Jorge R. Gomez-Montalvo

A Multimedia Ontology Driven Architecture framework (MODA) for networked multimedia systems

Heterogeneous multimedia environments make difficult the automatic deployment and interoperability of networked multimedia systems. Diversity of languages, protocols, and hardware platforms lead to major incompatibility issues. Moreover, dynamic multimedia systems instantiation and configuration guided by user and community requirements and preferences are not easy to be performed in this context. This work introduces an ontology framework for automatic networked multimedia systems deployment and configuration driven by the requirements and preferences of the users. A case study illustrating how networked multimedia systems can be dynamically deployed is presented in order to demonstrate the advantages of using this framework.

Multimedia Ontology-Driven Architecture for Multimedia Systems

Diversity of standards, languages, protocols, and hardware components leads to important incompatibility issues when designing and developing multiplatform multimedia systems. Furthermore, user and community requirements and preferences should be taken into account when instantiating and configuring these kind of systems. This work introduces an ontology framework for distributed multimedia systems design and deployment driven by user requirements. Case studies illustrating how distributed multimedia systems can be dynamically deployed are presented in order to demonstrate the advantages of using this framework.

Towards user-centric configuration and deployment of multimedia services: A semantic framework

New communication service capabilities of mobile devices have boosted the apparition of ubiquitous multimedia scenarios where users could easily create ad hoc multimedia sessions by friendly providing their requirements and preferences. In order to dynamically create and deploy such ubiquitous multimedia systems, end-users require frameworks which allow them in a spontaneous manner to generate the required multimedia sessions. This work introduces an ontology based framework aimed at the configuration and deployment of multimedia services driven by user preferences. A case study is presented in order to illustrate the use of this framework in the context of extended home networks.

An Ontology-Based Framework for Autonomous QoS Management in Home Networks

Quality of Service (QoS) management in home networks becomes a complex function when dealing with dynamic evolution of user requirements and network services. Autonomous management of QoS asks for decision models able to incorporate this evolving nature of requirements and services. In this paper, we propose an extensible framework that integrates a semantic space for user requirements and preferences aimed at guiding an autonomous QoS decision model. The use of this framework is illustrated in the context of QoS management in home networks.

A Semantic Approach to User-Based QoS Provision for Multimedia Services in Home Networks

Quality of Service (QoS) provision in home networks based on end-user preferences or requirements is an important and complex task. Current mobile devices with new communication capabilities have boosted the apparition of multimedia scenarios where users could easily create ad hoc multimedia sessions by friendly providing their requirements and preferences like QoS preferences. In order to dynamically integrate end-users QoS preferences or requirements when using such multimedia systems, end-users require frameworks which allow them to generate the required multimedia sessions. This work introduces an ontology based framework aimed at integrating end-user QoS preferences and requirements for multimedia services. A case study is presented in order to illustrate the use of this framework in the context of extended home networks.

Towards a semantic-driven and scalable publish/subscribe framework

Heterogeneous networks, including personal, home and collaborative enterprise networks are aimed at interconnecting diverse communities of users. In the case of large communities of mobile, distributed and collaborating users sharing their multimedia content, scalable and semantic approaches are needed to facilitate the efficient publication and discovery of data. In this work, we propose an approach aimed at efficiently providing the required functionalities for dynamically managing the resources and the multimedia content of interconnected home networks, as well as providing the required community sharing capabilities. Our solution consists in combining the benefits of both ontologies and peer-to-peer approaches, by taking advantage of the semantic capabilities of ontologies at local domain level and the scalable P2P solutions at inter-domains level. Our proposed framework is founded on a new architecture based on peer-to-peer event-based communication system and using mainly a home box entity based on a global multimedia ontology. This domain ontology allows publishers and subscribers to use a common semantic space to characterise production and consumption of resources and services. Our approach can also be applied for similar large interconnected systems scenarios such as topic discovery with JNDI and service exchange with UDDI.

Towards a semantic and MPTCP-based Autonomic Transport protocol for mobile and multimedia applications

Mobile and multimedia applications are more and more used in the current Internet. For these applications, a set of Transport protocols are proposed aimed at aiding the end-to-end communication. However, to face the challenge of providing a sufficient Quality of Service (QoS) to the final users, a new generation of Transport protocols that takes into account dynamically and autonomously the evolvement of both applications QoS requirements and network context changes is needed. The goal of this paper is to provide contributions aimed at illustrating how the autonomic computing paradigm may be applied to a multi-path Transport protocol called Multipath TCP (MPTCP) in order to provide as much as possible QoS for mobile and multimedia applications. Several QoS-aware mechanisms are proposed and evaluated as well as an ontology-based semantic model for the dynamic discovery of MPTCP mechanisms is also presented.