Rafik Zayani

Rafik Zayani

Membre associé
Team: Traitement du signal et architectures électroniques
Personal website:
Office: 11.B1.76

Rafik Zayani received the Engineering, M.Sc., and Ph.D. degrees from the École Nationale d’Ingénieurs de Tunis (ENIT), in 2003, 2004, and 2009, respectively. He was with the Laboratory of Communications Systems, ENIT, from 2003 to 2005. From 2004 to 2009, he was with the Department of Telecommunication and Networking, Institut Supérieur d’Informatique (ISI), Tunis, as a Contractual Assistant Professor. Since 2005, he has been with the Innov’COM Laboratory, Sup’Com School, Tunisia. Since 2009, he has also been an Assistant Professor (tenure position) with ISI, Tunisia. Since 2010, he has also been an Associate Researcher with the CEDRIC Laboratory, Conservatoire National des Arts et Métiers, France. He is currently an Established Researcher with long experience in multicarrier communications and energy efficiency enhancement by transmitter linearization techniques (baseband DPD) and PAPR reduction; high power amplifier characterization; neural networks; identification modeling and equalization; and MIMO technologies. He was involved in developing enhanced multicarrier waveforms, such as FBMC-OQAM, UFMC, GFDM, BF-OFDM, and WOLA-OFDM. He has contributed to several European (EMPHATIC) and French (WONG5) projects that aim at designing flexible air-interfaces for future wireless communications (5G and Beyond). He has recently been awarded a H2020 Marie Sklodowska-Curie Actions (MSCA) Individual Fellowship Grant for his ADMA5 project proposal.

2024

Rapports

  1. Demmer, D.; Doré, J-B.; Zayani, R.; Le Ruyet, D.; Chevalier, P.; Jaziri, A. and Corre, Y. ANR POSEIDON D4.1 Proof of Concept - Integration Plan. Technical Report, CEA-LETI, 2024.
  1. Beldi, C.; Le Ruyet, D.; Shaiek, H.; Zayani, R. and Doré, J-B. ANR POSEIDON Deliverable D3.2 - Cell-free MIMO: Channel estimation, acquisition and MU precoding and detection - preliminary version. Technical Report, CEDRIC Lab/CNAM ; CEA LETI, 2024.
  1. Jaziri, A.; Corre, Y.; Doré, J-B.; Demmer, D. and Zayani, R. Channel models, samples and network deployment strategies. Technical Report, SIRADEL ; CEA Leti ; CNAM ; IETR, 2024.

2023

Rapports

  1. Doré, J-B.; Demmer, D.; Zayani, R.; Asma, M.; Le Ruyet, D.; Shaiek, H.; Chevalier, P.; Nafkha, A.; Farès, H.; Corre, Y. and Jaziri, A. ANR-POSEIDON Deliverable D1.1: Scenario description KPIs and PHY requirements. Technical Report D1.1, CEA LETI ; CNAM, 292 rue Saint-Martin, 75003 Paris ; IETR ; SIRADEL, 2023.

2022

Articles de conférence

  1. Cheng, X.; Zayani, R.; Ferecatu, M. and Audebert, N. Efficient Autoprecoder-based deep learning for massive MU-MIMO Downlink under PA Non-Linearities. In IEEE Wireless Communications and Networking Conference, Austin, United States, 2022. www 

2020

Articles de revue

  1. Cheng, X.; Zayani, R.; Shaiek, H. and Roviras, D. Analysis and Cancellation of Mixed-Numerologies Interference for Massive MIMO-OFDM UL. In IEEE Wireless Communications Letters, 9 (4): 470-474, 2020. doi  www 
  1. Fhima, H.; Zayani, R.; Shaiek, H.; Roviras, D.; Chang, B. S. and Bouallegue, R. Comparison of Linear, Widely Linear and Fresh Equalizers for FBMC-OQAM Systems with Different Numerologies. In Wireless Personal Communications, 2020. doi  www 

Articles de conférence

  1. Benosman, M.; Shaiek, H.; Bendimerad, Y.; Zayani, R.; Roviras, D. and Bendimrad, F. T. Low Complexity Neural Network Based Digital Predistortion for Memory Power Amplifier. In The 6th International Conference on Mobile, Secure and Programmable Networking, Springer, Paris, France, Lecture Notes in Computer Science, vol 12605 , 2020. doi  www 

Thèses et habilitations

  1. Zayani, R. Energy-Efficient Digital Signal Processing for Multi-carrier and Multi-antenna Systems. Ph.D. Thesis, Conservatoire National des Arts et Métiers Paris, 2020.

2019

Articles de revue

  1. Zayani, R.; Shaiek, H. and Roviras, D. Ping-Pong Joint Optimization of PAPR Reduction and HPA Linearization in OFDM Systems. In IEEE Transactions on Broadcasting, 65 (2): 308-315, 2019. doi  www 
  1. Cheng, X.; Zayani, R.; Shaiek, H. and Roviras, D. Inter-Numerology Interference Analysis and Cancellation for Massive MIMO-OFDM Downlink Systems. In IEEE Access, 7: 177164-177176, 2019. doi  www 
  1. Shaiek, H.; Zayani, R.; Medjahdi, Y. and Roviras, D. Analytical Analysis of SER for Beyond 5G Post-OFDM Waveforms in Presence of High Power Amplifiers. In IEEE Access, 7: 29441-29452, 2019. doi  www 
  1. Zayani, R.; Shaiek, H. and Roviras, D. Efficient Precoding for Massive MIMO Downlink Under PA Nonlinearities. In IEEE Communications Letters, 23 (9): 1611-1615, 2019. doi  www 
  1. Njima, W.; Ahriz, I.; Zayani, R.; Terre, M. and Bouallegue, R. Deep CNN for Indoor Localization in IoT-Sensor Systems. In Sensors, 19 (14): 3127, 2019. doi  www 
  1. Njima, W.; Zayani, R.; Ahriz, I.; Terre, M. and Bouallegue, R. Beyond Stochastic Gradient Descent for Matrix Completion Based Indoor Localization. In Applied Sciences, 9 (12): 2414, 2019. doi  www 
  1. Zayani, R.; Shaiek, H. and Roviras, D. PAPR-Aware Massive MIMO-OFDM Downlink. In IEEE Access, 7: 25474-25484, 2019. doi  www 

Articles de conférence

  1. Njima, W.; Terre, M.; Ahriz, I.; Zayani, R. and Bouallegue, R. Localization by inversion of the Taylor Expansion of the received power. In 2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), pages 1-6, IEEE, Istanbul, France, 2019. doi  www 

Divers

  1. Traverso, S.; Zayani, R.; Shaiek, H.; Alexandre, C.; Roviras, D. and Doré, J-B. Waveforms MOdels for Machine Type CommuNication inteGrating 5G Networks (WONG5). , Document Number D5.2 - ANR-15-CE25-0005, WONG5. www 

Rapports

  1. Zayani, R.; Traverso, S.; Shaiek, H.; Alexandre, C.; Roviras, D. and Doré, J-B. Waveforms MOdels for Machine Type CommuNication inteGrating 5G Networks (WONG5) Document Number D5.3 Experimental testbed of post-OFDM Waveforms. Technical Report, Cnam Paris, 2019.

2018

Articles de revue

  1. Zayani, R.; Shaiek, H.; Cheng, X.; Fu, X.; Alexandre, C. and Roviras, D. Experimental Testbed of Post-OFDM Waveforms Toward Future Wireless Networks. In IEEE Access, 6: 67665-67680, 2018. doi  www 

Articles de conférence

  1. Tani, K.; Medjahdi, Y.; Shaiek, H.; Zayani, R. and Roviras, D. PAPR reduction of post-OFDM waveforms contenders for 5G & Beyond using SLM and TR algorithms. In 2018 25th International Conference on Telecommunications (ICT), pages 104-109, IEEE, St. Malo, France, 2018. doi  www 
  1. Fhima, H.; Shaiek, H.; Zayani, R.; Roviras, D.; Chang, B. S. and Bouallegue, R. Analysis of Widely Linear Equalization over Frequency Selective Channels with Multiple Interferences. In 2018 14th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), pages 83-88, IEEE, Limassol, France, 2018. doi  www 
  1. Medjahdi, Y.; Lou"et, Y.; Roviras, D.; Traverso, S.; Gerzaguet, R.; Shaiek, H.; Zayani, R.; Demmer, D.; Zakaria, R.; Doré, J-B.; Ben Mabrouk, M. and Le Ruyet, D. Impact of selective channels on post-OFDMwaveforms for 5G Machine Type Communications. In International Symposium on Wireless Communication System (ISWCS 2018), Lisbonne, Portugal, 2018. doi  www 
  1. Lou"et, Y.; Roviras, D.; Nafkha, A.; Shaiek, H. and Zayani, R. Global power amplifier efficiency evaluation withPAPR reduction method for post-OFDM waveforms. In International Symposium on Wireless Communication System (ISWCS 2018), Lisbonne, Portugal, 2018. doi  www 
  1. Fhima, H.; Chang, B. S.; Zayani, R.; Shaiek, H.; Roviras, D. and Bouallegue, R. Performance of Linear and Widely Linear Equalizers for FBMC/OQAM modulation. In 2018 25th International Conference on Telecommunications (ICT), pages 605-609, IEEE, St. Malo, France, 2018. doi  www 
  1. Hraiech, Z.; Abdelkefi, F.; Siala, M. and And Zayani, R. On the Performances of POPS-PHYDYAS waveforms. In VTC Spring 2018 : IEEE 87th Vehicular Technology Conference, Porto, Portugal, 2018. doi  www 
  1. Zayani, R.; Shaiek, H.; Alexandre, C.; Kielys, A.; Cheng, X.; Fu, X. and Roviras, D. A Testbed for Experimental Performance Evaluation of Multicarrier Waveforms in Presence of RF PA. In 2018 15th International Symposium on Wireless Communication Systems (ISWCS), pages 1-6, IEEE, Lisbon, Portugal, 2018. doi  www 

Rapports

  1. Lou"et, Y.; Nafkha, A.; Shaiek, H.; Roviras, D. and Zayani, R. Waveforms MOdels for Machine Type CommuNication inteGrating 5G Networks (WONG5) Document Number D3.3 Overall power budget. Technical Report, CentraleSupélec ; Conservatoire national des arts et métiers - CNAM, 2018.

2017

Articles de revue

  1. Medjahdi, Y.; Traverso, S.; Gerzaguet, R.; Shaiek, H.; Zayani, R.; Demmer, D.; Zakaria, R.; Doré, J-B.; Ben Mabrouk, M.; Le Ruyet, D.; Lou"et, Y. and Roviras, D. On the Road to 5G: Comparative Study of Physical Layer in MTC Context. In IEEE Access, 5: 26556-26581, 2017. doi  www 
  1. Zayani, R.; Shaiek, H.; Roviras, D. and Medjahdi, Y. BER analysis of filter-bank multicarrier with offset quadrature amplitude modulation systems with phase estimation error. In IET Communications, 11 (15): 2269-2273, 2017. doi  www 

Chapitres d'ouvrage

  1. Shaiek, H.; Bulusu, K. C.; Roviras, D.; Zayani, R.; Renfors, M.; Anttila, L. and Abdelaziz, M. Power Amplifier Effects and Peak-to-Average Power Mitigation. In Orthogonal Waveforms and Filter Banks for Future Communications Systems, pages 461-489, Elsevier, 2017. doi  www 

Articles de conférence

  1. Njima, W.; Ahriz, I.; Zayani, R.; Terre, M. and Bouallegue, R. Comparison of similarity approaches for indoor localization. In 2017 IEEE 13th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), pages 349-354, IEEE, Rome, France, 2017. doi  www 
  1. Fhima, H.; Zayani, R.; Shaiek, H.; Roviras, D.; Chang, B. S. and Bouallegue, R. Widely linear equalizer performance with multiple independent interferences. In 2017 IEEE Symposium on Computers and Communications (ISCC), pages 912-917, IEEE, Heraklion, France, 2017. doi  www 
  1. Medjahdi, Y.; Zayani, R.; Shaiek, H. and Roviras, D. WOLA processing: A useful tool for windowed waveforms in 5G with relaxed synchronicity. In 2017 IEEE International Conference on Communications Workshops (ICC Workshops), pages 393-398, IEEE, Paris, France, 2017. doi  www 
  1. Njima, W.; Ahriz, I.; Zayani, R.; Terre, M. and Bouallegue, R. Smart probabilistic approach with RSSI fingerprinting for indoor localization. In 2017 25th International Conference on Software, Telecommunications and Computer Networks (SoftCOM), pages 1-6, IEEE, Split, France, 2017. doi  www 
  1. Gerzaguet, R.; Medjahdi, Y.; Demmer, D.; Zayani, R.; Doré, J-B.; Shaiek, H. and Roviras, D. Comparison of promising candidate waveforms for 5G: WOLA-OFDM versus BF-OFDM. In 2017 International Symposium on Wireless Communication Systems (ISWCS), pages 355-359, IEEE, Bologna, France, 2017. doi  www 
  1. Chang, B.; da Rocha, C.; Fhima, H.; Zayani, R.; Shaiek, H. and Roviras, D. On the performance of a widely linear SC-FDE system under multiple independent interferences. In 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pages 1-5, IEEE, Montreal, France, 2017. doi  www 

Rapports

  1. Lou"et, Y.; Shaiek, H.; Roviras, D.; Medjahdi, Y.; Zayani, R. and Ben Mabrouk, M. Waveforms MOdels for Machine Type CommuNication inteGrating 5G Networks (WONG5) Document Number D3.2 New methods to enhance the energy efficiency. Technical Report, CentraleSupélec ; Conservatoire national des arts et métiers - CNAM, 2017.
  1. Shaiek, H.; Roviras, D.; Medjahdi, Y.; Zayani, R.; Ben Mabrouk, M. and Lou"et, Y. Waveforms MOdels for Machine Type CommuNication inteGrating 5G Networks (WONG5) Document Number D3.1. Technical Report, Conservatoire national des arts et métiers - CNAM, 2017.
  1. Medjahdi, Y.; Traverso, S.; Doré, J-B.; Shaiek, H.; Roviras, D.; Gerzaguet, R.; Zayani, R.; Demmer, D.; Chevalier, P.; Lou"et, Y.; Ben Mabrouk, M.; Zakaria, R. and Le Ruyet, D. Waveforms MOdels for Machine Type CommuNication inteGrating 5G Networks (WONG5) Document Number D2.1 Critical and comparative study of waveforms in C-MTC context. Technical Report, CEDRIC Lab/CNAM, 2017.

2016

Brevets

  1. Shaiek, H.; Roviras, D. and Zayani, R. Procédé de mise en forme d'un signal en vue de son amplification, procédé d'amplification, dispositif de mise en forme, et dispositif d'amplification associés. www 

Articles de conférence

  1. Laabidi, M.; Zayani, R. and Bouallegue, R. A Quick Convergence Active Constellation Extension Projection onto Convex Sets Algorithm for Reducing the PAPR of OFDM System. In 2016 30th International Conference on Advanced Information Networking and Applications Workshops (WAINA), pages 439-443, IEEE, Crans-Montana, France, 2016. doi  www 
  1. Zayani, R.; Medjahdi, Y.; Shaiek, H. and Roviras, D. WOLA-OFDM: A Potential Candidate for Asynchronous 5G. In 2016 IEEE Globecom Workshops (GC Wkshps), pages 1-5, IEEE, Washington, France, 2016. doi  www 

2015

Articles de revue

  1. Dakhli, M. C.; Zayani, R. and Bouallegue, R. BER Analysis and Compensation for the Effects of Polynomial HPA Non-linearity in MIMO OFDM Systems Over Fading Channel. In Wireless Personal Communications, 81 (1): 133-149, 2015. doi  www 
  1. Belkacem, O. B. H.; Ammari, M. L.; Zayani, R. and Bouallegue, R. On the effect of neural network compensation on MIMO-STBC systems in the presence of HPA nonlinearity. In Transactions on emerging telecommunications technologies, 26 (9): 1119-1130, 2015. doi  www 
  1. Zayani, R.; Shaiek, H.; Roviras, D. and Medjahdi, Y. Closed-Form BER Expression for (QAM or OQAM)-Based OFDM System With HPA Nonlinearity Over Rayleigh Fading Channel. In IEEE Wireless Communications Letters, 4 (1): 38-41, 2015. doi  www 

Articles de conférence

  1. Bouhadda, H.; Zayani, R.; Shaiek, H.; Roviras, D. and Bouallegue, R. Receiver Technique for Detection and Correction of Nonlinear High Power Amplifier Distortion Errors in OFDM systems. In IEEE 81st Vehicular Technology Conference, IEEE, Glasgow, United Kingdom, 2015. doi  www 
  1. Zouari, R.; Ahriz, I.; Zayani, R.; Dziri, A. and Bouallegue, R. Relevant CIR parameters selection for fingerprinting based location algorithm. In 2015 23rd International Conference on Software, Telecommunications and Computer Networks (SoftCOM), pages 170-173, IEEE, Split, France, 2015. doi  www 
  1. Laabidi, M.; Zayani, R. and Bouallegue, R. A new tone reservation scheme for PAPR reduction in FBMC/OQAM systems. In 2015 International Wireless Communications and Mobile Computing Conference (IWCMC), pages 862-867, IEEE, Dubrovnik, France, 2015. doi  www 
  1. Laabidi, M.; Zayani, R.; Roviras, D. and Bouallegue, R. PAPR reduction in FBMC/OQAM systems using active constellation extension and tone reservation approaches. In 2015 20th IEEE Symposium on Computers and Communication (ISCC), pages 657-662, IEEE, Larnaca, France, 2015. doi  www 
  1. Bouhadda, H.; Zayani, R.; Shaiek, H.; Roviras, D. and Bouallegue, R. Iterative receiver cancellation of nonlinear power amplifier distortion in FBMC/OQAM system. In 2015 IEEE 11th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), pages 691-695, IEEE, Abu Dhabi, France, 2015. doi  www 

2014

Articles de revue

  1. Dakhli, M. C.; Zayani, R.; Belkacem, O. and Bouallegue, R. Theoretical analysis and compensation for the joint effects of HPA nonlinearity and RF crosstalk in VBLAST MIMO-OFDM systems over Rayleigh fading channel. In EURASIP Journal on Wireless Communications and Networking, 2014 (1), 2014. doi  www 
  1. Zayani, R.; Shaiek, H.; Roviras, D. and Medjahdi, Y. Closed-form BER expression for (QAM or OQAM) based OFDM system with HPA nonlinearity over Rayleigh fading channel. In IEEE Wireless Communications Letters: 00, 2014. www 
  1. Bouhadda, H.; Shaiek, H.; Roviras, D.; Zayani, R.; Medjahdi, Y. and Bouallegue, R. Theoretical analysis of BER performance of non-linearly ampli?ed FBMC/OQAM and OFDM signals. In EURASIP Journal on Advances in Signal Processing, 2014 (1): 1-16, 2014. doi  www 

Articles de conférence

  1. Zayani, R.; Medjahdi, Y.; Bouhadda, H.; Shaiek, H.; Roviras, D. and Bouallegue, R. Adaptive Predistortion techniques for non-linearly ampli?ed FBMC-OQAM signals. In VTC 2014, pages 1-5, X, South Korea, 2014. www 
  1. Bulusu, S. S. K. C.; Shaiek, H.; Roviras, D. and Zayani, R. PAPR Reduction for FBMC-OQAM Systems using Dispersive SLM Technique. In IEEE International Symposium on Wireless Communication Systems, pages 1-5, Barcelona, Spain, 2014. www 
  1. Bouhadda, H.; Shaiek, H.; Medjahdi, Y.; Roviras, D.; Zayani, R. and Bouallegue, R. Sensitivity analysis of FBMC signals to non linear phase distortion. In 2014 ICC - 2014 IEEE International Conference on Communication Workshop (ICC), pages 73-78, IEEE, Sydney, Australia, 2014. doi  www 

2013

Articles de conférence

  1. Cherif Dakhli, M.; Zayani, R. and Bouallegue, R. A theoretical characterization and compensation of nonlinear distortion effects and performance analysis using polynomial model in MIMO OFDM systems under Rayleigh fading channel. In 2013 IEEE Symposium on Computers and Communications (ISCC), pages 000583-000587, IEEE, Split, France, 2013. doi  www 
  1. Belkacem, O.; Ammari, M. L.; Zayani, R. and Bouallegue, R. Capacity Analysis of MIMO-STBC System in the Presence of Nonlinear Distortion and Neural Network Compensator. In ISWCS 2013, IEEE, Ilmenau, Germany, France, 2013. www 

2012

Articles de conférence

  1. Cherif, M.; Zayani, R. and Bouallegue, R. Compensation for nonlinear distortion in MIMO OFDM systems using MMSE receiver. In 2012 IEEE International Conference on Communication Systems (ICCS), pages 115-119, IEEE, Singapore, France, 2012. doi  www 
  1. Dakhli, M. C.; Zayani, R. and Bouallegue, R. A compensation method based on NN at the transmitter and the receiver level for nonlinear distortion in MIMO OFDM systems using MMSE receiver. In 2012 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), pages 000031-000036, IEEE, Ho Chi Minh City, France, 2012. doi  www 
  1. Belkacem O. B., O.; Zayani, R.; Ammari M. L., M. L.; Bouallegue, R. and Roviras, D. Neural network equalization for frequency selective nonlinear MIMO channels. In IEEE Symposium on Computers and Communications (ISCC), pages 18-22, X, France, 2012. www 

2011

Articles de conférence

  1. Bouhadda, H.; Zayani, R.; Bouallegue, R. and Roviras, D. Memory CO-NNPD for the Compensation of Memory Crosstalk and HPA Nonlinearity. In EUSIPCO 2011, Barcelona, pages 794-798, X, Spain, 2011. www 

2010

Articles de conférence

  1. Zayani, R.; Bouallegue, R. and Roviras, D. Crossover Neural Network Predistorter for the Compensation of Crosstalk and Nonlinearity in MIMO OFDM Systems. In Personal Indoor and Mobile Radio Communications, PIMRC 2010, pages 966-970, Istambul, Turkey, 2010. www 
  1. Dakhli, M.; Zayani, R. and Bouallegue, R. On the effect of High Power Amplifier Nonlinearity on MIMO MC-CDMA systems. In 2010 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), pages 186-190, IEEE, Luxor, France, 2010. doi  www 

2009

Thèses et habilitations

  1. Zayani, R. Pré-distorsion adaptative des non-linéarités HPA dans un système OFDM `a l'aide des réseaux de neurones. Ph.D. Thesis, ENIT, 2009.

2008

Articles de revue

  1. Zayani, R.; Bouallegue, R. and Roviras, D. Adaptive Predistortions Based on Neural Networks Associated with Levenberg-Marquardt Algorithm for Satellite Down Links. In EURASIP Journal on Wireless Communications and Networking, 2008 (1): 00, 2008. doi  www 

Articles de conférence

  1. Zayani, R.; Bouallegue, R. and Roviras, D. Levenberg-Marquardt learning neural network for adaptive predistortion for time-varying HPA with memory in OFDM systems. In EUSIPCO2008. 16th European Signal Processing Conference, IEEE, Lausanne, Switzerland, 2008. www 

2007

Articles de conférence

  1. Zayani, R.; Bouallegue, R. and Roviras, D. An adaptive neural network pre-distorter for non stationary HPA in OFDM systems. In EUSIPCO2007, Poznan, Poland, 2007. www 

2006

Articles de conférence

  1. Zayani, R. and Bouallegue, R. A Novel Analog Pre-distorter of TWTA Non-linearity in High Power Satellite Transmitters. In WASA2006, Springer, China, France, Wireless Algorithms, Systems, and Applications. WASA 2006. Lecture Notes in Computer Science, vol 4138 , 2006. doi  www 
Top