Optimisation de l'utilisation de la bande passante dans les réseaux multi-sauts sans-fil PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Optimisation de l'utilisation de la bande passante dans les réseaux multi-sauts sans-fil PDF full book. Access full book title Optimisation de l'utilisation de la bande passante dans les réseaux multi-sauts sans-fil by Simon Odou. Download full books in PDF and EPUB format.
Author: Simon Odou
Publisher:
ISBN:
Category :
Languages : fr
Pages : 111
Get Book Here
Book Description
Dans cette thèse, nous proposons plusieurs algorithmes permettant d’optimiser l’utilisation de la bande passante dans les réseaux sans-fil multi-sauts et ainsi augmenter les débits atteignables. Les réseaux sans-fil multi-sauts sont des réseaux sans-fil dans lesquels les stations communiquent directement entre elles lorsque leurs portées respectives sont suffisantes ou, le cas échéant, via des stations intermédiaires chargées de relayer les flux de façon transparente. Les résultats théoriques prouvent que de tels réseaux disposent d’une capacité par station plus faible que les réseaux traditionnels et obligent ainsi à disposer de mécanismes avancés de gestion et d’optimisation des ressources disponibles. Nous présentons dans une première partie un algorithme d’estimation de la bande passante disponible calculant, pour une station donnée, l’espérance du trafic attendu sur son canal en fonction de la connaissance des flux transitant dans sa zone d’interférence. Cette estimation nous permet ensuite de déterminer un ensemble de contraintes dynamiques sur les débits des flux qui doivent être satisfaites pour que les flux puissent être acceptés sans risquer de surcharger le réseau. Enfin, toujours en gardant les contraintes précédentes satisfaites, nous proposons plusieurs algorithmes pour maximiser les débits atteignables des flux dans le réseau soit en contournant les zones surchargées, soit en adaptant dynamiquement les puissances d’émission. Ces résultats de simulation montrent une amélioration significative par rapport aux travaux existants.
Author: Rob Flickenger
Publisher: "O'Reilly Media, Inc."
ISBN: 9780596005023
Category : Computers
Languages : en
Pages : 190
Get Book Here
Book Description
Building Wireless Community Networks is about getting people online using wireless network technology. The 802.11b standard (also known as WiFi) makes it possible to network towns, schools, neighborhoods, small business, and almost any kind of organization. All that's required is a willingness to cooperate and share resources. The first edition of this book helped thousands of people engage in community networking activities. At the time, it was impossible to predict how quickly and thoroughly WiFi would penetrate the marketplace. Today, with WiFi-enabled computers almost as common as Ethernet, it makes even more sense to take the next step and network your community using nothing but freely available radio spectrum. This book has showed many people how to make their network available, even from the park bench, how to extend high-speed Internet access into the many areas not served by DSL and cable providers, and how to build working communities and a shared though intangible network. All that's required to create an access point for high-speed Internet connection is a gateway or base station. Once that is set up, any computer with a wireless card can log onto the network and share its resources. Rob Flickenger built such a network in northern California, and continues to participate in network-building efforts. His nuts-and-bolts guide covers: Selecting the appropriate equipment Finding antenna sites, and building and installing antennas Protecting your network from inappropriate access New network monitoring tools and techniques (new) Regulations affecting wireless deployment (new) IP network administration, including DNS and IP Tunneling (new) His expertise, as well as his sense of humor and enthusiasm for the topic, makes Building Wireless Community Networks a very useful and readable book for anyone interested in wireless connectivity.
Author: Krishnanand N. Kaipa
Publisher: Springer
ISBN: 3319515950
Category : Technology & Engineering
Languages : en
Pages : 265
Get Book Here
Book Description
This book provides a comprehensive account of the glowworm swarm optimization (GSO) algorithm, including details of the underlying ideas, theoretical foundations, algorithm development, various applications, and MATLAB programs for the basic GSO algorithm. It also discusses several research problems at different levels of sophistication that can be attempted by interested researchers. The generality of the GSO algorithm is evident in its application to diverse problems ranging from optimization to robotics. Examples include computation of multiple optima, annual crop planning, cooperative exploration, distributed search, multiple source localization, contaminant boundary mapping, wireless sensor networks, clustering, knapsack, numerical integration, solving fixed point equations, solving systems of nonlinear equations, and engineering design optimization. The book is a valuable resource for researchers as well as graduate and undergraduate students in the area of swarm intelligence and computational intelligence and working on these topics.
Author: Jesper E. Hansen
Publisher: IET
ISBN: 9780863411106
Category : Technology & Engineering
Languages : en
Pages : 408
Get Book Here
Book Description
This book describes the aspects of antenna test ranges, data processing schemes and measurement schemes.
Author: Rob Flickenger
Publisher: "O'Reilly Media, Inc."
ISBN: 9780596005597
Category : Computers
Languages : en
Pages : 310
Get Book Here
Book Description
Continuing with the successful Hack Series, this title provides real-world working examples of how to make useful things happen with wireless equipment.
Author: Yan Zhang
Publisher: CRC Press
ISBN: 1420064703
Category : Computers
Languages : en
Pages : 518
Get Book Here
Book Description
Cooperative devices and mechanisms are increasingly important to enhance the performance of wireless communications and networks, with their ability to decrease power consumption and packet loss rate and increase system capacity, computation, and network resilience. Considering the wide range of applications, strategies, and benefits associated wit
Author: Francine Krief
Publisher: John Wiley & Sons
ISBN: 1118580893
Category : Technology & Engineering
Languages : en
Pages : 235
Get Book Here
Book Description
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.).
Author: Sheila B. Kamerman
Publisher: Policy Press
ISBN: 1847429033
Category : Business & Economics
Languages : en
Pages : 296
Get Book Here
Book Description
This title covers 15 countries in Europe and beyond bringing together leading academic experts to provide a unique insight into the past, present and future state of this key policy area.
Author: Claude Cohen-Tannoudji
Publisher: John Wiley & Sons
ISBN: 3527345558
Category : Science
Languages : en
Pages : 790
Get Book Here
Book Description
This new, third volume of Cohen-Tannoudji's groundbreaking textbook covers advanced topics of quantum mechanics such as uncorrelated and correlated identical particles, the quantum theory of the electromagnetic field, absorption, emission and scattering of photons by atoms, and quantum entanglement. Written in a didactically unrivalled manner, the textbook explains the fundamental concepts in seven chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * Completing the success story: the third and final volume of the quantum mechanics textbook written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the books comes with a wealth of elaborately explained examples and applications Claude Cohen-Tannoudji was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris where he also studied and received his PhD in 1962. In 1973 he became Professor of atomic and molecular physics at the Collège des France. His main research interests were optical pumping, quantum optics and atom-photon interactions. In 1997, Claude Cohen-Tannoudji, together with Steven Chu and William D. Phillips, was awarded the Nobel Prize in Physics for his research on laser cooling and trapping of neutral atoms. Bernard Diu was Professor at the Denis Diderot University (Paris VII). He was engaged in research at the Laboratory of Theoretical Physics and High Energy where his focus was on strong interactions physics and statistical mechanics. Franck Laloë was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris. His first assignment was with the University of Paris VI before he was appointed to the CNRS, the French National Research Center. His research was focused on optical pumping, statistical mechanics of quantum gases, musical acoustics and the foundations of quantum mechanics.
Author: Institute of Electrical and Electronics Engineers
Publisher:
ISBN:
Category :
Languages : en
Pages : 674
Get Book Here
Book Description
Author: J. Belle
Publisher:
ISBN:
Category : Nuclear fuels
Languages : en
Pages : 146
Get Book Here
Book Description
