All Group Alumni

Yoann Desmouceaux, PhD : Affiliated researcher, Cisco Research Engineer, PhD student (graduated)

Yoann Desmouceaux, PhD

Affiliated researcher, Cisco Research Engineer, PhD student (graduated)

After his studies at École Polytechnique (X11) where he followed the Network/Security track, Yoann Desmouceaux completed his MSc in Advanced Computing at Imperial College London. His Master’s research focused on bringing zero-copy deserialization capabilities to a userland TCP stack

Dr. Desmouceaux obtained his PhD at Ecole Polytechnique, under supervision by Thomas Clausen, in collaboration with Cisco France, on the topic high-performance networking, IPv6-centric protocols and protocol verification.

He successfully defended his PhD on April 10, 2019, before a jury presided by professor Marceau Coupechoux, and composed from dr. Walid Dabbous (rapporteur), professor Olivier Bonaventure (rapporteur), dr Pascale Minet, dr. Sonia Vanier, and mr. Mark Townsley.

Yoann.Desmouceaux@polytechnique.edu

W. Mark Townsley : Professeur Charge de Cours, Cisco Fellow & Vice President

W. Mark Townsley

Professeur Charge de Cours, Cisco Fellow & Vice President

Mark joined Cisco in 1997 as a software engineer, focused on remote access and tunneling protocols in Cisco’s IOS, as well as scaling of the core IOS virtual interface system to support the rapid growth of dial-up and broadband connectivity in the 1990s and early 2000s. Mark is well-known in the Internet Protocol community as well, twice-nominated for terms as IETF Internet Area Director (2005-2009), Layer 2 Tunneling Protocol (L2TP) Working Group Chair (1999-2005), Internet Engineering Steering Group (IESG) Liaison to the Internet Architecture Board (IAB), IETF Pseudowire Working Group Technical Advisor, and is currently co-Chair of the IETF Home Networking Working Group (Homenet). On faculty at Ecole Polytechnique in Paris, Mark also serves as “Professeur chargé de cours”, teaching and mentoring some of the brightest undergraduate and graduate engineering students in France. Before Joining Cisco, Mark held engineering and research positions at IBM, the Institute for Systems Research (ISR) and the Center for Satellite and Hybrid Communications Networks at the University of Maryland.

Mark holds a Bachelor of Science (summa cum laude) degree in Electrical Engineering from Auburn University and a Master’s degree in Computer Science (magna cum laude) from the Johns Hopkins University Applied Physics Laboratory.

Mark.Townsley@polytechnique.edu

Jiazi Yi, PhD : Research Engineer

Jiazi Yi, PhD

Research Engineer

Jiazi Yi joined the Network Research Group of Ecole Polytechnique in 2010 as a postdoc researcher, and was until summer 2021  a research engineer in the group. Jiazi got his Ph.D from University of Nantes, in 2010, a M.Sc. in Electronic System from Polytech’Nantes (France), and a M.Sc. in Computer Science, South China University of Technology.

Jiazi's scientific interests included mobile ad hoc networks, smart grid, routing protocols, sensor networks, long range and low power networks, QoS, etc. His PhD thesis focused on the multi-path routing protocol for ad hoc networks, in which MP-OLSR was proposed. He has published above 30 peer-reviewed publications and co-authored several international standards. He was also one of the main contributors of LOADng routing protocol, which is the default routing mechanism used in G3-PLC for the future smart grid now being deployed in France and allover the world.

His home page is http://jiaziyi.com

Jiazi.Yi@polytechnique.edu

Sonia Toubaline, PhD : Research Fellow

Sonia Toubaline, PhD

Research Fellow

Dr. Sonia Toubaline worked with us as a research fellow on the SOGRID project, which aimed at testing in real conditions a G3-PLC (Power Liner Communication) architecture from electrical domestic meter to source station. Several technological innovations were designed, developed, deployed and assessed to insure a real-time control of low and medium voltage electrical networks.

Her expertise is in mathematical modeling and optimization.

Sonia is currently a faculty member at Université Paris-Dauphine. This is her new homepage.

sonia.toubaline@dauphine.fr

Yifan Du : Research Student

Yifan Du

Research Student

After graduating as a bachelor of information and computing sciences, at Beihang University in China, he entered ESIGELEC graduate school of engineering in France, Yifan DU continues his study in network architecture and security, computer and communication technology department.

His major focused on security (protocols,equipment,architecture), architecture(LAN, MAN…), network(broadband networks,mobile,ad-hoc…)

His research interests include IoT networking QoS, protocol, deployment and security.

Yifan was with our team until August 1, 2017, and is currently pursuing a PhD with the MiMovs team at INRIA Paris.

yifan.du.14@gmail.com

Mohammed Hawari, PhD : PhD student (graduated)

Mohammed Hawari, PhD

PhD student (graduated)

After his engineering studies at École Polytechnique (X12) where he followed the Network/Security track, Mohammed Hawari completed the elite Masters degree in Advanced Communication Networks, jointly offered by Ecole Polytechnique and Telecom-ParisTech. undertaking an industrial PhD under joint supervision of Andre Surcouf (Cisco) and Thomas Clausen (École Polytechnique).

Dr. Hawari successfully defended his PhD on July 6, 2021, before a jury presided by professor Nadia Boukhatem, and composed from with prof. Laurent Toutain (rapporteur), dr. Lars Eggert(rapporteur), and prof. Colin Perkins.

Mohammed.Hawari@polytechnique.edu

Wen Congmin : Research Student

Wen Congmin

Research Student

Wen Congmin is a double-masters student in the  Electronic and Information School of South China University of Technology (SCUT), and at University of Nantes. She is focusing on estimating the direction of arrivals for modulation signals. During her masters, she has been working in the laboratory of École Polytechnique as an intern under supervision of Jiazi YI (École Polytechnique), where she studied Low-Power Wide-Area Networks (LPWAN). Her research interests involves the Internet of Things, LPWAN, Lora, and Array Signal Processing.

congmin.wen@etu.univ-nantes.fr

Zhiyuan Yao : PhD Student

Zhiyuan Yao

PhD Student

After his studies on Aircraft Design and Engineering at Harbin Institute of Technology, Zhiyuan Yao completed his MSc&T in Internet of Things at École Polytechnique, where he focused on computer networking and distributed systems. His Master’s research focused on applying machine learning techniques and distributed algorithms to resource allocation optimisation in data centre networks.

Zhiyuan did his PhD under the joint supervision of Mark Townsley (Cisco) and Thomas Clausen (École polytechnique).

Dr. Yao successfully defended his PhD on May 17, 2023 before a jury presided by prof. Erwan Le Pennec, and with as members Dr. Rémi Badonnel, Prof. Sara Bouchenak, Dr. Gaël Thomas, and Dr. Laércio Lima Pilla

Zhiyuan.Yao@polytechnique.edu

Zahra Aghapour : Research Student

Zahra Aghapour

Research Student

Zahra Aghapour is a masters student in the Electrical Engineering Department of the Amirkabir University of Technology in Iran. Since the fourth semester of master, she has been working in the laboratory of École Polytechnique as an intern under the supervision of Dr. Jiazi YI. Her research was to study the Low-Power Wide-Area Networks(LPWAN). Her research interests include Distributed learning, Intelligence Algorithms, the Internet of Things, and LPWAN.

Haileleul Zeyede Haile : Research Student

Haileleul Zeyede Haile

Research Student

Haileleul Zeyede Haile was currently studying Electrical and Computer Engineering at Addis Ababa Institute of Technology in Addis Ababa, Ethiopia. He is an IoT and Cyber security enthusiast. He joined Ecole Polytechnique as an intern under the supervision of  Jiazi Yi to work on the "A study of Low-Power Wide-Area Networks (LPWAN) for Internet of Things", and he is currently a PhD student at the Institut Polytechnique de Paris..

Dr. Rim El Malki : Research Fellow

Dr. Rim El Malki

Research Fellow

Rim El Malki received her B.S. degree (with High Distinction) in Electrical and Computer Engineering (ECE) from the Rafik Hariri University (RHU), Lebanon, in 2013, and her M.S. degree in 2015. She was the recipient of the Academic Excellence Award at RHU in 2013 for ranking first on the graduating class. In September 2020, she received her Ph.D. degree from the American University of Beirut (AUB), Lebanon, Department of Electrical and Computer Engineering. During her Ph.D, she worked as a research and teaching assistant for several courses in the ECE department. As a Ph.D student, she was also a part of a two-year research collaboration with Iberdrola Innovation Middle East, Doha, Qatar. Since December 2020, Dr El Malki is PostDoctoral researcher at the Computer Science Laboratory of Ecole Polytechnique (LIX), Paris, France. She is working in collaboration with Cisco Systems on enhancing the security of microservices in distributed networks. Her research interests also include the areas of Information Security, Physical Layer Security, Cryptography, Wireless Communication Systems, Security in Distributed Networks and Internet of Things.

rim.el-malki@polytechnique.edu

Thomas Feltin : PhD Student

Thomas Feltin

PhD Student

After his studies at École Polytechnique (X15) where he followed the Network/Security track, Thomas Feltin completed his MSc in Advanced Computing at Imperial College London where he focused on data science and AI. His Master’s research focused on building a decentralized personal data management system leveraging the audibility properties of the blockchain technology.

Thomas completed his PhD under the joint supervision of Frank Brockners (Cisco) and Thomas Clausen (École polytechnique), and is now working for Cisco Systems, France

Dr. Feltin successfully defended his PhD on December 15, 2023, before a jury presided by professor François Trahay, and composed from prof. Giuliano Casale, prof.Adrien Lebre, prof. Stefano Secci, Dr. Adam Ouorou, prof.Cristel Pelsser, and prof Denis Trystram

Thomas.Feltin@polytechnique.edu

Alexandre Poirrier : PhD Student

Alexandre Poirrier

PhD Student

After his master in Computer Science (cybersecurity track) at Ecole polytechnique (X16), Alexandre Poirrier joined the corps de l'Armement, a technical Grand Corps of the French State. As part of his formation in the Corps de l'Armement, he completed a master in Computer Science at ETH Zürich. For his Master's research, he extended the Signal protocol to capture a broader and more realistic post-compromise security notion.
Alexandre was a PhD student as part of his formation in the Corps de l'Armement under the supervision of Thomas Clausen (Ecole polytechnique).

Dr. Poirrier successfully defended his PhD on September 30, 2024, before a jury presided by prof. Herve Debard, and with as members prof. Miguel Rio, prof. Romain Laborde, and Dr. Jeremy buisson.

Alexandre.Poirrier@polytechnique.org