Intégration des services à la plateforme pour démonstrateurs

Livrable L5.2, Sous-Projet 5 (SP 5) : ExpérimentationsCe document vise la définition des scenarii d'usage dans le projet SARAH, comprenant la manipulation de flux multimédias sur les réseaux ad hoc ainsi que la localisation de l'utilisateur par rapport aux services et utilisateurs de voisinage et à distance. Les scenarii décrivent principalement les expérimentations et démonstrateurs dans le cadre du SP5. Certains scenarii décrits dans ce document peuvent servir de support à la validation de composants issus des labos des partenaires (simulation ou petits testbeds) dans les différents sous-projets. De plus, certains scénarii peuvent ne pas être réutilisés dans les SPs, mais présentent un intérêt pour de futurs déploiements de services sur réseaux ad hoc sans fil

An UPnP-based context-aware framework for ubiquitous mesh home networks

International audienceWireless mesh networks are an appropriate solution for broadband home networks in order to establish a ubiquitous environment. One of the main challenges in ubiquitous networks is context-awareness and personalized service discovery. Many service discovery protocols have been proposed in the literature. The most significant is the Universal Plug and Play (UPnP) technology, based on the Simple Service Discovery Protocol (SSDP) and targeted for home network environment. However, the UPnP technology has some drawbacks and particularly does not consider user context. In this paper we present a framework that provides an extension for the UPnP architecture and employs context-aware concepts to achieve service discovery continuity in evolving environments where devices may move inside the home and change their point of attachment within the wireless mesh network. This extension is carefully designed for wireless mesh controllers, and is compatible with the existing UPnP framework. It keeps the process of service discovery as simple and automatic as possible

An energy-aware autonomic architecture for localization in ubiquitous networks

International audienceOne of the main challenges in ubiquitous networks is localization. Many positioning methods have been proposed in the literature since this data is critical for numerous protocols and services. Choosing the right localization algorithm for a specific environment is a hard task. However, it is even more complex when several radio access technologies are available in evolving environments. This paper presents a framework based on autonomic networking concepts to achieve localization in ubiquitous networks. This approach uses ambient intelligence to provide flexibility, accuracy, and energy savings

Etude des protocoles de découverte de service dans le cadre des réseaux adhoc

This document present the state of the art regarding Service Discovery protocols in general in a first part. The second part show how they can fit within the frame of adhoc network