Le Touquet - Paris-Plage, France

ECE Paris Graduate School of Engineering

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Zitouni R.,ECE Paris Graduate School of Engineering | George L.,University Paris Est Creteil
2016 IEEE Radio and Antenna Days of the Indian Ocean, RADIO 2016 | Year: 2016

Universal Software Radio Peripheral (USRP) and GNU Radio are well known Software Defined Radio (SDR) tools. The USRPs designed by Ettus Research are used without a deep knowledge of their performances. In this paper, we report our output power measurements using a USRP B210 driven by a GNU Radio program. Our results show that the obtained output power decreases as the selected central frequency increases. We unveiled the impact of USRP Hardware Driver (UHD) of the GNU Radio on output power of a USRP B210. © 2016 IEEE.


Le Caillec J.-M.,Tlcom Bretagne | Itani A.,Tlcom Bretagne | Guriot D.,Tlcom Bretagne | Rakotondratsimba Y.,ECE Paris Graduate School of Engineering
IEEE Transactions on Fuzzy Systems | Year: 2017

This paper presents a performance evaluation of stock picking by merging several technical indicators. Several fusion operators have been proposed either in the probabilistic or in the possibilistic framework. The latter fuzzy framework has been introduced to manage the uncertain information embedded in financial time series due to human biases as studied by behavioral finance. Performances of portfolio resulting from the proposed systems are evaluated according to cumulative returns but also through a risk analysis point of view (Sharpe ratio). Two fusion mechanisms (one probabilistic, one possibilistic) aiming at discriminating common information from merged technical indicators, produce the higher portfolio performances. It also appears that selecting specific technical indicators affects the overall performances of the proposed stock picking systems. Indeed, studying the technical indicators selection through a shared/nonshared information point of view reveals that possibilistic framework is more robust to redundant sources than probabilistic framework. Effects of some parameters used in the fusion algorithms (amount of assets, window length analysis, ⋯ are also investigated. Results from all these tests clearly show the high potentiality of technical indicators fusion to improve portfolio performances. However, these first promising results have to be further inspected within wider contexts, as discussed at the end of the paper. © 1993-2012 IEEE.


Cabanes Q.,ECE Paris Graduate School of Engineering | Senouci B.,ECE Paris Graduate School of Engineering
International Conference on Ubiquitous and Future Networks, ICUFN | Year: 2017

In this paper we describe our experience and a progressing work in investigating the embedded intelligence in smart automobile. First, we present a new smart embedded computing algorithm for objects detection and recognition. This algorithm combine two important tasks, Segmentation and Box-Slicing. And then, we validate our software algorithm using a LIDAR point cloud data as sensor input on a real HW/SW embedded architecture based on ZedBoard FPGA. The hardware architecture is built on the top of two processor ARM, in the other hand the software application is built around an embedded Linux/ Linaro distribution. This work is considered as a first and important step toward the reconstitution of automobiles environment. © 2017 IEEE.


Ahmed I.,University Paris - Sud | Farha R.,CNRS Nanosciences Institute of Paris | Farha R.,ECE Paris Graduate School of Engineering | Goldmann M.,CNRS Nanosciences Institute of Paris | And 3 more authors.
Chemical Communications | Year: 2013

Films based on electrostatic interactions between tetracationic porphyrin and Dawson type polyoxometalate are formed by the so called layer-by-layer method. Their photovoltaic performances are investigated by photocurrent transient measurements which showed significant photocurrent response. © 2013 The Royal Society of Chemistry.


George L.,University Paris Est Creteil | Courbin P.,ECE Paris Graduate School of Engineering | Sorel Y.,French Institute for Research in Computer Science and Automation
Journal of Systems Architecture | Year: 2011

In this paper, we focus on the semi-partitioned scheduling of sporadic tasks with constrained deadlines and identical processors. We study two cases of semi-partitioning: (i) the case where the worst case execution time (WCET) of a job can be portioned, each portion being executed on a dedicated processor, according to a static pattern of migration; (ii) the case where the jobs of a task are released on a processor, 1 time out of p, where p is an integer at most equal to the number of processors, according to a round-robin migration pattern. The first approach has been investigated in the state-of-the-art by migrating a job at its local deadline, computed from the deadline of the task it belongs to. We study several local deadline assignment heuristics (fair, based on processor utilization and based on the minimum acceptable local deadline for a job on a processor). In both cases, we propose feasibility conditions for the schedulability of sporadic tasks scheduled using earliest deadline first (EDF) semi-partitioned scheduling. We show that the load function used for global scheduling to establish the feasibility of sporadic task sets exhibits interesting properties in the semi-partitioning context. We carry out simulations to study the performance of the two approaches in terms of success rate and number of migrations, for platforms composed of four and eight processors. We compare the performance of these semi-partitioned heuristics with the performance of classical partitioned scheduling algorithms and with a global scheduling heuristic which is currently considered to have good performances. © 2010 Elsevier B.V. All rights reserved.


Ataman S.,ECE Paris Graduate School of Engineering
European Physical Journal D | Year: 2015

Abstract In this paper we describe a Fabry-Perot interferometer in the language of quantum optics. We go on to model the Fabry-Perot interferometer as a beam splitter having frequency dependent transmissivity and reflectivity coefficients. The antibunching, a totally non-classical effect, is to be expected if one excites this interferometer with carefully frequency-selected single photons arriving simultaneously from opposite directions. For carefully chosen frequencies, even slightly different color single photons should be able to show this effect, as long as the photon counters are not frequency selective. Graphical abstract: [Figure not available: see fulltext.] © 2015 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.


Ataman S.,ECE Paris Graduate School of Engineering
European Physical Journal D | Year: 2015

In this paper we describe and thoroughly discuss three reported experiments in quantum optics (QO) involving interferometers and non-linear crystals. We show that by using a graphical method and an over-simplified model of the parametric down-conversion process, we arrive to explain all the important results reported in the respective papers. Indistinguishability is discussed in the case of separable/non-separable (i.e. entangled) quantum systems and our interpretation is sometimes at variance with the one given by the authors reporting the experiments. © 2015 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.


Ataman S.,Extreme Light Infrastructure Nuclear Physics ELI NP | Ataman S.,ECE Paris Graduate School of Engineering
European Physical Journal D | Year: 2016

Abstract: In this paper we propose and analyse a Gedankenexperiment involving three non-linear crystals and two objects inserted in the idler beams. We show that, besides the behaviour that can be extrapolated from previous experiments involving two crystals and one object, we are able to predict a new effect: under certain circumstances, one of the objects can be rendered undetectable to any single detection rate on the signal photons with discarded idler photons. This effect could find applications in future developments of quantum imaging techniques. Graphical abstract: [Figure not available: see fulltext.] © 2016, EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.


Ataman S.,ECE Paris Graduate School of Engineering
European Physical Journal D | Year: 2014

Often cited dictums in Quantum Mechanics include observation disturbance causes loss of interference and ignorance is interference. In this paper we propose and describe a series of experiments with modified Mach-Zehnder interferometers showing that one has to be careful when applying such dictums. We are able to show that without interacting in any way with the light quantum (or quanta) expected to behave wave-like, interference fringes can be lost by simply gaining (or having the potential to gain) the which-path knowledge. Erasing this information may revive the interference fringes. Delayed choice can be added, arriving to an experiment in line with Wheeler's original proposal. We also show that ignorance is not always synonym with having the interference fringes. The often-invoked collapse of the wavefunction is found to be a non-necessary ingredient to describe our experiments. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag.


Ataman S.,ECE Paris Graduate School of Engineering
European Physical Journal D | Year: 2014

In this paper we describe a novel, graphical method, allowing the fast computation of field operator transformations for linear lossless optical devices in quantum optics (QO). The advantage of this method grows with the complexity of the considered optical setup. As case studies we examine the field operator transformations for the beam splitter (BS), the Mach-Zehnder interferometer (MZI) and the double MZI. We consider the simple case with monochromatic input light, as well as extensions to the non-monochromatic case. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag.

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