Cette thèse aborde des problèmes liés à deux aspects majeurs de l'évolution d'Internet : l'aspect«comportemental», qui correspond aux nouvelles interactions entre les utilisateurs et le réseau, et l'aspect «structurel», lié aux changements d'Internet d'un point de vue architectural.Le manuscrit est composé d'un chapitre introductif qui donne les grandes lignes de recherche de ce travail de thèse, suivi d'un chapitre consacré à la description de l'état de l'art sur les deux aspects mentionnés ci-dessus. Parmi les solutions proposées par la communauté scientifique pour s'adapter à l'évolution d'Internet, deux nouveaux paradigmes réseaux sont particulièrement décrits : Information- Centric Networking (ICN) et Software-Defined Networking (SDN).La thèse continue avec la proposition de «Caesar», un dispositif réseau, inspiré par ICN, capable de gérer la distribution de contenus à partir de primitives de routage basées sur le nom des données et non les adresses des serveurs. Caesar est présenté dans deux chapitres, qui décrivent l'architecture et deux des principaux modules : le relayage et la gestion de la traçabilité des requêtes.La suite du manuscrit décrit un outil mathématique pour la détection efficace de boucles dans un réseau SDN d'un point de vue théorique. Les améliorations de l'algorithme proposé par rapport à l'état de l'art sont discutées. „,La thèse se conclue par un résumé des principaux résultats obtenus et une présentation des travaux en cours et futurs. / This thesis addresses two major aspects of the Internet evolution problem: a behavioral aspect, corresponding to a new type of interactions between users and the network, and a structural aspect, which refers to the evolution problem from an architectural point of view.The manuscript consists of an introductory chapter which outlines the research directions of this thesis, followed by a chapter on the description of the state of the art on the two aforementioned aspects.Among the solutions proposed by the scientific community to adapt to the evolution of the Internet, two new network paradigms are described: Information- Centric Networking (ICN) and Software-Defined Networking (SDN).The thesis continues with the description of "Caesar", a network device, inspired by ICN, capable of managing the distribution of content using forwarding primitives based on the content name and not a server address. Caesar is presented in two chapters describing the architecture of two main modules: theforwarding module, and the pending request management.The second part of the manuscript describes a mathematical tool for the effective loop detection in an SDN network from a theoretical point of view. Some algorithms are proposed and the improvements with respect ta the prior work are discussed.The thesis is concluded with a summary of the main results and a presentation of current and future work.

The General Direction Routing Protocol (GDRP) is a Wireless Sensor Network (WSN) multi-path routing protocol which abstracts localization information (commonly GPS coordinates) into relative direction information in order to perform routing decisions. By generating relative direction information GDRP is able to operate with fewer precision requirements than other protocols. This abstraction also allows the integration of other emerging hardware-based localization techniques, for example, Beamforming Sensor Arrays. GDRP does not specifically address the next hop a packet should take, but instead specifies a direction it should travel. This direction abstraction allows for multiple paths to be taken through the network thus enhancing network robustness to node mobility and failures. This indirect addressing scheme also provides a solution to sensor node unique identification. GDRP is simulated in a custom simulator written in Java. This simulator supports interfaces for multiple protocols for layers 1, 2, 3, and 7 of the OSI model. For performance comparisons, GDRP is compared against multiple WSN routing protocols. GDRP operates with a significantly lower setup cost in terms of bytes transmitted and a lower setup latency for networks of varying sizes. It also demonstrates an exponentially lower routing cost when compared to another multi- path routing protocol due to a more efficient packet propagation in the network.

Facebook is the reigning king of Social Networking Sites (SNSs). Due to Facebook’s impact on current culture, researchers have been focused on how it interacts with its members on a variety of issues including well-being, personal identity, personality type, and motivation. While the topics of personality type and motivation have been investigated separately, their possible relationship has not been examined until now. Participants consisted of 415 students from the University of Central Florida were surveyed with an International Personality Item Pool (IPIP), a Facebook Intensity Survey, and a Facebook Motivation Scale. Results showed that the personality traits of agreeableness, conscientiousness, and emotional stability were positively related to intrinsic and extrinsic motivation to make posts on Facebook, extraversion was found to be related to extrinsic motivation to make posts, and intellect was found to have almost no relationship to motivation. In addition, participants who were higher in the traits of agreeableness, conscientiousness, and emotional stability were more likely to be more intensely involved in Facebook than those who were high in extraversion and intellect. Finally, I found that participants who were more intensely involved in Facebook experienced more motivation to make posts on Facebook.

Network administration has become more difficult as the number of Internet users has grown and customer usage patterns have changed over time. Rapidly increasing subscriber bases, data intensive applications (such as streaming audio and video), heavy Web browsing, and large file downloads require significant resources and may tax existing network bandwidth. Reliability and quality of service are becoming serious issues for service providers across the country. Due to the dynamic nature of the information technology (IT) sector in general, it is difficult to predict future network usage patterns or what types of applications may be available, and how these applications may be used over time. This research presents a methodology to facilitate capacity planning and to improve the evaluation of network performance for connection-based networks using the Virginia Tech modem pool as a test bed. The abstract research question is can innovative business strategies be employed in lieu of, or in addition to, traditional management practices such as adding capacity in order to improve the performance of a dialup network? Examples of such strategies or business rules may include limiting the duration of an online session or limiting the number of times a given customer can dial into the pool in a specified time period. A complete network traffic characterization is conducted based on service time and interarrival time variables. A longitudinal analysis is performed to examine how traffic patterns have changed over time. Finally, a simulation model is utilized to examine how imposing different business rules during peak-periods of operation can reduce the blocking probability and improve the overall level-of-service. The potential contribution of this research appears to be significant based on the lack of existing literature. / Ph. D.

ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California / The iNET project was launched to foster network based instrumentation and telemetry. The program is currently implementing an operational demonstration. The operational demonstration will involve installing and using a network based instrumentation system on an H-60, helicopter. This demonstration will be used as a learning exercise for the implementation of network technologies. Specifically this paper will explore the operational challenges that are expected to be encountered while performing the installation and in the use of the network based instrumentation and telemetry system.

International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California / The next 25 years will bring about a revolution in telemetry acquisition and processing. Airborne systems will become smaller and faster, providing additional monitoring and processing capabilities to test vehicles. In addition, ultra-high speed on-board data networks will provide communications between data collection and processing units. The telemetry platforms of tomorrow will be required to collect the entire contents of the data network, in a manner similar to today’s MIL-STD 1553 technology. The ground station of tomorrow will be required to process this bus information and provide it to the users for analysis. Ground station components, including intelligent front-ends and host processors could easily be replaced by a combination of on-board communication network processors (similar to the current 1553 processors) linked to a ground system data network. Processing could be shifted to the vehicle while ground functions remain dedicated to recording and analysis. Specialized workstations will provide for user analysis, history recording, and display. Ground networks will use shared (reflected) memory concepts to provide for addition of unlimited workstations separated by much greater distances than are associated with today’s shared memory systems.

International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / In the commercial marketplace, Java has emerged as the preeminent standard for platform-independent application development. Many reasons for this include platform independence, robustness, effective distribution models, security effectiveness, and a rich set of application programming interfaces (APIs). This paper will provide insight into the design of the Java platform as it relates to the development of telemetry systems. Specific elements of Java will be explored to better understand how to take advantage of a Java platform. The paper will conclude with examples showing Java's effectiveness on overall software development and deployment, the benefits of reduced new code implementations, and how deploying this unique software platform will change the software paradigm in the real-time environment.

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