Le green networking : vers des réseaux efficaces en consommation énergétique

Le green networking : vers des réseaux efficaces en consommation énergétique
Author: KRIEF Francine
Publisher: Lavoisier
Total Pages: 274
Release: 2012-09-14
Genre:
ISBN: 2746282755

Ce livre traite d'un nouveau paradigme de communication, appelé green networking, qui est particulièrement important pour toute la communauté scientifique (ingénieurs, universitaires, chercheurs et industriels) travaillant dans le domaine des réseaux. En effet réduire l'impact environnemental des systèmes de communication est un enjeu majeur avec l'augmentation constante du coût de l'énergie et la nécessité de réduire les émissions mondiales de CO2 pour protéger notre environnement. Cet ouvrage présente les avancées récentes et les orientations futures qui permettront de relever les défis du green networking et de disposer ainsi de réseaux (filaires, sans fil et mobiles) et d'équipements de communications efficaces en énergie sur lesquels s'appuieront également les nouvelles générations d'infrastructures urbaines.

Vers des réseaux hétérogènes sans fil efficaces en consommation énergétique

Vers des réseaux hétérogènes sans fil efficaces en consommation énergétique
Author: Hocine Abdelhakim Ameur
Publisher:
Total Pages: 0
Release: 2016
Genre:
ISBN:

L'environnement subit des dégradations importantes causées par l'utilisation des énergies non renouvelables. Plus particulièrement, le secteur des technologies de l'information et de la communication est responsable de l'émission de 2% du taux mondial de carbone. Les statistiques montrent que l'énergie consommée par les réseaux sans fil constitue 10% de l'énergie globale consommée annuellement. Avec la prolifération des objets connectés, les réseaux cellulaires deviennent le moyen de communication le plus utilisé. De ce fait, ces réseaux commencent à adopter un déploiement hétérogène afin de faire face au manque de capacité dans les infrastructures actuelles.Dans cette thèse, nous nous concentrons principalement sur l'étude de l'économie d'énergie dans les réseaux cellulaires et en particulier, l'énergie consommée par les réseaux cellulaires hétérogènes (Heterogeneous Networks, HetNet), connus pour leur rôle principal dans les futures architectures de communication, à savoir la 5G. Les HetNets se distinguent par l'utilisation de différents moyens et technologies d'accès. En plus des stations de base conventionnelles, ces réseaux introduisent le concept des «Small Cells» qui se caractérise par l'utilisation de Microcells, Picocells et/ou Femtocells. Cette diversité offre plusieurs avantages au niveau de l'efficacité spectrale, de la capacité et de la couverture réseau.

Innovate Bristol

Innovate Bristol
Author: Sven Boermeester
Publisher:
Total Pages:
Release: 2019-12
Genre:
ISBN: 9781949677072

Innovate Bristol highlights and celebrates those companies and individuals that are actively working at building a better tomorrow for all. Innovation Ecosystems thrive through the involvement and support of companies and individuals from all industries, which is why the Innovate series not only focuses on the innovators but also those people whom the Innovation Ecosystem, would not be able to thrive without.

Green Networking

Green Networking
Author: Francine Krief
Publisher: John Wiley & Sons
Total Pages: 235
Release: 2012-12-13
Genre: Technology & Engineering
ISBN: 1118580893

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.).

ICREEC 2019

ICREEC 2019
Author: Ahmed Belasri
Publisher: Springer Nature
Total Pages: 659
Release: 2020-06-10
Genre: Technology & Engineering
ISBN: 9811554447

This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Database Anonymization

Database Anonymization
Author: Josep Domingo-Ferrer
Publisher: Morgan & Claypool Publishers
Total Pages: 138
Release: 2016-01-01
Genre: Computers
ISBN: 1627058443

The current social and economic context increasingly demands open data to improve scientific research and decision making. However, when published data refer to individual respondents, disclosure risk limitation techniques must be implemented to anonymize the data and guarantee by design the fundamental right to privacy of the subjects the data refer to. Disclosure risk limitation has a long record in the statistical and computer science research communities, who have developed a variety of privacy-preserving solutions for data releases. This Synthesis Lecture provides a comprehensive overview of the fundamentals of privacy in data releases focusing on the computer science perspective. Specifically, we detail the privacy models, anonymization methods, and utility and risk metrics that have been proposed so far in the literature. Besides, as a more advanced topic, we identify and discuss in detail connections between several privacy models (i.e., how to accumulate the privacy guarantees they offer to achieve more robust protection and when such guarantees are equivalent or complementary); we also explore the links between anonymization methods and privacy models (how anonymization methods can be used to enforce privacy models and thereby offer ex ante privacy guarantees). These latter topics are relevant to researchers and advanced practitioners, who will gain a deeper understanding on the available data anonymization solutions and the privacy guarantees they can offer.

How Culture Shapes the Climate Change Debate

How Culture Shapes the Climate Change Debate
Author: Andrew J. Hoffman
Publisher: Stanford University Press
Total Pages: 121
Release: 2015-03-11
Genre: Business & Economics
ISBN: 0804795053

Though the scientific community largely agrees that climate change is underway, debates about this issue remain fiercely polarized. These conversations have become a rhetorical contest, one where opposing sides try to achieve victory through playing on fear, distrust, and intolerance. At its heart, this split no longer concerns carbon dioxide, greenhouse gases, or climate modeling; rather, it is the product of contrasting, deeply entrenched worldviews. This brief examines what causes people to reject or accept the scientific consensus on climate change. Synthesizing evidence from sociology, psychology, and political science, Andrew J. Hoffman lays bare the opposing cultural lenses through which science is interpreted. He then extracts lessons from major cultural shifts in the past to engender a better understanding of the problem and motivate the public to take action. How Culture Shapes the Climate Change Debate makes a powerful case for a more scientifically literate public, a more socially engaged scientific community, and a more thoughtful mode of public discourse.

Five Superpowers for Co-Creators

Five Superpowers for Co-Creators
Author: Katrin Muff
Publisher: Routledge
Total Pages: 186
Release: 2018-10-26
Genre: Business & Economics
ISBN: 0429881940

This groundbreaking and timely book provides change makers, organizations and facilitators with practical tools to initiate and conduct multi-stakeholder co-creation processes. Such processes are of critical importance in times of rapid change, where mega trends and grand challenges influence the market dynamics of business in entirely new ways. The book provides a concrete pathway for business to become future-ready by building capacity to work outside its traditional boundaries. The book unfolds the shift of multi-stakeholder teams from a state of competition to a state of collaboration, addressing the inner and outer dimensions of such a change. The five superpowers identified in the book are: (1) the genuine engagement of individuals, (2) collective solutions of groups, (3) transformative spaces created by facilitators, (4) the building blocks of co-creation, and (5) an effective strategy process for organizations. The book explores the challenges to achieve each of these superpowers. It also shares the stories of "heroes of transformation" and explores what have been the reasons for their success. The Sustainable Development Goals (SDGs), the grand challenges, the future of work...call it what you want, the future is here and organizations, change makers and facilitators need nothing less than these superpowers to collaborate with other players to solve these wicked problems.

Terra 2008

Terra 2008
Author: Leslie Rainer
Publisher: Getty Publications
Total Pages: 438
Release: 2011-06-14
Genre: Architecture
ISBN: 1606060430

Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.

Network Information Theory

Network Information Theory
Author: Abbas El Gamal
Publisher: Cambridge University Press
Total Pages: 666
Release: 2011-12-08
Genre: Technology & Engineering
ISBN: 1139503146

This comprehensive treatment of network information theory and its applications provides the first unified coverage of both classical and recent results. With an approach that balances the introduction of new models and new coding techniques, readers are guided through Shannon's point-to-point information theory, single-hop networks, multihop networks, and extensions to distributed computing, secrecy, wireless communication, and networking. Elementary mathematical tools and techniques are used throughout, requiring only basic knowledge of probability, whilst unified proofs of coding theorems are based on a few simple lemmas, making the text accessible to newcomers. Key topics covered include successive cancellation and superposition coding, MIMO wireless communication, network coding, and cooperative relaying. Also covered are feedback and interactive communication, capacity approximations and scaling laws, and asynchronous and random access channels. This book is ideal for use in the classroom, for self-study, and as a reference for researchers and engineers in industry and academia.