Information · Computation · Communication
Ali Khalesi is an Assistant Professor at IPSA on a permanent contract (CDI) in Ivry-sur-Seine, France, where I am a member of the Signal, Télécommunications & Intelligence Artificielle (STIA). I am also an invited researcher at LINCS Lab. My current research focuses mainly on satellite communications and drone swarm orchestration, alongside broader interests in information theory, coding theory, distributed computing, and communication systems.
I received my PhD from Sorbonne University in July 2024, carrying out my research at EURECOM under the supervision of Prof. Petros Elia. My thesis, Multi-User Linearly-Decomposable Distributed Computing, investigates the fundamental computation–communication trade-offs in multi-user systems.
Distinctions
Curriculum vitae
Teaching and research in information theory, coding, distributed algorithms, satellite communications, and signal processing. Supervision of undergraduate and master’s students, development of course materials, and interdisciplinary collaboration.
Supervisor: Prof. Petros Elia.
Research on the fundamental limits of distributed computing, coding frameworks, resource allocation, and multi-user privacy protocols; student mentoring and scientific publication.
Multi-user distributed computing, communication efficiency, and fault tolerance.
Sorbonne University · EURECOM
EDITE de Paris doctoral school (ED 130).
Thesis: Multi-User Linearly-Decomposable Distributed Computing.
PhD supervisor: Prof. Petros Elia.
Michèle Wigger (chair and reviewer), B. Sundar Rajan (reviewer), Giuseppe Caire, Daniela Tuninetti, Derya Malak, Konstantin Avrachenkov, and Petros Elia (supervisor).
Sharif University of Technology, Tehran, Iran.
Thesis: Design and Analysis of Algorithms for Private Function Retrieval.
Master’s supervisors: Prof. Mohammad-Ali Maddah-Ali and Prof. Mahtab Mirmohseni.
GPA: 18.96/20 · Ranked second, December 2020.
K. N. Toosi University of Technology, Tehran, Iran.
Thesis: Investigation and Simulation of LDPC Code Applications in the Gaussian Wiretap Channel.
Supervisor: Dr. Bahareh Akhbari.
GPA: 19.16/20 · Final-semester GPA: 19.61/20.
Ranked first among 125 students, July 2018.
2026: Qualified by the French CNU for Maître de conférences recruitment in sections 27 and 61.
Research output
Journal articles, conference contributions, and preprints.
A. Khalesi and F. Baccelli
A. Khalesi
A. Khalesi and P. Elia
A. Khalesi and M. R. Deylam Salehi
A. Khalesi and Mohammad Reza Deylam Salehi
A. Khalesi and P. Elia
A. Khalesi and P. Elia
A. Khalesi, M. Mirmohseni, and M. A. Maddah-Ali
A. Khalesi, A. Tanha, D. Malak, and P. Elia
A. Khalesi and R. Bitar
A. M. Jafarpisheh, A. Khalesi, and P. Elia
A. Khalesi and P. Elia
A. Khalesi, S. Daei, M. Kountouris, and P. Elia
A. Khalesi and P. Elia
A. Tanha and A. Khalesi
Contribution: Proposes a finite-state uncertainty-aware widely-linear GMSK equalizer; a 16-state bank reduces pseudo-symbol MSE by 51.9% versus point-estimate WLTV-MMSE at 8 dB while avoiding repeated online filter synthesis.
A. Khalesi, R. Bitar, and F. Baccelli
Contribution: Characterizes reliability, Θ(log n) dissemination delay, and communication cost for age-regulated self-regulating random walks.
A. Tanha and A. Khalesi
Contribution: Derives exact finite-response MSE and an adaptive balanced decoder that improves partial-response accuracy while preserving exact completion.
A. El Ati, A. Khalesi, and A. Sassi
Contribution: Derives the exact phase-locking threshold and transverse stability boundary for heterogeneous Josephson-junction arrays with nonsymmetric rank-one coupling.
A. Tanha and A. Khalesi
A. Khalesi
Education & mentoring
Lectures, tutorials, laboratory sessions, assessment design, and research-based projects across telecommunications, signal processing, and distributed learning.
Entropy, mutual information, lossless source coding, Huffman coding, channel capacity, and Gaussian channels.
Research seminar on distributed learning and computation for aeronautics: critical reading, research methodology, technical reports, and presentations.
Fourier analysis, sampling, DFT/FFT, Z-transform, and analog and digital filter design using MATLAB.
Aeronautical and space communication equipment, antennas, propagation, link budgets, and radar principles.
Random signals, analog and digital modulation, noise, matched filtering, receiver performance, and link budgets.
Algorithm design, MATLAB simulation of GPS signals, satellite communications, and performance evaluation.
Electrostatic fields, Gauss’s law, capacitors, exercises, and examination preparation.
10–11 October 2025 · CNES / IPSA Paris. Supported student teams developing LEO satellite communication infrastructure for real-time video, with a focus on cybersecurity, distributed processing, and ground/space system modeling.
Scientific community
Tools & interests
Milestones
Our paper Low-Latency Coded Tensor–Matrix Multiplication for Distributed Signal Processing Systems, coauthored with Ahmad Tanha, will be presented at the IEEE International Workshop on Signal Processing Systems (SiPS 2026), Bordeaux, France, 2–4 November 2026. The talk shows how preserving tensor axes enables axis-wise decoding with substantially lower modeled reconstruction work while keeping the same-sized local worker products. Presentation slides ↗
Our new preprint Finite-State Uncertainty-Aware Widely-Linear Equalization for Aeronautical GMSK Links, with Ahmad Tanha, is now available on arXiv. The work develops a finite-state uncertainty-aware receiver for aeronautical GMSK links, using precomputed conditional-moment filters to improve robustness to synchronization uncertainty while substantially reducing online adaptation cost.
I presented Beyond coverage: how mega-constellations will shape the future of non-terrestrial networks at NTN Days 2026, Cnam, Paris. The talk showed why satellite densification cannot be separated from interference management: serving-link gains eventually saturate while co-channel interference keeps growing, so beam coordination, scheduling, and frequency reuse must scale with constellation density. Slides ↗ · Video ↗
Three new preprints are available: Epidemic Analysis of Self-Regulating Random Walks (reliability, delay, and communication cost of age-regulated dissemination); Walsh-Hadamard Coded Matrix Multiplication (exact anytime error and adaptive completion); and Synchronization Threshold and Stability of Heterogeneous Josephson-Junction Arrays with Nonsymmetric Weighted Coupling (exact synchronization threshold and stability characterization for heterogeneous Josephson-junction arrays).
Our paper Densification Converses for Walker Constellations, with François Baccelli, has been published in IEEE Transactions on Wireless Communications. The work establishes fundamental densification limits for Walker LEO constellations: adding satellites initially improves the desired link through shorter serving distances, but beyond the useful densification regime, aggregate interference becomes the dominant limitation. The resulting converse bounds and frequency-reuse scaling laws provide design guidance for future mega-constellations and motivate stronger beamforming, scheduling, and spectrum-management techniques. Published article ↗ · arXiv ↗
Ahmad Tanha joined my group as a postdoctoral researcher under my supervision, working on coded distributed computing and low-latency signal processing systems.
Hyper-Minrank: A Unified Hypergraph Characterization of Multi-Sender Index Coding, with Petros Elia, published in IEEE Transactions on Information Theory.
Three contributions accepted at IEEE ISIT 2026, on non-linearly separable distributed computing, decentralized self-regulating random walks, and secure multi-user computation.
Obtained CNU qualification in sections 27 and 61.
Technical coaching at the CNES Défi InSpace hackathon with IPSA.
Doctoral thesis selected as a finalist for the Prix solennels de la Chancellerie de Paris.
Awarded second prize in the EDITE de Paris doctoral thesis competition.
Defended my PhD at EURECOM and received my doctorate from Sorbonne University.
Get in touch
If you are interested in my research, teaching, or potential collaboration, please contact me at Ali.Khalesi@ipsa.fr.
IPSA · Ivry-sur-Seine · France
Prof. Petros Elia · Prof. Mohammad-Ali Maddah-Ali · Prof. Mahtab Mirmohseni · Prof. Marios Kountouris · Prof. François Baccelli.