zurückbekommen hat und sich in den Arbeitsprozessen heutzutage mehr Entfaltungsmöglichkeiten bieten, sich Arbeit und Freizeit also nicht mehr als Antipoden einander gegenüberstehen, sondern eher ineinander greifen? Sind Urlaubs- und Ferienzeiten einfach dadurch geprägt, dass man sich von Routinen befreit bewegen kann und das möglichst weit weg oder man an solche Orte reist, die der Anmutung von Paradiesen entsprechen, Heterotope mit Glückseligkeits¬versprechen, wohl wissend, dass es sich nur um ein zeitweiliges Abtauchen in solche Glücksräume handeln kann? Oder suchen wir nur nach Phasen der Ruhe, weil der kinetische Overkill zu einer Überhitzung des Systems Mensch führt, Kopf- wie Atemlosigkeit die Sinne benebeln und das Kontrastprogramm in einem demonstrativ rasenden Stillstand besteht, in Zeiträumen, in der Zeit keine dominierende Rolle spielt? Es sich leisten können, sich im Lotussitz niederzu¬lassen und die Augen auf die Ewigkeit zu richten – wäre das eine Alternative zu den Millionen Stunden verlorener Zeit in den Wartehallen der Flughäfen und im Stau auf Autobahnen? Die dramatischen Veränderungen in unseren Gesellschaften während der letzten Jahrzehnte haben Arbeit und Freizeit entgrenzt und ent¬koppelt, eigene und doch ineinander verzahnte Bereiche geschaffen. Was können wir erwarten und welche Aussichten ergeben sich im Kontext von Klimawandel, demographi¬schen Verschiebungen, der Beschleunigung des Lebens durch die Entwicklung der Technik – das sind entscheidende Fragen für den Tourismus- und Freizeitmarkt der Zukunft.
Posted in Business & Economics

Broadband for Africa

Developing Backbone Communications Networks

Author: Mark D. J. Williams

Publisher: World Bank Publications

ISBN: 9780821381731

Category: Technology & Engineering

Page: 100

View: 4272

Many countries in Sub-Saharan Africa see broadband ICT as an essential part of their long-term economic development strategy. Backbone networks are the high-capacity networks that lie at the heart of communications systems and allow the delivery of the high volumes of data needed for broadband. What high-capacity backbone networks that do exist in the region are typically limited to major urban areas and some inter-city routes. Competition between backbone networks is underdeveloped so the price of services remains high and quality is often poor. This pattern of network development is the result of high costs and regulatory restrictions on network development. Where countries have fully liberalized their telecommunications markets and promoted infrastructure competition, prices have fallen and quality improved. Backbone network policy should focus on promoting competition, reducing the cost of network construction and encouraging network development into currently underserved areas. Competition can be promoted by removing regulatory restrictions such as limits on the number of licenses and constraints on type of infrastructure and services that licensees can offer. The cost of backbone network development can be reduced by utilizing energy and transport infrastructure and reducing legal costs such as obtaining planning permission. Stimulating backbone network development beyond major urban areas can be achieved through establishing public-private partnerships to encourage operators to build networks into currently underserved areas.
Posted in Technology & Engineering

Sensor Networks and Configuration

Fundamentals, Standards, Platforms, and Applications

Author: Nitaigour P. Mahalik

Publisher: Springer Science & Business Media

ISBN: 3540373667

Category: Technology & Engineering

Page: 509

View: 8930

This book incorporates a selection of research and development papers. Its scope is on history and background, underlying design methodology, application domains and recent developments. The readers will be able to understand the underlying technology, philosophy, concepts, ideas, and principles, with regard to broader areas of sensor network. Aspects of sensor network and experimental results have been presented in proper order.
Posted in Technology & Engineering

The Transputer in Australasia

Proceedings of the 4th Australian Transputer and Occam User Group Conference

Author: John Hulskamp,Terry Bossomaier,Tom Hintz

Publisher: IOS Press

ISBN: 9789051990683

Category: Computers

Page: 198

View: 5314

Covering recent developments involving transputer technology in the Australasian region, this work contains 35 papers addressing transputer applications in communications, networks, fuzzy systems, image processing and medical equipment.
Posted in Computers

Analysis of Computer and Communication Networks

Author: Fayez Gebali

Publisher: Springer Science & Business Media

ISBN: 0387744371

Category: Technology & Engineering

Page: 669

View: 9654

Analysis of Computer and Communication Networks provides the basic techniques for modeling and analyzing two of the fundamental components of high performance networks: switching equipment, and software employed at the end nodes and intermediate switches. The book also reviews the design options used to build efficient switching equipment. Topics covered include Markov chains and queuing analysis, traffic modeling, interconnection networks, and switch architectures and buffering strategies. This book covers the mathematical theory and techniques necessary for analyzing telecommunication systems. Queuing and Markov chain analyses are provided for many protocols currently in use. The book then discusses in detail applications of Markov chains and queuing analysis to model more than 15 communications protocols and hardware components.
Posted in Technology & Engineering

Handbook of Research on Next Generation Mobile Communication Systems

Author: Panagopoulos, Athanasios D.

Publisher: IGI Global

ISBN: 1466687339

Category: Technology & Engineering

Page: 605

View: 8710

Anyone who has ever shopped for a new smart phone, laptop, or other tech gadget knows that staying connected is crucial. There is a lot of discussion over which service provider offers the best coverage—enabling devices to work anywhere and at any time—with 4G and LTE becoming a pervasive part of our everyday language. The Handbook of Research on Next Generation Mobile Communication Systems offers solutions for optimal connection of mobile devices. From satellite signals to cloud technologies, this handbook focuses on the ways communication is being revolutionized, providing a crucial reference source for consumers, researchers, and business professionals who want to be on the frontline of the next big development in wireless technologies. This publication features a wide variety of research-based articles that discuss the future of topics such as bandwidth, energy-efficient power, device-to-device communication, network security and privacy, predictions for 5G communication systems, spectrum sharing and connectivity, and many other relevant issues that will influence our everyday use of technology.
Posted in Technology & Engineering

E-learning for architecture

Author: Stefano Panunzi,Rosalba Belibani

Publisher: Gangemi Editore spa

ISBN: 8849270267

Category: Architecture

Page: 160

View: 8920

Our research, even despite its apparent fragmentary appearance, firmly believes in the idea that information science tools and the On-Line System should be utilized in innumerable ways in the various independent stages of an architect's learning itinerary, but that they can never totally replace the maieutic aspect of master-pupil relations, even if the masters, due to the extraordinary capacities of computer science, can be themselves multiplied, since, even though distant in space, they can be visibly and audibly next to us in a shared environment, even interacting with our own designs. We ourselves are spectators with other students gathered from all over the world to share together the most precious and unique moments in our and their educational growth. Research into the most effective way of realising this 'Augmented Reality' as the Americans call it, is our most ambitious objective, along with a parallel investigation into all the other possible stages of teaching in which information science technologies can be used as a normal and potent tool for the training of an architect. [Lucio Valerio Barbera] Contributions: Gustavo Ambrosini, Roberta Ansuini, Lucio Valerio Barbera, Liliana Bazzanella, Rosalba Belibani,Michele Bonino, Luca Caneparo, Pierre-Alain Croset,Mario De Grassi, Anna Irene Del Monaco, Luca Fabbri, Alberto Giretti, Gianluigi Mondaini, Stefano Panunzi, Mario Petrone.
Posted in Architecture

Theoretical and Mathematical Foundations of Computer Science

Second International Conference, ICTMF 2011, Singapore, May 5-6, 2011, Revised Selected Papers

Author: Qihai Zhou

Publisher: Springer

ISBN: 364224999X

Category: Computers

Page: 615

View: 7073

This book constitutes the refereed post-proceedings of the Second International Conference on Theoretical and Mathematical Foundations of Computer Science, ICTMF 2011, held in Singapore in May 2011. The conference was held together with the Second International Conference on High Performance Networking, Computing, and Communication systems, ICHCC 2011, which proceedings are published in CCIS 163. The 84 revised selected papers presented were carefully reviewed and selected for inclusion in the book. The topics covered range from computational science, engineering and technology to digital signal processing, and computational biology to game theory, and other related topices.
Posted in Computers

Database and Data Communication Network Systems, Three-Volume Set

Techniques and Applications

Author: Cornelius T. Leondes

Publisher: Academic Press

ISBN: 0080530281

Category: Computers

Page: 952

View: 4746

Database and Data Communication Network Systems examines the utilization of the Internet and Local Area/Wide Area Networks in all areas of human endeavor. This three-volume set covers, among other topics, database systems, data compression, database architecture, data acquisition, asynchronous transfer mode (ATM) and the practical application of these technologies. The international collection of contributors was culled from exhaustive research of over 100,000 related archival and technical journals. This reference will be indispensable to engineering and computer science libraries, research libraries, and telecommunications, networking, and computer companies. It covers a diverse array of topics, including: * Techniques in emerging database system architectures * Techniques and applications in data mining * Object-oriented database systems * Data acquisition on the WWW during heavy client/server traffic periods * Information exploration on the WWW * Education and training in multimedia database systems * Data structure techniques in rapid prototyping and manufacturing * Wireless ATM in data networks for mobile systems * Applications in corporate finance * Scientific data visualization * Data compression and information retrieval * Techniques in medical systems, intensive care units
Posted in Computers

Pricing Communication Networks

Economics, Technology and Modelling

Author: Costas Courcoubetis,Richard Weber

Publisher: John Wiley & Sons

ISBN: 0470864249

Category: Mathematics

Page: 378

View: 4587

Traditionally engineers devised communication services without reference to how they should be priced. In today's environment pricing is a very complex subject and in practice depends on many parameters of the actual market - including amount of traffic, architecture of the network, technology, and cost. The challenge is to provide a generic service model which accurately captures aspects such as quality and performance, and can be used to derive optimal pricing strategies. Recent technology advances, combined with the deregulation of the telecommunication market and the proliferation of the internet, have created a highly competitive environment for communication service prividers. Pricing is no longer as simple as picking an appropriate model for a particular contract. There is a real need for a book that explains the provision of new services, the relation between pricing and resource allocation in networks; and the emergence of the internet and how to price it. Pricing Communication Networks provides a framework of mathematical models for pricing these multidimensional contracts, and includes background in network services and contracts, network techonology, basic economics, and pricing strategy. It can be used by economists to fill in the gaps in their knowledge of network services and technology, and for engineers and operational researchers to gain the background in economics required to price communication services effectively. * Provides a broad overview of network services and contracts * Includes a primer on modern network technology and the economic concepts relevant to pricing and competition * Includes discussion of mathematical models of traffic flow to help describe network capability and derive pricing strategies * Includes coverage of specialist topics, such as regulation, multicasting, and auctions * Illustrated throughout by detailed real examples * Suitable for anyone with an understanding of basic calculus and probability Primarily aimed at graduate students, researchers and practitioners from electrical engineering, computer science, economics and operations research Pricing Communication Networks will also appeal to telecomms engineers working in industry.
Posted in Mathematics

SOFSEM 2011: Theory and Practice of Computer Science

37th Conference on Current Trends in Theory and Practice of Computer Science, Nový Smokovec, Slovakia, January 22-28, 2011. Proceedings

Author: Ivana Cerná,Tibor Gyimóthy,Juraj Hromkovič,Keith Jeffrey,Rastislav Kralovic,Marko Vukolic,Stefan Wolf

Publisher: Springer

ISBN: 3642183816

Category: Computers

Page: 572

View: 427

This book constitutes the refereed proceedings of the 37th Conference on Current Trends in Theory and Practice of Computer Science, SOFSEM 2011, held in Nový, Smokovec, Slovakia in January 2011. The 41 revised full papers, presented together with 5 invited contributions, were carefully reviewed and selected from 122 submissions. SOFSEM 2011 was organized around the following four tracks: foundations of computer science; software, systems, and services; processing large datasets; and cryptography, security, and trust.
Posted in Computers

Reliability of Computer and Communication Networks

Proceedings of a DIMACS Workshop, December 2-4, 1989

Author: Fred S. Roberts,Frank Hwang,Clyde L. Monma

Publisher: American Mathematical Soc.

ISBN: 9780821870921

Category: Computers

Page: 259

View: 6310

Reliability problems arise with increasing frequency as our modern systems of telecommunications, information transmission, transportation, and distribution become more and more complex. In December 1989 at DIMACS at Rutgers University, a Workshop on Reliability of Computer and Communications Networks was held to examine the discrete mathematical methods relevant to these problems. There were nearly ninety participants, including theoretical mathematicians, computer scientists, and electrical engineers from academia and industry, as well as network practitioners, engineers, and reliability planners from leading companies involved in the use of computer and communications networks. This volume, published jointly with the Association for Computing Machinery, contains the proceedings from this Workshop. The aim of the Workshop was to identify the latest trends and important open problems, as well as to survey potential practical applications. The Workshop explored questions of computation of reliability of existing systems and of creating new designs to insure high reliability, in addition to the closely related notion of survivability. Redundancy, single stage and multistage networks, interconnected networks, and fault tolerance were also covered. The Workshop emphasized practical applications, with many invited speakers from a variety of companies which are dealing with practical network reliability problems. The success of the Workshop in fostering many new interactions among researchers and practitioners is reflected in the proceedings, which provide an exciting look at some of the major advances at the forefront of this important field of research.
Posted in Computers

Performance Analysis of Multi-Channel and Multi-Traffic on Wireless Communication Networks

Author: Wuyi Yue,Yutaka Matsumoto

Publisher: Springer Science & Business Media

ISBN: 0792376773

Category: Computers

Page: 324

View: 4808

This book attempts to present exact and approximate analytical solution methods and techniques using queueing theory in the complex multimedia traffic systems with procedures of random multiple access schemes. In particular, this book presents how to approximate the system performance of discrete-time multimedia networks, the probability distribution of the interarrival time of internetwork packets at the adjacent network and the higher moments of the transmission departure distribution and delay in wireless multimedia communication environment. In general the modeling of discrete-time multimedia communication systems are more complex than that of continuous-time systems because multiple state changes can occur from one time-unit to the next. This complicates the analysis of the model. This book also discusses numerical results that illustrate the applications of the theory and various properties.
Posted in Computers

Challenges and Opportunities of Connected K-Covered Wireless Sensor Networks

From Sensor Deployment to Data Gathering

Author: Habib M. Ammari

Publisher: Springer Science & Business Media

ISBN: 3642018769

Category: Computers

Page: 342

View: 3714

Wireless sensor networks have received significant attention because of their important role and many conveniences in our lives. Indeed, the recent and fast advances in inexpensive sensor technology and wireless communications has made the design and development of large-scale wireless sensor networks cost-effective and appealing to a wide range of mission-critical situations, including civilian, natural, industrial, and military applications, such as health and environmental monitoring, seism monitoring, industrial process automation, and battlefields surveillance, respectively. A wireless sensor network consists of a large number of tiny, low-powered devices, called sensors, which are randomly or deterministically deployed in a field of interest while collaborating and coordinating for the successful accomplishment of their mission. These sensors suffer from very scarce resources and capabilities, such as bandwidth, storage, CPU, battery power (or energy), sensing, and communication, to name a few, with energy being the most critical one. The major challenge in the design process of this type of network is mainly due to the limited capabilities of the sensors, and particularly, their energy, which makes them unreliable. This book aims to develop a reader’s thorough understanding of the opportunities and challenges of k-covered wireless sensor networks, where each point in a deployment field is covered (or sensed) by at least k sensors. Following René Descartes’ most elegant methodology of dividing each difficulty into as many parts as might be possible and necessary to best solve it (Discours de la Method, 1637), this book presents a variety of theoretical studies based on percolation theory and computational geometry, as well as protocols that lead to the design of a unified framework, where connected k-coverage, sensor scheduling, and data routing and dissemination are jointly considered.
Posted in Computers