Letteratura scientifica selezionata sul tema "Délais de bout en bout"
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Articoli di riviste sul tema "Délais de bout en bout":
Scharbarg, Jean-Luc, Jérôme Ermont, Henri Bauer e christian Fraboul. "Analyse des délais de bout en bout pire cas dans des réseaux avioniques". Journal Européen des Systèmes Automatisés 43, n. 7-9 (10 novembre 2009): 953–67. http://dx.doi.org/10.3166/jesa.43.953-967.
Ferrandiz, Thomas, Fabrice Francès e Christian Fraboul. "Une méthode de calcul de délais pire cas de bout en bout pour les réseaux SpaceWire". Journal Européen des Systèmes Automatisés 43, n. 7-9 (10 novembre 2009): 937–51. http://dx.doi.org/10.3166/jesa.43.937-951.
Bergeron, Viateur. "Le droit d’être entendu et l’évocation". Revue générale de droit 26, n. 3 (30 marzo 2016): 369–423. http://dx.doi.org/10.7202/1035885ar.
Dejehansart, Françoise. "Au bout du bout". Psychologues et Psychologies N°235, n. 4 (4 aprile 2014): 025–26. http://dx.doi.org/10.3917/pep.235.0003g.
André, Michel. "« Intellectuel de bout en bout »". Books 102, n. 11 (4 novembre 2019): 58–62. http://dx.doi.org/10.3917/books.102.0058.
Séverin, Peggy, e Guillaume Gabriel. "Des petits riens mis bout à bout". Empan 121, n. 1 (23 marzo 2021): 102–13. http://dx.doi.org/10.3917/empa.121.0102.
Bouit, Delphine, e Florence L�vi. "Bout-choat". Sigila N�34, n. 2 (2014): 167. http://dx.doi.org/10.3917/sigila.034.0167.
Rohrman, Douglass F. "Bluefin bout". Frontiers in Ecology and the Environment 8, n. 3 (aprile 2010): 163. http://dx.doi.org/10.1890/1540-9295-8.3.163.
Hayes, Alysa. "Turn-Bout". Callaloo 27, n. 2 (2004): 402. http://dx.doi.org/10.1353/cal.2004.0066.
Bergeron, Michael F., Melissa D. Laird, Elaina L. Marinik, Joel S. Brenner e Jennifer L. Waller. "Repeated-bout exercise in the heat in young athletes: physiological strain and perceptual responses". Journal of Applied Physiology 106, n. 2 (febbraio 2009): 476–85. http://dx.doi.org/10.1152/japplphysiol.00122.2008.
Tesi sul tema "Délais de bout en bout":
Nguyen, Huu-Nghi. "Estimation de l’écart type du délai de bout-en-bout par méthodes passives". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1044/document.
Since the early beginning of Internet, the amount of data exchanged over the networks has exponentially grown. The devices deployed on the networks are very heterogeneous, because of the growing presence of middleboxes (e.g., firewalls, NAT routers, VPN servers, proxy). The algorithms run on the networking devices (e.g., routing, spanning tree) are often complex, closed, and proprietary while the interfaces to access these devices typically vary from one manufacturer to the other. All these factors tend to hinder the understanding and the management of networks. Therefore a new paradigm has been introduced to ease the design and the management of networks, namely, the SDN (Software-defined Networking). In particular, SDN defines a new entity, the controller that is in charge of controlling the devices belonging to the data plane. Thus, in a SDN-network, the data plane, which is handled by networking devices called virtual switches, and the control plane, which takes the decisions and executed by the controller, are separated. In order to let the controller take its decisions, it must have a global view on the network. This includes the topology of the network and its links capacity, along with other possible performance metrics such delays, loss rates, and available bandwidths. This knowledge can enable a multi-class routing, or help guarantee levels of Quality of Service. The contributions of this thesis are new algorithms that allow a centralized entity, such as the controller in an SDN network, to accurately estimate the end-to-end delay for a given flow in its network. The proposed methods are passive in the sense that they do not require any additional traffic to be run. More precisely, we study the expectation and the standard deviation of the delay. We show how the first moment can be easily computed. On the other hand, estimating the standard deviation is much more complex because of the correlations existing between the different waiting times. We show that the proposed methods are able to capture these correlations between delays and thus providing accurate estimations of the standard deviation of the end-to-end delay. Simulations that cover a large range of possible scenariosvalidate these results
Jonglez, Baptiste. "Mécanismes de bout en bout pour améliorer la latence dans les réseaux de communication". Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALM048.
The network technologies that underpin the Internet have evolved significantly over the last decades, but one aspect of network performance has remained relatively unchanged: latency. In 25 years, the typical capacity or "bandwidth" of transmission technologies has increased by 5 orders of magnitude, while latency has barely improved by an order of magnitude. Indeed, there are hard limits on latency, such as the propagation delay which remains ultimately bounded by the speed of light.This diverging evolution between capacity and latency is having a profound impact on protocol design and performance, especially in the area of transport protocols. It indirectly caused the Bufferbloat problem, whereby router buffers are persistently full, increasing latency even more. In addition, the requirements of end-users have changed, and they expect applications to be much more reactive. As a result, new techniques are needed to reduce the latency experienced by end-hosts.This thesis aims at reducing the experienced latency by using end-to-end mechanisms, as opposed to "infrastructure" mechanisms. Two end-to-end mechanisms are proposed. The first is to multiplex several messages or data flows into a single persistent connection. This allows better measurements of network conditions (latency, packet loss); this, in turn, enables better adaptation such as faster retransmission. I applied this technique to DNS messages, where I show that it significantly improves end-to-end latency in case of packet loss. However, depending on the transport protocol used, messages can suffer from Head-of-Line blocking: this problem can be solved by using QUIC or SCTP instead of TCP.The second proposed mechanism is to exploit multiple network paths (such as Wi-Fi, wired Ethernet, 4G). The idea is to use low-latency paths for latency-sensitive network traffic, while bulk traffic can still exploit the aggregated capacity of all paths. This idea was partially realized by Multipath TCP, but it lacks support for multiplexing. Adding multiplexing allows data flows to cooperate and ensures that the scheduler has better visibility on the needs of individual data flows. This effectively amounts to a scheduling problem that was identified only very recently in the literature as "stream-aware multipath scheduling". My first contribution is to model this scheduling problem. As a second contribution, I proposed a new stream-aware multipath scheduler, SRPT-ECF, that improves the performance of small flows without impacting larger flows. This scheduler could be implemented as part of a MPQUIC (Multipath QUIC) implementation. More generally, these results open new opportunities for cooperation between flows, with applications such as improving WAN aggregation
Bauer, Henri. "Analyse pire cas de flux hétérogènes dans un réseau embarqué avion". Thesis, Toulouse, INPT, 2011. http://www.theses.fr/2011INPT0008/document.
The certification process for avionics network requires guaranties on data transmission delays. However, calculating the worst case delay can be complex in the case of industrial AFDX (Avionics Full Duplex Switched Ethernet) networks. Tools such as Network Calculus provide a pessimistic upper bound of this worst case delay. Communication needs of modern commercial aircraft are expanding and a growing number of flows with various constraints and characteristics must share already existing resources. Currently deployed AFDX networks do not differentiate multiple classes of traffic: messages are processed in their arrival order in the output ports of the switches (FIFO servicing policy). The purpose of this thesis is to show that it is possible to provide upper bounds of end to end transmission delays in networks that implement more advanced servicing policies, based on static priorities (Priority Queuing) or on fairness (Fair Queuing). We show how the trajectory approach, based on scheduling theory in asynchronous distributed systems can be applied to current and future AFDX networks (supporting advanced servicing policies with flow differentiation capabilities). We compare the performance of this approach with the reference tools whenever it is possible and we study the pessimism of the computed upper bounds
Garnier, Ilias. "Formalisme pour la conception haut-niveau et détaillée de systèmes de contrôle-commande critiques". Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00676901.
Kemayo, Georges Arnaud. "Evaluation et validation des systèmes distribués avioniques". Thesis, Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2014. http://www.theses.fr/2014ESMA0010/document.
Avionics systems are subject to hard real-time constrainst and criticality. To certify these systems, it is neccessaryto compute the upper bound of the end-to-end delay of each message transmitted in the network. In this thesis,we mainly focus on civils avionics systems that use AFDX (Avionics Full Duplex Switched Ethernet) networkand that has been introduced in the Airbus A380 architecture.In this context, we focus in the computation of the end-to-end delays of messages crossing the network. Amongthe existing methods, we interested in the trajectory approach precedently proposed by researchers. The goal ofthis method is to compute end-to-end delay upper bounds of messages in the nodes of AFDX network. As a firstcontribution, we prove that the end-to-end delays computed by this method can be optimistic. This means thatwithout any modification, it cannot be used to validate transmission end-to-end delays for the AFDX. Despitethe identification of these optimistic problems in the trajectory approach, a solution to remove them seems notto be simple from our point of view. Hence, as a second contribution, we propose a new approach to computethese delays based on the characterization of the worst-case traffic encountered by a packet on each crossednode
Ghandi, Sanaa. "Analysis of network delay measurements : Data mining methods for completion and segmentation". Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2023. http://www.theses.fr/2023IMTA0382.
The exponential growth of the Internet requires regular monitoring of network metrics. This thesis focuses on round-trip delays and the possibility of addressing the problems of missing data and multivariate segmentation. The first contribution includes the orchestration of delay measurement campaigns, as well as the development of a simulator that generates end-to-end delay traces. The second contribution of this thesis is the introduction of two missing data completion methods. The first is based on non-negative matrix factorization, while the second uses collaborative neural filtering. Tested on synthetic and real data, these methods demonstrate their efficiency and accuracy. The third contribution of this thesis involves multivariate delay segmentation. This approach is based on hierarchical clustering and is implemented in two stages. Firstly, the delay time series are grouped to obtain, within the same group, series with similar and synchronous variations and trends. Next, the multivariate segmentation step collectively and jointly segments the series within each group. This step uses hierarchical clustering followed by post-processing using the Viterbi algorithm to smooth the segmentation result. This method was tested on real delay traces from two major events affecting two Internet Exchange Points (IXPs). The results show that this method approximates the state-of-the-art in segmentation, while significantly reducing computing speed and costs
Despaux, François. "Modeling and evaluation of the end-to-end delay in wireless sensor networks". Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0100/document.
In this thesis, we propose an approach that combines both measurements and analytical approaches for infering a Markov chain model from the MAC protocol execution traces in order to be able to estimate the end to end delay in multi-hop transmission scenarios. This approach allows capturing the main features of WSN. Hence, a suitable Markov chain for modelling the WSN is infered. By means of an approach based on frequency domain analysis, end to end delay distribution for multi-hop scenarios is found. This is an important contribution of our approach with regard to existing analytical approaches where the extension of these models for considering multi-hop scenarios is not possible due to the fact that the arrival distribution to intermediate nodes is not known. Since local delay distribution for each node is obtained by analysing the MAC protocol execution traces for a given traffic scenario, the obtained model (and therefore, the whole end to end delay distribution) is traffic-dependant. In order to overcome this problem, we have proposed an approach based on non-linear regression techniques for generalising our approach in terms of the traffic rate. Results were validated for different MAC protocols (X-MAC, ContikiMAC, IEEE 802.15.4) as well as a well-known routing protocol (RPL) over real test-beds (IOT-LAB)
Despaux, François. "Modeling and evaluation of the end-to-end delay in wireless sensor networks". Electronic Thesis or Diss., Université de Lorraine, 2015. http://www.theses.fr/2015LORR0100.
In this thesis, we propose an approach that combines both measurements and analytical approaches for infering a Markov chain model from the MAC protocol execution traces in order to be able to estimate the end to end delay in multi-hop transmission scenarios. This approach allows capturing the main features of WSN. Hence, a suitable Markov chain for modelling the WSN is infered. By means of an approach based on frequency domain analysis, end to end delay distribution for multi-hop scenarios is found. This is an important contribution of our approach with regard to existing analytical approaches where the extension of these models for considering multi-hop scenarios is not possible due to the fact that the arrival distribution to intermediate nodes is not known. Since local delay distribution for each node is obtained by analysing the MAC protocol execution traces for a given traffic scenario, the obtained model (and therefore, the whole end to end delay distribution) is traffic-dependant. In order to overcome this problem, we have proposed an approach based on non-linear regression techniques for generalising our approach in terms of the traffic rate. Results were validated for different MAC protocols (X-MAC, ContikiMAC, IEEE 802.15.4) as well as a well-known routing protocol (RPL) over real test-beds (IOT-LAB)
Hotescu, Oana Andreea. "Vers la convergence de réseaux dans l'avionique". Thesis, Toulouse, INPT, 2020. http://www.theses.fr/2020INPT0044.
AFDX is the standard switched Ethernet solution for transmitting avionic flows. Today’s AFDX deployments in commercial aircrafts are lightly loaded to ensure the determinism of control and command operations. This thesis aims at investigating a practical alternative envisioned by manufacturers that takes advantage of the remaining AFDX bandwidth to transfer additional nonavionic flows (video, audio, service). These flows must not compromise the in-time arrival of avionic ones. Thus, appropriate scheduling policies formultiplexing avionic flows with non-avionic flows are required at the emitting end systems and switch egress ports. We mainly focus on the transmission of additional flows carrying video streams from cameras located on the airplane to cockpit display. Multiplexing avionic flows with video flows is tackled by introducing table scheduling at the emitting end systems and a 2-priority levels SPQ service policy at switch egress ports. This solution preserves the real-time constraints of avionic flows but may introduce variations of the end-to-end delay of video ones. An appropriate allocation of slots to avionic flows in table scheduling can reduce the emission lag of video flows and thus, limit their delay variations. We propose two strategies to allocate avionic flows in the table scheduling: a simple one based on heuristics and an optimal one. Optimal schedules are derived by solving a constraint programming model minimizing the emission lag of video flows. For light traffic end systems, heuristic allocation is close to optimal
Floquet, Julien. "Mécanismes auto-organisants pour connexions de bout en bout". Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC102/document.
Fifth generation networks are being defined and their different components are beginning to emerge: new technologies for access to radio, fixed and mobile convergence of networks and virtualization.End-to-end (E2E) control and management of the network have a particular importance for network performance. Having this in mind, we segment the work of the thesis in two parts: the radio access network (RAN) with a focus on Massive MIMO (M-MIMO) technology and the E2E connection from a point of view of the transport layer.In the first part, we consider hierarchical beamforming in wireless networks. For a given population of flows, we propose computationally efficient algorithms for fair rate allocation. We next propose closed-form formulas for flow level performance, for both elastic (with either proportional fairness and max-min fairness) and streaming traffic. We further assess the performance of hierarchical beamforming using numerical experiments.In the second part, we identify an application of SON namely the control of the starvation probability of video streaming service. The buffer receives data from a server with an E2E connection following the TCP protocol. We propose a model that describes the behavior of a buffer content and we compare the analytical formulas obtained with simulations. Finally, we propose a SON function that by adjusting the application video rate, achieves a target starvation probability
Libri sul tema "Délais de bout en bout":
Eltsine, Boris Nikolaevitch. Jusqu'au bout! Paris: Presses pocket, 1991.
Gilbert, Guy. Jusqu'au bout! [Paris]: Stock, 1993.
Southgate, Joan E. 'Bout time. Solon, Ohio: Eagle Creek Press, 2007.
Lalonde, Gisèle. Jusqu'au bout ! Ottawa: Le Nordir, 2003.
Lalonde, Gisèle. Jusqu'au bout! Ottawa: Le Nordir, 2003.
Casmoussa, Georges. Jusqu'au bout. Bruyères-le-Châtel: Nouvelle Cité, 2012.
Kraehn, Jean-Charles. Bout d'homme. Paris: Glénat, 1993.
Guy, Gilbert. Jusqu'au bout! [Paris]: Stock, 1993.
Legoux, Marie-Noëlle. Du bout de la langue-- au bout des doigts. 4a ed. Toronto: Holt, Rinehart and Windston of Canada, 1999.
Fontenay, Hervé de. Du bout de la langue-- au bout des doigts. 2a ed. Toronto: Holt, Rinehart and Winston of Canada, 1986.
Capitoli di libri sul tema "Délais de bout en bout":
Miles, Harold. "Larnin’ ’Bout Women". In The Devil & Uncle Will, 82–93. Totowa, NJ: Humana Press, 1991. http://dx.doi.org/10.1007/978-1-4684-6885-4_9.
Guerrero, Lisa A. "“Talkin’ ’Bout Negrotown”". In Crazy Funny, 133–58. Milton Park, Abingdon, Oxon ; New York, NY : Routledge, 2020. |: Routledge, 2019. http://dx.doi.org/10.4324/9780429467639-6.
Tauler Riera, Pedro, Maurizio Volterrani, Ferdinando Iellamo, Francesco Fallo, Andrea Ermolao, William J. Kraemer, Nicholas A. Ratamess, Avery Faigenbaum, Andrew Philp e Keith Baar. "Repeated Bout Effect". In Encyclopedia of Exercise Medicine in Health and Disease, 761. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-29807-6_2963.
Usher, Phillip John. "À bout de souffle". In A Companion to Jean-Luc Godard, 21–43. Oxford, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118586815.ch2.
Clarke, Matthew. "Talkin' ‘bout a revolution". In Education and the Fantasies of Neoliberalism, 40–61. London: Routledge, 2021. http://dx.doi.org/10.4324/9781003028444-2.
Kovács, Éva. "Talkin’ ’bout a revolution". In From Revolution to Uncertainty, 103–16. Abingdon, Oxon ; New York, NY : Routledge, 2019. | Series: Routledge histories of Central and Eastern Europe ; 4: Routledge, 2019. http://dx.doi.org/10.4324/9781351140324-7.
Marton, Péter, Buyisile Ntaka e András Rácz. "Viktor Bout & Co." In The Palgrave Handbook of Non-State Actors in East-West Relations, 1–13. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-05750-2_83-1.
Robinson, Heather. "“Talk ‘bout Battle fuh Language!”". In Language, Diaspora, Home, 91–107. New York: Routledge, 2023. http://dx.doi.org/10.4324/9781003317135-7.
Noble, Ian. "Voyage au bout de la nuit". In Language and Narration in Céline’s Writings, 22–54. London: Palgrave Macmillan UK, 1987. http://dx.doi.org/10.1007/978-1-349-06386-4_2.
Finneman, Teri. "Talkin' 'Bout My Generation: Understanding Generational Differences". In Cross-Cultural Journalism and Strategic Communication, 323–44. Second edition. | London ; New York : Routledge, 2019. | First edition published by Routledge 2016 under title: Cross-cultural journalism : communicating strategically about diversity.: Routledge, 2019. http://dx.doi.org/10.4324/9780429488412-13.
Atti di convegni sul tema "Délais de bout en bout":
Pelloin, Valentin, Nathalie Camelin, Antoine Laurent, Renato De Mori e Sylvain Meignier. "Architectures neuronales bout-en-bout pour la compréhension de la parole". In XXXIVe Journées d'Études sur la Parole -- JEP 2022. ISCA: ISCA, 2022. http://dx.doi.org/10.21437/jep.2022-87.
Lee, Katherine, A. Feder Cooper e James Grimmelmann. "Talkin' 'Bout AI Generation". In CSLAW '24: Symposium on Computer Science and Law. New York, NY, USA: ACM, 2024. http://dx.doi.org/10.1145/3614407.3643696.
Petrie, Helen. "Talking ‘bout my Generation … or not?" In CHI '23: CHI Conference on Human Factors in Computing Systems. New York, NY, USA: ACM, 2023. http://dx.doi.org/10.1145/3544549.3582742.
Karlos, George, Henri Bal e Lin Wang. "Don't You Worry 'Bout a Packet". In HotNets '21: The 20th ACM Workshop on Hot Topics in Networks. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3484266.3487395.
Aguero, Cécilia, e Philippe Chopin. "Le Contrôle Aérien Militaire au Bout des Doigts". In the 2012 Conference. New York, New York, USA: ACM Press, 2012. http://dx.doi.org/10.1145/2652574.2653440.
Häusler, Felix, Jan Stührenberg, Kay Smarsly e Patrick P. Neumann. "Bout-based Gas Source Localization using Aerial Robot Swarms". In 2023 IEEE SENSORS. IEEE, 2023. http://dx.doi.org/10.1109/sensors56945.2023.10325109.
"MACHINE LEARNING OF HUMAN SLEEP PATTERNS BASED ON STAGE BOUT DURATIONS". In International Conference on Health Informatics. SciTePress - Science and and Technology Publications, 2012. http://dx.doi.org/10.5220/0003782500710080.
Chapurin, O., A. Smolyakov e M. Umansky. "Landau-fluid closures and their implementation in bout ++ with non-fourier methods". In 2016 IEEE International Conference on Plasma Science (ICOPS). IEEE, 2016. http://dx.doi.org/10.1109/plasma.2016.7534234.
O'Callaghan, Ben P. F., Emer P. Doheny, Cathy Goulding, Emma Fortune e Madeleine M. Lowery. "Adaptive gait segmentation algorithm for walking bout detection using tri-axial accelerometers". In 2020 42nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) in conjunction with the 43rd Annual Conference of the Canadian Medical and Biological Engineering Society. IEEE, 2020. http://dx.doi.org/10.1109/embc44109.2020.9176460.
Maré, Thierry. "Usages du bout du monde. Le Japon, Roland Barthes et Nicolas Bouvier". In Usages de Nicolas Bouvier. Fabula, 2017. http://dx.doi.org/10.58282/colloques.4394.
Rapporti di organizzazioni sul tema "Délais de bout en bout":
Rognlien, T. D., e X. Q. Xu. Portable implementation of implicit methods for the UEDGE and BOUT codes on parallel computers. Office of Scientific and Technical Information (OSTI), febbraio 1999. http://dx.doi.org/10.2172/8018.
DuBose, D. A., M. Cayanong, D. H. Morehouse, J. L. Jenner e M. Kellog. Influence of a Single-bout of Muscle Damaging Eccentric Exercise on Human Plasma Fibronectin Level. Fort Belvoir, VA: Defense Technical Information Center, ottobre 2002. http://dx.doi.org/10.21236/ada411794.
Ammar H Hakim. Final Report for "Extending BOUT++ for Solution of Edge Plasma Equations for Use in Whole Device Simulation of Tokamaks". Office of Scientific and Technical Information (OSTI), ottobre 2011. http://dx.doi.org/10.2172/1027635.
Guenther, Stephanie-Kaye. "An I don't give a damn 'bout my bad reputation": The Effects of Family Type and Patriarchy in the Home on Female Adolescent Delinquency and Mental Health. Portland State University Library, gennaio 2000. http://dx.doi.org/10.15760/etd.296.