6 citations · 12 across the 13 of their papers we have counts for
15 papers
A Transformer for Joint Multi-Receiver Pilotless Wi-Fi Decoding
Xavier Tardy, Grégoire Lefebvre, Apostolos Kountouris +2
In this paper we discuss the development of a fully pilotless multi-access-point Wi-Fi receiver. This is based on a self-attention Transformer that operates on per-(access point, s…
Phase Uniformity Detector for GRSMReceivers in mmWave and Sub-THz Bands
Oshin Daoud, Haifa Fares, Yahia Medjahdi +2
This paper introduces a phase-domain statistical detector, the Phase Uniformity Detector (PUD), for binary hypothesis testing in Generalized Receive Spatial Modulation (GRSM) syste…
Exploiting Spatial Modulation for Strong PhaseNoise Mitigation in mmWave Massive MIMO
Oshin Daoud, Haifa Fares, Amor Nafkha +2
This letter investigates phase noise (PN) mitigation in generalized receiver spatial modulation (GRSM) massive MIMO systems at mmWave under a common local oscillator (CLO). Under C…
Scalable Cross-Attention Transformer for Cooperative Multi-AP OFDM Uplink Reception
Xavier Tardy, Grégoire Lefebvre, Apostolos Kountouris +2
We propose a cross-attention Transformer for joint decoding of uplink OFDM signals received by multiple coordinated access points. A shared per-receiver encoder learns the time-fre…
Multi-Screaming-Channel Attacks: Frequency Diversity for Enhanced Attacks
Jeremy Guillaume, Maxime Pelcat, Amor Nafkha +1
Side-channel attacks consist of retrieving internal data from a victim system by analyzing its leakage, which usually requires proximity to the victim in the range of a few millime…
Federated Learning for Secure and Efficient Device Activity Detection in mMTC Networks
Ali Elkeshawy, Ibrahim Al Ghosh, Haifa Fares +1
Grant-free random access in massive machine-type communications enables low-latency connectivity with minimal signaling. However, sporadic device activation requires efficient devi…
Robust Learning-Based Sparse Recovery for Device Activity Detection in Grant-Free Random Access Cell-Free Massive MIMO: Enhancing Resilience to Impairments
Ali Elkeshawy, Haifa Fares, Amor Nafkha
Massive MIMO is considered a key enabler to support massive machine-type communication (mMTC). While massive access schemes have been extensively analyzed for co-located massive MI…
Lightweight Learning for Grant-Free Activity Detection in Cell-Free Massive MIMO Networks
Ali Elkeshawy, Haifa Fares, Amor Nafkha
Grant-free random access (GF-RA) is a promising access technique for massive machine-type communications (mMTC) in future wireless networks, particularly in the context of 5G and b…
Deep Learning-Based Approach for User Activity Detection with Grant-Free Random Access in Cell-Free Massive MIMO
Ali Elkeshawy, HaÏfa Farès, Amor Nafkha
Modern wireless networks must reliably support a wide array of connectivity demands, encompassing various user needs across diverse scenarios. Machine-Type Communication (mMTC) is…
Attacking at non-harmonic frequencies in screaming-channel attacks
Jeremy Guillaume, Maxime Pelcat, Amor Nafkha +1
Screaming-channel attacks enable Electromagnetic (EM) Side-Channel Attacks (SCAs) at larger distances due to higher EM leakage energies than traditional SCAs, relaxing the requirem…
Virtual Triggering: a Technique to Segment Cryptographic Processes in Side Channel Traces
Jeremy Guillaume, Maxime Pelcat, Amor Nafkha +1
Side-Channel Attacks (SCAs) exploit data correla-tion in signals leaked from devices to jeopardize confidentiality. Locating and synchronizing segments of interest in traces from C…
Upper and Lower Bounds for the Ergodic Capacity of MIMO Jacobi Fading Channels
Amor Nafkha, Remi Bonnefoi
In multi-(core/mode) optical fiber communication, the transmission channel can be modeled as a complex sub-matrix of the Haar-distributed unitary matrix (complex Jacobi unitary ens…
Accurate Measurement of Power Consumption Overhead During FPGA Dynamic Partial Reconfiguration
Amor Nafkha, Yves Louet
In the context of embedded systems design, two important challenges are still under investigation. First, improve real-time data processing, reconfigurability, scalability, and sel…
New Lower Bound on the Ergodic Capacity of Optical MIMO Channels
Rémi Bonnefoi, Amor Nafkha
In this paper, we present an analytical lower bound on the ergodic capacity of optical multiple-input multiple-output (MIMO) channels. It turns out that the optical MIMO channel ma…
Closed-Form Expressions of Ergodic Capacity and MMSE Achievable Sum Rate for MIMO Jacobi and Rayleigh Fading Channels
Amor Nafkha, Nizar Demni
Multimode/multicore fibers are expected to provide an attractive solution to overcome the capacity limit of the current optical communication system. In the presence of high cross-…