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Strelle, Torsten. "Next Generation Network (NGN)". Ilmenau Universitätsbibliothek Ilmenau, 2010. http://d-nb.info/1000955737/34.
Pełny tekst źródłaZangheri, Filippo. "Implementazioni di reti di nuova generazione (NGN)". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amslaurea.unibo.it/1274/.
Pełny tekst źródłaSareh, Said Adel Mounir. "Ubiquitous sensor network in the NGN environment". Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0016/document.
Pełny tekst źródłaUbiquités Sensor Network (USN) is a conceptual network built over existing physical networks. It makes use of sensed data and provides knowledge services to anyone, anywhere and at anytime, and where the information is generated by using context awareness. Smart wearable devices and USNs are emerging rapidly providing many reliable services facilitating people life. Those very useful small end terminals and devices require a global communication substrate to provide a comprehensive global end user service. In 2010, the ITU-T provided the requirements to support USN applications and services in the Next Génération Network (NGN) environment to exploit the advantages of the core network. One of the main promising markets for the USN application and services is the e-Health. It provides continuous patients’ monitoring and enables a great improvement in medical services. On the other hand, Vehicular Ad-Hoc NETwork (VANET) is an emerging technology, which provides intelligent communication between mobile vehicles. Integrating VANET with USN has a great potential to improve road safety and traffic efficiency. Most VANET applications are applied in real time and they are sensitive to delay, especially those related to safety and health. In this work, we propose to use IP Multimedia Subsystem (IMS) as a service controller sub-layer in the USN environment providing a global substrate for a comprehensive end-to-end service. Moreover, we propose to integrate VANETs with USN for more rich applications and facilities, which will ease the life of humans. We started studying the challenges on the road to achieve this goal
Sareh, Said Adel Mounir. "Ubiquitous sensor network in the NGN environment". Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0016.
Pełny tekst źródłaUbiquités Sensor Network (USN) is a conceptual network built over existing physical networks. It makes use of sensed data and provides knowledge services to anyone, anywhere and at anytime, and where the information is generated by using context awareness. Smart wearable devices and USNs are emerging rapidly providing many reliable services facilitating people life. Those very useful small end terminals and devices require a global communication substrate to provide a comprehensive global end user service. In 2010, the ITU-T provided the requirements to support USN applications and services in the Next Génération Network (NGN) environment to exploit the advantages of the core network. One of the main promising markets for the USN application and services is the e-Health. It provides continuous patients’ monitoring and enables a great improvement in medical services. On the other hand, Vehicular Ad-Hoc NETwork (VANET) is an emerging technology, which provides intelligent communication between mobile vehicles. Integrating VANET with USN has a great potential to improve road safety and traffic efficiency. Most VANET applications are applied in real time and they are sensitive to delay, especially those related to safety and health. In this work, we propose to use IP Multimedia Subsystem (IMS) as a service controller sub-layer in the USN environment providing a global substrate for a comprehensive end-to-end service. Moreover, we propose to integrate VANETs with USN for more rich applications and facilities, which will ease the life of humans. We started studying the challenges on the road to achieve this goal
Hammami, Ali. "La sécurité des futures architectures convergentes pour des services personnalisés : aspect architectural et protocolaire". Thesis, Paris, ENST, 2013. http://www.theses.fr/2013ENST0039/document.
Pełny tekst źródłaThe emergence and evolution of Next Generation Networks (NGN) have raised several challenges mainly in terms of heterogeneity, mobility and security. In fact, the user is able, in such environment, to have access to many networks, via multiple devices, with a vast choice of services offered by different providers. Furthermore, end-users claim to be constantly connected anywhere, anytime and anyhow. Besides, they want to have a secure access to their services through a dynamic, seamless and continuous session according to their preferences and the desired QoS. In this context, security represents an important concern. In fact, this user-centric session should obviously be secured. However, many challenges arise. In such environment, system boundaries, which were well delimited, become increasingly open. Indeed, there are multiple services which are unknown in advance and multiple communications between services and with users. Besides, heterogeneity of involved resources (terminals, networks and services) in the user session increases the complexity of security tasks. In addition, the different types of mobility (user, terminal, network and service mobility) affect the user-centric session that should be unique, secure and seamless and ensure continuity of services
Томак, В. В., i Ю. М. Колтун. "Модернізація традиційних телефонних мереж з використанням концептуальних принципів NGN". Thesis, ФОП Петров В. В, 2021. https://openarchive.nure.ua/handle/document/18669.
Pełny tekst źródłaNagy, Ľuboš. "Optimalizácia rozloženia signalizačnej záťaže subsystému IMS v sietiach NGN". Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-263404.
Pełny tekst źródłaSILVA, RODRIGO MORGADO DA. "QOS RESOURCES USED IN NGN PROTOCOLS BASED TO THE UMTS STANDARD". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8559@1.
Pełny tekst źródłaEste trabalho aborda um estudo sobre o desempenho de uma rede de dados IP/MPLS, com a implementação dos protocolos de NGN e (Sinalização sobre IP), utilizando a arquitetura Diffserv para oferecimento de QoS. O objeto do estudo está adequado aos padrões do IETF, definidos para arquitetura de core de rede UMTS all-IP. São detalhados o conceito, a arquitetura e os fluxos de chamadas do padrão UMTS e revistos conceitos básicos dos protocolos envolvidos na solução. Para a implementação de QoS no laboratório proposto, são revistos também os principais mecanismos de controle de tráfego Diffserv. Utilizando roteadores, switch´s, emuladores de protocolos e ferramentas de gerência por classes, avalia-se o desempenho do tráfego de uma rede com a implementação de VoIP e SS7oIP. Para o cenário especificado, são estudados: classificação dos protocolos para diferentes fontes de tráfego, disciplinas de serviço, procurando-se obter medidas de desempenho que possam ser úteis em projetos de core de rede, com qualidade de serviço, que possuam as características propostas pelo IETF para o padrão UMTS.
This work approaches a study about the performance of a data network IP/MPLS, with an implementation of NGN protocols (Signaling over IP), using the DiffServ architecture to offer the QoS. The purpose of the study is suitable to the IETF standards, determined by architecture of core network UMTS all-IP. The concept, the architecture and the flux of standards call UMTS are detailed. In order to implement the QoS in the proposed laboratory, the main mechanism of traffic DiffServ control are revised too. Using routers, switch´s, network emulators and classes´ management tools, the performance of a network traffic with the implementation of VoIP and SS7oIP is evaluated. To the specific cenary, are studied the classification protocols for different traffic sources and disciplines of service, searching to get the measures of perform that can be useful in core network projects, with quality of service, that own the proposal characteristics by IETF to UMTS standard.
Колтун, Ю. М., i В. Л. Соболь. "Транспортування сигнальних повідомлень SS#7 в мережі NGN з використанням технології SIGTRAN". Thesis, ФОП Петров В. В, 2020. https://openarchive.nure.ua/handle/document/16405.
Pełny tekst źródłaWu, Yijun. "«User-Centric session» et «QoS dynamique» pour une approche intégrée du NGN". Phd thesis, Paris, Télécom ParisTech, 2010. https://pastel.hal.science/pastel-00579469.
Pełny tekst źródłaThe ability to provide seamless mobility with E2E QoS will be critical to the success of NGN (Next Generation Network). For this aim, the research of this thesis is positioned at the interconnection of three areas: mobility, heterogeneity and user preferences. Our first proposal is in organizational and functional levels, for which we advocate the convergence of three levels in the network (user, control and management) and associated functionality. Thus we get a dynamic QoS-oriented approach in order to satisfy the "User-Centric". For implementing the E2E QoS including personalization in the "User-Centric” session, we proposed a “dynamic E2E QoS Signalling” in the service layer. The proposal provides an end-to-end provisioning among the service components with information on four levels (equipment, access network, core network and service). Considering any impact of mobility, we proposed also a “cross layer E2E Session Binding” in our architecture for ensuring information consistency among the four levels of visibility. Meanwhile, our contribution in the informational dimension focused on the profiles involved in each stage of service life cycle including the QoS criteria, which provide a generic image of the components of the user's system and all environmental resources. Finally, we presented the feasibility of our proposals through the experiments on our platform
Wu, Yijun. "User-centric session et QoS dynamique pour une approche intégrée du NGN". Phd thesis, Télécom ParisTech, 2010. http://pastel.archives-ouvertes.fr/pastel-00579469.
Pełny tekst źródłaManco, Araujo Patricia Norma. "Estudio para la implementación de redes de nueva generación (NGN) en Lima-Metropolitana". Bachelor's thesis, Pontificia Universidad Católica del Perú, 2012. http://tesis.pucp.edu.pe/repositorio/handle/123456789/1630.
Pełny tekst źródłaTesis
Tavares, Sidney Dias. "Análise qualitativa de infraestrutura para uma central de atendimento de nova geração – NGN". reponame:Repositório Institucional da UnB, 2010. http://repositorio.unb.br/handle/10482/8591.
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É possível utilizar a infra-estrutura da NGN com Servidor de Aplicação como Distribuidor Automático de Chamadas (DAC) e Servidores de Mídia como Unidade de Resposta Audível (URA) para substituir uma infraestrutura tradicional de Central de Atendimento com DAC e URAs TDM ? A maior parte das Centrais de Atendimento ( plataformas de “Call Center” ) existentes na planta da Brasil Telecom logo após a privatização eram resultado de aquisições realizadas pelas diversas Empresas do grupo Telebrás, ocasionando uma grande diversidade de tecnologias, portes e localização física das plataformas. Após a privatização das operadoras de telecomunicações, a Brasil Telecom com o objetivo obter uma nova visão centralizada e de holding, determinou uma ação em busca de uma centralização, racionalização e realocação das Centrais de Atendimento herdadas das Empresas anteriores. O principal objetivo na época era a padronização Centrais de Atendimento e obter ganhos de escala pela centralização do atendimento. Ao longo do tempo poucas ações foram tomadas no sentido de organizar o uso e aplicação das plataformas de atendimento, em especial no que diz respeito as tecnologias existentes, resultando em uma diversidade de condições, que vem impedindo um melhor uso desses recursos. Para se atingir as metas de melhoria produtividade e de redução de custos operacionais ações isoladas foram adotadas, porém sem considerar uma visão global da utilização do conjunto de plataformas existentes. Neste sentido o objetivo desta dissertação é realizar uma análise das mais recentes tecnologias de plataformas voltadas para atendimento à clientes verificar se ocorreram reduções de custos nas centrais de atendimento obtidas com a implantação de novas tecnologias IP convergentes. Além disso, este trabalho apresenta alguns estudos de caso de utilização de infraestrutura NGN associadas ao DAC como Servidor de Aplicação e as URAs IP como Servidores de Mídia em substituição de uma estrutura tradicional com DAC e URAs TDM. _______________________________________________________________________________ ABSTRACT
You can use the infrastructure of the NGN with Application Servers such as Automatic Call Distributor (ACD) and Media Servers as IVR (IVR) infrastructure to replace a traditional Call Center ACD and IVR with TDM? Most Service Centers (platforms "Call Center") on the plant in Brazil Telecom after privatization were the result of acquisitions made by various Group companies Telebras, causing a variety of technologies, sizes and physical location of platforms. After the privatization of telecom operators, the Brazil Telecom in order to obtain a new vision of centralized holding and determined action in search of centralization, rationalization and relocation of Central Support Services inherited from previous companies. The main objective then was to standardize Service Centers and obtain economies of scale through centralization of care. Over time, few actions have been taken to organize the use and implementation of service platforms, in particular as regards the existing technologies, resulting in a variety of conditions, which has prevented the best use of resources. To achieve the goals of improving productivity and reducing operating costs isolated actions were taken, but without considering an overview of the use of all the existing platforms. In this sense the goal of this dissertation is an analysis of the latest platform technologies focused on customer service to see if there were cost savings in call centers obtained with the deployment of new converged IP technologies. In addition, this paper presents some case studies of use of NGN infrastructure associated with the ACD as Application Server and IP IVR as Media Server to replace a traditional structure with ACD and TDM IVRs.
Weber, Frank Gerd. "Quality of Service optimisation framework for Next Generation Networks". Thesis, University of Plymouth, 2012. http://hdl.handle.net/10026.1/1199.
Pełny tekst źródłaWu, Hao, i Zhangdui Zhong. "A SECURE MEDIA STREAM COMMUNICATION FOR NEXT GENERATION NETWORK". International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604879.
Pełny tekst źródłaIn NGN, the open interfaces and the IP protocol make the hazard of security aspect increased accordingly. Thereby, it is a very important premise for NGN network operation to afford a good secure media stream communication. In this paper, we will present a secure media stream communication for NGN. Then we will discuss the three parts of the media stream secure communication——media stream source authentication, secret key negotiation and distribution; media stream encryption/decryption in detail. It can effectively realize media stream end-to-end secure communication. Meanwhile, it also makes use of the expanding of former protocol during the secret key negotiation process.
Alaoui, 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 źródłaMalila, Bessie. "Implementation and Performance Evaluation of an NGN prototype using WiMax as an Access Technology". Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/14363.
Pełny tekst źródłaUmair, Muhammad. "Performance Evaluation and Elastic Scaling of an IP Multimedia Subsystem Implemented in a Cloud". Thesis, KTH, Radio Systems Laboratory (RS Lab), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-124578.
Pełny tekst źródłaIP Multimedia Subsystem (IMS) ramverk är ett Next Generation Network (NGN) teknik som möjliggör teleoperatörer att erbjuda multimediatjänster via fasta och mobila nät. Alla IMS infrastruktur protokollen fungera över IP som gör IMS lätt att distribuera på ett moln plattform. Syftet med denna uppsats är att analysera en ny teknik för “cloudifying” den OpenIMS kärninfrastrukturen. Det primära målet med att köra OpenIMS i molnet är att möjliggöra en hög tillgänglighet och horisontellt skalbara Server Home Subscriber (HSS). Den resulterande databasen bör erbjuda hög tillgänglighet och hög skalbarhet. Prototypen utvecklas i detta examensarbete visar en virtualiserad OpenIMS kärna med en integrerad horisontell skalbar HSS. Funktionella och prestanda mätningar av systemet under test (dvs. virtualiserade OpenIMS kärnan med horisontellt skalbara HSS) genomfördes. Resultaten av detta test inkluderar en analys av benchmarking scenarier, CPU-användning, och tillgängligt minne för de virtuella maskinerna. Baserat på dessa resultat drar vi slutsatsen att det är både möjligt och önskvärt att distribuera OpenIMS kärnan i ett moln.
Alphand, Olivier. "Architecture à qualité de service pour systèmes satellites DVB-S/RCS dans un contexte NGN". Phd thesis, Institut National Polytechnique de Toulouse - INPT, 2005. http://tel.archives-ouvertes.fr/tel-00011402.
Pełny tekst źródłaGarcía, Girón Giancarlo. "Propuesta de migración de la red NGN de una operadora implementada en IP hacia MPLS". Bachelor's thesis, Pontificia Universidad Católica del Perú, 2009. http://tesis.pucp.edu.pe/repositorio/handle/123456789/1063.
Pełny tekst źródłaTesis
Alphand, Olivier Diaz Michel. "Architecture à qualité de service pour systèmes satellites DVB-S/RCS dans un contexte NGN". Toulouse : INP Toulouse, 2006. http://ethesis.inp-toulouse.fr/archive/00000231.
Pełny tekst źródłaHammami, Ali. "La sécurité des futures architectures convergentes pour des services personnalisés : aspect architectural et protocolaire". Electronic Thesis or Diss., Paris, ENST, 2013. http://www.theses.fr/2013ENST0039.
Pełny tekst źródłaThe emergence and evolution of Next Generation Networks (NGN) have raised several challenges mainly in terms of heterogeneity, mobility and security. In fact, the user is able, in such environment, to have access to many networks, via multiple devices, with a vast choice of services offered by different providers. Furthermore, end-users claim to be constantly connected anywhere, anytime and anyhow. Besides, they want to have a secure access to their services through a dynamic, seamless and continuous session according to their preferences and the desired QoS. In this context, security represents an important concern. In fact, this user-centric session should obviously be secured. However, many challenges arise. In such environment, system boundaries, which were well delimited, become increasingly open. Indeed, there are multiple services which are unknown in advance and multiple communications between services and with users. Besides, heterogeneity of involved resources (terminals, networks and services) in the user session increases the complexity of security tasks. In addition, the different types of mobility (user, terminal, network and service mobility) affect the user-centric session that should be unique, secure and seamless and ensure continuity of services
Albini, Gabriele Luigi Aldo. ""An Analysis of the European Telecommunications Strategic Environment: How Can Strategic Actions Be Defined to Adapt to the New Scenario? A Telefónica Case Study"". Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-124576.
Pełny tekst źródłaCulverhouse, Mark. "User-centric quality of service provisioning in IP networks". Thesis, University of Plymouth, 2012. http://hdl.handle.net/10026.1/1233.
Pełny tekst źródłaPeña, Zamudio Paulina Natalia. "Estudio de Arquitecturas para la Convergencia de Telefonía Fija-Móvil". Tesis, Universidad de Chile, 2007. http://repositorio.uchile.cl/handle/2250/104540.
Pełny tekst źródłaLopes, Roberto Rigolin Ferreira. "Uma abordagem ciente de contexto e embasada por feedbacks para o gerenciamento de handovers em ambientes NGN". Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-05092012-143719/.
Pełny tekst źródłaThe evolution of mobile computing improves communication and collaboration among people. The main pillars of this transformation are: the development and production of mobile devices with multimedia capabilities and equipped with two or more network interfaces, the availability of ubiquitous wireless connectivity and the popularity of online social applications. Online social networks noteworthy features that allow for the creation and sharing of digital content within social circles, also called textit Social Media. Web Services attach the geographic location of the device to the digital content, creating the so-called textit location-based social media. Equipped with their phones and tablets, people are creating and consuming social media anywhere. However, it is a challenge to keep such mobile devices connected in current and next generation wireless network environments textit e.g., multiple ISPs (Internet Service Provider) and multiple communication technologies. Recent researches proposes components for managing wireless connectivity that make simultaneous use of the current and past connectivity context data. Such components are mobility predictors, handovers mechanisms or mobility managers that use connectivity context data in a particular way to achieve its purposes. In this research, we propose feasiable a methodology that orchestrates the main components of the connectivity management in a feedback loop. We argue that the process of gathering connectivity context data can be designed as a sensing system, whose sensors are wireless network interfaces. As part of this sensing system, the social circles may assist the management of connectivity by sharing connectivity context data. The main idea is to use location-based services to share connectivity context data within social circles. Thus, online social networks add scale to the system and enables collaboration around recent, local, and social context data. The goal is to enhance wireless connectivity experiences in terms of QoS ( textit Quality of Service) metrics textit e.g., throughput, latency and signal quality. We report how this data is handled using complex networks metrics e.g., vertexs strength and centrality degree, to identify high density handover areas, define the mobile users reputation and to reveal the networks coverage. Real experiments showed that collaboration can improve QoS metrics from ~18 to ~30% if compared to just use a mobility predictor or a modern operational system, respectively. The discussion unfolds with focus on the collaborations efficiency as function of time, number of users, discovered area size and mobility patterns. The promising experimental results indicate that our solution can enhance mobile users wireless connectivity experiences
Augusto, Mario Ezequiel. "Acessos sob demanda em NGN: impactos das trocas dinâmicas entre provedores Wi-Fi para o usuário móvel". Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-27032013-163511/.
Pełny tekst źródłaCurrently, the usage of mobile devices with multiple network interfaces for Internet access has been growing, characterizing partially the Next Generation Networks (NGN). Other features of the NGN are access on demand, in which the customer is not, necessarily, user of a single provider and would use the network of other providers as needed, and the user-centric handover management, in which the user decides which network to connect to and at which time. There are some implications related to access on demand which can improve or worsen the user access experience and cause some impacts related to throughput, paid value, number of handovers, among others. The mobile can manage the handovers but he needs to obtain information about available networks as, for example, price and incentives, in addition to the information already obtained currently as received signal strength and provider identifier (SSID). However, providers do not have an automated system to provide such information to mobile devices. This thesis presents an evaluation of the impacts of dynamic switching between Wi-Fi providers for the mobile user, comparing access on demand to the traditional approach (as currently done). As methodology for this evaluation, simulations were performed in a scenario with Wi-Fi providers with different profiles, in which the number of handovers performed, the amount of received bytes, and the paid value were analyzed. In these simulations the mobile user could prioritize the cost of the connection, the received signal strength, and the load on the access point to decide the handover. This thesis also presents an architecture for additional information provisioning about available networks in an access on demand environment with user-centric handover management, called MYHand (MIH-based and Y-Comm-based Handover Management). For this purpose, an architecture for access on demand called Y-Comm and the IEEE 802.21 standard (MIH Media Independent Handover) were used. The results of this thesis contribute to the handover management and ubiquity of Internet access in NGN. The MYHand architecture will assist the mobile device to obtain more information, necessary to the handover decision, optimizing it. With the results of the simulations, the mobile device can predict how much a particular decision may benefit the user experience in terms of connection quality and cost
Campacci, Rodrigo Bellotto. "Handover vertical em redes NGN: integrando a sinalização do domínio de comutação de circuitos e o IMS". Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-15092008-152814/.
Pełny tekst źródłaThis work intends to study and implement the integration between the circuit switching domain and the IP Multimedia Subsystem (IMS) to support vertical handovers that are between different access networks, such as Global System for Mobile communications (GSM) and WiFi. Therefore the specifications are incomplete about this topic in standards from the entities who works with this subject. Then, is presented a new proposal for this integration: a new functional entity to realize this integration: the Call Data Storage Function (CDSF), which interacts with other modules of VCC Service and guarantees that some information shared between modules are not lost, due to conversion of signalling protocols in the interface between domains. Besides that, CDSF helps in the control of allocation of reference address that are used to route calls from one domain to another. Access protocols to CDSF are defined and CDSF methods are exposed. The CDSF design uses a modular approach, which allows future improvements, just changing modules. As case studies to validate this work proposal, call scenarios are presented that uses the VCC Service, using CDSF. Finally, it is concluded that the integration between domains is viable if this work proposal is used. It is presented, as well, that the separation between control plans and data plans is one of the main contributions of NGN architecture to the success of its implementations, like IMS. Furthermore, it is exposed the advantages that VCC Service can aggregate to IMS, contributing for more rapidly adoption by telecommunications operators, considering that this service helps the networks integration, adding convergence, mobility and continuity.
Yokoyama, Roberto Sadao. "Gerenciamento de handovers em next generation networks com agregação de contexto". Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-26082009-172814/.
Pełny tekst źródłaIn the NGN (Next Generation Networks) users can connect their Internet devices to different network technologies. In addition to a seamless communication, users desire new and personalized services. In this sense, this thesis exploits the context-aware information in NGN environments. The main propose is to capture the context information about the time involved by the use of wireless link for selecting the target access point and on the handover procedure. This context information is applied to the context-aware services. The propose is validated through two scenarios: the first is a mashup that shows the availability of wireless networks in a particular location, and the second is a prototype of a connection manager to attend user´s preferences. In addition, two evaluations are accomplished on the impact by the use of context information over handovers. Thus, an NGN testbed is deployed with Mobile IP protocol
Elloumi, Imène. "Gestion de la mobilité inter réseaux d'accès et de la qualité de service dans une approche NGN/IMS". Toulouse 3, 2012. http://thesesups.ups-tlse.fr/1852/.
Pełny tekst źródłaIn the new landscape of multi-service convergence of the NGN/IMS approach and considering the needs of the user of NGN, that is mobile in a very heterogeneous environment, we have proposed informational, architectural and organizational adaptations in order to monitor the inter network mobility of access and ensure the complete continuity of the QoS in such an environment. Indeed, we have noticed that the bases of the knowledge of the users' profiles lack decision-making information relative to a later analysis. Consequently, there is a need to raise the level of abstraction of the available information. Our first contribution is therefore informational. Decisional information are added to the HSS basis to enrich the knowledge base, which is expressed under the form of "profile of QoSd", where the new information inform directly the decisions to be taken according to the user's profile (preferences QoS and pricing, bandwidth, location. . . . ). Thus, this new knowledge basis will allow dynamic adaptations and will, therefore, make the IMS session more effective. We have, therefore, modeled QoS information relative to users' profiles and IMS offered services by using the CIM classes that we call "QoS Pattern of the IMS information". From the architectural point of view, we have simulated new components to intercept the useful lacking information to ensure the management of an IMS session in real time. Our second contribution consists in adding new components of constituent management IQMS: "Interworking QoS Management Subsystem", that collect the extracted information from the protocols at all levels in a mobile IMS session and will be able to manage the users' mobility (QoS handover and QoS interworking). Our third contribution is proposed organizational subsystem for QoS management in the multiple providers context when a user can to subscribe to one or several providers according to QoS criteria "Interworking QoS Management Subsystem multiple providers: IQMSmp"
Johansson, Jonatan. "An IMS-based VOD Service Supporting Session Continuation". Thesis, Linköping University, Department of Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-52343.
Pełny tekst źródłaIP-based TV (IPTV) is gradually replacing traditional means for broadcasting. At the same time, players from the telecom industry is seeking to create a new, standardized architectural framework for delivering all kinds of multimedia services over IP to end users; the IP Multimedia Subsystem (IMS).
This thesis is about video on demand, one of the more popular services enabled by IPTV. The thesis starts out by introducing the reader to IMS and IPTV and presents the current work in the area of IMS-based IPTV, done by the TISPAN committee of the ETSI.
The author then takes an explorative approach in investigating how a signaling schema for an IMS-based VOD service could look like, based on TISPAN’s existing work. The service is subject to an extra requirement; it should support session continuity, meaning it should be possible to resume the streaming of a video where the user left off, possibly on a different device. The investigation shows that it is possible to combine SIP and RTSP in several ways to get the desired behaviour.
The second part of the results consists of a proof of technology-implementation of the signaling schema that is the output from the first part. The implemented service runs on an IPTV set-top box on the client side, and a regular PC on the server side. The service uses open source software to a great extent and is fairly portable. A sample VOD session using the implemented system is presented along with full message contents.
The thesis concludes with a summary of the results and a discussion on what has been left out from the implementation and possibly subject to further studies. Finally, there is a brief summary on the recent developments within the field of IMS-based IPTV.
Бураківська, А. О., i А. В. Омельченко. "Аналіз методів забезпечення якості послуг мультисервісних мереж". Thesis, ХНУРЕ, 2021. https://openarchive.nure.ua/handle/document/16487.
Pełny tekst źródłaLarsen, Dana B. "IN SEARCH OF THE THIRD FORCE: THE AMERICAN LOBBY FOR NGO DINH DIEM (VIETNAM)". Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/292095.
Pełny tekst źródłaONALI, TATIANA. "Quality of service technologies for multimedia applications in next generation networks". Doctoral thesis, Università degli Studi di Cagliari, 2008. http://hdl.handle.net/11584/265976.
Pełny tekst źródłaRoman, Jennie, i Lisa Ringberg. "Ngn som oxå känner att d e så ball med språk? *s* : - En kvalitativ studie om språket i gästböcker på communities på Internet". Thesis, Jönköping University, School of Education and Communication, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-1243.
Pełny tekst źródłaSomeone that also feels language is fun? *lol*
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A qualitative study about the language used in community guest books on the Internet
Lisa Ringberg and Jennie Roman
This is a study about the written language used in two different internet community guestbooks were there is an age difference of 11,2 years between the registered users of the two communitiess. The two communities chosen for the study were LunarStorm, with an average age of 18 years and Familjeliv, with an average age of 29,2 years. During 4 weeks, from 071106-071201, 50 randomly selected guestbook posts were collected from each community. Out of these posts, 25 were written by women and 25 were written by men. We have chosen to concentrate our study on the use of expression symbols – by this we mean the images that can be created with symbols that sometimes go under the name of smilies. We also looked at the use of symbol combinations – by this we mean a combination of characters and letters that go together to create some sort of symbol. We studied the use of shortenings, alternative spellings and the use of sound imitating words. Since we were not able to find much earlier research in this specific subject area, much of this study is based on our own pre comprehension. The earlier research we managed to acquire is more concerned with how the language is used on the Internet in general and is not specifically aimed at internet communities and guestbooks. It’s aimed at what a conversation is and how it’s built, since much of the written language used on the Internet resembles our own spoken language. The written language on the Internet generally contains uses of shortenings, expression symbols, alternative spellings, sound imitating words and symbol combinations and also ungdomsspråk. The method we implemented in this study was a qualitative approach and we especially focused on a text - and contents analysis. We chose this method mainly because we wanted to see what is unique in each community and the writing in the guestbook posts and not what is general. We want to highlight the unique and the qualitative aspects from the guestbook posts and not for example the number of expression symbols. The study has been tested for its validity and reliability to ensure the accuracy of its results.
The results we got didn’t agree with what we believed before the study. We thought that the younger community members of LunarStorm would use the categories we studied far more often than those of Familjeliv, but instead it showed that the members of LunarStorm and the members of Familjeliv used about the same expression symbols and symbol combinations. When it came to shortenings the members of Familjeliv used more correct shortenings than the members of LunarStorm. The alternative spellings differed, since one word had a number of different alternative spellings. When it came to the last category, sound imitating words, these were more frequently used by the members of LunarStorm than the members of Familjeliv. The younger target group used many different variations of these, but the most common was the sound imitating words for a laugh for example *hehe*.
Keywords: Internet, communities, guestbooks, expression symbols, symbol combinations, alternative spellings, shortenings, sound imitating words
Ngn som oxå känner att d e så ball me språk? *s*
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En kvalitativ studie om språket i gästböcker på communities på Internet
Lisa Ringberg och Jennie Roman
Detta är en studie som handlar om det skrivna språket i gästböcker på två communities på Internet med en medelålderskillnad på 11,2 år. De två communities vi valt att samla in vårt material ifrån är ungdomscommunityt LunarStorm med en medelålder på 18 år och föräldrarcommunityt Familjeliv med en medelålder på 29,2 år. Vår studie gick ut på att vi under 4 veckor, från 071106-071201, samlade in 50 stycken slumpmässigt utvalda gästboksinlägg från vardera community, varav 25 stycken var skrivna av kvinnor och 25 stycken var skrivna av män. Det vi har inriktat vår studie på är förekomsten av uttryckssymboler – med uttryckssymboler menar vi de små bilder som även ibland går under namnet smilies, symbolkombinationer– med symbolkombinationer menar vi kombinationer av tecken och bokstäver som tillsammans bildar någon form av symbol, förkortningar, alternativa stavningar samt förekomsten av ljudhärmande ord. Eftersom det inte finns mycket tidigare forskning inom detta område specifikt har mycket av studien baserats på vår egen förförståelse. Den tidigare forskning vi tagit del av handlar mer om hur språket generellt används på Internet och inte specifikt på communities och i gästböcker. Den tidigare forskning vi tagit del av behandlar vad ett samtal är och hur det är uppbyggt eftersom mycket av det skrivna språket på Internet liknar vårt talspråk, det skrivna språket på Internet mer generellt innehållande förkortningar, uttryckssymboler, alternativa stavningar, ljudhärmande ord samt symbolkombinationer och tillsist ungdomsspråk. Som metod för att genomföra denna studie har vi använt oss av en kvalitativ ansats och då speciellt inriktat oss text- samt innehållsanalys. Denna metod valde vi främst för att vi ville se vad som är unikt för varje community och dess skrift i gästböcker och inte vad som är generellt. Vi vill framhäva det unika och kvalitativa i gästboksinläggen och inte antal av till exempel uttryckssymboler. Undersökningen har sedan testats genom validitet och reliabilitet.
Resultaten vi kom fram till gick emot den förförståelse vi hade sedan tidigare, där vi trodde att de yngre medlemmarna på LunarStorm skulle använda sig mer av samtliga kategorier vi studerat. Istället visade det sig att medlemmarna på LunarStorm och medlemmarna på Familjeliv använde sig av ungefär samma uttryckssymboler och symbolkombinationer. När det kommer till förkortningar använde sig medlemmarna på Familjeliv av fler korrekta förkortningar än medlemmarna på LunarStorm. De olika sätten att stava skiljde sig sedan mycket åt i utseende då ett ord kunde ha flertalet alternativa stavningar. När det kommer till den sista kategorin, ljudhärmande ord användes dessa mycket flitigare bland LunarStorm användare än bland Familjelivs. Den yngre målgruppen använde sig av många olika varianter av dessa, men vanligast var ljudhärmande ord för skratt som till exempel *hehe*.
Nyckelord: Internet, communities, gästböcker, uttryckssymboler, symbolkombinationerr, alternativa stavningar, förkortningar, ljudhärmande ord
Song, Songbo. "Advanced personalization of IPTV services". Thesis, Evry, Institut national des télécommunications, 2012. http://www.theses.fr/2012TELE0001/document.
Pełny tekst źródłaInternet Protocol TV (IPTV) delivers television content to users over IP-based network. Different from the traditional TV services, IPTV platforms provide users with large amount of multimedia contents with interactive and personalized services, including the targeted advertisement, on-demand content, personal video recorder, and so on. IPTV is promising since it allows to satisfy users experience and presents advanced entertainment services. On the other hand, the Next Generation Network (NGN) approach in allowing services convergence (through for instance coupling IPTV with the IP Multimedia Subsystem (IMS) architecture or NGN Non-IMS architecture) enhances users’ experience and allows for more services personalization. Although the rapid advancement in interactive TV technology (including IPTV and NGN technologies), services personalization is still in its infancy, lacking the real distinguish of each user in a unique manner, the consideration of the context of the user (who is this user, what is his preferences, his regional area, location, ..) and his environment (characteristics of the users’ devices ‘screen types, size, supported resolution, ‘‘ and networks available network types to be used by the user, available bandwidth, ..’) as well as the context of the service itself (content type and description, available format ‘HD/SD’, available language, ..) in order to provide the adequate personalized content for each user. This advanced IPTV services allows services providers to promote new services and open new business opportunities and allows network operators to make better utilization of network resources through adapting the delivered content according to the available bandwidth and to better meet the QoE (Quality of Experience) of clients. This thesis focuses on enhanced personalization for IPTV services following a user-centric context-aware approach through providing solutions for: i) Users’ identification during IPTV service access through a unique and fine-grained manner (different from the identification of the subscription which is the usual current case) based on employing a personal identifier for each user which is a part of the user context information. ii) Context-Aware IPTV service through proposing a context-aware system on top of the IPTV architecture for gathering in a dynamic and real-time manner the different context information related to the user, devices, network and service. The context information is gathered throughout the whole IPTV delivery chain considering the user domain, network provider domain, and service/content provider domain. The proposed context-aware system allows monitoring user’s environment (devices and networks status), interpreting user’s requirements and making the user’s interaction with the TV system dynamic and transparent. iii) Personalized recommendation and selection of IPTV content based on the different context information gathered and the personalization decision taken by the context-aware system (different from the current recommendation approach mainly based on matching content to users’ preferences) which in turn highly improves the users’ Quality of Experience (QoE) and enriching the offers of IPTV services
Armant, Olivier. "A genomic approach to study the molecular pathways of differentiation regulated by the proneural genes Mash 1 and Ngn 2 during development of the mouse telencephalon". Université Louis Pasteur (Strasbourg) (1971-2008), 2005. https://publication-theses.unistra.fr/public/theses_doctorat/2005/ARMANT_Olivier_2005.pdf.
Pełny tekst źródłaThe main cellular steps of neurogenesis start to be well established in mammals. But the molecular mechanisms leading to the neuronal diversity produced from a reduced population of neural stem cells are still not understood. The proneural activity of several transcription factors of the bHLH (basic Helix Loop Helix) family is conserved through evolution from Drosophila to mammals and play crucial roles to instruct the differentiation of neurons from neural stem cells. I have studied, at the transcriptional level, the molecular pathways regulated by proneural factors Neurogenins and Mash1 during development of the mouse telencephalon. First, I show that in parallel to the activation of a generic neuronal differentiation programme, proneural genes specify different neuronal subtype identities. Indeed, during the early phase of cortical development Ngn1 and Ngn2 induce a glutamatergic fate, while in the same time inhibit the subcortical GABAergic phenotype regulated by Mash1. I show also the characterisation of target genes directly regulated by proneural genes. In particular numerous genes from the Delta family, involved in the Notch signalling pathway, are presumably directly regulated by Mash1 in the telencephalon. Finally the genome wide analysis of the neuronal differentiation pathways regulated by proneural genes provide a very efficient tool for the discovery of new genes putatively involved in the differentiation of neuronal populations, and potentially affected in neurological diseases. I describe in this work preliminary results for the functional analysis of two genes, Delta like 1 and Nemo like kinase, regulated in the telencephalon by proneural genes
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 źródłaSchreiner, Florian [Verfasser], Thomas [Akademischer Betreuer] Magedanz, Odej [Akademischer Betreuer] Kao, Serge [Akademischer Betreuer] Fdida i Alfonso [Akademischer Betreuer] Ehijo. "Resource efficient quality of service management for NGN services in federated cloud environments / Florian Schreiner. Gutachter: Thomas Magedanz ; Odej Kao ; Serge Fdida ; Alfonso Ehijo. Betreuer: Thomas Magedanz". Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1068255986/34.
Pełny tekst źródłaGonzález, Santana Arturo. "Cambios en la expresión de los genes PDX-1 y NGN-3 relacionados con la falla de la célula beta en pacientes mexicanas con DMG en comparación con pacientes embarazadas sin DMG". Tesis de maestría, Universidad Autónoma del Estado de México, 2020. http://hdl.handle.net/20.500.11799/109120.
Pełny tekst źródłaCiprés Grupo Médico
BENETTI, Elisa. "Architetture, Servizi e Multimedialità nei Nuovi Media". Doctoral thesis, Università degli studi di Ferrara, 2012. http://hdl.handle.net/11392/2388784.
Pełny tekst źródłaBlomberg, Mikael. "Jag fattar inte att man kan kalla ngn jävla hora på skämt : en enkätstudie om könsord som används vid mobbning och sexuella trakasserier hos ungdomar i år 7-9". Thesis, Linköping University, Department of Educational Science (IUV), 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1607.
Pełny tekst źródłaArbetets huvudsyfte var bland annat att undersöka könsord och ord med könsanknytning som används vid mobbning/sexuella trakasserier i skolan. Enkätstudien nådde 141 pojkar och 136 flickor i år 7-9. Enligt de redovisade resultaten är användning av kränkande ord i mobbningssammanhang mest förekommande, före ryktesspridning och fysisk kontakt. Åtta procent av alla eleverna anser sig ha känt sig mobbade/sexuellt trakasserade dagligen. Fem procent har mobbat eller utsatt någon för sexuella trakasserier varje dag. Fyrtionio procent av eleverna använder sig av kränkande ord oftast i skolan. Orden används mest i skolans korridor. De flesta elever är överens om att deras föräldrar ingriper i större utsträckning än andra vuxna då de hör ifrågavarande ord. Totalt sett har ett fyrtiotal ord presenterats av eleverna. De mest frekventa orden har analyserats kvantitativt. Eleverna i alla åldrar är medvetna om de grova ordens kränkningsgrad. Ungefär hälften av alla svarande anger att samma ord kan ha större eller mindre kränkningsgrad beroende på situationen i vilken orden används. Både flickor och pojkar anser generellt sett att könsord används i större utsträckning mot flickor.
Vingarzan, Dragos [Verfasser], Thomas [Akademischer Betreuer] Magedanz, Klaus [Akademischer Betreuer] David, Nöel [Akademischer Betreuer] Crespi, Paolo [Akademischer Betreuer] Bellavista i Axel [Akademischer Betreuer] Küpper. "Design and implementation aspects of open source Next Generation networks (NGN) test-bed software toolkits / Dragos Vingarzan. Gutachter: Axel Küpper. Betreuer: Thomas Magedanz ; Klaus David ; Nöel Crespi ; Paolo Bellavista". Berlin : Technische Universität Berlin, 2014. http://d-nb.info/1067385576/34.
Pełny tekst źródłaScata', Marialisa. "Security Analysis of ICT Systems based on Bio-Inspired Models". Doctoral thesis, Università di Catania, 2012. http://hdl.handle.net/10761/1095.
Pełny tekst źródłaGregor, Lukáš. "Ověřování stabilního provozu sítě nové generace měřením přenosových parametrů". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377341.
Pełny tekst źródłavon, Essen Rickard. "Threat Analysis of Video on Demand Services in Next Generation Networks". Thesis, Linköpings universitet, Institutionen för datavetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-63082.
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
Huang, Cuiting. "Service composition in converged service environment". Thesis, Evry, Institut national des télécommunications, 2012. http://www.theses.fr/2012TELE0009/document.
Pełny tekst źródłaThe goal of this thesis is to provide enhanced mechanisms to deploy competitive services in a rapid and cost-effective manner. To achieve this goal, we first propose an automatic service composition model relying on an IMS/Web converged environment. This service composition model is intended to be one in which even non-professional users can easily reuse existing services to create new services. To further improve the automatic service composition feature, three strategies including passive update, active update and hybrid update are proposed and analyzed. We then propose a centralized service exposure framework for a variey of services, including Telecom / Web / Device / user-generated services. This framework aims at enhancing the user-centric and convergence features, and providing the unified access to diverse services.Subsequently, two P2P based service information sharing models are designed to complement the centralized service exposure model : i) A hierarchical P2P based model, which reuses Chord for guaranteeing the service discovery efficiency, meanwhile adopts the concept of abstract service publication and discovery for enabling the ambiguous services searching. ii) A triplex P2P overlay based model, which mainly targets the devices offered services. In this model, we use the gateways to delegate the devices residing in them for the global service exposure, and use a triplex overlay based architecture, which includes an underlying unstructured P2P layer, a Semantic Overlay Network (SON) based overlay and a service dependency overlay, for the service information sharing and discovery
Маслак, Михайло Олексійович. "Транспортні мережі на основі технології MPLS, принципи, перспективи розвитку". Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/41589.
Pełny tekst źródłaThe purpose of the work is to study transport networks based on MPLS technology. Analysis of directions of MPLS technology adaptation to achieve compliance with the requirements of transport networks. This paper considers transport network as an integral part of telecommunication system, analyzes technical principles of MPLS networks operation, reviews main technical principles of MPLS TP transport networks and their differences from MPLS principles, analyzes the issue of monitoring and management of MPLS TP networks and the direction of further development of MPLS TP networks, in particular, the transition to GMPLS technology.
SONG, Songbo. "Advanced personalization of IPTV services". Phd thesis, Institut National des Télécommunications, 2012. http://tel.archives-ouvertes.fr/tel-00814620.
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