The Experts below are selected from a list of 12342 Experts worldwide ranked by ideXlab platform
Advanced Policy Server - One of the best experts on this subject based on the ideXlab platform.
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Resolving Ten MVNO Issues with EPS Architecture,
2012Co-Authors: Advanced Policy ServerAbstract:Abstract — The numbers of MVNOs (Mobile Virtual Network Operator) are growing globally, but so do their operational and business issues. This paper identifies these issues and looks for remedies via the new 4G architecture and interfaces. The paper examines the ‘Full ’ MVNO model as a ‘Home ’ network in a pseudo roaming scenario (National Roaming), allowing MVNO to connect to multiple MNOs through the discovery and selection process, and to benefit from the access agnostic nature of EPS (Enhanced Packet System). Greater MVNO independence can resolve many of the MVNO’s underlying issues, e.g. launching services and variable charging that are enabled by IMS Voice and non-Voice. Other persisting issues are solved by the MVNO defining user centric policies that are conveyed to the MNO transport network through new interfaces for the Policy & Charging Rules Function (PCRF). Particular issues can be resolved by integrating the User Data Repository (UDR) with policies and charging rules. MVNO also need to support the value chain via ‘Sponsored Data ’ from service/content providers and Receive Traffic Detection Function (TDF) reports on user context and behaviour. This paper argues that these features strengthen the Full MVNO position in the layered business model in EPS, and that the identified issues are substantially alleviated
Crespi Noel - One of the best experts on this subject based on the ideXlab platform.
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Resolving ten MVNO issues with EPS architecture, VoLTE and advanced policy server
'Institute of Electrical and Electronics Engineers (IEEE)', 2011Co-Authors: Copeland Rebecca, Crespi NoelAbstract:International audienceThe numbers of MVNOs (Mobile Virtual Network Operator) are growing globally, but so do their operational and business issues. This paper identifies these issues and looks for remedies via the new 4G architecture and interfaces. The paper examines the "Full" MVNO model as a "Home" network in a pseudo roaming scenario (National Roaming), allowing MVNO to connect to multiple MNOs through the discovery and selection process, and to benefit from the access agnostic nature of EPS (Enhanced Packet System). Greater MVNO independence can resolve many of the MVNO's underlying issues, e.g. launching services and variable charging that are enabled by IMS Voice and non-Voice. Other persisting issues are solved by the MVNO defining user centric policies that are conveyed to the MNO transport network through new interfaces for the Policy & Charging Rules Function (PCRF). Particular issues can be resolved by integrating the User Data Repository (UDR) with policies and charging rules. MVNO also need to support the value chain via "Sponsored Data" from service/content providers and Receive Traffic Detection Function (TDF) reports on user context and behaviour. This paper argues that these features strengthen the Full MVNO position in the layered business model in EPS, and that the identified issues are substantially alleviated
Del Río Ponce Alberto - One of the best experts on this subject based on the ideXlab platform.
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Estudio de movilidad para tráfico IP Multicast en un emulador de redes
2018Co-Authors: Del Río Ponce AlbertoAbstract:Son las nuevas tendencias con una aparición masiva de nodos móviles en la red, las que crean un interés por buscar soluciones en el ámbito de la movilidad, siendo el objetivo del proyecto el estudio del intercambio de tráfico multicast en nodos móviles. Sin usar una solución específica, se extraen ideas de una solución de movilidad (PMIP) para la consecución del objetivo. A lo largo de la memoria se detallan las diversas herramientas utilizadas, partiendo de un emulador de redes denominado CORE y las implementaciones de protocolos que permitan transmitir tráfico. Para la consecución del tráfico, se estudian protocolos de routing unicast y multicast. En el caso unicast, Routing Information Protocol (RIP) y Open Shortest Path First (OSPF) y sus versiones adaptadas a direcciones IPv6, para determinar las rutas entre nodos. Para multicast, se estudia un protocolo de routing multicast, Protocol Independent Multicast (PIM) que se encarga de que los routers entiendan como reenviar el tráfico de las fuentes a los nodos suscritos a los grupos multicast. Los protocolos de routing se consiguen obtener gracias a herramientas que los implementan, como Pimb, XORP y MRD6. Finalmente, se estudia la recepciónn de tráfico multicast en movilidad y se obtienen unos malos resultados. Según las pruebas obtenidas, se obtienen retrasos de hasta un minuto en la recepción de tráfico en movilidad debido a la frecuencia de envío de mensajes MLD. Se plantan las bases de futuros estudios, entre ellos, una posible mejora en la transmisión de los mensajes MLD para mejorar las prestaciones. Adicionalmente, se estudian posibles vías de expansión de mercado, siendo esta memoria únicamente una herramienta para el estudio de movilidad en tráfico multicast, sin ánimo de lucro a corto plazo.The proliferation of scenarios with massive numbers of mobile nodes in the network creates a research opportunity due to the necessity of solutions in the filed of mobility. In this way, the aim of this project is to tackle this issue carrying out a study of the multicast Traffic exchanged in mobile nodes. Without using a specific solution, we extract information from a mobility solution (PMIP) for the achievement of the objective. Throughout the memory are detailed the various tools with which the project is developed, based on a network emulator called CORE and the protocols implementations that allow Traffic to be transmitted. For the data transmission, it is necessary to study the unicast routing protocols. In this case, both Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) and their versions adapted to IPv6 addresses have been thoroughly studied. In order to get multicast Traffic, a multicast routing protocol, Protocol Independent Multicast (PIM), is studied, which allows nodes to subscribe to multicast groups and Receive Traffic of this type. The routing protocols are obtained thanks to tools that have them implemented internally, such as Pimb, XORP and MRD6. Finally, we check the functionality of multicast Traffic reception in mobility, and the results obtained are bad. According to the test, delays transmissions in mobility are up to one minute due to the sending frequency of MLD messages. We show future studies and research, among them, a possible improvement in MLD messages transmissions. Finally, we study possible ways of market expansion. However, we emphasize the fact that this thesis is a mere tool for mobility and multicast Traffic, with no short-term profit motivation.Ingeniería de Sistemas de Comunicacione
González Díaz Sergio - One of the best experts on this subject based on the ideXlab platform.
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Evaluación de mecanismos de soporte de tráfico multicast con movilidad basada en red
2015Co-Authors: González Díaz SergioAbstract:Con el auge actual de Internet y el incremento en el uso de dispositivos móviles ha aumentado el consumo de contenido multimedia, del cual cabe destacar el streaming de vídeo, el vídeo bajo demanda y la IPTV. Muchos de estos servicios hacen uso de Multicast, un método de transmisión de datos a múltiples redes y destinatarios de manera simultánea. Para poder realizar transmisiones de datos multicast hay direcciones IP reservadas, tanto en IPv4 como en IPv6. El funcionamiento de multicast es muy sencillo, el host que quiere recibir tráfico manda un mensaje a su router y se suscribe al grupo multicast (IP dentro de un rango reservado), a partir de ahí el router ya sabe que tiene que enviar el tráfico multicast de ese grupo a ese host en particular. El protocolo multicast en el que nos vamos a centrar es MLD (Multicast Listener Discovery). MLD es una herramienta que utilizan los routers IPv6 para descubrir subscriptores multicast en un enlace directo, es el equivalente a IGMP en IPv4. Se usará la versión más reciente de este protocolo MLDv2. El objetivo final de este Trabajo Fin de Grado es evaluar estos mecanismos de envío de tráfico multicast (MLD), en un escenario real bajo un protocolo de movilidad basado en red (PMIPv6). Para desplegar este escenario se utilizará un prototipo con routers empleando la distribución OpenWRT.With the current boom of Internet and the rising use of mobile devices, the media content consumption has increased, including video streaming, video on demand and IPTV. Many of this services use Multicast. Multicast is a method of sending IP datagrams to a group of interested Receivers in a single transmission. To do multicast data transmissions are reserved a range of IP addresses, both in IPv4 and in IPv6. Multicast operation is simple, the host who wants to Receive Traffic sends a message to its router and it subscribes to the multicast group (IP's reserved range). Then the router knows how to send multicast Traffic for that group to that particular host. We are going to focus in the multicast protocol MLD (Multicast Listener Discovery). MLD is tool used by IPv6 routers to discover multicast listeners in a direct link, it is equivalent to IGMP in IPv4. We focus on the latest version of this protocol, MLDv2. The final objective of this Bachelor Thesis is to evaluate this multicast sending mechanisms (MLD), in a real scenario running a network-based mobility management protocol (PMIPv6). To deploy the scenario we will utilize a prototype with routers using a OpenWRT distribution.Ingeniería Telemátic
Copeland Rebecca - One of the best experts on this subject based on the ideXlab platform.
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Resolving ten MVNO issues with EPS architecture, VoLTE and advanced policy server
'Institute of Electrical and Electronics Engineers (IEEE)', 2011Co-Authors: Copeland Rebecca, Crespi NoelAbstract:International audienceThe numbers of MVNOs (Mobile Virtual Network Operator) are growing globally, but so do their operational and business issues. This paper identifies these issues and looks for remedies via the new 4G architecture and interfaces. The paper examines the "Full" MVNO model as a "Home" network in a pseudo roaming scenario (National Roaming), allowing MVNO to connect to multiple MNOs through the discovery and selection process, and to benefit from the access agnostic nature of EPS (Enhanced Packet System). Greater MVNO independence can resolve many of the MVNO's underlying issues, e.g. launching services and variable charging that are enabled by IMS Voice and non-Voice. Other persisting issues are solved by the MVNO defining user centric policies that are conveyed to the MNO transport network through new interfaces for the Policy & Charging Rules Function (PCRF). Particular issues can be resolved by integrating the User Data Repository (UDR) with policies and charging rules. MVNO also need to support the value chain via "Sponsored Data" from service/content providers and Receive Traffic Detection Function (TDF) reports on user context and behaviour. This paper argues that these features strengthen the Full MVNO position in the layered business model in EPS, and that the identified issues are substantially alleviated
