Charlotte LANGLAIS


Enseignant Chercheur



Contact information:


+33 2 29 00 15 34


IMT Atlantique Bretagne-Pays de la Loire
Campus de Brest
Technopôle Brest-Iroise
CS 83818
29238 Brest cedex 03

    Charlotte Langlais is a Study Director at the mathematical and electrical engineering (MEE) department of IMT Atlantique (former Télécom Bretagne since 2017). From 2002 to 2020 she was an associate professor in the same department.  She received the Habilitation à Diriger des recherches (HDR) in 2021. She received her engineering degree and master degree from Institut National des Sciences Appliquées (INSA) de Rennes in 1999. From 1999 to 2002, she worked with France Télécom R&D (currently Orange Labs) during her PhD funded by the CIFRE program. She received her PhD degree in Electronics  from INSA de Rennes in 2002. She studied turbo-equalization adapted to wireless HF ionospheric transmission. She proposed to improve the transmission performance by combining  turbo-demodulation and turbo-equalization.

    As a teacher, she is in charge of two courses in the domain of basics in digital electronics. To help to deal with students' heterogeneity, she applied a new way of teaching thanks to flipped classrooms. She has also participated in active learning since 2002 via project based learning.  Since the beginning of the merging project with Mines Nantes, she has coordinated the group in charge of the definition of the curriculum for the project courses. Now she is in charge of the coordination of the "pôle Projets et SAR (Situation d'Apprentissage Riche)",  whose role is to lead the community of teachers in charge of the different projects of the curriculum. She is also in charge of the projet Commande Entreprise of the 3rd semester, with more than 50 economic partners.

    Her current research interests are in signal processing and digital communications and more specifically wireless communications, coding and modulation, MIMO systems, multi-user transmission and modelization of channel propagation and its impact on algorithms design.

    The 12th International Symposium on Topics in Coding  will take place in Brest ! More details here 

    Click to go the web site of the Lab:logo lab-stick Charlotte Langlais Click to see my Google scholar page:

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    My PhD work was performed in an industrial context at France Telecom R&D (currently Orange Labs) thanks to a CIFRE convention. I have been aware of the importance of innovation and research in the industry world. Since my arrival at IMT Atlantique (former Telecom Bretagne), I have tried to keep a strong link with the industrials thanks to research contracts. Long term contracts are seeking to perform high quality research and innovation.

    I have also participated to collaborative research projects that are listed here.

    Regional level

    PALMYRE - plateforme de développement et d'évaluation des systèmes radioélectriques.

    IGCYC - 2008-2010- "Identification des gains de consommations dans les systèmes de communications" - funded by UEB (Université Europénne de Bretagne).

    COMCOOP -2009-2012 - "Communications coopératives" - funded by UEB (Université Europénne de Bretagne).

    GIGADEC - 2011-2013 - "Architectural solutions for turbo decoder and turbo receiver for 4G mobile networks" - funded by Région Bretagne.

    BoWI - 2012-2016 - "Body World Interaction -
    Towards an accurate gesture and body movement estimation 
    using very-small and low-power wearable sensor nodes"- funded by CominLabs.

    RS-COM - 2013-2016 - funded by B-com.

    ARED MILLIRIS - 2022-2025 - funded by Brittany Region.

    SAD ENERCAP- 2022-2023 - funded by Brittany Region.

    National level

    MOCAMIMODYN -2008-2012- "Modèles de Canaux MIMO Dynamiques en tunnel pour des applications de transport public" - Partners  INRETS-LEOST, Univ. Poitiers-XLIM, Alstom, RATP - funded by ANR (Agence nationale de la recherche).

    International level

    B21C - "Broadcast for 21st Century" - Evolutions of Digital Video Broadcasting - funded by EU.

    ADMOST -  "Advanced Modem Prototype for Interactive
    Satellite Terminals" - Partners STM Norway, DLR, TurboConcept, Thales Alenia Space, Verisat -  funded by ESA.

    COOPERATIVE COMMUNICATIONS WITH SIDE INFORMATION - 2011-2013- funded by Ministère des affaires étrangères et européennes (PHC Dalen) - co-leaded with Alexandre Graell i Amat, Chalmers university of Technology, Sweden.

    PhD graduate students

    Jérôme Le Masson (2002-2005) - "Systèmes de transmission avec précodage linéaire et traitement itératif. Application à l'OFDM et aux techniques MIMO". Co-encadré avec Claude Berrou. Actuellement enseignant-chercheur à l'école des officiers de Saint Cyr Coëtquidan.

    Irène Mahafeno (2003-2007) - "Etude de la technique d'accès multiple IDMA (Interleave Division Multiple Access)". Co-encadré avec Christophe Jégo et Claude Berrou. Actuellement ingénieur de recherche.

    Daoud Karakolah (2006-2009) - "Conception et prototypage d'un récepteur itératif pour des systèmes de transmission MIMO avec précodage linéaire". Co-encadré avec Christophe Jégo et Michel Jézéquel. Actuellement enseignant-chercheur à Damas, Syrie.

    Haïfa Fares (2008-2011) - "Hybrid automatic repeat request protocols for user cooperation - Relaying scheme for correlated sources". Co-encadrée avec Alexandre Graell i Amat et Marion Berbineau. Actuellement enseignante-chercheure à Centrale-Supélec Rennes.

    Ammar El Falou (2009-2013) - "Analysis and design of space-time block codes for coded MIMO transmissions". Co-encadré par Charbel Abdel Nour et dirigé par Catherine Douillard. Actuellement enseignant à l'Université Libanaise.

    Jean-Marc Kwadjane (2011-2014) - "Contribution of a priori knowledge of the position of the transmitter on the MIMO adaptive algorithms in underground tunnel environments". Co-encadré avec Baptiste Vrigneau, Marion Berbineau et Yann Cocheril. Actuellement consultant pour Wavestone.

    Viet Hoa Nguyen (2012-2016) - "Energy-efficient cooperative techniques for Wireless Body Area Sensor Networks". Co-encadré avec Olivier Berder et Baptiste Vrigneau, financé par Cominlabs projet Bowi. Actuellement ingénieur de recherche à Mitsubishi Electric Research Centre Europe (MERCE), Rennes.

    Antoine Rozé (2013-2016) - "Etude de futurs systèmes utilisant les techniques Massive MIMO à des fréquences millimétriques pour les small cells. Optimisation système et forme d’onde.". Co-encadré avec Matthieu Crussière et Maryline Hélard, financé par B-com.

    Wissem Benali (2014-2017) - Thèse CIFRE, Orange Labs. Co-encadré avec Sylvie Kerouédan et Marie Le Bot.  Actuellement Ingénieur développement pour Zodiac Aerospace.


    Nicolas Alibert (2015-2018) - " Algorithmes itératifs de prédistorsion adaptés à la montée en débit des communications par satellite".Thèse CIFRE, Mitsubishi Electric Research Centre Europe. Co-endadré avec Karine Amis et Damien Castelain.

    Israa Khaled (2018-2022) - " Multi-user angle-domain beamforming and non-orthogonal multiple access for millimeter-wave massive MIMO systems". Thèse en co-tutelle avec l'Université Libanaise. Co-encadrée avec Ammar El Falou, Bachar ElHassan, et Michel Jézéquel. Actuellement en post-doc à IMT Atlantique.


    Current PhD students

    Aline Habib (2022-...) -  "Reconfigurable intelligent surfaces for millimeter wave systems in tunnels". co-supervised  with Marion Berbineau (UGE) et Ammar El Falou ( KAUST). Founded by la Région Bretagne, projet ARED MILLIRIS.

    Master Students


    Aline Habib - 2022 - Reconfigurable Intelligent Surface assisted MIMO Systems in Millimeter-Wave Communications using a Realistic Channel Simulator NYUSIM.

    Israa Khaled - 2018 - Capacity study of MIMO precoding for 5G mmWave transmission.

    Mariam El Hassan - 2017 - Massive MIMO precoding for mmWave transmission with the NYUSIM propagation channel simulator.

    Nathan Noutehou - 2014 - Turbo receiver for wireless transmission in LTE standard.

    Sumala Grandhe (Bachelor of Technology, Electronics and Communication Engineering, NIT, Warangal, India)- 2013 - "SC-OFDMA for the LTE uplink transmission". Funded by Charpak scholarship of Excellence Programme 2012.

    Elhassan Gueye - 2012 - "MIMO precoding for turbo coded user cooperation". Co-encadré avec Haïfa Farès et Jianxiao Yang.

    Sidi Ould Mohamed - 2011 - "MIMO Systems for turbo coded cooperation over orthogonal and non-orthogonal channels". Co-supervised with Haïfa Farès and Alexandre Graell i Amat.

    Yasmine Zrelli - 2009-2010

    Salim Haddad - 2009 - "Réduction de la puissance crête émise d'un signal OFDM pour la nouvelle génération de télévision numérique terrestre DVB-T2". Co-encadré avec Charbel Abdel Nour.

    Sergio Andrès Andraus Robayo - 2006 - "Precoded iterative OFDM system".

    Mario Andres Castillo - 2005 - " Peak power problem in OFDM and linearly precoded systems".

    S. Razafindrakoto - 2005.

    Hocine Ait Saadi - 2004 - "Etude des variations de puissance émise pour un système multiporteuses simple".

    Post-Doc/Research assistant

    Camilo Londono Fuentes (2008-2009) -  working for B21C project (Celtic project, Eureka programme with European Union fundings) - "MIMO transmission for new generation of the terrestrial digital  video broadcast system (DVB-T2)".

    Jianxiao "Shawn" Yang (2009-2012) - working for MOCAMIMODYN project (ANR project funded by PREDIT) - "Iterative receiver based on graph for MIMO transmissions", "Channel emulator for dynamic MIMO channel model".

    Elhassan Gueye  (2012-2013) - working for GIGADEC project (funded by Region Bretagne) - "Software simulation chain for the physical layer of the uplink LTE".

    Haïfa Fares (2011-2013) - working on several topics: "Adaptive turbo coded cooperation", "Correlated sources in a relay network", "Finite SNR DMT for relay networks", "Software simulation chain for the physical layer of the uplink LTE".

    Israa Khaled (2022-2023) - working on communication technologies for improving Wake Up Radio. Projet ENERCAP "ENERgie des Capteurs pour une Agriculture de Précision connectée et sobre" founded by La Région Bretagne, Call SAD 2021