Etude Et Conception Darchitectures Haut Debit Pour La Modulation Et La Demodulation Numeriques

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Etude et conception d'architectures haut-débit pour la modulation et la démodulation numériques

Author : Gérald Arnould
Publisher :
ISBN 13 :
Total Pages : 122 pages
Book Rating : 4.:/5 (793 download)

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Book Synopsis Etude et conception d'architectures haut-débit pour la modulation et la démodulation numériques by : Gérald Arnould

Download or read book Etude et conception d'architectures haut-débit pour la modulation et la démodulation numériques written by Gérald Arnould and published by . This book was released on 2006 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce mémoire porte sur l'adaptation au domaine tout numérique des techniques de modulation et de démodulation utilisées pour les transmissions de données dans les protocoles de communications modernes. Le passage au "tout numérique" provoque de nombreux changements, à la fois dans la méthodologie de conception, et dans les méthodes d'adaptation des algorithmes à l'architecture. En effet, la conversion des techniques analogiques en numérique s'avère générer de nombreuses contraintes qui brident les performances du système résultant. Aussi, ce travail définit de nouveaux algorithmes, qui s'affranchissent des structures complexes présentant des chemins critiques difficiles à réduire, telles les boucles de rétroaction très souvent utilisées dans les architectures analogiques et qui ne sont pas toujours adaptées aux composants numériques. L’architecture détaillée d'un modulateur de phase et d’amplitude, et celle d'un démodulateur associé sont présentées et implantées sur un circuit FPGA. Leurs performances peuvent être supérieures d'un facteur 8 à celles obtenues par simple transposition des architectures analogiques existantes sur un circuit numérique. Elles présentent en outre, de bonnes capacités d'évolution. En effet, la structure parallèle de ces architectures permet d’atteindre un débit de données élevé, et leur conception modulaire permet de les réutiliser par blocs dans le cadre d’un processeur réseau complet

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.

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)

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.

Governance, Regulation and Powers on the Internet

Author : Eric Brousseau
Publisher : Cambridge University Press
ISBN 13 : 1107013429
Total Pages : 463 pages
Book Rating : 4.1/5 (7 download)

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Book Synopsis Governance, Regulation and Powers on the Internet by : Eric Brousseau

Download or read book Governance, Regulation and Powers on the Internet written by Eric Brousseau and published by Cambridge University Press. This book was released on 2012-04-23 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: An interdisciplinary survey of the issues surrounding the governance of the Internet.

Green Networking

Author : Francine Krief
Publisher : John Wiley & Sons
ISBN 13 : 1118580893
Total Pages : 235 pages
Book Rating : 4.1/5 (185 download)

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Book Synopsis Green Networking by : Francine Krief

Download or read book Green Networking written by Francine Krief and published by John Wiley & Sons. This book was released on 2012-12-13 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on green networking, which is an important topic for the scientific community composed of engineers, academics, researchers and industrialists working in the networking field. Reducing the environmental impact of the communications infrastructure has become essential with the ever increasing cost of energy and the need for reducing global CO2 emissions to protect our environment. Recent advances and future directions in green networking are presented in this book, including energy efficient networks (wired networks, wireless networks, mobile networks), adaptive networks (cognitive radio networks, green autonomic networking), green terminals, and industrial research into green networking (smart city, etc.).

Engineering Acoustics

Author : Michael Möser
Publisher : Springer Science & Business Media
ISBN 13 : 3540927239
Total Pages : 540 pages
Book Rating : 4.5/5 (49 download)

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Book Synopsis Engineering Acoustics by : Michael Möser

Download or read book Engineering Acoustics written by Michael Möser and published by Springer Science & Business Media. This book was released on 2009-09-01 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Suitable for both individual and group learning, Engineering Acoustics focuses on basic concepts and methods to make our environments quieter, both in buildings and in the open air. The author’s tutorial style derives from the conviction that understanding is enhanced when the necessity behind the particular teaching approach is made clear. He also combines mathematical derivations and formulas with extensive explanations and examples to deepen comprehension. Fundamental chapters on the physics and perception of sound precede those on noise reduction (elastic isolation) methods. The last chapter deals with microphones and loudspeakers. Moeser includes major discoveries by Lothar Cremer, including the optimum impedance for mufflers and the coincidence effect behind structural acoustic transmission. The appendix gives a short introduction on the use of complex amplitudes in acoustics.

Coherent Optical Processing

Author : Henry J. Caulfield
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (177 download)

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Book Synopsis Coherent Optical Processing by : Henry J. Caulfield

Download or read book Coherent Optical Processing written by Henry J. Caulfield and published by . This book was released on 1975 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technology and the City

Author : Tan Yigitcanlar
Publisher : Routledge
ISBN 13 : 1317575687
Total Pages : 282 pages
Book Rating : 4.3/5 (175 download)

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Book Synopsis Technology and the City by : Tan Yigitcanlar

Download or read book Technology and the City written by Tan Yigitcanlar and published by Routledge. This book was released on 2016-04-28 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interplay between smart urban technologies and city development is a relatively uncharted territory. Technology and the City aims to fill that gap, exploring the growing importance of smart technologies and systems in contemporary cities, and providing an in-depth understanding of both theoretical and practical aspects of smart urban technology adoption, and its implications for our cities. Beginning with an elaboration of the historical significance of technologies in economic growth, social progress and urban development, Yigitcanlar introduces the most prominent smart urban information technologies. The book showcases significant smart city practices from across the globe that uses smart urban technologies and systems most effectively. It explores the role of these technologies and asks how they can be adopted into the planning, development and management processes of cities for sustainable urban futures. This pioneering volume contributes to the conceptualisation and practice of smart technology and system adoption in our cities by disseminating both conceptual and empirical research findings with real-world best practice applications. With a multidisciplinary approach to themes of technology and urban development, this book is a key reference source for scholars, practitioners, consultants, city officials, policymakers and urban technology enthusiasts.

Cognitive Radio Systems

Author : Wei Wang
Publisher :
ISBN 13 : 9789535158608
Total Pages : 242 pages
Book Rating : 4.1/5 (586 download)

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Book Synopsis Cognitive Radio Systems by : Wei Wang

Download or read book Cognitive Radio Systems written by Wei Wang and published by . This book was released on 2009 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cognitive radio is a hot research area for future wireless communications in the recent years. In order to increase the spectrum utilization, cognitive radio makes it possible for unlicensed users to access the spectrum unoccupied by licensed users. Cognitive radio let the equipments more intelligent to communicate with each other in a spectrum-aware manner and provide a new approach for the co-existence of multiple wireless systems. The goal of this book is to provide highlights of the current research topics in the field of cognitive radio systems. The book consists of 17 chapters, addressing various problems in cognitive radio systems.

Ultra-Dense Networks for 5G and Beyond

Author : Trung Q. Duong
Publisher : John Wiley & Sons
ISBN 13 : 1119473691
Total Pages : 312 pages
Book Rating : 4.1/5 (194 download)

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Book Synopsis Ultra-Dense Networks for 5G and Beyond by : Trung Q. Duong

Download or read book Ultra-Dense Networks for 5G and Beyond written by Trung Q. Duong and published by John Wiley & Sons. This book was released on 2019-04-15 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers comprehensive insight into the theory, models, and techniques of ultra-dense networks and applications in 5G and other emerging wireless networks The need for speed—and power—in wireless communications is growing exponentially. Data rates are projected to increase by a factor of ten every five years—and with the emerging Internet of Things (IoT) predicted to wirelessly connect trillions of devices across the globe, future mobile networks (5G) will grind to a halt unless more capacity is created. This book presents new research related to the theory and practice of all aspects of ultra-dense networks, covering recent advances in ultra-dense networks for 5G networks and beyond, including cognitive radio networks, massive multiple-input multiple-output (MIMO), device-to-device (D2D) communications, millimeter-wave communications, and energy harvesting communications. Clear and concise throughout, Ultra-Dense Networks for 5G and Beyond - Modelling, Analysis, and Applications offers a comprehensive coverage on such topics as network optimization; mobility, handoff control, and interference management; and load balancing schemes and energy saving techniques. It delves into the backhaul traffic aspects in ultra-dense networks and studies transceiver hardware impairments and power consumption models in ultra-dense networks. The book also examines new IoT, smart-grid, and smart-city applications, as well as novel modulation, coding, and waveform designs. One of the first books to focus solely on ultra-dense networks for 5G in a complete presentation Covers advanced architectures, self-organizing protocols, resource allocation, user-base station association, synchronization, and signaling Examines the current state of cell-free massive MIMO, distributed massive MIMO, and heterogeneous small cell architectures Offers network measurements, implementations, and demos Looks at wireless caching techniques, physical layer security, cognitive radio, energy harvesting, and D2D communications in ultra-dense networks Ultra-Dense Networks for 5G and Beyond - Modelling, Analysis, and Applications is an ideal reference for those who want to design high-speed, high-capacity communications in advanced networks, and will appeal to postgraduate students, researchers, and engineers in the field.

DIGITAL COMMUNICATION SYSTEMS.

Author : BERNARD. LANGTON SKLAR (CHARAN. HARRIS, FREDRIC.)
Publisher :
ISBN 13 : 9780137035328
Total Pages : pages
Book Rating : 4.0/5 (353 download)

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Book Synopsis DIGITAL COMMUNICATION SYSTEMS. by : BERNARD. LANGTON SKLAR (CHARAN. HARRIS, FREDRIC.)

Download or read book DIGITAL COMMUNICATION SYSTEMS. written by BERNARD. LANGTON SKLAR (CHARAN. HARRIS, FREDRIC.) and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Designing Smart Homes

Author : Juan Carlos Augusto
Publisher : Springer Science & Business Media
ISBN 13 : 354035994X
Total Pages : 193 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Designing Smart Homes by : Juan Carlos Augusto

Download or read book Designing Smart Homes written by Juan Carlos Augusto and published by Springer Science & Business Media. This book was released on 2006-06-29 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: The area of smart homes is fast developing as an emergent area which attracts the synergy of several areas of science. This volume offers a collection of contributions addressing how artificial intelligence (AI), one of the core areas of computer science, can bring the growing area of smart homes to a higher level of functionality where homes can truly realize the long standing dream of proactively helping their inhabitants in an intelligent way. After an introductory section to describe a smart home scenario and to provide some basic terminology, the following 9 sections turn special attention to a particular exemplar application scenario (provision of healthcare and safety related services to increase the quality of life) exploring the application of specific areas of AI to this scenario.

Digital Communications: Fundamentals & Applications, 2/E

Author : Sklar
Publisher : Pearson Education India
ISBN 13 : 9788131720929
Total Pages : 1168 pages
Book Rating : 4.7/5 (29 download)

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Book Synopsis Digital Communications: Fundamentals & Applications, 2/E by : Sklar

Download or read book Digital Communications: Fundamentals & Applications, 2/E written by Sklar and published by Pearson Education India. This book was released on 2009-09 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt: