| Evolution of the Internet Architecture for LoWPAN | | BIBA | Details | 1 | |
| Laurent Toutain; Nicolas Montavont; Alexander Pelov; Martin Heusse; Alejandro Lampropulos | |||
| This paper proposes an evolution of the Internet architecture where the
interconnection dogma can be weaker and allows some changes in the way packets
are processed and network is managed. We will show some of the limitations of
the current design of IPv6 especially regarding extension management and
propose an innovative approach where packet formats may transform depending on
the nature of the network. We will use LoWPANs as an example and show the
possible development of this paradigm.
The proposed approach of evolving the Internet architecture has been implemented in an WSN urban network and has been deployed in a real-world scenario, courtesy of the ANR project ARESA2. The remainder of the paper is organized as follows. Section 2 presents the currently proposed IETF architecture and protocols for LoWPAN, while in Section 3 we discuss its limitations and the necessary packet and address format modifications. Section 4 presents our new architecture for LoWPANs. | |||
| WiNo : une plateforme d'émulation et de prototypage rapide pour l'ingénierie des protocoles en réseaux de capteurs sans fil | | BIBA | Details | 2 | |
| Adrien van den Bossche; Thierry Val | |||
| L'ingénierie des protocoles implique souvent de nombreuses phases de tests pour valider un protocole nouvellement créé. Dans le domaine spécifique des réseaux de capteurs sans fil, la démocratisation récente du matériel a permis de nouveaux usages pour les concepteurs de protocoles. En effet, après les phases classiques de spécification et de simulation, il est désormais courant d'évaluer le protocole dans un contexte réel et concret, sur cible finale. Dans cette optique, des outils adaptés émergent, non seulement pour rendre cette tâche plus accessible, mais aussi pour en maîtriser le déploiement, afin de rendre les résultats plus exploitables. Dans cet article, après un bref tour d'horizon des solutions disponibles, la plateforme « WiNo » d'émulation et de prototypage rapide pour réseaux de capteurs est présentée, ainsi que plusieurs exemples représentatifs de résultats obtenus grâce à son usage. | |||
| Auto-configuration Proactive de la Couche MAC pour les Réseaux de Capteurs Sans Fil à Trafic Variable | | BIBA | Details | 3 | |
| Julien Beaudaux; Georgios Papadopoulos; Antoine Gallais; Thomas Noël | |||
| Many Wireless Sensor Networks deployments have to face bursty traffic, where packets are sent in a raw. For example, when a node is disconnected from the network or when the radio channel is unavailable for some time, nodes may have to store packets in the meantime. Then, when the sink is reachable again, it will have to send the stored packets, one directly after the other. This specific case is rarely addressed by Medium Access Control mechanisms. As this situation leads to long periods of channel occupancy, it may lead to increased delays and energy-consumption. In most deployment, the MAC layer configuration remains static (i.e. it does not vary over time) and homogeneous (i.e. identical for all nodes). Considering this, we here present BAT-MAC, a novel preamble-sampling MAC protocol specifically designed to address this issue through the introduction of heterogeneous nodes configuration in the network. BAT-MAC dynamically adapts MAC configuration depending on the actual and expected traffic load. This way, it allows nodes to deal with bursty traffic more quickly, and in an energy efficient manner. BAT-MAC can be used in combination with any preamble-sampling MAC protocol. In this paper, we evaluated it in association with X-MAC, and demonstrated that it can provide significant gains in terms of delays and energy consumption. | |||
| Visite appartement intelligent | | BIB | Details | 4 | |
| Ye-Qiong Song | |||
| Relations spatiales en Réalité Augmentée sur dispositifs mobiles | | BIBAK | Details | 5 | |
| Thomas Vincent; Sébastien Pelurson; Valentin Regazzoni; Takeshi Kurata; Laurence Nigay | |||
| Handheld devices processing power increases and they embed more and more
sensors. It is now possible on such devices to overlay the view of the physical
surrounding provided by the back-facing camera with computer graphics. This
technique has been coined as "Augmented Reality" and it is used in different
areas. Augmented Reality creates a mixed environment composed of the view of
the physical surrounding augmented with digital content displayed on the
handheld device's screen. In this context, this paper studies the spatial
relations involved while the user is interacting with this mixed environment.
We focus on two spatial relations: (1) between the object of interest in the
physical world and the handheld device, and (2) between the handheld device and
the user. We present some handheld Augmented Reality application examples that
make use of those spatial relations for interaction. Keywords: Augmented Reality, Handheld device interaction, Interaction techniques,
Spatial relations | |||
| Vers une détection automatique des applications malveillantes dans les environnements Android | | BIBAK | Details | 6 | |
| Eric Finickel; Abdelkader Lahmadi; Olivier Festor | |||
| In this paper, we present the state of the art regarding attacks and threads
in Android environment and their associated detection methods. Most of the
existing approaches rely on information obtained using the instrumentation or
the reverse-engineering of the bytecode of the analyzed applications. We
present therefore a novel approach relying on the analysis of system and
applications logs generated by the Android platform. Our developed analysis
tool allows us to establish fingerprints of Android applications associating
their execution structure and dynamics. Keywords: Android, Applications, Logs, Analyse, Sécurité | |||
| Techniques d'interaction sur tablettes dans le contexte de géométrie 3D | | BIBAK | Details | 7 | |
| David Bertolo | |||
| Tablets with touch-screens, multi-touch interfaces and various sensors are
becoming increasingly common. More and more schools are testing them with their
pupils in the hope of bringing pedagogic benefits. Thanks to this new type of
devices, new sets of interactions can be thought of. Yet, user reception has to
be tested before any pedagogic benefits can be evaluated. In this paper, a set
of interactions using multi-touch and sensors to manage rotation of solids is
presented. It was largely accepted by a test group of learners aged 9 to 15. Keywords: 3D user interface; Interactions; tablets touchscreen; multi-touch; 3DOF;
rotations; child-computer interaction | |||
| Contrats de contexte pour la gestion de contexte répartie | | BIBAK | Details | 8 | |
| Nadia Masmoudi; Denis Conan | |||
| In ambient computing environments, applications need to monitor their
execution context and react to changes in their environment. The distribution
of context data poses great challenges to researchers. In this paper, we focus
in the modeling of the distribution of context data.
A model of the distribution of context data allows the expression of context constraints and the delivery of unambiguous context information between providers and consumers, and the context management service, and between the various components of the context management service. We argue that the management of context data distribution can be achieved by establishing context contracts. For this purpose, we propose a model of context contract and use Distributed Events Based Systems (DEBS) as an appropriate interaction model for building asynchronous communication between providers and consumers of context information. Keywords: Middleware, context-awareness, contract, distributed event-based systems,
complex event processing | |||
| QoCIM : un méta-modèle de qualité de contexte | | BIBAK | Details | 9 | |
| Pierrick Marie; Thierry Desprats; Sophie Chabridon; Michelle Sibilla | |||
| In the last decade, many works aimed to propose their own quality of context
(QoC) criteria list. This article relates a comparative study of these
successive propositions. The result is that no consensus has been reached about
the semantic and the completeness of QoC criteria. Faced with this situation,
the QoCIM meta-model is proposed as a generic, computable and expressive
solution to handle and to exploit any QoC criterion within context managers and
context-sensitive applications. For validation purposes, QoCIM is successfully
applied for modelling a set of simple and composite QoC criteria. Keywords: quality of context, quality criterion, context management, meta-modeling,
information model | |||
| GRAPP&S, une Architecture Multi-Échelle pour les Données et le Services | | BIBA | Details | 10 | |
| Thierno Ahmadou Diallo; Samba N'Diaye; Olivier Flauzac; Luiz Angelo Steffenel | |||
| In this paper we introduce GRAPP&S (Grid APPlication & Services), a multi-scale framework for an unified storage and indexing of both data and services. Indeed, GRAPP&S was designed to support different data formats such as files, stream or database queries, but also to support the access to distant services (web services, cloud services or HPC computing services, for example). GRAPP&S coordinates an hierarchical routing architecture that allows data indexing and access, thanks to a multi-scale network of local-area communities. Transparent access is provided by a network of specialized proxies, which handle most aspects related to data location, request handling, data preprocessing/summary and also data consistence. Furthermore, GRAPP&S infrastructure can be easily enhanced to ensure security and confidentiality inside a GRAPP&S community and among different communities. | |||
| Ubiquitous Widgets | | BIBAK | Details | 11 | |
| Pierre Dibon | |||
| Modern mobile devices spreading introduce a new way of using and designing
software applications. These pervasive systems are now part of our lives. More
and more connected objects provide us more and more software capabilities. In
this environment we have to rethink the way we traditionally consider our
interactions with this software. These interactions are now potentially spread
over multiple devices with different interacting modalities. We propose, in
this paper, a software container component based architecture to design such
interactions and a software platform to manage their dynamic life-cycle. Keywords: ubiquitous widgets; interactors; human-computer interactions; pervasive
applications; context-aware applications; multimodal interactions | |||
| Energy Evaluations for Wireless IPv6 Sensor Nodes | | BIBAK | Details | 12 | |
| Bernard Tourancheau; Cedric Chauvenet; Denis Genon-Catalot | |||
| Typical Wireless Sensor Networks (WSN) include some energy autonomous nodes
and main powered router nodes. To meet a reasonable lifetime, i.e. years, the
autonomous devices have to encompass strong energy constraints. Our target
network architecture consists in such wireless autonomous nodes connected to a
backbone based on PLC nodes. Our given building automation application scenario
runs a 10 minutes periodic probes sampling which reports a data frame over the
Internet using IPv6. For this purpose, our WSN nodes use open RPL/ContikiOS
softwares and typical off-the-shelf electronic components. In order to optimize
the node energy consumption we propose a systemic analysis that includes all
the software layers and hardware components. The energy distribution among the
different components and the critical software parameters are weighted against
the global energy consumption. Thanks to measurements and technical data, we
propose a simple model that allows to identify pitfalls and determine optimized
solutions. Following our established guidelines, we believe our future WSN
monitoring platform will achieve more than 10 years lifetime with the target
scenario. Keywords: WSN; Energy optimization; Lifetime; Performance; Measurement | |||
| Systèmes d'Information Pervasifs et Espaces de Services : Définition d'un cadre conceptuel | | BIBAK | Details | 13 | |
| Salma Najar; Manuele Kirsch Pinheiro; Bénédicte Le Grand; Carine Souveyet | |||
| In this paper, we propose a conceptual framework, called Service Space, for
specifying Pervasive Information Systems (PIS) and their functionalities. These
systems have to combine the dynamism and the heterogeneity of the pervasive
environment to which they belong with the business constraints of Information
Systems (IS). We present the notion of Service Space as a conceptual framework
intending to represent PIS elements in a transparent way. It is a conceptual
tool allowing PIS designers to manage heterogeneity from pervasive environments
in the specific case of Information Systems. Keywords: Pervasive Information Systems, Ubiquitous computing, Information Systems,
Service engineering | |||
| Interopérabilité des réseaux de capteurs hétérogènes dans un appartement intelligent | | BIBA | Details | 14 | |
| Moutie Chehaider; Kévin Roussel; Ye-Qiong Song | |||
| Efficient use of heterogeneous sensors networks needs a huge development effort (hardware and software gateways), thus slowing down application developers. This article presents a new gateway architecture ensuring interoperability and facilitating transparent access to the data offered by various types of sensors, applied to the domain of smart housing for supporting the home care of the elderly/impaired people. More especially, we focus on the access to wireless sensor networks using web services in the case of devices devoid of the CoAP/6LoWPAN network stack. This gateway also provides an homogeneous interface for accessing the data processed by these different sensors, thanks to the integration of a middleware layer based on ROS (Robot Operating System). | |||
| Visite appartement intelligent | | BIB | Details | 15 | |
| Ye-Qiong Song | |||
| Analyse des comportements des applications Android par les cartes auto-organisatrices (SOM) | | BIB | Details | 16 | |
| Abdelkader Lahmadi | |||
| Une plateforme d'expérimentation pour les systèmes d'interaction destinés aux personnes en situations de handicap | | BIBAK | Details | 17 | |
| Adrien van den Bossche; Frédéric Vella | |||
| Les techniques d'interaction destinées à favoriser le retour
à domicile de personnes fragilisées et en perte d'autonomie sont
en plein essor. Cependant, si les besoins sont forts et les propositions
nombreuses, il convient de mettre à disposition des systèmes
ouverts permettant leur évaluation en situation réelle. En
fonction des capacités cognitives, motrices et perceptives de la
personne les utilisant, les dispositifs peuvent être plus ou moins
efficaces. Dans cet article, les auteurs proposent une plateforme
d'expérimentation permettant le développement rapide puis la mise
à l'épreuve de tels dispositifs, dans un environnement de type
« living lab ». La plateforme est constituée de divers
systèmes d'interaction (tactile, reconnaissance et synthèse
vocale, reconnaissance de formes), de dispositifs de traitement et des
systèmes communicants (bus domotique, réseau local, etc.). Le
dispositif proposé se veut le plus ouvert possible, fortement
évolutif et simple d'usage, pour permettre le développement
rapide de projets de recherche dans cette thématique. Keywords: Interaction homme-machine, réseaux, maison intelligente, situations
de handicap | |||
| Peinture numérique 3D bi-manuelle: interaction pour la réalité augmentée en spectacle vivant | | BIBAK | Details | 18 | |
| Alexis Clay; Jean-Christophe Lombardo; Julien Conan; Nadine Couture | |||
| The rise of gestural interaction led artists to produce shows, or
installations based on this paradigm. We present the first stages of the
"Sculpture numérique" Virtual Sculpture) project. This project was born
from a collaboration with dancers. Its goal is to propose bi-manual
interactions in a large augmented space: we aim at giving dancers the
possibility to generate and manipulate virtual elements on stage using their
hands. We built two prototypes; one in a CAVE environment, and one intended for
the stage. An initial user study was conducted to obtain feedbacks both from
laypersons and professional dancers. Keywords: Virtual Sculpture; CAVE; surface generation; digital arts; virtual reality | |||
| CrowdOut: un service de crowdsourcing pour la sécurité routière dans les villes numériques | | BIBAK | Details | 19 | |
| Elian Aubry; Thomas Silverston; Abdelkader Lahmadi; Olivier Festor | |||
| Nowadays cities invest more in their services, and particularly digital
ones, to improve their resident's quality of life and attract more people.
Thus, new crowdsourcing services appear and they are based on contributions
made by mobile users. For example, the respect of the traffic code is essential
for ensure citizens' security and welfare in their city. With this in mind, we
proposed CrowdOut, a new crowdsourcing mobile service for road security in
cities. CrowdOut allows users to report traffic offences they witness in real
time and to map them on a city plan. CrowdOut service is implemented, and
preliminary tests and demonstrations have been performed in the urban
environment of the Grand Nancy. This service allows users to appropriate their
urban environment with an active participation regarding the collectivity. This
service also represents a tool for administrator to help for decisions and
improve their policy of urbanization, or check the impact of their policy
decision in the city environment. Keywords: crowdsourcing, mobilité, service, sécurité
routière, Android | |||