2017
SAADI S, M. Djebabra, M. Mouda and D. Belala, BOULAGOUAS W.
Contribution to the evaluation of the environmental risks induced by the worn-water discharges of an Algerian tannery. World Journal of Science, Technology and Sustainable DevelopmentWorld Journal of Science, Technology and Sustainable Development. 2017;14 :268-278.
SAADI S, M. Djebabra, M. Mouda and D. Belala, BOULAGOUAS W.
Contribution to the evaluation of the environmental risks induced by the worn-water discharges of an Algerian tannery. World Journal of Science, Technology and Sustainable DevelopmentWorld Journal of Science, Technology and Sustainable Development. 2017;14 :268-278.
SAADI S, M. Djebabra, M. Mouda and D. Belala, BOULAGOUAS W.
Contribution to the evaluation of the environmental risks induced by the worn-water discharges of an Algerian tannery. World Journal of Science, Technology and Sustainable DevelopmentWorld Journal of Science, Technology and Sustainable Development. 2017;14 :268-278.
SMAIAH M, DJBABRA M, BAHMED L.
Contribution to the Improvement of the MADS–MOSAR Method for the Modeling of Domino Effects. J Fail. Anal. and PrevenJ Fail. Anal. and Preven. 2017;17 :440–449.
SMAIAH M, DJBABRA M, BAHMED L.
Contribution to the Improvement of the MADS–MOSAR Method for the Modeling of Domino Effects. J Fail. Anal. and PrevenJ Fail. Anal. and Preven. 2017;17 :440–449.
SMAIAH M, DJBABRA M, BAHMED L.
Contribution to the Improvement of the MADS–MOSAR Method for the Modeling of Domino Effects. J Fail. Anal. and PrevenJ Fail. Anal. and Preven. 2017;17 :440–449.
Smaiah M, Djebabra M, Bahmed L.
Contribution to the Improvement of the MADS–MOSAR Method for the Modeling of Domino Effects. Journal of Failure Analysis and PreventionJournal of Failure Analysis and Prevention. 2017;17 :440-449.
Smaiah M, Djebabra M, Bahmed L.
Contribution to the Improvement of the MADS–MOSAR Method for the Modeling of Domino Effects. Journal of Failure Analysis and PreventionJournal of Failure Analysis and Prevention. 2017;17 :440-449.
Smaiah M, Djebabra M, Bahmed L.
Contribution to the Improvement of the MADS–MOSAR Method for the Modeling of Domino Effects. Journal of Failure Analysis and PreventionJournal of Failure Analysis and Prevention. 2017;17 :440-449.
Mokhtari S, Djebabra MEBAREK, Bellaala D, Boulagouas W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method. Management of Environmental Quality: An International JournalManagement of Environmental Quality: An International Journal. 2017.
MOKHTARI S, DJEBARA M, BELLAALA D, BOULAGOUAS W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method", , 2017, :. Management of Environmental QualityManagement of Environmental Quality. 2017;28 :651-663.
Mokhtari S, Djebabra MEBAREK, Bellaala D, Boulagouas W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method. Management of Environmental Quality: An International JournalManagement of Environmental Quality: An International Journal. 2017.
MOKHTARI S, DJEBARA M, BELLAALA D, BOULAGOUAS W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method", , 2017, :. Management of Environmental QualityManagement of Environmental Quality. 2017;28 :651-663.
Mokhtari S, Djebabra MEBAREK, Bellaala D, Boulagouas W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method. Management of Environmental Quality: An International JournalManagement of Environmental Quality: An International Journal. 2017.
MOKHTARI S, DJEBARA M, BELLAALA D, BOULAGOUAS W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method", , 2017, :. Management of Environmental QualityManagement of Environmental Quality. 2017;28 :651-663.
Mokhtari S, Djebabra MEBAREK, Bellaala D, Boulagouas W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method. Management of Environmental Quality: An International JournalManagement of Environmental Quality: An International Journal. 2017.
MOKHTARI S, DJEBARA M, BELLAALA D, BOULAGOUAS W.
Contribution to the investment evaluation in terms of the forest fires prevention using the cost-benefit analysis method", , 2017, :. Management of Environmental QualityManagement of Environmental Quality. 2017;28 :651-663.
Saidi R, Saidi L, Regai Z-el-abidine.
Contribution to the performance of mobile radio systems by optimizing the Okumura Hata model by linear regression: Application to the city of Annaba in Algeria. International Journal on Electrical Engineering and InformaticsInternational Journal on Electrical Engineering and Informatics. 2017;9 :677-689.
AbstractThe study of propagation characteristics is a fundamental step in mobile radio engineering; which is intended to achieve maximum performance for a mobile radio system. To do this, the propagation models are essential tools for this study such as the evaluation of the signal strength received by a mobile terminal, the evaluation of coverage radii and deduce the number of cells needed to cover a given area, such as radio planning, which in turn is the step that aims to estimate the necessary equipment and configurations of the radio interface. In this work we adopt the standard K factor model and OKUMURA HATA model to demonstrate a propagation model adapted to the physical environment of the city of Annaba in Algeria using a linear regression algorithm based on the ordinary least squares method. Radio measurements were carried out on the CDMA network of operator Mobilis. The calculation of the square root of the mean square error between the actual data and the radio measurements and the prediction data derived from the model implemented allowing the validation of the results obtained. A comparative study between the value of the RMSE obtained by the new model and those obtained by the models K standard factors and the model of OKUMURA HATA allows us to conclude that the new model is better adapted to our local environment than that of OKUMURA HATA. The new model obtained can help increase the performance of mobile radio systems deployed in our territory. © 2017, School of Electrical Engineering and Informatics. All rights reserved.
Saidi R, Saidi L, Regai Z-el-abidine.
Contribution to the performance of mobile radio systems by optimizing the Okumura Hata model by linear regression: Application to the city of Annaba in Algeria. International Journal on Electrical Engineering and InformaticsInternational Journal on Electrical Engineering and Informatics. 2017;9 :677-689.
AbstractThe study of propagation characteristics is a fundamental step in mobile radio engineering; which is intended to achieve maximum performance for a mobile radio system. To do this, the propagation models are essential tools for this study such as the evaluation of the signal strength received by a mobile terminal, the evaluation of coverage radii and deduce the number of cells needed to cover a given area, such as radio planning, which in turn is the step that aims to estimate the necessary equipment and configurations of the radio interface. In this work we adopt the standard K factor model and OKUMURA HATA model to demonstrate a propagation model adapted to the physical environment of the city of Annaba in Algeria using a linear regression algorithm based on the ordinary least squares method. Radio measurements were carried out on the CDMA network of operator Mobilis. The calculation of the square root of the mean square error between the actual data and the radio measurements and the prediction data derived from the model implemented allowing the validation of the results obtained. A comparative study between the value of the RMSE obtained by the new model and those obtained by the models K standard factors and the model of OKUMURA HATA allows us to conclude that the new model is better adapted to our local environment than that of OKUMURA HATA. The new model obtained can help increase the performance of mobile radio systems deployed in our territory. © 2017, School of Electrical Engineering and Informatics. All rights reserved.
Saidi R, Saidi L, Regai Z-el-abidine.
Contribution to the performance of mobile radio systems by optimizing the Okumura Hata model by linear regression: Application to the city of Annaba in Algeria. International Journal on Electrical Engineering and InformaticsInternational Journal on Electrical Engineering and Informatics. 2017;9 :677-689.
AbstractThe study of propagation characteristics is a fundamental step in mobile radio engineering; which is intended to achieve maximum performance for a mobile radio system. To do this, the propagation models are essential tools for this study such as the evaluation of the signal strength received by a mobile terminal, the evaluation of coverage radii and deduce the number of cells needed to cover a given area, such as radio planning, which in turn is the step that aims to estimate the necessary equipment and configurations of the radio interface. In this work we adopt the standard K factor model and OKUMURA HATA model to demonstrate a propagation model adapted to the physical environment of the city of Annaba in Algeria using a linear regression algorithm based on the ordinary least squares method. Radio measurements were carried out on the CDMA network of operator Mobilis. The calculation of the square root of the mean square error between the actual data and the radio measurements and the prediction data derived from the model implemented allowing the validation of the results obtained. A comparative study between the value of the RMSE obtained by the new model and those obtained by the models K standard factors and the model of OKUMURA HATA allows us to conclude that the new model is better adapted to our local environment than that of OKUMURA HATA. The new model obtained can help increase the performance of mobile radio systems deployed in our territory. © 2017, School of Electrical Engineering and Informatics. All rights reserved.