Download or read book Vers une solution de contr le d admission s curis e dans les r seaux mesh sans fil written by Juliette Dromard and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les réseaux mesh sans fil (Wireless Mesh Networks-WMNs) sont des réseaux facilement déployables et à faible coût qui peuvent étendre l'Internet dans des zones où les autres réseaux peuvent difficilement accéder. Cependant, plusieurs problèmes de qualité de service (QoS) et de sécurité freinent le déploiement à grande échelle des WMNs. Dans cette thèse, nous proposons un modèle de contrôle d'admission (CA) et un système de réputation afin d'améliorer les performances du réseau mesh et de le protéger des nœuds malveillants. Notre système de CA vise à assurer la QoS des flux admis dans le réseau en termes de bande passante et de délai tout en maximisant l'utilisation de la capacité du canal. L'idée de notre solution est d'associer au contrôle d'admission une planification de liens afin d'augmenter la bande passante disponible. Nous proposons également un système de réputation ayant pour but de détecter les nœuds malveillants et de limiter les fausses alertes induites par la perte de paquets sur les liens du réseau. L'idée de notre solution est d'utiliser des tests statistiques comparant la perte de paquets sur les liens avec un modèle de perte préétabli. De plus, il comprend un système de surveillance composé de plusieurs modules lui permettant détecter un grand nombre d'attaques. Notre CA et notre système de réputation ont été validés, les résultats montrent qu'ils atteignent tous deux leurs objectifs.
Download or read book S curit Des R seaux Mesh Sans Fil written by Omar Cheikhrouhou and published by Omniscriptum. This book was released on 2010 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: R sum Les r seaux mesh sans fil repr sentent la technologie sans fil la plus r cente. Cependant, la s curit reste un v ritable d fi pour cette technologie. Dans ce rapport, nous proposons des solutions pour la s curit des r seaux mesh sans fil multi-sauts. D'abord, nous avons propos une extension du m canisme d'authentification du protocole 802.1x afin de l'adapter un environnement multi-sauts et en particulier les r seaux mesh. Ensuite, nous avons d fini des architectures de r seaux mesh sans fil utilisant le protocole PANA comme m canisme d'authentification et de contr le d'acc s. Enfin, nous avons propos une nouvelle m thode d'authentification EAP particuli rement adapt e l'environnement des mobiles. Cette m thode a t formellement valid e.
Download or read book Principles of Nuclear Medicine written by Henry N. Wagner and published by W B Saunders Company. This book was released on 1995 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2nd Edition of Dr. Wagner's Principles of Nuclear Medicine features cerebrovascular disease, brain tumors, pulmonary thromboembolic disease, cardiomyopathy, hepatobiliary dysfunction, sports injury, and more.
Download or read book Health Effects of Environmental Pollution written by and published by . This book was released on 1973 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Graph Colouring and the Probabilistic Method written by Michael Molloy and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, many major advances have been made in the field of graph coloring via the probabilistic method. This monograph, by two of the best on the topic, provides an accessible and unified treatment of these results, using tools such as the Lovasz Local Lemma and Talagrand's concentration inequality.
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.
Download or read book A New Pocket Dictionary of the French and English Languages in Two Parts written by Thomas Nugent and published by . This book was released on 1770 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arrian on Coursing written by Flavius Arrian and published by . This book was released on 1831 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book A Call to Heal written by Ian Renwick McWhinney and published by . This book was released on 2013-02 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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)
Download or read book Game Theory for Networking Applications written by Ju Bin Song and published by Springer. This book was released on 2018-08-20 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides recent results of game theory for networking applications. The contributors address the major opportunities and challenges in applying traditional game theory as well as intelligent game theory to the understanding and designing of modern network systems, with emphasis on both new analytical techniques and novel application scenarios. After an overview of game theory for networks, the book narrows in on game theory in communications, game theory in wireless networks, and game theory applications. The book features contributions from researchers and professionals around the world. Presents a variety of perspectives on game theory for networking applications; Shows how game theory can apply to the study of data traffic, new generation networks, and smartgrid; Includes recent results of applied game theory for networks, providing some technical progresses in GAMENETS.
Download or read book 101 Life Skills Games for Children written by Bernie Badegruber and published by Turner Publishing Company. This book was released on 2011-01-01 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: How do you teach tolerance, self-awareness, and responsibility? How can you help children deal with fear, mistrust, or aggression? Play a game with them! Games are an ideal way to help children develop social and emotional skills; they are exciting, relaxing, and fun. 101 LIFE SKILLS GAMES FOR CHILDREN: LEARNING, GROWING, GETTING ALONG (Ages 6-12) is a resource that can help children understand and deal with problems that arise in daily interactions with other children and adults. These games help children develop social and emotional skills and enhance self-awareness. The games address the following issues: dependence, aggression, fear, resentment, disability, accusations, boasting, honesty, flexibility, patience, secrets, conscience, inhibitions, stereotypes, noise, lying, performance, closeness, weaknesses, self confidence, fun, reassurance, love, respect, integrating a new classmate, group conflict. Organized in three main chapters: (I-Games, You-Games and We-Games), the book is well structured and easily accessible. It specifies an objective for every game, gives step-by-step instructions, and offers questions for reflection. It provides possible variations for each game, examples, tips, and ideas for role plays. Each game contains references to appropriate follow-up games and is illustrated with charming drawings.
Download or read book Max s Sandwich Book written by Max Halley and published by Bonnier Publishing Ltd.. This book was released on 2018-05-17 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE SUNDAY TIMES BESTSELLER AS SEEN ON SUNDAY BRUNCH "GENIUS ... CHANGED THE WAY I'M GOING TO EAT FROM NOW ON ... THESE SANDWICHES ARE EPIC!" THE HAIRY BIKERS Max's Sandwich Book is the ultimate guide to creating perfection between two slices of bread. Max Halley owns Britain's most amazing sandwich shop. After working in some of the country's best restaurants, he realised that the sandwich, humanity's greatest invention, was due a renaissance. So Max decided to open his own place and reinvent the sandwich forever. Inside this book you will find: · Award-winning creations from his shop · Inspired variations on classic sandwiches · Brilliant, delicious ways to use your leftovers · Sandwiches for breakfast · Sandwiches for dinner · Sandwiches for dessert · And more than 100 recipes for making your own ingenious creations at home. Ham, Egg & Chips never tasted so good. Max is the owner of Max's Sandwich Shop in Crouch End, winner of the Observer Food Monthly Award for Best Cheap Eat in 2015. "Amazing" Russell Norman, author of Polpo "Max is a sensation!" Meera Sodha "The Ham, Egg & Chips is the best sandwich I've ever eaten in my life" Simon Rimmer, Sunday Brunch "Very, very good" Evening Standard
Download or read book Applied Reactor Physics written by Alain Hébert and published by Presses inter Polytechnique. This book was released on 2009 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanodevices for Microwave and Millimeter Wave Applications written by Isabelle Huynen and published by MDPI. This book was released on 2020-06-16 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microwave and millimeter wave frequency range is nowadays widely exploited in a large variety of fields including (wireless) communications, security, radar, spectroscopy, but also astronomy and biomedical, to name a few. This Special Issue focuses on the interaction between the nanoscale dimensions and centimeter to millimeter wavelengths. This interaction has been proven to be efficient for the design and fabrication of devices showing enhanced performance. Novel contributions are welcome in the field of devices based on nanoscaled geometries and materials. Applications cover, but not are limited to, electronics, sensors, signal processing, imaging and metrology, all exploiting nanoscale/nanotechnology at microwave and millimeter waves. Contributions can take the form of short communications, regular or review papers.
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.
