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International audience; We present here the Franco-African consortium "AfriConnect" concerning the Internet of Things (IoT) and established by 3 French-speaking universities, located in France, Morocco and Senegal. The different objectives of this project, which are the training of trainers, students, alumni and professionals; technical support and expertise for student-entrepreneurs and companies; and the promotion of IoT to a public of high school students, are based on two educational structures that each partner must have: an "IoT Lab" for the study, design and manufacture of connected objects and a "technology platform" for their deployment and testing in the context of specific applications. The latter were chosen to show the importance of IoT in two key areas linked to sustainable development and food, namely agriculture (market gardening) and renewable energy.; Nous présentons ici le consortium franco-africain « AfriConnect » concernant l'Internet des Objets (IdO) et établi par 3 universités francophones, situées en France, au Maroc et au Sénégal. Les différents objectifs de ce projet qui sont la formation de formateurs, d'étudiants, d'alumni et de professionnels ; l'appui technique et d'expertise pour les étudiants-entrepreneurs et pour les entreprises ; et la promotion de l'IdO auprès d'un public de lycéens, s'appuient sur deux structures pédagogiques que doit posséder chaque partenaire : un « IdO Lab » pour l'étude, la conception et la fabrication des objets connectés et une « plateforme technologique » pour leur déploiement et test dans le cadre d'applications bien précises. Ces dernières ont été choisies pour montrer l'importance de l'IdO dans deux domaines clés et liés au développement durable et alimentaire que sont l'agriculture (maraichère) et les énergies renouvelables.

La nouvelle tendance des utilisateurs des technologies mobiles et les exigences en termes de perfor-mances sollicités par les utilisateurs ont amené plusieurs groupes industriels et laboratoires de recherches à s'engagerdans la conception de nouveaux équipements basées sur la technologie dite cinquième génération de réseau mobile(5G), ils débattent des solutions techniques à adopter pour la mise en œuvre de nouvelles solutions industriellesbasées sur l'Internet Of Thing (IOT) ou la connectivité des objets à l'aide d'internet. La cinquième génération deréseau mobile (5G) est une nouvelle génération des standards de téléphonie mobile qui s'avère une technologie pro-metteuse et qui pourra changer la tendance du monde de communication qui est de forte exigence tel que celui desobjets connectés. La 5G représente un des plus ambitieux projets de réseau de communication sans fil jamais réaliséqui devra répondre aux attentes d’un marché de masse. Ce document va présenter le rôle crucial de la 5G dansl'apparition de nouveaux objets connectés ce qui mettra à l’honneur de multiples systèmes de communication inter-connectés. Notre approche est basée sur le principe que la 5G et l'IOT sont indispensable puisque l'un n'agit pas sansl'autre.

Un RADAR de poursuite mesure les coordonnées d'une cible et fournit des données qui peuvent être utilisées pour déterminer la trajectoire de la cible et prédire sa position future [1]. Par ailleurs, ce système présente des limitations dont la principale est la forme du lobe d'antenne qui n'est pas adaptée à la recherche d'une cible dans un grand domaine, ce qui limite cette recherche à un cône d'ouverture faible que la cible à poursuivre doit traverser pour pouvoir s'identifier. Pour lutter contre ces problèmes une solution très efficace a vu le jour dans les dernières décennies qui repose sur le fait de contrôler intelligemment la transmission des données dans le domaine spatial. Plus précisément, utiliser des antennes dont le diagramme de rayonnement est contrôlé afin d'avoir le maximum du gain dans la direction du lobe principal (la cible) et réduire l'effet des multi trajets. C'est dans ce contexte que les techniques d'antennes intelligentes vont être utilisées. Cet article présente une vue d'ensemble sur les antennes intelligentes, et en particulier, les antennes adaptatives qui se veut une solution pour pallier aux limitations de l'ancien système Radar de poursuite.

RF energy scavenging, commonly referred to as RF energy harvesting, is the capability of collecting ambient RF energy from antennas to supply power to electronic devices. The rectifier circuit is the key component of wireless energy harvesting system. Therefore, the development of efficient and compact rectifier circuit has become recently a vital research topic. This paper presents a state of the art and review of the recent designs of microstrip recti- fier circuit used for RF energy harvesting applications at 2.45 GHz and 5.8GHz.

The three industrial revolutions of the past were all started off by many technical innovations: the using of water and steam powered mechanical manufacturing at the end of the 18th century, the division of labor at the beginning of the 20th century and introduction of programmable logic controllers (PLC) for automation purposes in manufacturing in the 1970s. According to experts from industry and research, the upcoming industrial revolution will be triggered by the Internet, which allows communication between humans as well as machines in Cyber-Physical-Systems (CPS) throughout large networks.

One of the most prevalent challenges of developing the future heterogeneous multicore systems is energy efficiency. Therefore, apart from performance, this paper proposes a high performance energy efficient analytical model for the combined heterogeneous parallel multicore system that is likely to be applied in big data applications. This model is extended by the traditional computer-centric model that considers the data preparation overhead that could not be neglected in the heterogeneous multicore processor system. This evaluation clearly demonstrates that the high levels of parallelism that have been gained from computation and data preparations result in high levels of energy efficiency. Enhancing the performance and energy efficiency of data preparation is a likely approach that may affect the consumption of power. Therefore, when developing the modern heterogeneous processor system, more informed tradeoffs that are within the energy budget limit should be considered.

Commanding some part of mobile robots requires real time capability, especially for industrial need and applications where predicted behavior is paramount. Many programming language can be used to develop robot application, but only few of them can satisfy real time capability. C and C are the most used when addressing this problem. Our study will focus on major problem that must be overmastered to be able to develop a real time application using interpreted language. Various strategies for developing on top of a real time operating system (RTOS) are explored. The patterns focus on the use case of Python development on Linux-based RTOS’s (such as RT_PREEMPT), but the general concepts are applicable to other platforms. This contribution is related to our study for middleware for mobile robots in smart environment [1], and will be a first step to meet the criterion “Real Time Capability” of the middleware and will be an answer in which language we can develop the middleware to met this criterion.

International audience; Cloud computing is a new concept that was developed quite a lot these recent years. The number of organizations and companies adopting the cloud solutions is increasing because of many advantages found in its use (cut in setup and operating costs, scalability, flexibility….). However, this new paradigm faces some concerns that slow down its evolution and cause less infatuation from the users. The main issue here is undoubtedly the lack of security and mainly how outsourced sensible data within a cloud server can be protected? A number of solutions are being examined in order to strengthen the used models (authentication, data encryption and fragmentation before storing, Identity Access Management…), Data owners, users and Cloud Service providers are often involved. In this paper, we propose a new approach in which the provider does not participate on any level in the access management, only the owner can setup, update and verify access rights with the aim of minimizing leak risks.

International audience; A new paradigm in information technology has emerged this last years and continues to grow. Cloud computing is quite a new concept that has potential advantages; computing capacity provided as needed, much lower cost than in-house infrastructure, better reliability depending on the S ervice Level Agreement (S LA)… However, some drawbacks, mainly data security and access control concerns, remain a real setback to a wider utilization of this technology. In fact, storing sensitive data in a remote server owned by an external entity (the cloud provider) could lead to substantial risks. A malicious user or operator can identify and exploit the vulnerabilities of this system. Numerous works are being done in order to reinforce the cloud capacities in term of protecting data and managing access control using cryptography, data fragmentation, access control policies... In this paper, we introduce a new approach in which we exclude the cloud provider from any involvement in the access management with the aim of minimizing the leaks. We developed and tested programs based on a capability-list and using both symmetric and asymmetric cryptography