Rozprawy doktorskie na temat „Service bout-en-bout”
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Urvoy-Keller, Guillaume. "Qualite de service de bout en bout et algorithmes d'admission d'appel". Paris 6, 1999. http://www.theses.fr/1999PA066509.
Pełny tekst źródłaBennani, Fayçal. "IP et la QoS : vers une maîtrise dynamique de bout en bout". Paris, ENST, 2002. http://www.theses.fr/2002ENSTA002.
Pełny tekst źródłaNguyen, 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.
Pełny tekst źródłaSince 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
Hamze, Mohamad. "Autonomie, sécurité et QoS de bout en bout dans un environnement de Cloud Computing". Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOS033/document.
Pełny tekst źródłaToday, Cloud Networking is one of the recent research areas within the Cloud Computing research communities. The main challenges of Cloud Networking concern Quality of Service (QoS) and security guarantee as well as its management in conformance with a corresponding Service Level Agreement (SLA). In this thesis, we propose a framework for resource allocation according to an end-to-end SLA established between a Cloud Service User (CSU) and several Cloud Service Providers (CSPs) within a Cloud Networking environment (Inter-Cloud Broker and Federation architectures). We focus on NaaS and IaaS Cloud services. Then, we propose the self-establishing of several kinds of SLAs and the self-management of the corresponding Cloud resources in conformance with these SLAs using specific autonomic cloud managers. In addition, we extend the proposed architectures and the corresponding SLAs in order to deliver a service level taking into account security guarantee. Moreover, we allow autonomic cloud managers to expand the self-management objectives to security functions (self-protection) while studying the impact of the proposed security on QoS guarantee. Finally, our proposed architecture is validated by different simulation scenarios. We consider, within these simulations, videoconferencing and intensive computing applications in order to provide them with QoS and security guarantee in a Cloud self-management environment. The obtained results show that our contributions enable good performances for these applications. In particular, we observe that the Broker architecture is the most economical while ensuring QoS and security requirements. In addition, we observe that Cloud self-management enables violations and penalties’ reduction as well as limiting security impact on QoS guarantee
Roset, Hervé. "Contribution à l'étude de la qualité de service de bout en bout des réseaux". Paris 6, 2004. http://www.theses.fr/2004PA066594.
Pełny tekst źródłaAlaoui, Soulimani Houda. "Pilotage dynamique de la qualité de service de bout en bout pour une session "user-centric"". Phd thesis, Télécom ParisTech, 2012. http://pastel.archives-ouvertes.fr/pastel-00834199.
Pełny tekst źródłaAlaoui, Soulimani Houda. "Pilotage dynamique de la qualité de service de bout en bout pour une session "user-centric"". Electronic Thesis or Diss., Paris, ENST, 2012. http://www.theses.fr/2012ENST0021.
Pełny tekst źródłaNowadays, the services market has become increasingly competitive. Customer requirements for service offerings in line with their uses and preferences led providers to offer new services to meet this new need and to stand out from competitors and attract new customers. With the success of the network and service convergence (NGN / NGS), new services have emerged. A mobile user desires to access his services anywhere, anytime and on any type of terminal.Thus, providing customized services to clients while ensuring the service continuity and the end-to-end quality of service in a heterogeneous and mobile environment became a challenge for mobile operators and service providers to improve the return on investment (ROI) and time-to-market (TTM). Our thinking about the provision of customized services according to the functional and non-functional (QoS) needs of the users has led us to identify the needs of the new context NGN / NGS defined by the intersection of these three elements "user-centric, mobility and QoS". How to dynamically control the end-to-end QoS for a single "user-centric" session? How to ensure the "Service Delivery" in the context of mobility and ubiquity? These new needs have led us to propose solutions through three main contributions that take into account the user and the operator vision. Our first contribution concerns the organizational model. We have proposed a new organization with a maximum of flexibility, adaptability and self-management which allows the control of the QoS at each level of the architecture (equipment, network and service). In this organization, we have defined actors and the role of each one in relation to the decision-making process during the user session in order to maintain the end-to-end QoS in an environment that is totally heterogeneous and mobile. Our second contribution addresses the autonomic service component. With the complexity of services personalization in a heterogeneous and mobile context and the need to satisfy the end to end QoS, services and network resources must be taken into account. Therefore, a high degree of self-sufficiency, self-management and automation is required in the resource service to improve the service delivery. We have therefore proposed an autonomic service component based on an integrated QoS-agent which is self-controlled and self-managed to dynamically adapt its resources in response to changing situations during the user’s session. Our third proposal covers the model protocol. The personalized services session requires more flexible interactions at the service level in order to obtain a single session with service continuity. We have proposed a signalling protocol SIP + that allows the negotiation of the QoS of personalized services at the session initialization phase and the renegotiation of the QoS during the utilization to maintain the service with the required QoS through a unique session. More concretely, we have presented our experiments through a scenario and demonstration platform that allows us to test the feasibility and the performance of our contributions. The contributions and perspectives of this thesis are stated in the conclusion
Villin, Olivier. "Gestion de la qualité de service de bout en bout dans les systèmes répartis : approche gestion des ressources". Evry-Val d'Essonne, 2002. http://www.theses.fr/2002EVRY0003.
Pełny tekst źródłaChassot, Christophe. "Contribution aux protocoles et aux architectures de communication de bout en bout pour la QdS dans l'internet". Habilitation à diriger des recherches, Institut National Polytechnique de Toulouse - INPT, 2005. http://tel.archives-ouvertes.fr/tel-00012152.
Pełny tekst źródłaBarros, de Sales André. "Gestion de bout en bout de la qualité des services distribués : surveillance et sélection par une approche Modelware". Toulouse 3, 2004. http://www.theses.fr/2004TOU30075.
Pełny tekst źródłaOur work contributes to offer a selection of published services in distributed systems based on monitored quality management information. From an informational approach, we had the means to model the influence of Systems and Networks so as to automate their management (identification of dependencies, automatic deduction of change of state etc. ). Our informational model driven architecture (Modelware) led us to specify a designing method for management applications, expressing a double independency: one in regard to specific managed domains and another in relation to management platforms. The integrated and contextual monitoring of service was linked to an "advanced selection of service" thus offering a real-time instrumentation of Quality of Service - QoS parameters. Our solution was tested for a CORBA environment, emphasizing our "Modelware" solution's specification steps towards a specific environment to be managed. This QoS information was added to the services published in the CORBA Trader service
Kessal, Ouanouche Soumia. "Gestion Dynamique de Service de Bout en Bout dans un Contexte de Mobilité et d'Ubiquité : du Déploiement au Delivery des services". Phd thesis, Télécom ParisTech, 2011. http://pastel.archives-ouvertes.fr/pastel-00679283.
Pełny tekst źródłaChahed, Tijani. "La qualité de service de bout en bout dans l'Internet : mapping de la QoS entre IP et ATM, services intégrés et services différenciés". Versailles-St Quentin en Yvelines, 2000. http://www.theses.fr/2000VERS003V.
Pełny tekst źródłaChalouf, Mohamed Aymen. "Offre de service dans les réseaux de nouvelle génération : négociation sécurisée d’un niveau de service de bout en bout couvrant la qualité de service et la sécurité". Thesis, Bordeaux 1, 2009. http://www.theses.fr/2009BOR13905/document.
Pełny tekst źródłaBased on the IP technology, the next generation network (NGN) must overcome the main drawbacks of this technology consisting in the lack of quality of service (QoS), security and mobility management. To ensure a service offer in an NGN, a protocol for negotiating service level can be used. However, most of the existing negotiation protocols allow the establishment of a service level which includes only QoS. As for security and mobility, they were often not covered by these negotiations, and therefore managed independently. However, securing a service can cause degradation of the QoS, and the mobility of a user can change the service needs in terms of QoS and security. Thus, we need to simultaneously manage QoS and security while taking into account user’s mobility. In this context, we propose to develop a signaling protocol that allows fixed and mobile users to negotiate a service level covering both QoS and security, in a dynamic, automatic and secure manner. Our contribution is achieved in three steps. Initially, we rely on a signaling protocol, which performs QoS negotiation using web services, to enable the negotiation of both security and QoS while taking into account the impact of security on QoS. Then, this negotiation is automated by basing it on a user profile. This allows adjusting the service level according to changes which can occur on the user context. Thus, the service offer is more dynamic and can be adapted to changes of access network resulting from the mobility of the user. Finally, we propose to secure the negotiation flows in order to prevent the different attacks that can target the exchanged messages during a negotiation process
Mbarek, Nader. "Autonomie dans les réseaux : négociation du niveau de service de bout en bout dans un framework de gestion autonome". Bordeaux 1, 2007. http://www.theses.fr/2007BOR13453.
Pełny tekst źródłaZaaraoui, Hind. "Gestion de ressources bout-en-bout et contrôle de la qualité de service en mobilité dans les réseaux LTE/LTE-Advanced". Thesis, Avignon, 2017. http://www.theses.fr/2017AVIG0220/document.
Pełny tekst źródłaThe technology evolution of Radio Access Network (RAN) in the context of 5th Generation (5G) is not only guided by improving the network performance but also by the need to transform all the technologies into intelligent dynamic ones. The new 5G is a flexible technology that will be able to satisfy at the same time each user of any type of mobility (static or mobile) or service request (real and non-real time service) without modifying any models or algorithms in networks. All physical use cases will be able to be considered by the network intelligently and resource managed automatically. The objective of this thesis is to analyse and enhance radio performance taking into account vehicular mobility by managing dynamically and intelligently the available resources. To this end, we describe different users mobility models for discrete and continuous modeling. The discrete model using the well-known car following model is well adapted for simulations. The continuous one is useful to derive analytical key performance indicators (KPI). The novelty of the thesis is the analytical formulation of KPIs that take into account the physical mobility in the radio traffic which is not necessary stationary. As an example, the impact of a traffic light on performance indicators in a cell is investigated. It is shown that a periodical physical traffic congestion due to the traffic light deteriorate periodically the cell performance. A first given solution is to improve resource allocation and control in the context of LTE-Advanced heterogeneous network. A small cell is deployed near the traffic light to relieve periodic congestion and QoS degradation. Three resource allocation and control schemes are investigated: a full frequency reuse, a static and a dynamic frequency splitting algorithm that are optimized with respect to a throughput based alpha-fair utility. For sake of financial and energy costs decreasing, another solution is provided using new antenna array technologies in order to manage efficiently heterogeneous, fixed and mobile traffic. A heterogeneous antenna system with different large antenna array technologies is considered to ooad static congestion areas and also the dynamical mobile congestion: Virtual Small Cell (VSC), virtual small cell with Self-Organizing Network (VSC-SON) and beamforming with multilevel global codebook that manages the heterogeneous antenna system at the Base Station (BS). The first two technologies improve the cell performance due to the capability to focus the signal at the traffic concentration. The novel beamforming solution with global codebook can further and significantly improve performance due to the capability to focus the signal along the road and to implicitly balance the traffic between the different antennas. We compare all these technologies and their impact on the network performance. The issue of user selection to allocate a portion (in time or in bandwidth) of the available resource is also analyzed. Moreover the context of resource management and network performance for 5G in high mobility is one of the future challenges. Thanks to the Minimization of Drive Testing (MDT) technology, networks can have Signal to Interference plus Noise Ratio (SINR) information with Geo-Localized Measurements (GLM).We introduce the concept of Forecast Scheduler for users in high mobility. It is assumed that a Radio Environment Map (REM) can provide interpolated SINR values along the user trajectories. Mobile users experience in their trajectories different mean SINR values. In mobile networks, schedulers exploit channel quality variation by giving the signal to the user experiencing best channel conditions while remaining fair. Nevertheless, we cannot record data rates of users with high mobility due to a very small time coherence. The Forecast Scheduling will exploit the SINR variation during users' trajectories
Villa, Monteiro Daniel. "Stratégies d'alliances dans la satisfaction bout en bout de la QoS au sein d'un réseau inter-domaines hiérarchique et égoïste". Versailles-St Quentin en Yvelines, 2011. http://www.theses.fr/2011VERS0007.
Pełny tekst źródłaThis thesis focuses on satisfying the QoS end to end in a inter-domain hierarchical network and selfish. Routing protocols only offer a single road between two domains (direct route), whose composition is mainly influenced by economic interests. Our main contribution has consisted in proposing a new model based on the concept of alliance. In this model, an alliance is a set of independent areas of an economic perspective that decide to share part of their information network and a particular routing service (service stop). The goal of this alliance is to improve customer service requests among the members area by using alternative routes to better direct routes respecting QoS constraints. We establish a first-time mechanisms for the construction of these alternative routes and how to obtain the necessary estimates. Subsequently, our work focuses on studying the characteristics defining an effective alliance. We propose, then, different possible compositions of alliance based on local characteristics of areas but also on their topological position. To validate our model and study the effectiveness of alliances, we have conducted numerous simulations on realistic topologies and hierarchical. We find that the effectiveness of an alliance depends of course on its size, its composition but also the nature and difficulty of QoS constraints to satisfy
Nassrallah, Rabih. "Modèle domanial pour la gestion et le contrôle de la qualité de service de bout en bout dans les réseaux IP hétérogènes". Troyes, 2007. http://www.theses.fr/2007TROY0014.
Pełny tekst źródłaThe uses of Internet network extended in last years by integrating new services IP. Contrary to the applications known as elastic, these advanced services induce constraints for their operations. However, traditional network IP (Best Effort) was conceived to transport information without guarantee neither of time nor of availability of bandwidth. Several evolutions of the network however made it possible to take into account the requirements for quality of service of the applications in a single domain managed overall by an operator. In this document, we are interested in the problem of the en-to-end quality of service over multiple domains networks. We focus on the heterogeneous aspect of the quality of service control over theses domains that can lead to an incoherent treatment of the IP packet of the same application through the various networks thus resulting a degradation of the service. This thesis proposes a model for the control of the en-to-end quality of service and the available bandwidth management over various networks. This model must help the operators to offer a homogeneous en-to-end service to flows in a real environment such as the Internet. Our model is based on an evaluation of the en-to-end quality of service prior to the flow admission in the network, associated to a degradation monitoring over all the duration of the service
Hassan, Khaldon. "Architecture De Contrôleur Mémoire Configurable et Continuité de Service Pour l'Accès à la Mémoire Externe Dans Les Systèmes Multiprocesseurs Intégrés à Base de Réseaux Sur Puce". Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00656470.
Pełny tekst źródłaSoudais, Guillaume. "End-to-End Service Guarantee for High-Speed Optical Networks". Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAT027.
Pełny tekst źródłaDriven by an ever-growing bandwidth and performance need, the IT network has grown such that OT and telecommunications networks are looking to exploit this infrastructure for their expansion. These three sectors have historically been separated due to different requirements, on latency, its variation and on reliability. To answer to time critical application needs, the Time Sensitive Network taskforce has developed new sets of protocols that are starting to be implemented in commercial products. Other groups have proposed novel architecture with time control to enable guaranteed performances between and inside edge datacenters. In my PhD I propose a solution to carry time critical application in legacy networks as it does not require to change the whole architecture. I show the benefits of its implementation in TSN networks for a future-proof solution with improved resource usage. To carry time critical traffic in legacy I propose to create a path by isolating and scheduling time critical traffic on a channel with guaranteed latency. With this construction, I build an algorithm to perform latency variation compensation enabling a constant latency transmission for time critical traffic. In a second time, propose a synchronization scheme and implemented a monitoring network primarily used here for latency monitoring, helping me gain insights on the distribution of latency that my protocol creates. Lastly, with an improved latency compensation algorithm, I demonstrate better jitter performances and study the turn-up time for our protocol enabling resource usage only when time-critical traffic is present. In my PhD I demonstrate, with an FPGA implementation and commercial product, latency variation reduction enabling OT and telecommunications network applications to run on legacy and TSN augmented network
Sidibe, Mamadou Gouro. "Métrologie des services audiovisuels dans un contexte multi-opérateurs et multi-domaines réseaux". Versailles-St Quentin en Yvelines, 2010. http://www.theses.fr/2010VERS0068.
Pełny tekst źródłaAccess to multimedia services over heterogeneous networks and terminals is of increasing market interest, while providing end-to-end (E2E) Quality of Service (QoS) guarantees is still a challenge. Solving this issue requires to deploy new E2E management architectures including components that monitor the network QoS (NQoS) parameters, as well as the Quality of Experience (QoE) of the user. In this thesis, we first propose an E2E Integrated QoS Management Supervisor for an efficient provisioning, monitoring and adaptation of video services using the MPEG-21 standard. We then propose a novel QoE-aware monitoring solution for large-scale service connectivity and user-perceived quality monitoring over heterogeneous networks. The solution specifies a scalable cross-layer monitoring architecture, comprising four types of QoS monitoring agents operating at node, network, application and service levels. It also specifies related intra/inter-domain signalling protocols
Khaldon, Hassan. "Architecture de contrôleur mémoire configurable et continuité de service pour l'accès à la mémoire externe dans les systèmes multiprocesseurs intégrés à base de réseaux sur puce". Thesis, Grenoble, 2011. http://www.theses.fr/2011GRENT051/document.
Pełny tekst źródłaThe ongoing advancements in VLSI technology allow System-on-Chip (SoC) to integrate many heterogeneous functions into a single chip, but still demand, because of economical constraints, a single and shared main off-chip SDRAM. Consequently, main memory system design, and more specifically the architecture of the memory controller, has become an increasingly important factor in determining the overall system performance. Choosing a memory controller design that meets the needs of the whole system is a complex issue. This requires the exploration of the memory controller architecture, and then the validation of each configuration by simulation. Although the architecture exploration of the memory controller is a key to successful system design, state of the art memory controllers are not as flexible as necessary for this task. Even if some of them present a configurable architecture, the exploration is restricted to limited sets of parameters such as queue depth, data bus size, quality-of-service level, and bandwidth distribution. Several classes of traffic co-exist in real applications, e.g. best effort traffic and guaranteed service traffic, and access the main memory. Therefore, considering the interaction between the memory subsystem and the interconnection system has become vital in today's SoCs. Many on chip networks provide guaranteed services to traffic classes to satisfy the applications requirements. However, very few studies consider the SDRAM access within a system approach, and take into account the specificity of the SDRAM access as a target in NoC-based SoCs. This thesis addresses the topic of dynamic access to SDRAM in NoC-based SoCs. We introduce a totally customizable memory controller architecture based on fully configurable building components and design a high level cycle approximate model for it. This enables the exploration of the memory subsystem thanks to the ease of configuration of the memory controller architecture. Because of the discontinuity of services between the network and the memory controller, we also propose within the framework of this thesis an Extreme End to End flow control protocol to access the memory device through a multi-port memory controller. The simple yet novel idea is to exploit information about the memory controller status in the NoC. Experimental results show that by controlling the best effort traffic injection in the NoC, our protocol increases the performance of the guaranteed service traffic in terms of bandwidth and latency, while maintaining the average bandwidth of the best effort traffic
Hotescu, Oana Andreea. "Vers la convergence de réseaux dans l'avionique". Thesis, Toulouse, INPT, 2020. http://www.theses.fr/2020INPT0044.
Pełny tekst źródłaAFDX 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
Lambert, Anthony. "Méthodes pour l'amélioration de la qualité dans l'Internet inter-domaine". Compiègne, 2009. http://www.theses.fr/2009COMP1826.
Pełny tekst źródłaThe Internet is made of thousands of networks gathered into Autonomous Systems (AS) and controlled by various kinds of administrative entities. In order to provide full connectivity and reachability to the Internet, the AS connect to one another and exchange routing information about their networks through the BGP protocol. This thesis was all about developing new methods to improve the Quality of Service in the Internet at the AS level granularity. We first focused on improving our knowledge of the inter-domain dynamics through tomography and Root Cause Analysis studies. Then, based on the results of these studies, we have developed new timers, which reduce the path exploration phenomenon when applied to the BGP protocol
Medlej, Sara. "Scalable Trajectory Approach for ensuring deterministic guarantees in large networks". Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112168/document.
Pełny tekst źródłaIn critical real-time systems, any faulty behavior may endanger lives. Hence, system verification and validation is essential before their deployment. In fact, safety authorities ask to ensure deterministic guarantees. In this thesis, we are interested in offering temporal guarantees; in particular we need to prove that the end-to-end response time of every flow present in the network is bounded. This subject has been addressed for many years and several approaches have been developed. After a brief comparison between the existing approaches, the Trajectory Approach sounded like a good candidate due to the tightness of its offered bound. This method uses results established by the scheduling theory to derive an upper bound. The reasons leading to a pessimistic upper bound are investigated. Moreover, since the method must be applied on large networks, it is important to be able to give results in an acceptable time frame. Hence, a study of the method’s scalability was carried out. Analysis shows that the complexity of the computation is due to a recursive and iterative processes. As the number of flows and switches increase, the total runtime required to compute the upper bound of every flow present in the network understudy grows rapidly. While based on the concept of the Trajectory Approach, we propose to compute an upper bound in a reduced time frame and without significant loss in its precision. It is called the Scalable Trajectory Approach. After applying it to a network, simulation results show that the total runtime was reduced from several days to a dozen seconds
Yoro, Wilfried. "Modeling the correlation between the energy consumption and the end-to-end traffic of services in large telecommunication networks". Thesis, Evry, Institut national des télécommunications, 2018. http://www.theses.fr/2018TELE0005/document.
Pełny tekst źródłaInternet traffic is growing exponentially. According to Cisco, mobile data traffic will increase sevenfold between 2016 and 2021, growing at a compound annual growth rate (CAGR) of 47%. In order to improve or keep up with users quality of experience (QoE), mobile carriers upgrade the network with additional equipment. As a consequence, the network carbon footprint increases over time, alongside with its energy consumption. In addition, mobile carriers margins are decreasing. Global telecommunication revenues declined by 4% between 2014 and 2015 based on the international telecommunication union (ITU) figures. These concerns fostered a great interest in the research community for reducing networks energy consumption. In this regard, many works in the literature investigate the energy consumed by services on network equipment for optimization purposes notably, focusing on the variable component of energy consumption. Energy consumption of a network equipment is composed of a variable and a fixed components. The variable component is consumed to serve traffic. The fixed component is consumed irrespective of traffic. In this thesis, our objective is to share the responsibility of service categories in the fixed energy consumption. To do so, we use the Shapley value. First, we consider a radio access network and share the responsibility of the service categories it delivers in the fixed energy consumption. The services are classified into five categories, namely, Streaming, Web, Download, Voice and other data services. In addition, we consider the case when some service categories are mandatory to be provided, such as Voice due to legal constraints for instance. Because the Shapley value has a huge computational complexity, we introduce closed-form expressions in order to significantly reduce it. Next, we consider the end-to-end network and all its segments, that is, the mobile access, the fixed access, the collect, the mobile core, the registers, the IP core and the service platforms. For each segment, we share the responsibility of the service categories in the fixed energy consumption with the Shapley-based model introduced in the preceding chapter. We find that Streaming is the service that consumes the most whatever the network segment, except for registers, as it represents the vast majority of Internet traffic. Eventually, we focus on the service categories energy efficiency. First, we consider a base station and compute the services energy efficiency for the cases with and without sleep mode. Then, we consider a radio access network and compute the services energy efficiency with and without a mandatory player. Moreover, we discuss the conditions to not deteriorate the network energy efficiency over time following different upgrade scenarios
Yoro, Wilfried. "Modeling the correlation between the energy consumption and the end-to-end traffic of services in large telecommunication networks". Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2018. http://www.theses.fr/2018TELE0005.
Pełny tekst źródłaInternet traffic is growing exponentially. According to Cisco, mobile data traffic will increase sevenfold between 2016 and 2021, growing at a compound annual growth rate (CAGR) of 47%. In order to improve or keep up with users quality of experience (QoE), mobile carriers upgrade the network with additional equipment. As a consequence, the network carbon footprint increases over time, alongside with its energy consumption. In addition, mobile carriers margins are decreasing. Global telecommunication revenues declined by 4% between 2014 and 2015 based on the international telecommunication union (ITU) figures. These concerns fostered a great interest in the research community for reducing networks energy consumption. In this regard, many works in the literature investigate the energy consumed by services on network equipment for optimization purposes notably, focusing on the variable component of energy consumption. Energy consumption of a network equipment is composed of a variable and a fixed components. The variable component is consumed to serve traffic. The fixed component is consumed irrespective of traffic. In this thesis, our objective is to share the responsibility of service categories in the fixed energy consumption. To do so, we use the Shapley value. First, we consider a radio access network and share the responsibility of the service categories it delivers in the fixed energy consumption. The services are classified into five categories, namely, Streaming, Web, Download, Voice and other data services. In addition, we consider the case when some service categories are mandatory to be provided, such as Voice due to legal constraints for instance. Because the Shapley value has a huge computational complexity, we introduce closed-form expressions in order to significantly reduce it. Next, we consider the end-to-end network and all its segments, that is, the mobile access, the fixed access, the collect, the mobile core, the registers, the IP core and the service platforms. For each segment, we share the responsibility of the service categories in the fixed energy consumption with the Shapley-based model introduced in the preceding chapter. We find that Streaming is the service that consumes the most whatever the network segment, except for registers, as it represents the vast majority of Internet traffic. Eventually, we focus on the service categories energy efficiency. First, we consider a base station and compute the services energy efficiency for the cases with and without sleep mode. Then, we consider a radio access network and compute the services energy efficiency with and without a mandatory player. Moreover, we discuss the conditions to not deteriorate the network energy efficiency over time following different upgrade scenarios
Gaber, Chrystel. "Sécurisation d'un système de transactions sur terminaux mobiles". Phd thesis, Université de Caen, 2013. http://tel.archives-ouvertes.fr/tel-01009369.
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