Aspets Multiservices Des Reseaux Large Bande

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ASPETS MULTISERVICES DES RESEAUX LARGE BANDE

Author : AHMED.. ZIRAM
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (492 download)

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Book Synopsis ASPETS MULTISERVICES DES RESEAUX LARGE BANDE by : AHMED.. ZIRAM

Download or read book ASPETS MULTISERVICES DES RESEAUX LARGE BANDE written by AHMED.. ZIRAM and published by . This book was released on 1998 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES RESEAUX LARGE BANDE DOIVENT ABSORBER UN TRAFIC DE NATURE COMPLEXE. LA GESTION DU TRAFIC ET DES RESSOURCES DE CE TYPE DE RESEAUX EST, DE CE FAIT, TRES IMPORTANTE. L'ATM EST LA TECHNIQUE DE TRANSPORT ET DE COMMUTATION QUI VA SUPPORTER CES RESEAUX. CETTE THESE A POUR OBJET D'ETUDIER LE TRAFIC ATM VU A L'ECHELLE DES APPELS DANS LE CONTEXTE DE SYSTEMES COMPLEXES COMME LES COMMUTATEURS MULTIETAGES ET MULTICHEMINS. LES PERFORMANCES DE CES SYSTEMES SONT EVALUEES EN TERME DE TAUX DE REJET D'APPELS OU BLOCAGE. L'ETUDE DU ROUTAGE A TRAIT AU MODE D'AFFECTATION DE CHEMINS AUX APPELS DANS LE COMMUTATEUR. A CET EFFET, UNE CLASSIFICATION DES ALGORITHMES DE ROUTAGE EST PROPOSEE PERMETTANT, AINSI, DE DEFINIR DE FACON PRECISE LES CRITERES DE CHOIX D'UNE STRATEGIE DE ROUTAGE. LES PROCEDURES D'ADMISSION DES APPELS CONCERNENT LE MODE DE GESTION DES RESSOURCES DANS LES LIENS DU COMMUTATEURS QUI PERMET D'ASSURER UNE QUALITE DE SERVICE AU NIVEAU APPEL. SUR LE PLAN ANALYTIQUE, LE COMMUTATEUR EST MODELISE COMME UN SYSTEME MULTISERVICE COMPLEXE. UN RESEAU DE MULTISERVEURS EST ETUDIE SOUS LES CONDITIONS DE ROUTAGE DYNAMIQUE AVEC UNE POLITIQUE D'ADMISSION GENERALE. CETTE ETUDE EST BASEE SUR UNE METHODE DE DECOMPOSITION MULTINIVEAU DE CHAINE DE MARKOV. PAR LA SUITE, LES PERFORMANCES DU COMMUTATEUR SONT EVALUEES EN UTILISANT UNE EXTENSION DE LA METHODE DE JACOBAEUS ET LES RESULTATS OBTENUS SUR LE RESEAU DE MULTISERVEURS.

Communication Networks And Computer Systems: A Tribute To Professor Erol Gelenbe

Author : Javier A Barria
Publisher : World Scientific
ISBN 13 : 1908979844
Total Pages : 277 pages
Book Rating : 4.9/5 (89 download)

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Book Synopsis Communication Networks And Computer Systems: A Tribute To Professor Erol Gelenbe by : Javier A Barria

Download or read book Communication Networks And Computer Systems: A Tribute To Professor Erol Gelenbe written by Javier A Barria and published by World Scientific. This book was released on 2006-06-19 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Communication networks and computer systems research is entering a new phase in which many of the established models and techniques of the last twenty years are being challenged. The research community is continuing to free itself from past intellectual constraints so that it may fully exploit the convergence of computing and communications. Evaluating the performance of emerging communications and computer systems constitutes a huge challenge. Thus, current research provides a set of heterogeneous tools and techniques embracing the uncertainties of time and space varying environments when the requests for diverse services are made in real time, and with very different quality of service expectations.These novel techniques will lead to fast and economic service deployment and effective dynamic resource management, and hence to new business strategies and infrastructures that will facilitate the emergence of future services and applications.This volume contains contributions and presentations made by leading international researchers at a workshop which was held in April 2004 to honour Professor Erol Gelenbe on the occasion of his inaugural lecture as the Dennis Gabor Chair at Imperial College London.

Performance, Quality of Service, and Control of Next-generation Communications Networks II

Author : Robert D. van der Mei
Publisher : SPIE-International Society for Optical Engineering
ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Performance, Quality of Service, and Control of Next-generation Communications Networks II by : Robert D. van der Mei

Download or read book Performance, Quality of Service, and Control of Next-generation Communications Networks II written by Robert D. van der Mei and published by SPIE-International Society for Optical Engineering. This book was released on 2004 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.

Annales des télécommunications

Author :
Publisher :
ISBN 13 :
Total Pages : 622 pages
Book Rating : 4.:/5 (334 download)

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Book Synopsis Annales des télécommunications by :

Download or read book Annales des télécommunications written by and published by . This book was released on 1999 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Market Assessment Study of New Media Learning Materials

Author : Canada. Industry Canada
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Market Assessment Study of New Media Learning Materials by : Canada. Industry Canada

Download or read book Market Assessment Study of New Media Learning Materials written by Canada. Industry Canada and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Radio Over Fiber Technologies for Mobile Communications Networks

Author : Hamed Al-Raweshidy
Publisher : Artech House
ISBN 13 : 1580531482
Total Pages : 459 pages
Book Rating : 4.5/5 (85 download)

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Book Synopsis Radio Over Fiber Technologies for Mobile Communications Networks by : Hamed Al-Raweshidy

Download or read book Radio Over Fiber Technologies for Mobile Communications Networks written by Hamed Al-Raweshidy and published by Artech House. This book was released on 2002 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade there have been massive advances in the areas of mobile and optical fiber communications. This unique book shows you how to combine these methods to create new radio over fiber technologies that offer seamless operation and greater multimedia application potential for your current and third generation mobile communication networks.

Space Systems as Contributors to the NATO Defence Mission

Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Space Systems as Contributors to the NATO Defence Mission by : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium

Download or read book Space Systems as Contributors to the NATO Defence Mission written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Mission Systems Panel. Symposium and published by . This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

New Systems and Services in Telecommunications, III

Author : Guy Cantraine
Publisher : North Holland
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis New Systems and Services in Telecommunications, III by : Guy Cantraine

Download or read book New Systems and Services in Telecommunications, III written by Guy Cantraine and published by North Holland. This book was released on 1987 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.

Multilevel Optimization: Algorithms and Applications

Author : A. Migdalas
Publisher : Springer Science & Business Media
ISBN 13 : 1461303079
Total Pages : 402 pages
Book Rating : 4.4/5 (613 download)

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Book Synopsis Multilevel Optimization: Algorithms and Applications by : A. Migdalas

Download or read book Multilevel Optimization: Algorithms and Applications written by A. Migdalas and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers working with nonlinear programming often claim "the word is non linear" indicating that real applications require nonlinear modeling. The same is true for other areas such as multi-objective programming (there are always several goals in a real application), stochastic programming (all data is uncer tain and therefore stochastic models should be used), and so forth. In this spirit we claim: The word is multilevel. In many decision processes there is a hierarchy of decision makers, and decisions are made at different levels in this hierarchy. One way to handle such hierar chies is to focus on one level and include other levels' behaviors as assumptions. Multilevel programming is the research area that focuses on the whole hierar chy structure. In terms of modeling, the constraint domain associated with a multilevel programming problem is implicitly determined by a series of opti mization problems which must be solved in a predetermined sequence. If only two levels are considered, we have one leader (associated with the upper level) and one follower (associated with the lower level).

Ultra Wide Band Antennas

Author : Xavier Begaud
Publisher : John Wiley & Sons
ISBN 13 : 1118586573
Total Pages : 217 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Ultra Wide Band Antennas by : Xavier Begaud

Download or read book Ultra Wide Band Antennas written by Xavier Begaud and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recognized studies.

Spacecraft Operations

Author : Florian Sellmaier
Publisher : Springer Nature
ISBN 13 : 3030885933
Total Pages : 610 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Spacecraft Operations by : Florian Sellmaier

Download or read book Spacecraft Operations written by Florian Sellmaier and published by Springer Nature. This book was released on 2022-06-14 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the basic concepts of spacecraft operations for both manned and unmanned missions. The first part of the book provides a brief overview of the space segment. The next four parts deal with the classic areas of space flight operations: mission operations, communications and infrastructure, the flight dynamics system, and the mission planning system. This is followed by a part describing the operational tasks of the various subsystems of a classical satellite in Earth orbit. The last part describes the special requirements of other mission types due to the presence of astronauts, the approach of a satellite to another target satellite, or leaving Earth orbit in interplanetary missions and landing on other planets and moons. The 2nd edition is published seven years after the first edition. It contains four new chapters on flight procedures, the human factors, ground station operation, and software and systems. In addition, several chapters have been extensively expanded. The entire book has been brought up to date and the language has been revised. This book is based on the “Spacecraft Operations Course” held at the German Space Operations Center. However, the target audience of this book is not only the participants of the course, but also students of technical and scientific courses, as well as technically interested people who want to gain a deeper understanding of spacecraft operations.

MIMO

Author : Alain Sibille
Publisher : Academic Press
ISBN 13 : 0123821959
Total Pages : 385 pages
Book Rating : 4.1/5 (238 download)

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Book Synopsis MIMO by : Alain Sibille

Download or read book MIMO written by Alain Sibille and published by Academic Press. This book was released on 2010-12-03 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foreword from Arogyaswami Paulraj, Professor (Emeritus), Stanford University (USA) - The first book to show how MIMO principles can be implemented in today's mobile broadband networks and components - Explains and solves some of the practical difficulties that arise in designing and implementing MIMO systems - Both theory and implementation sections are written in the context of the most recent standards: IEEE 802.11n (WiFi); IEEE 802.16 (WIMAX); 4G networks (3GPP/3GPP2, LTE)

Quantum Communications and Cryptography

Author : Alexander V. Sergienko
Publisher : CRC Press
ISBN 13 : 1420026607
Total Pages : 248 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Quantum Communications and Cryptography by : Alexander V. Sergienko

Download or read book Quantum Communications and Cryptography written by Alexander V. Sergienko and published by CRC Press. This book was released on 2018-10-03 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy. Quantum Communications and Cryptography is the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes the engineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptography supplies a springboard for further developments and breakthroughs in this rapidly growing area.

HSDPA/HSUPA for UMTS

Author : Harri Holma
Publisher : John Wiley & Sons
ISBN 13 : 0470032626
Total Pages : 268 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis HSDPA/HSUPA for UMTS by : Harri Holma

Download or read book HSDPA/HSUPA for UMTS written by Harri Holma and published by John Wiley & Sons. This book was released on 2007-01-11 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the editors of the highly successful WCDMA for UMTS, this new book provides a comprehensive and up-to-date reference to High Speed Packet Access (HSPA) technologies for WCDMA. The editors cover both HSDPA and HSUPA, including an in-depth description and explanation of 3GPP standards, and expected performance based on simulations and first measurements. The text also discusses the impact of HSDPA and HSUPA on network dimensioning, covers applications and end-to-end performance in detail, and includes a section on radio frequency requirements and terminal design considerations. The most comprehensive and advanced guide to the HSDPA (High Speed Downlink Packet Access) and HSUPA (High Speed Uplink Packet Access) technologies and standardisation, HSDPA/HSUPA for UMTS: Analyses the impact of HSDPA/HSUPA on network dimensioning, discussing co-existence with R99 (Release 99) and GPRS/EDGE (General Packet Radio Services/ Enhanced Data GSM Environment) Contains a section on applications and end-to-end (e2e) performance Includes a chapter on radio frequency (RF) requirements and terminal design considerations, covering different RF bands, multi-band HSDPA and multi-mode HSDPA+EDGE challenges, power consumption Provides numerous illustrations of 3GPP (Third Generation Partnership Project) standards and performance This title provides excellent coverage of the area for system, element and chip designers, network planners, technical mangers with vendors, operators and application developers. It is also ideal for postgraduates and researchers in related areas.

Planning, Connecting, and Financing Cities — Now

Author : Somik V. Lall
Publisher : World Bank Publications
ISBN 13 : 0821398393
Total Pages : 132 pages
Book Rating : 4.8/5 (213 download)

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Book Synopsis Planning, Connecting, and Financing Cities — Now by : Somik V. Lall

Download or read book Planning, Connecting, and Financing Cities — Now written by Somik V. Lall and published by World Bank Publications. This book was released on 2013-01-21 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report was written by a team led by Somik V. Lall"--P. xi.

Pervasive Mobile and Ambient Wireless Communications

Author : Roberto Verdone
Publisher : Springer Science & Business Media
ISBN 13 : 144712314X
Total Pages : 696 pages
Book Rating : 4.4/5 (471 download)

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Book Synopsis Pervasive Mobile and Ambient Wireless Communications by : Roberto Verdone

Download or read book Pervasive Mobile and Ambient Wireless Communications written by Roberto Verdone and published by Springer Science & Business Media. This book was released on 2012-01-02 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reporting the findings of COST 2100, a major European intergovernmental project, this volume offers system designers a good source of guidelines based on channel characterization and measurement-based modeling, as well as worthwhile ideas for future research.

Semantic and Lexical Universals

Author : Cliff Goddard
Publisher : John Benjamins Publishing
ISBN 13 : 9027230285
Total Pages : 521 pages
Book Rating : 4.0/5 (272 download)

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Book Synopsis Semantic and Lexical Universals by : Cliff Goddard

Download or read book Semantic and Lexical Universals written by Cliff Goddard and published by John Benjamins Publishing. This book was released on 1994-01-01 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: This set of papers represents a unique collection; it is the first attempt ever to empirically test a hypothetical set of semantic and lexical universals across a number of genetically and typologically diverse languages. In fact the word 'collection' is not fully appropriate in this case, since the papers report research undertaken specifically for the present volume, and shaped by the same guidelines. They constitute parallel and strictly comparable answers to the same set of questions, coordinated effort with a common aim, and a common methodology.The goal of identifying the universal human concepts found in all languages, is of fundamental importance, both from a theoretical and a practical point of view, since these concepts provide the basis of the psychic unity of mankind, underlying the clearly visible diversity of human cultures. They also allow us to better understand that diversity itself, because they provide a common measure, without which no precise and meaningful comparisons are possible at all. A set of truly universal (or even near-universal) concepts can provide us with an invaluable tool for interpreting, and explaining all the culture-specific meanings encoded in the language-and-culture systems of the world. It can also provide us with a tool for explaining meanings across cultures in education, business, trade, international relations, and so on.The book contains 13 chapters on individual languages including Japanese (by Masayuki Onishi), Chinese (by Hilary Chappel), Thai (by Anthony Diller), Ewe (Africa, by Felix Ameka), Miskitu languages of South America (by Kenneth Hall), Australian Aboriginal languages Aranda, Yankunytjatjara and Kayardild (by Jean Harkins & David Wilkins, Cliff Goddard, and Nicholas Evans), the Austronesian languages Samoan, Longgu, Acehnese and Mangap-Mbula (by Ulrike Mosel, Deborah Hill, Mark Durie and Robert Bugenhagen), the Papuan language Kalam (by Andrew Pawley), and, last but not least French (by Bert Peters).In addition to the chapters on individual languages the book includes three theoretical chapters; Semantic theory and semantic universals (by Goddard), Introducing lexical primitives (by Goddard and Wierzbicka), and Semantic primitives across languages: a critical review (by Wierzbicka).