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Статті в журналах з теми "Réseaux virtuels et slicing":
Auzac de Lamartinie, Véronique d'. "Bestiaires et anges virtuels de l’art contemporain." Figures de l'Art. Revue d'études esthétiques 6, no. 1 (2002): 415–30. http://dx.doi.org/10.3406/fdart.2002.1324.
McNutt, Kathleen. "Research Note: Do Virtual Policy Networks Matter? Tracing Network Structure Online." Canadian Journal of Political Science 39, no. 2 (June 2006): 391–405. http://dx.doi.org/10.1017/s0008423906060161.
Bordet, Joëlle. "Les réseaux sociaux et les adolescents des quartiers populaires." Topique 160, no. 1 (January 1, 2024): 69–80. http://dx.doi.org/10.3917/top.160.0069.
McNutt, Kathleen. "Virtual Policy Networks: Where all Roads Lead to Rome." Canadian Journal of Political Science 43, no. 4 (December 2010): 915–35. http://dx.doi.org/10.1017/s0008423910000752.
Chehab, Yasmine, Caroline Levasseur, and François Bowen. "De l’école au cyberespace, le phénomène de l’intimidation en ligne chez les jeunes : état de la recherche et de l’intervention." Articles 51, no. 1 (September 9, 2016): 495–515. http://dx.doi.org/10.7202/1037356ar.
Kiyindou, Alain, and Théodora Miéré Pélage. "Réseaux virtuels, reconstruction du lien social et de l’identité dans la diaspora noire." Études de communication, no. 38 (June 30, 2012): 189–201. http://dx.doi.org/10.4000/edc.3425.
Foucart, Jean-Michel, Luc Gillibert, Augustin Chavanne, and Xavier Ripoche. "Le Deep Learning en orthodontie : vers une relation patient-praticien repensée…" Revue d'Orthopédie Dento-Faciale 55, no. 1 (February 2021): 73–87. http://dx.doi.org/10.1051/odfen/2021006.
Langeard, Eric. "La place des services de qualité dans une économie mondiale." Décisions Marketing N° 16, no. 1 (January 1, 1999): 53–56. http://dx.doi.org/10.3917/dm.016.0053.
Gozlan, Angélique. "Les groupes virtuels au sein des réseaux sociaux : la virtualisation des liens et ses enjeux sur l’organisation groupale." Revue de psychothérapie psychanalytique de groupe 70, no. 1 (2018): 21. http://dx.doi.org/10.3917/rppg.070.0021.
Grohens, M., and R. Bocher. "PSYGÉ – Numérique, le new deal de la psychiatrie en 2035 ?" European Psychiatry 30, S2 (November 2015): S73. http://dx.doi.org/10.1016/j.eurpsy.2015.09.340.
Дисертації з теми "Réseaux virtuels et slicing":
Elkael, Maxime. "Reinforcement learning and optimization for energy efficient 5G slicing with Quality of Service guarantees." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAS015.
This thesis addresses resource allocation problems in 5G networks. Our objective is to leverage network slicing (e.g. the set of techniques based on virtualization and network softwarization which allows the network operator to provide different amounts of resources to different tenants) in order to to improve the energy-efficiency and resource consumption of 5G networks, while guaranteeing Quality of Service constraints. To do so, we formulate and solve optimization problems at the different domains of the network: We are first concerned with the placement of slices in the core network. To solve the problem, a new approach combining Monte Carlo Search and Neighborhood Search is formulated. We show it accepts more core slices than state-of-the-art approaches for the core network placement problem. Then we shift the focus to energy efficiency in resource allocation in 5G networks shared between Physical Network Operators (PNOs) and Mobile Virtual Network Operators (MVNOs). This framework jointly considers software component placement, user request routing, and resource dimensioning while meeting Service Level Agreements (SLAs) based on latency and reliability constraints. Through Column Generation, we obtain exact solutions, demonstrating energy savings of up to 50% in real networks compared to existing placement or resource minimization algorithms. Finally, we delve into the realm of energy optimization in Integrated Access and Backhaul (IAB) networks, a key component of dense 5G deployments. Leveraging the Open Radio Access Network (O-RAN) framework, our model minimizes active IAB nodes while ensuring a minimum capacity for User Equipment (UE). Formulated as a binary nonlinear program, this approach reduces RAN energy consumption by 47%, while maintaining Quality-Of-Service for UEs. Overall, this thesis provides novel algorithms for improving resource and energy efficiency of 5G network slicing. Such improvement is studied in different parts of the network, from the core up to the access network
Arora, Sagar. "Cloud Native Network Slice Orchestration in 5G and Beyond." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS278.
Network Function Virtualization (NFV) is the founding pillar of 5G Service Based Architecture. It has the potential to revolutionize the future mobile communication generations. NFV started long back in 2012 with Virtual-Machine (VM) based Virtual Network Functions (VNFs). The use of VMs raised multiple questions because of the compatibility issues between VM hypervisors and their high resource consumption. This made containers to be an alternative network function packaging technology. The lightweight design of containers improves their instantiation time and resource footprints. Apart from network functions, containerization can be a promising enabler for Multi-access Edge Computing (MEC) applications that provides a home to low-latency demanding services. Edge computing is one of the key technology of the last decade, enabling several emerging services beyond 5G (e.g., autonomous driving, robotic networks, Augmented Reality (AR)) requiring high availability and low latency communications. The resource scarcity at the edge of the network requires technologies that efficiently utilize computational, storage, and networking resources. Containers' low-resource footprints make them suitable for designing MEC applications. Containerization is meant to be used in the framework of cloud-native application design fundamentals, loosely coupled microservices-based architecture, on-demand scalability, and high resilience. The flexibility and agility of containers can certainly benefit 5G Network Slicing that highly relies on NFV and MEC. The concept of Network slicing allows the creation of isolated logical networks on top of the same physical network. A network slice can have dedicated network functions or its network functions can be shared among multiple slices. Indeed, network slice orchestration requires interaction with multiple technological domain orchestrators, access, transport, core network, and edge computing. The paradigm shift of using cloud-native application design principles has created challenges for legacy orchestration systems and the ETSI NFV and MEC standards. They were designed for handling virtual machine-based network functions, restricting them in their approach to managing a cloud-native network function. The thesis examines the existing standards of ETSI NFV, ETSI MEC, and network service/slice orchestrators. Aiming to overcome the challenges around multi-domain cloud-native network slice orchestration. To reach the goal, the thesis first proposes MEC Radio Network Information Service (RNIS) that can provide radio information at the subscriber level in an NFV environment. Second, it provides a Dynamic Resource Allocation and Placement (DRAP) algorithm to place cloud-native network services considering their cost and availability matrix. Third, by combining NFV, MEC, and Network Slicing, the thesis proposes a novel Lightweight edge Slice Orchestration framework to overcome the challenges around edge slice orchestration. Fourth, the proposed framework offers an edge slice deployment template that allows multiple possibilities for designing MEC applications. These possibilities were further studied to understand the impact of the microservice design architecture on application availability and latency. Finally, all this work is combined to propose a novel Cloud-native Lightweight Slice Orchestration (CLiSO) framework extending the previously proposed Lightweight edge Slice Orchestration (LeSO) framework. In addition, the framework offers a technology-agnostic and deployment-oriented network slice template. The framework has been thoroughly evaluated via orchestrating OpenAirInterface container network functions on public and private cloud platforms. The experimental results show that the framework has lower resource footprints than existing orchestrators and takes less time to orchestrate network slices
Li, Shuopeng. "Contribution à une instanciation efficace et robuste des réseaux virtuels sous diverses contraintes." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCD066/document.
Network virtualization allows to create logical or virtual networks on top of a shared physical or substrate network. The resource allocation problem is an important issue in network virtualization. It corresponds to a well known problem called virtual network embedding (VNE). VNE consists in mapping each virtual node to one substrate node and each virtual link to one or several substrate paths in a way that the objective is optimized and the constraints verified. The objective often corresponds to the optimization of the node computational resources and link bandwidth whereas the constraints generally include geographic location of nodes, CPU, bandwidth, etc. In the multi-domain context where the knowledge of routing information is incomplete, the optimization of node and link resources are difficult and often impossible to achieve. Moreover, to ensure service continuity even upon failure, VNE should cope with failures by selecting the best and resilient mappings. Inthisthesis,westudytheVNEresourceallocationproblemunderdifferentrequirements. To embed a virtual network on multi-domain substrate network, we propose a joint peering and intra domain link mapping method. With reduced and limited information disclosed by the domains, our downsizing algorithm maps the intra domain and peering links in the same stage so that the resource utilization is optimized. To enhance the reliability of virtual networks, we propose a failure avoidance approach that minimizes the failure probability of virtual networks. Exact and heuristic solutions are proposed and detailed for the infinite and limited bandwidth link models. Moreover, we combine the failure avoidance with the failure protection in our novel protection-level-aware survivable VNE in order to improve the reliability. With this last approach, the protectable then the less vulnerable links are first selected for link mapping. To determine the protectable links, we propose a maxflow based heuristic that checks for the existence of backup paths during the primary mapping stage. In case of insufficient backup resources, the failure probability is reduced
Stiti, Oussama. "Étude de l'Urbanisation des Accès Virtuels et Stratégie de Métamorphose de Réseaux." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066632/document.
Virtualization was originally introduced in networks to reduce maintenance and deployment costs. It has experienced tremendous growth and reshaped the landscape of IT and ITC networks. Virtualization permits the sharing of physical resources for instantiating isolated virtual machines despite the fact that it is drawing its resources from the same physical hardware. More recently NFV (Network Functions Virtualization) appeared, it allows to virtualize entire classes of network functions node in blocks that can connect to create communication services. In this thesis we virtualize the access network nodes, namely Wi-Fi access points. The Wi-Fi became one of the hot-topic technology for mobile operators, it allows them to offload some of the customers’ data traffic via hotspots. The problem that arises in such a mechanism is the existing wireless standards, and mobile devices connection management software have not been developed for this purpose. The Hotspot2.0 standard was created to overcome this limitation, by making the Wi-Fi experience similar to the cellular in terms of roaming, transparency and security. We have in our work, applied the concept of NFV by virtualizing these brand new Wi-Fi access points. One of the problems that we faced is the high security required by such standard, including the provisioning of client credentials in public areas. In our thesis we propose an innovative architecture for the repatriation of these credentials through NFC terminals. These same terminals will be used for access points’ urbanization by allowing users to create their own Wi-Fi virtual access point on the fly. The last aspect of this thesis is related to the management of virtualized entities changing communication patterns of legacy networks. In this context, SDN (Software Defined Network) emerged in data centers to redefine the way we think about networks, and is designed for virtualized environments. In this thesis we brought SDN to the edge of the network in our Wi-Fi virtual access points. More than a new paradigm of networks communications, we will see that NFV/SDN in Wi-Fi networks will in the near future make Wi-Fi networks more flexible, open and scalable
Stiti, Oussama. "Étude de l'Urbanisation des Accès Virtuels et Stratégie de Métamorphose de Réseaux." Electronic Thesis or Diss., Paris 6, 2015. http://www.theses.fr/2015PA066632.
Virtualization was originally introduced in networks to reduce maintenance and deployment costs. It has experienced tremendous growth and reshaped the landscape of IT and ITC networks. Virtualization permits the sharing of physical resources for instantiating isolated virtual machines despite the fact that it is drawing its resources from the same physical hardware. More recently NFV (Network Functions Virtualization) appeared, it allows to virtualize entire classes of network functions node in blocks that can connect to create communication services. In this thesis we virtualize the access network nodes, namely Wi-Fi access points. The Wi-Fi became one of the hot-topic technology for mobile operators, it allows them to offload some of the customers’ data traffic via hotspots. The problem that arises in such a mechanism is the existing wireless standards, and mobile devices connection management software have not been developed for this purpose. The Hotspot2.0 standard was created to overcome this limitation, by making the Wi-Fi experience similar to the cellular in terms of roaming, transparency and security. We have in our work, applied the concept of NFV by virtualizing these brand new Wi-Fi access points. One of the problems that we faced is the high security required by such standard, including the provisioning of client credentials in public areas. In our thesis we propose an innovative architecture for the repatriation of these credentials through NFC terminals. These same terminals will be used for access points’ urbanization by allowing users to create their own Wi-Fi virtual access point on the fly. The last aspect of this thesis is related to the management of virtualized entities changing communication patterns of legacy networks. In this context, SDN (Software Defined Network) emerged in data centers to redefine the way we think about networks, and is designed for virtualized environments. In this thesis we brought SDN to the edge of the network in our Wi-Fi virtual access points. More than a new paradigm of networks communications, we will see that NFV/SDN in Wi-Fi networks will in the near future make Wi-Fi networks more flexible, open and scalable
Ebilitigué, Ines. "Réseaux virtuels et commerces ethniques : une dynamique entre l’espace des flux et l’espace urbain." Thesis, Paris 10, 2014. http://www.theses.fr/2014PA100152/document.
This research deals with the future of the urban space in a context marked by the Technologies of Information and Communication (ICT). This subject is approached by the prism of the ethnic businesses situated in three localities, Parisian and regional. The outlook is focused on these places to understand why ICT are included in those spaces open to the public.Three hypotheses are suggested. First, The ICT are included in the businesses thanks to the commercial message diffused through the setting up of goods. Then, the networking of businesses can be explained by the need which the migrants have to maintain the links with their cultural origins and their family, lastly through the membership of the storekeepers in the community of the migrants.The methodology favors the methods of qualitative investigation coming from the anthropology and the micro-sociology. The empirical data allows a validation of the hypotheses. The analysis of those data underline first that, in the network society, urban places don’t disappear. Among them, the ethnic shops are areas of socialization of the virtual networks by placing them at the same level as the offers of the goods and the trade services. Then, the space produced by those businesses offers to the main clientele the possibility of preserving its anchoring in the urban places while being mobile and virtually mobile. By this last idea, this research shows that the ethnic business and ICT are articulated tools which the migrants and their family situated abroad know how to seize to allow an evolution of their daily situations and projects. This analysis gives possibility to considered migrants out terms of the digital divide, and as integrated into the networks society. This new figure of migrant has overtaken the situation of double presence in their origin country and to their family living there, to actually know situations of multiple presences in this country and to their relatives
Bourguiba, Manel. "Plateforme flexible et performante pour les routeurs virtuels sur une architecture multi-coeur." Paris 6, 2011. http://www.theses.fr/2011PA066237.
Cloutier, Kayla. "L'entre-deux des jeunes migrants franco-ontariens : appartenances territoriales et réseaux sociaux virtuels." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/26218.
Gréhant, Xavier. "Allocation efficace et non contraignante des ressources de grilles de calcul à l'aide d'environnements virtuels." Paris, Télécom ParisTech, 2010. https://pastel.archives-ouvertes.fr/pastel-00569373.
Computing grids aggregate computing centers that autonomously manage their own resources. Grid users are scientists that group into user collaborations according to their project or application. Every collaboration has its own resource requirements. An application that executes on a grid is divided in tasks. Resource allocation consists in mapping tasks to servers for their execution. Can grids efficiently orchestrate an allocation that involves multiple user collaborations and resource administrative domains with diverging interests? ln order to answer this question, we present a formai model that allows us to reason on resource allocations, an architectural design pattern that separates the responsibilities of the different parties, a software solution for its deployment, and two novel cache misses prediction techniques in order to help optimize allocation performance
Guittard, Claude. "Forums virtuels : source de création et de diffusion des connaissances et nouvelle organisation productive ?" Université Louis Pasteur (Strasbourg) (1971-2008), 2006. https://publication-theses.unistra.fr/public/theses_doctorat/2006/GUITTARD_Claude_2006.pdf.
Книги з теми "Réseaux virtuels et slicing":
Wilson-Barnao, Caroline. Digital Access and Museums As Platforms. Routledge, 2021.
Wilson-Barnao, Caroline. Digital Access and Museums As Platforms. Taylor & Francis Group, 2021.
Wilson-Barnao, Caroline. Digital Access and Museums As Platforms. Taylor & Francis Group, 2021.
Wilson-Barnao, Caroline. Digital Access and Museums As Platforms. Taylor & Francis Group, 2021.
Частини книг з теми "Réseaux virtuels et slicing":
"Les réseaux locaux virtuels (VLAN)." In Protocoles et réseaux locaux, 261–74. Presses de l'Université du Québec, 2012. http://dx.doi.org/10.2307/j.ctv18pgpr6.12.
"Les réseaux locaux virtuels (VLAN)." In Protocoles et réseaux locaux, 261–73. Presses de l'Université du Québec, 2012. http://dx.doi.org/10.1515/9782760534803-010.
AMRAOUI, Asma, and Badr BENMAMMAR. "Optimisation des réseaux à l’aide des techniques de l’intelligence artificielle." In Gestion et contrôle intelligents des réseaux, 71–94. ISTE Group, 2020. http://dx.doi.org/10.51926/iste.9008.ch3.
HADDADOU, Kamel, and Guy PUJOLLE. "Cloud et Edge Networking des opérateurs." In Cloud et Edge Networking, 135–48. ISTE Group, 2024. http://dx.doi.org/10.51926/iste.9128.ch8.