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1. Low-profile inductive metasurface for surface wave excitation in L-band: design, manufacture and electromagnetic infrared measurements

Author

A. Barka and D. Prost

Subjects
High Frequency Surface Wave Radars (HFSWR), sea surface wave, High Frequency (HF), L band, Inductive surface, Physics, QC1-999, Electricity and magnetism, QC501-766
Abstract

This paper describes a low profile inductive surface for High Frequency Surface Wave Radars (HFSWR). The long-term operating frequency band considered is High Frequency (HF). In this paper we will only discuss L-band in order to simplify the manufacturing phase and the proof of concept. A compact thin 2D Super Inductive Surface (SIS) based on printed metal rings excited by an L-band monopole (1.1 GHz) is proposed to significantly increase (10 dB at the extremity of the SIS and 7 dB at one wavelength further) an electric field in TM polarization (electric field normal at the air/sea interface) required to excite a surface wave. The proposed SIS thickness 10.26 mm, is approximatly three times thinner than a recent 3D SIS developed both in L-band and HF-band which makes it possible to consider surface wave launchers of much lower height in the HF-band in the future. A 2D L-band prototype with a bandwidth of 130 MHz was manufactured and ElectroMagnetic Infrared measuRements (EMIR) confirmed simulated SIS performances.

Published
2022

7. Reinforcement Learning-based Relay Selection for Cooperative WSNs in the Presence of Bursty Impulsive Noise

Author

Barka, Hazem, Alam, Md Sahabul, Kaddoum, Georges, Au, Minh, and Agba, Basile L.

Subjects
Computer Science - Networking and Internet Architecture
Abstract

The problem of relay selection is pivotal in the realm of cooperative communication. However, this issue has not been thoroughly examined, particularly when the background noise is assumed to possess an impulsive characteristic with consistent memory as observed in smart grid communications and some other wireless communication scenarios. In this paper, we investigate the impact of this specific type of noise on the performance of cooperative Wireless Sensor Networks (WSNs) with the Decode and Forward (DF) relaying scheme, considering Symbol-Error-Rate (SER) and battery power consumption fairness across all nodes as the performance metrics. We introduce two innovative relay selection methods that depend on noise state detection and the residual battery power of each relay. The first method encompasses the adaptation of the Max-Min criterion to this specific context, whereas the second employs Reinforcement Learning (RL) to surmount this challenge. Our empirical outcomes demonstrate that the impacts of bursty impulsive noise on the SER performance can be effectively mitigated and that a balance in battery power consumption among all nodes can be established using the proposed methods., Comment: Accepted in 2024 IEEE Wireless Communications and Networking Conference

Published
2024

15. Trustworthy Federated Learning: A Survey

Author

Tariq, Asadullah, Serhani, Mohamed Adel, Sallabi, Farag, Qayyum, Tariq, Barka, Ezedin S., and Shuaib, Khaled A.

Subjects
Computer Science - Artificial Intelligence
Abstract

Federated Learning (FL) has emerged as a significant advancement in the field of Artificial Intelligence (AI), enabling collaborative model training across distributed devices while maintaining data privacy. As the importance of FL increases, addressing trustworthiness issues in its various aspects becomes crucial. In this survey, we provide an extensive overview of the current state of Trustworthy FL, exploring existing solutions and well-defined pillars relevant to Trustworthy . Despite the growth in literature on trustworthy centralized Machine Learning (ML)/Deep Learning (DL), further efforts are necessary to identify trustworthiness pillars and evaluation metrics specific to FL models, as well as to develop solutions for computing trustworthiness levels. We propose a taxonomy that encompasses three main pillars: Interpretability, Fairness, and Security & Privacy. Each pillar represents a dimension of trust, further broken down into different notions. Our survey covers trustworthiness challenges at every level in FL settings. We present a comprehensive architecture of Trustworthy FL, addressing the fundamental principles underlying the concept, and offer an in-depth analysis of trust assessment mechanisms. In conclusion, we identify key research challenges related to every aspect of Trustworthy FL and suggest future research directions. This comprehensive survey serves as a valuable resource for researchers and practitioners working on the development and implementation of Trustworthy FL systems, contributing to a more secure and reliable AI landscape., Comment: 45 Pages, 8 Figures, 9 Tables

Published
2023

29. Investigation of Scanning Strategy Effects on Porosity and Hardness in Selective Laser Melting of H13 Tool Steel

Author

Kisraoui, Chams, Belhadj, Asma, Slama, Salma, Barka, Noureddine, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chouchane, Mnaouar, editor, Abdennadher, Moez, editor, Aifaoui, Nizar, editor, Bouaziz, Slim, editor, Affi, Zouhaier, editor, Romdhane, Lotfi, editor, and Benamara, Abdelmajid, editor

Published
2024
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30. Experimental Study of the Effects of Laser Treatment Settings on the Mechanical Properties of AISI 4340 Steel

Author

Aloui, Meriem, Slama, Salma, Belhadj, Asma, Barka, Noureddine, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chouchane, Mnaouar, editor, Abdennadher, Moez, editor, Aifaoui, Nizar, editor, Bouaziz, Slim, editor, Affi, Zouhaier, editor, Romdhane, Lotfi, editor, and Benamara, Abdelmajid, editor

Published
2024
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31. Hydrogen Production Through Gasification of Organic Matter

Author

Benchrifa, Mohammed, Bencheikh, Imane, Azoulay, Karima, Mabrouki, Jamal, Elouardi, Mohamed, Azaz, Nabil, Ouaamou, Wiam Ait, Barka, Brahim Drissi, Moustaqim, Khadija El, Förstner, Ulrich, Series Editor, Rulkens, Wim H., Series Editor, Mabrouki, Jamal, editor, and Mourade, Azrour, editor

Published
2024
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32. Review About Plant Fibers and Their Composites in Morocco: Description and Utilization in Construction Materials

Author

Tounsadi, H., Bellaouchi, M., Idrissi, N., Taleb, M., Echehab, B., Abkal, F., Barka, N., Rais, Zakia, Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Koubaa, Ahmed, editor, Leblanc, Nathalie, editor, and Ragoubi, Mohamed, editor

Published
2024
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34. Experimental Investigation of SLM Parameters Effects on Roughness of 316L Parts

Author

Bouguerra, Oussema, Slama, Salma, Belhadj, Asma, Barka, Noureddine, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Mabrouki, Tarek, editor, Sahlaoui, Habib, editor, Sallem, Haifa, editor, Ghanem, Farhat, editor, and Benyahya, Nourredine, editor

Published
2024
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44. An assessment of the environmental radiation risk from the petrologic units of north-eastern Nigeria; an insight from aero-radiometric data interpretation

Author

Yusuf, Abubakar, San, Lim Hwee, Mohammed, Mustapha Adejo, Bute, Ibrahim Saleh, Olasehinde, Adeyinka, Mohammed, Ali Garba, Kwami, Ibrahim Abdulkarim, Bello, Abdulwahab Muhammad, Usman, Musa Bappah, Sulaiman, Mohammed Bashir, Dalha, Auwalu, Abubakar, Usman, Mukkafa, Shehu, Barka, Jonathan, and Mboringong, Miranda Nchang

Published
2024
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