Download or read book Defending IEEE 802 11 Based Networks Against Denial of Service Attacks written by Boon H. Tan and published by . This book was released on 2003-12-01 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: The convenience of IEEE 8O2.11-based wireless access networks has led to widespread deployment in the consumer, industrial and military sectors However, this use is predicated on an implicit assumption of confidentiality and availability In addition to widely publicized security flaws in IEEE 8O2.11's basic confidentially mechanisms, the threats to network availability presents any equal, if not greater danger to users of IEEE 8O2.11-based networks It has been successfully demonstrated that IEEE 8O2.11 is highly susceptible to malicious denial-of-service (DoS) attacks targeting its management and media access protocols Computer simulation models have proven to be effective tools in the study of cause and effect in numerous fields This thesis involved the design and implementation of a IEEE 8O2.11-based simulation model using OMNeT++, to investigate the effects of different types of DoS attacks on a IEEE 8O2.11 network, and the effectiveness of corresponding countermeasures.

Download or read book QoS Engineering for a Wireless Hybrid Network of IEEE 802 16 IEEE 802 11e written by Kamal Gakhar and published by . This book was released on 2007 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: La thèse porte sur l'ingénierie de la Qualité de Service sur un réseau radio mixant les technologies IEEE 802.16 et IEEE 802.11. Le projet IROISE, qui suscite cette étude, définit une architecture dans laquelle des points d'accès sont reliés à un Point de Présence (POP) d'opérateur par une BLR ~= 40Ghz, et les points d'accès 802.11 sont accessibles à des usagers fixes, ou peu mobiles (marche à pied). l'argument du projet est d'étudier comment supporter des services nécessitant soit une bande passante garantie, soit de la QoS (en matière de délai ou de gigue) sur une telle architecture. la thèse portera sur la spécification des mécanismes à mettre en oeuvre dans les équipements de la plaque IROISE afin de supporter ces services . Ces équipements sont essentiellement les serveurs localisés au niveau du POP et les équipements couplant technologies IEEE 802.16 et IEEE 802.11.

Download or read book Protocole IEEE 802 11 qualite de service written by and published by Ed. Techniques Ingénieur. This book was released on with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quality of Service Schemes for IEEE 802 11 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Protocole IEEE 802 11 Qualit de service written by Chaudet and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book S curit dans les r seaux sans fil Norme IEEE 802 11 written by Mühlethaler and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book La gestion de la qualit de service temps r el dans les r seaux de capteurs sans fil written by Khalid El Gholami and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le monde des réseaux de capteurs sans fil 'RCSF' a connu de grands progrès au cours de ces dernières années. Ainsi, les RCSF ont pu intégrer divers champs d'application (environnement, militaire, médecine, domotique ...) dont quelques-uns ayant des exigences en termes de qualité de service 'QdS'. Cependant, la garantie de la QdS dans un RCSF pose des problèmes de recherche non triviaux, à cause de la nature peu fiable de la communication sans fil et des limitations des ressources des nœuds RCSF (processeur, mémoire, énergie ...). Dans le cadre de cette thèse, nous nous sommes focalisés sur les protocoles MAC afin d'améliorer le support de QdS dans les RCSF. Plus particulièrement, le standard IEEE 802.15.4. Les mécanismes de conservation d'énergie proposés par ce standard sont efficaces et présentent une flexibilité par rapport aux besoins des applications. Néanmoins, le temps de sommeil des nœuds affecte considérablement le délai de communication, donnant naissance à un compromis énergie/délai. Pour résoudre ce problème, nous avons amélioré ce standard pour un meilleur support des applications temps-réel. L'approche proposée permet de réduire le délai de communication de manière significative, même pour de faibles rapports cycliques, grâce au nouveau format de la supertrame. Les performances ont été validées par simulation et sur des plateformes de nœuds RCSF réelles. Nous avons proposé également un modèle de simulation pour le standard IEEE 802.15.4 sous le simulateur NS-3.

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 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 Rigorous System Design written by Joseph Sifakis and published by . This book was released on 2013-03-20 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deals with the formalization of the design of mixed hardware/software systems. It advocates rigorous system design as a model-based process leading from requirements to correct implementations and presents the current state of the art in system design, discusses its limitations and identifies possible avenues for overcoming them.

Download or read book Building Wireless Community Networks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

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.

Download or read book Wireless Hacks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing with the successful Hack Series, this title provides real-world working examples of how to make useful things happen with wireless equipment.

Download or read book Introduction to Network Security written by Jie Wang and published by John Wiley & Sons. This book was released on 2015-07-10 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory textbook in the important area of network security for undergraduate and graduate students Comprehensively covers fundamental concepts with newer topics such as electronic cash, bit-coin, P2P, SHA-3, E-voting, and Zigbee security Fully updated to reflect new developments in network security Introduces a chapter on Cloud security, a very popular and essential topic Uses everyday examples that most computer users experience to illustrate important principles and mechanisms Features a companion website with Powerpoint slides for lectures and solution manuals to selected exercise problems, available at http://www.cs.uml.edu/~wang/NetSec

Download or read book Application of Big Data for National Security written by Babak Akhgar and published by Butterworth-Heinemann. This book was released on 2015-02-14 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Application of Big Data for National Security provides users with state-of-the-art concepts, methods, and technologies for Big Data analytics in the fight against terrorism and crime, including a wide range of case studies and application scenarios. This book combines expertise from an international team of experts in law enforcement, national security, and law, as well as computer sciences, criminology, linguistics, and psychology, creating a unique cross-disciplinary collection of knowledge and insights into this increasingly global issue. The strategic frameworks and critical factors presented in Application of Big Data for National Security consider technical, legal, ethical, and societal impacts, but also practical considerations of Big Data system design and deployment, illustrating how data and security concerns intersect. In identifying current and future technical and operational challenges it supports law enforcement and government agencies in their operational, tactical and strategic decisions when employing Big Data for national security - Contextualizes the Big Data concept and how it relates to national security and crime detection and prevention - Presents strategic approaches for the design, adoption, and deployment of Big Data technologies in preventing terrorism and reducing crime - Includes a series of case studies and scenarios to demonstrate the application of Big Data in a national security context - Indicates future directions for Big Data as an enabler of advanced crime prevention and detection

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.

Download or read book The Johns Hopkins Guide to Digital Media written by Marie-Laure Ryan and published by JHU Press. This book was released on 2014-04-15 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first systematic, comprehensive reference covering the ideas, genres, and concepts behind digital media. The study of what is collectively labeled “New Media”—the cultural and artistic practices made possible by digital technology—has become one of the most vibrant areas of scholarly activity and is rapidly turning into an established academic field, with many universities now offering it as a major. The Johns Hopkins Guide to Digital Media is the first comprehensive reference work to which teachers, students, and the curious can quickly turn for reliable information on the key terms and concepts of the field. The contributors present entries on nearly 150 ideas, genres, and theoretical concepts that have allowed digital media to produce some of the most innovative intellectual, artistic, and social practices of our time. The result is an easy-to-consult reference for digital media scholars or anyone wishing to become familiar with this fast-developing field.