9 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…
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…
Performance vs. Spectral Properties For Single-Sideband Continuous Phase Modulation
Karim Kassan, Haïfa Farès, D. Christian Glattli +1
This study revokes the performance of continuous phase modulation (CPM) able to generate a single-sideband (SSB) spectrum directly. This signal is analyzed in terms of modulation i…