Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2009.1.1 | Award Amount: 7.45M | Year: 2010
The availability of position information plays an increasing role in wireless communications networks already today and will be an integral part of future systems. They inherently can offer the ability for stand-alone positioning especially in situations where conventional satellite based positioning systems such as GPS fail (e.g., indoor). In this framework, positioning information is an important enabler either for location and context-aware services or even to improve the communications system itself.The WHERE2 project is a successor of the WHERE project and addresses the combination of positioning and communications in order to exploit synergies and to enhance the efficiency of future wireless communications systems. The key objective of WHERE2 is to assess the fundamental synergies between the two worlds of heterogeneous cooperative positioning and communications in the real world under realistic constraints. The estimation of the position of mobile terminals (MTs) is the main goal in WHERE2. The positioning algorithms combine measurements from heterogeneous infrastructure and complement them by cooperative measurements between MTs, additional information from inertial sensors, and context information. Based on the performance of the geo-aided positioning strategies (in the sense of accuracy, complexity, overhead of signalling, reliability of the provided information, etc.) the impact on coordinated, cooperative, and cognitive networks is assessed. This is done under realistic scenarios and system parameters following on-going standardization processes. A joint and integrated demonstration using multiple hardware platforms provides a verification of the performance of dedicated cooperative algorithms.All the tasks in WHERE2 are covered by different work packages, which are in close interaction to ensure an integral research of cooperative positioning and communications.
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2007.1.1 | Award Amount: 5.55M | Year: 2008
To increase ubiquitous and mobile network access and data rates, scientific and technological development is more and more focussing on the integration of radio access networks (RANs). For an efficient usage of RANs, knowledge of the position of mobile terminals (MTs) is valuable information in order to allocate resources or predict the allocation within a heterogeneous RAN infrastructure.\nThe main objective of WHERE is to combine wireless communications and navigation for the benefit of the ubiquitous access for a future mobile radio system. The impact will be manifold, such as real time localization knowledge in B3G/4G systems that allow them to increase efficiency. Satellite navigation systems will be supplemented with techniques that improve accuracy and availability of position information.\nThe WHERE project addresses the combination of positioning and communication in order to exploit synergies and to improve the efficiency of future wireless communication systems.\nThus, the estimation of the position of MTs based on different RANs is the main goal in WHERE. Positioning algorithms and algorithms for combining several positioning measurements allow to estimate the position of MTs. Appropriate definitions of scenarios and system parameters together with channel propagation measurements and derived models will allow to assess the performance of RAN based positioning. Based on the performance of RAN positioning, location based strategies and protocols will be developed in order to optimise as well as to cross-optimise different OSI layers of communication systems and RAT selection policies. Performance assessment of the algorithms is provided by theoretical studies and simulations. Hardware signal processing will provide a verification of the performance of dedicated algorithms under realistic conditions. \nAll the tasks are covered by different work packages, which are in close interaction to ensure an integral research of positioning and communications.
Agency: European Commission | Branch: FP7 | Program: CP-IP | Phase: SST-2007-1.1-04 | Award Amount: 21.92M | Year: 2009
The electric ship concept offers many benefits; among other aspects if offers flexibility of control and effectiveness of power transmission. But predominantly it enables higher energy conversion efficiency by ensuring that prime movers are effectively loaded at all times and across all operating conditions. This dominating advantage cannot be matched by mechanical transmission systems because gearboxes offer little chance of integrating a high number of prime movers in the restricted space of a ship whereas this integration is straight forward when managed electrically. Thus the electric ship concept offers reduced emissions through improved efficiency of engine operation but critically it offers significant reduced emissions during the critical phase of entry to littoral water when with speed generally reduced engines in a mechanical systems become very lightly loaded. It is proposed to enhance the electric ship concept so it suits a wider range of vessels than currently. The principal barrier to adoption of the electric ship concept in merchant ships is the size of the equipment. However if size reductions can be achieved then adopting the electric ship concept in a wider range of merchant ships will, as described above, reduce emissions and improve the impact on global warming. Overall this impact will be significant given the current and anticipated levels of global trade and the proportion to be moved by sea transport. This challenging ambition, to enable the adoption of the electric ship concept in a wider range of merchant ships, will demand the development of new technologies across all of marine electrical engineering: 1. High Temperature Superconductivity (HTS): This is a technology that allows smaller principal electrical components and an increase in efficiency. 2. Wireless monitoring: This provides simpler internal control communication and enables the adoption of more advanced control regimes (as offered by the electrification of propulsion). 3. Harbour Shore Electrical Supplies: Running lightly loaded generators in harbour - as is commonly the practice among merchant ship operators - threatens the environment in a sensitive zone. The lack of any propulsion load prevents loading the generators more effectively. The answer is to supply the ship with electricity from shore connections. This does not need technological innovation but the widespread adoption of shore supplies demands standardisation among connectors and mode of electrical supply that has yet to be investigated. 4. Electrical actuation: This is a technology which aims to replace mechanically actuated auxiliaries by using direct electrical actuators and reduces size, cost, maintenance and improves efficiency The benefits of these proposed innovations will be tested by developing designs for specific ship types: multi-purpose, cruise and container. The integration process will be composed of 6 steps: 1 Ship mission 2 Energy consumers 3 Draft design 4 Performance simulations 5 Final design 6 Environmental impact. To reduce costs only the design for the multi-purpose ship will be taken through all the six steps. The remaining 2 ship types will only be taken through steps 1 to 3. Finally, the innovative HTSC technology will be demonstrated in a land demonstrator, scaled as much as possible to reduce costs, while retaining relevance of the demonstration to full scale implementation. This demonstrator will include: the propulsion system, including an HTSC propulsion motor and its power converter, a DC distribution system with innovative protection and an HTSC segment, and various auxiliary loads.
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2011.1.1 | Award Amount: 10.50M | Year: 2012
The LEXNET project addresses key factors of human exposure to electromagnetic fields(EMF) induced by wireless telecommunication networks and low exposuretechnologies. The wireless communication systems that are nowadays intensively usedhave induced fears to the general population about possible health impact. To date noadverse health effect has been established but recently the International Agency forResearch on Cancer has classified radio frequency electromagnetic fields as possiblycarcinogenic to humans. Such context may curb the general public from using innovativewireless systems. The goal of the LEXNET project is to investigate technologies andarchitectures to reduce the total human exposure without compromising the usersperceived quality in the frequency bands used for cellular and wireless local areanetworks (700 MHz to 6 GHz). EMF exposure is often assessed with access points anddevices considered separately. The real exposure induced by a network requires assessingthe averaged exposure encountered during human activities (working, travelling, etc.) andmust consider jointly the up- and downlinks of different systems. The project will definea suitable index of exposure (Iexp), which will consider exposure as a composition ofsituations encountered in various scenarios (e.g. percentages at home, travelling, etc).The acceptability of such index will be discussed with stakeholders. To reduce the Iexpof existing and future networks, the LEXNET project will analyse different options (e.g.radio components, interference management, power control, cell discontinuoustransmission, network selection and network nodes reconfiguration). The findings will bedemonstrated through a deployment in a smart city and validation platforms for proof ofconcept. The project will contribute to scientific knowledge and initiate a specificsymposium to discuss with stakeholders such as national authorities in charge of theseaspects (e.g. CEPT, ANFR and OfCom).
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2007.1.1 | Award Amount: 3.88M | Year: 2008
Ultra-Wide Band (UWB) is a wireless technology which exhibits unique features such as spectrum coexistence with other wireless services, RF front-end simplicity (enabling potential low cost terminals), good radio wave propagation (robustness against multi-path fading, material penetration) and high bitrate. \nCurrent UWB implementations target short-range ultra-high bitrate point-to-point wireless communication. UCELLS project will develop the required technology to enable the cellular operation of UWB transceivers. This cellular operation enables the seamless provision of UWB communication along a medium range user area, e.g. a whole office or home.\nCellular operation of UWB transceivers requires the spectral coexistence of UWB wireless communications with other wireless licensed services operating in the same band. Strong concerns exist nowadays regarding this coexistence. These concerns are reflected in the strict maximum radiated power imposed by the Spectrum Regulation Agencies (e.g. FCC and ETSI) in current UWB regulation to avoid UWB-induced interferences.\nThe cellular UWB technology in UCELLS guarantee that regulated radiation limits are meet in a given coverage area, despite a large number of UWB transmitters are in operation and/or the transmission limits are locally exceeded. In UCELLS radiated power limits could be locally relaxed in some frequency sub-bands, which is reflected it larger UWB range, higher bitrate and larger user capacity.\nUCELLS monitors spectral radiation limits at the cellular coverage area boundary by a real-time spectrum monitor. This system with unique features (large bandwidth, high dynamic range and good spectral resolution) is implemented using a photonic analogue-to-digital converter (Ph-ADC). The associated spectral analysis algorithms to optimise both the system performance and an efficient spectrum utilisation of cellular UWB communication are also developed in UCELLS.
Agency: European Commission | Branch: FP7 | Program: CP | Phase: ICT-2009.1.1 | Award Amount: 3.45M | Year: 2010
Currently, femtocells and macrocells are seen as isolated networks, competing for the resources available in the common spectrum band, at the cost of injecting interference to the whole system. FREEDOM project will face key technical and industrial concerns about the foreseen mid-term massive deployment of femtocells by adopting a new approach based on cooperative/coordination paradigms, enabled by the limited ISP backhaul link. The project will not disregard the approach of isolated networks because it is met when there is not enough backhaul link connecting the femtocells and macrocell. In order to guarantee a strong focus and efficiency, FREEDOM will focus on: advanced interference-aware cooperative PHY techniques; improvement of the control plane procedures for seamless connectivity and system-level and hardware feasibility evaluation of the proposed femto-based network architecture.
Agency: European Commission | Branch: H2020 | Program: MSCA-ITN-ETN | Phase: MSCA-ITN-2014-ETN | Award Amount: 3.86M | Year: 2015
The fifth-generation (5G) is coming.Quo vadis 5G?What architectures, network topologies and technologies will define it?Are methodologies to the analysis, design and optimization of current cellular networks still applicable to 5G? 5Gwireless is the first integrated and multi-disciplinary training-through-research network of ESRs and Senior Supervisors fully committed to re-architecting current cellular principles aiming at making 5G a reality, it will define and optimize radically-changing architectures and technologies leading to a wholesale re-thinking of cellular operational principles & architectures, network topologies, transmission technologies and methods to their analysis, design and optimization. It will recruit 15 ESRs having the objective of conducting top-notch research at national, European and international levels.ESRs will receive personalized training and will conduct theoretical and applied research on fundamental challenges to the development of 5G systems and networks. According to the 5G Public-Private Partnership (5GPPP) recently formed by the EU, 5G networks need to be designed, engineered and optimized by relying on innovative technologies capable of providing 1000 times higher capacity and a 90% reduction in energy consumption compared to the status quo.Such a fundamental and radical paradigm-shift in network design and architecture requires cross-sectoral skills&background and can very unlikely be realized by researchers that have not received personalized training on innovative technologies and adequate methodological tools to their analysis.5Gwireless mission is to create a vibrant EU-based training and research environment for young researchers aiming at designing architectures, systems and algorithms for building the 5G cellular network of tomorrow. 5Gwireless is first step in that direction having the long-term target of preparing the first highly-selected & trained class of competent academic researchers and industrial professionals.
Tenoux T.,SIRADEL |
Lostanlen Y.,Siradel Wireless Expertise and Research Center
Physical Communication | Year: 2012
Depolarization is herein investigated for urban radio propagation. First, a theoretical study on some fundamental depolarizing mechanisms along one path, involving single and double reflection as well as wedge diffraction, is presented. Significant parameters impacting on XPR (cross polarization ratio) as the oblique incidence angle on walls or streets orientation with regards to the transmitter-receiver axis are studied thanks to simple theoretical models.XPR is also analyzed using deterministic propagation simulations in a realistic typical urban environment. The conclusions drawn in the theoretical study for single phenomena are also observed at the scale of several streets combining several paths: XPR decreases in proportion to these parameters change. These observations have been confirmed by polarimetric measurements conducted in Tokyo which are given in the last part. © 2012 Elsevier B.V.
Denis E.,Siradel |
Burck R.,Siradel |
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives | Year: 2010
This paper presents a complete pipeline for extracting and modeling urban roads as 3D surfaces, using laser points acquired from a terrestrial mobile mapping system (MMS) and existing 3D road axes derived from aerial imagery. First ground points are extracted from the laser cloud with an adapted surface growing method. Then the pavement edges are detected by analysing the elevation gradient, then ordered and connected. After registration to the laser data, the existing road axes are associated to the detected pavement edge components. Finally, the road surface and the road width are estimated for each road segment. Our method is illustrated on test data sets describing narrow historical streets. It shows good results, despite the significant slope of the street and the numerous parked cars occluding the curbstones. The road surface is delineated all along the street, and the estimated width is very close to ground truth.
Benitez S.,SIRADEL |
Denis E.,SIRADEL |
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives | Year: 2010
This paper presents a fully automatic method for computing occlusion-free rectified façade textures, using an input 3D model and data acquired with a mobile mapping vehicle. The purpose of this study is to enhance available building 3D models with realistic textures. The terrestrial data consist of geo-referenced terrestrial images and a laser point cloud. The method is three-folded. Firstly the input 3D model and the terrestrial data are registered, and each façade image is geometrically rectified. Secondly "predictable" and "non-predictable" occlusions are detected combining laser and image information. Finally the images are merged into rectified occlusion-free seamless façade textures. The main novelty of the system is the method for occlusion management.