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A Multimedia IMS-enabled Residential Service Gateway
Get PDFInternet access has been, until now, the main driver for the generalization of broadband connections in the
residential market. Simple IP based services like email and web browsing were, during many years, the
typical services provided to residential customers. Today the telecommunications market is changing and
operators are looking for ways to provide, through those same IP broadband connections, value added
services. These will, in one hand, increase their revenues and on the other hand, provide to the customer a
wider range of services until now inaccessible. Triple Play is already a reality, although, the convergence
between mobile and fixed networks is bringing to the home a new range of IP Multimedia Subsystem (IMS)
based services, which used to be exclusive of the mobile world. Although, to successfully achieve the
delivery of these new services, the interface between residential and operator’s networks must be
meticulously defined and implemented, by what is usually called the residential gateway (RGW). This paper
focuses on emerging residential services and the implications that these impose on the RGW. The
coexistence between IMS based services and non-IMS based services are also approached on this paper,
with a special emphasis on RGW Quality of Service (QoS) issues.TRUEpu
Networked Media of the Future
Get PDFThis vision of pervasive personalised media services without a central control requires research in several domains. In terms of content and services, there is a need to enable non-professional production of content, creating services that reflect societal needs and facilitate the emergence of multi-party, multi-play services. In terms of access, people require to retrieve their multimedia assets and use them on their devices while being mobile. In terms of collaboration, technologies need to leverage the increasing computing power, data capacity and connectivity of surrounding devices, and exploit them in a distributed fashion. It will require as well to enhance virtual reality and conferencing technologies to enable a more natural and effective team collaboration, and also empower virtual communities to create content and services. Consequently, research need to focus on creating an environment, where all of the human senses are engaged (but not overwhelmed) and where communication via technological means preserves (and maybe augment) the richness and subtle characteristics of human-to-human communications.TRUEpu
IPv4 Address Space: 2.46 Billion Down, 1.25 Billion to Go
No full textA Quarterly Technical Publication for Internet and Intranet ProfessionalsIn September 2005, The Internet Protocol Journal published an
article about the IPv4 address space consumption[1]. At that time,projections done by Geoff Huston and Tony Hain varied widely,because the number of /8 address blocks in use had gone up sharply in early 2005. So what has happened since then, and what can we expect for the not-too-distant future?TRUEpu
Integration of a QoS aware end user network within the TISPAN NGN solutions
Get PDFThe development of specifications for Next Generation
Networks has introduced a new network paradigm that has
features and capabilities to ensure the provisioning of new
value-added multimedia services over the broadband access technologies that are currently being deployed in the
market. In this respect, the TISPAN group from ETSI is
working in the specification of a Next Generation Network,
mainly based on IMS as the service signalling architecture.
Nevertheless, the first release of the TISPAN NGN does not
consider the QoS provisioning mechanisms in the end user
environment. QoS support will necessarily require to extend the QoS scope to the client premises, in order to provide a real end-to-end QoS. In this scenario, the figure of
a Residential Gateway in the user network plays a crucial
role. In this paper, an architecture is presented to allow the
automatic configuration of the QoS parameters in a Residential Gateway directly connected to a TISPAN compliant
Next Generation Network. This architecture should support
the processing of the SIP signalling flows exchanged between the end user environment and the Core IMS in the
NGN, deriving relevant information from the SDP payloads
and accordingly configuring the QoS parameters in the user
network environment.TRUEpu
VARON: Vehicular Ad hoc Route Optimisation for NEMO
Get PDFIn this paper, we analyse the provision of enhanced communications between vehicles. It is expected that vehicles will have several communication devices, and that a specialised node will provide external connectivity to these devices, i.e., the devices in the vehicle form a Mobile Network. We propose the use of Network Mobility communication solutions for providing access from the vehicles to an infrastructured network (e.g., the Internet) or for communication with other vehicles. The main contribution of this paper consists in a route optimisation solution for mobile networks – based on the use of mixed ad hoc and infrastructure communications – that enables intervehicle communications to be improved in terms of bandwidth and delay. The mechanism provides the same level of security than today’s IPv4 Internet, by means of reusing Mobile IPv6 security concepts, and the use of public key cryptography and Cryptographically Generated Addresses. The proposed solution is characterised and evaluated through extensive simulation, showing that it provides an efficient optimisation in vehicular communications.TRUEpu
Propuesta de pasarela residencial para una red futura de acceso multi-servicio
Get PDFResidential Gateways are key elements in order to be able to connect future advanced home environment with next generation networks such as the ones being defined by TISPAN NGN specification. A broadband multi-service and multi-provider enabled Residential Gateway that is capable of supporting an end to end QoS environment (from the end user terminal to the provider domain) is presented in this article. The prototype that is described here shows the different challenges and functionalities considered in MUSE European project mainly focusing on the quality of service and multi-provider multi-service management features.
The last part of the article presents the capabilities of the prototype as Residential Service Gateway, and it is possible to implement new valuable services in the gateway itself to enable new functionalities in the home network.TRUEpu
An Incremental Approach to IPV6 Multihoming
Get PDFThe availability of two or more connectivity providers (configuration known as multihoming) allows improvements in failure tolerance and enables traffic engineering capabilities. Current IPv4 multihoming solutions suffer from scalability limitations. In this article we present a
solution that allow IPv6 networks to benefit from multihoming, taking advantage from the fact that each provider delegates its own set of addresses. The proposed solution consists in multiple mechanisms that provide different benefits to the multihomed site. More precisely, the solution includes a mechanism for the provision of ingress filtering compatibility, a mechanism for establishing new communications after an outage, a set of tools for traffic engineering and a protocol for preserving established communications through outages. In addition we
propose a roadmap for the incremental deployment of the set of mechanisms included in the solution based on the trade-off between deployment effort required by each mechanism and the benefits obtained by the involved party.TRUEpu
Scalable Support for Globally Moving Networks
Get PDFThis paper proposes a scalable solution for the
support for globally moving networks. It is basically
oriented to airborne mobile networks built in
commercial aircrafts in order to provide Internet
access to the passengers. As opposed to currently used
solutions, the proposed solution has no impact in the
global routing tables while it provides optimized paths
between the mobile network and the rest of the
Internet. The proposed solution is an extension to the
IETF standard network mobility support protocol and
relies on the communication through multiple
geographically distributed Home Agents in order to
avoid panoramic routing imposed by single anchor
points as in the case of a single Home Agent. The
proposed solution includes a mechanism to select the
best Home Agent to route new communications
through.TRUEpu
Adaptive Quality of Service Management for Next Generation Residential Gateways
Get PDFThe TISPAN workgroup inside ETSI is currently working on
accommodating the IMS (IP Multimedia Subsystem) architecture, which has been created for the mobile world, to the fixed scenario where there is a new important element to be taken into account: the Residential Gateway (RGW). This element is typically considered as a customer device where providers do not usually have anything to configure. However, in order to achieve real end-to-end Quality of Service (QoS) this cannot be true anymore. This paper focuses on the way that a RGW is capable of configuring itself (an interface with the providers is also available), regarding Quality of Service parameters, into a Next Generation Network (NGN) scenario. The proposed RGW architecture is also flexible enough so as to adapt the QoS management mechanism to different possible scenarios, e.g. configured by the provider, by the customer or even autoconfigured by the RGW itself. A specific scenario, where a RGW is deployed in the TISPAN NGN architecture, will be explained and validated to proof the concept of the RGW architecture.TRUEpu