Fatiha Youcef Ettoumi

Fatiha Youcef Ettoumi
University of Science and Technology Houari Boumediene | usthb · Department of Telecommunication

Docteur d'Etat en Electronique magister Ingénieur d'état en électronique

About

36
Publications
5,761
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329
Citations
Additional affiliations
October 1987 - present
University of Science and Technology Houari Boumediene
Position
  • Research Director

Publications

Publications (36)
Conference Paper
Wireless technology proliferates rapidly creating a growing demand for spectrum which is a rare resource. This problem is becoming more critical knowing that future wireless applications are expected to be greedy in terms of spectrum. The traditional static spectrum assignment policy leads to an under utilization of significant amount of spectrum....
Poster
Full-text available
we propose a simple and effective new solution to localize fiber defects and anomalies of the fiber optic links.
Conference Paper
Full-text available
Link adaptation in LTE-A is based on channel state information (CSI). For time-selective channels, CSI might be outdated already in the next subframe. Hence, CSI prediction must be employed. This paper investigates support vector regression (SVR) for channel extrapolation and prediction. SVR is applied for learning from the previous channel estimat...
Presentation
Full-text available
In a context of world climatic reheating, the zones in margin of the deserts today are particularly threatened. From there, was born the need to obtain with tools and models for predictions with the temperature in order to establish the future scenarios & assumptions and the climatic impact on its areas. The approach adopted in this work is of type...
Conference Paper
Full-text available
A photovoltaic generator present nonlinear voltage-current characteristics. A boost converter is used to match the photovoltaic system to the load charge and to operate the photovoltaic cell array at maximum power point. This paper presents an application of a neural network for the identification of the optimal operating point of the photovoltaic...
Article
Full-text available
Wireless technology proliferates rapidly creating a growing demand for spectrum which is a rare resource. This problem is becoming more critical knowing that future wireless applications are expected to be greedy in terms of spectrum. The traditional static spectrum assignment policy leads to an under utilization of significant amount of spectrum....
Conference Paper
Wireless technology proliferates rapidly creating a growing demand for spectrum which is a rare resource. This problem is becoming more critical knowing that future wireless applications are expected to be greedy in terms of spectrum. The traditional static spectrum assignment policy leads to an under utilization of significant amount of spectrum....
Article
Full-text available
In this paper, minimum mean square error-support vector regression (MMSE-SVR) is proposed, which is shown to be adequate for the estimation of the long term evolution (LTE) uplink channel with nonlinear features. MMSE-SVR was applied to estimate real channel environments such as the vehicular A channels defined by the International Telecommunicatio...
Article
In this paper, we propose a novel algorithm for a CFAR radar detector. The proposed processor is derivated from OS CFAR one and is based on weighting samples taken for the background level estimate. We assume that targets are embedded in a Gaussian noise and fluctuate according to Swerling I model. First, closed form expressions of the probabilitie...
Article
Full-text available
Given the geographical characteristics of Bordeaux, the coastal radar installed in this region offers an opportunity to put in evidence the ocean-coast-continent interaction and the observation of the rain fields at the landsea transition. To this effect, the study site was divided into three windows of 60x180 km delimiting the ocean west of the ra...
Article
Full-text available
This paper uses data collected by weather stations to develop coupled approach measurements numerical modeling for improving the estimation of wind produciblity. The work aims at improving the foundations for a prediction of a wind profile of quality, at short and long terms. This paper begins with a comparison between different actual methods of e...
Article
Full-text available
In this paper we present the results of performance analysis in terms of real time implementation of CMAP-CFAR detector for radar targets of Swerling I type embedded in white Gaussian noise. So we expose the algorithm considered for its implementation on SPARTAN 3E XC3S500E FPGA card and the results obtained.
Article
Full-text available
In this paper we present the results of performance analysis of a GOWMAX CFAR detector in non homogenous environment. The study is made for radar targets of Swerling I type embedded in white Gaussian noise. The results are presented in terms of probability of detection and false alarm. Also we expose the algorithm considered and the results obtaine...
Article
Full-text available
Water vapor is the most important carrier of energy in the atmosphere and is also the most important greenhouse gas. Its spatial and temporal distribution impacts weather and climate through a variety of processes, such as exchange of latent heat, radiative cooling and heating, cloud formation and precipitation. Clouds as a result of the condensati...
Article
Full-text available
This paper uses data collected by weather stations to develop a neural network solution for extrapolation of wind speeds at heights ranging. Work aims to improve the foundations for a prediction of a wind profile of quality, at short and long terms. This paper begins with a comparison between different actual methods of extrapolation wind speed, an...
Article
In this paper, five typical regions of Algeria where wind is strong enough are selected. These regions usually intended for traditional agriculture are, centred around the towns of Guelma, El Oued, Tindouf, Touggourt and Tamanrasset. To make wind energy conversion available as an alternative energy source for the populations living in such countrie...
Conference Paper
Full-text available
The southern Algeria is desert whereas important water resources are available under the ground. In this region, the water resources are usually exploited by boring wells and distributing water over the cultivable soils thanks to the foggara, an ancestral but efficient and economic irrigation management. With such organisation, oases mainly occupie...
Conference Paper
Full-text available
In this paper, we study the performances of a novel CFAR in homogeneous environment. This processor consists to take maximum power of cells in the reference windows and multiply it by a coefficient alpha (alpha < 1) to obtain the background level estimate. We assume that the target is embedded in a white Gaussian noise and fluctuate according to a...
Data
Trois Défis • Il s’agit de relever 3 défis • Défi n°1 : doter l’UST d’interfaces d’insertion professionnelle des diplômés et jeunes chercheurs • Défi n°2 : ériger l’UST en Centre de ressources et d’expertises • Défi n°3 : créer les synergies croisées nécessaires à la création de pôles de compétitivité : NTIC; Matériaux ; eau…
Article
Full-text available
Résumé -Dans ce travail, nous avons appliqué un modèle généralisé qui décrit la caractéristique courant -tension d'un module photovoltaïque sous différentes conditions d'éclairements et de températures. Des tests ont été effectués sur un module photovoltaïque de type monocristallin Sharp NT-R5E3E. Ceci nous a permit de déterminer les paramètres car...
Conference Paper
Full-text available
Dans le but d’obtenir un outil de développement du généralement PV aussi complet que possible nous avons jugé nécessaire de réaliser une étude comparative entre différents modèles du générateur photovoltaïque, en tenant compte de la variation de deux paramètres qui sont l’éclairement (E) et la température (T). En se basant sur des résultats expérim...
Conference Paper
Full-text available
L’énergie solaire photovoltaïque de part ses caractéristiques de modularité qui permet de l’adapter à des besoins énergétiques divers, autonomie, fiabilité et viabilité sur le plan économique, permet d’apporter de réelles solutions telles que l’éclairage public et domestique, le pompage d’eau pour la consommation et l’irrigation, le balisage, …etc....
Article
Full-text available
Nowadays, technology enables us to pass from the mechanical energy to the electric power in a simpler way and with a great flexibility. This article will present an approach for the design engineering of a wind power system, while analyzing the wind potential starting from the wind velocity measurements, which were gathered in the forms of various...
Article
This paper studies the statistical features of the wind at Oran (Algeria). The data used are the wind speed and wind direction measurements collected every 3 h at the meteorological station of Es Senia (Oran), during the 1982/92 period. The eight directions of the compass card have been considered to build the frequency distribution of the wind spe...
Article
Full-text available
A method of smoothing solar data by beta probability distributions is applied to process daily sunshine duration data recorded at thirty-three meteorological stations in Algeria for eleven year periods or more. Knowing the sunshine duration data and thanks to the Angström equation, the mean global solar radiation flux is estimated.
Article
A method of smoothing solar data by beta probability distributions is implemented in this paper. In the first step, this method has been used to process daily sunshine duration data recorded at thirty-three meteorological stations in Algeria for eleven year periods or more. In the second step, it has been applied to hourly global solar irradiation...
Article
This chapter deals with the analysis of seasonal variations of sunshine duration measured in fifty four meteorological stations of Algeria. The sunshine duration data have been processed on a monthly basis using the Fourier analysis. In the North of Algeria and High Tablelands, the seasonal variations of sunshine duration are conveniently represent...
Chapter
This chapter discusses the performances of a 18 peak-watt double glass polycrystalline photovoltaic (PV) module obtained from outdoor experimentations in the location of Dar El Beida (Algiers) during 1996. The measurements made on the PV module are I–V curves, open circuit voltage, short circuit current, maximum conversion power, fill factor, conve...
Article
Full-text available
Un Projet Tempus est réalisé dans le cadre du Programme Tempus: « Interfaces d’insertion professionnelle par les Universités Scientifiques et Technologiques » constituant une brique dans l’insertion de l’université algérienne dans son environnement économique et social. Il s’agit du développement d’un modèle algérien systémique, dont les fondements...

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