34 citations · 46 across the 21 of their papers we have counts for
22 papers
Exact Payload-Decoupling Conditions for Pilot-Only BEM Channel Estimation With Application to OTFS
Gianmarco Romano, Francesco A. N. Palmieri, Stefano Buzzi +2
In high-mobility doubly dispersive links, basis expansion models (BEMs) reduce channel dimensionality, yet unknown payload symbols generally contaminate conventional matched-pilot…
Optimization of CF-mMIMO Systems for the Coexistence between eMBB+ and mMTC+: From Analytical to GNN-Aided Designs
Sergi Liesegang, Lou Salaün, Chung Shue Chen +1
This paper investigates uplink multiple access for the coexistence of enhanced mobile broadband+ (eMBB+) and massive machine-type communications+ (mMTC+) in terminal-centric cell-f…
Unsupervised Learning for Scalable Downlink Power Control in Cell-Free Massive MIMO
Giovanni Di Gennaro, Amedeo Buonanno, Gianmarco Romano +3
In cell-free massive multiple-input multiple-output systems, downlink power control is essential to ensure uniformly high service quality across users. Existing solutions range fro…
A Comparison Between Co-Located and Distributed MIMO Deployments in OFDM-ISAC Networks
Maryam Darabi, Sergi Liesegang, Emanuele Grossi +1
This paper investigates network-level integrated sensing and communication (ISAC) under two fundamentally different topology configurations: cell-free massive MIMO (CF-mMIMO) and m…
Joint Detection and Velocity Estimation in OFDM-ISAC Cell-Free Massive MIMO Networks
Maryam Darabi, Sergi Liesegang, Emanuele Grossi +1
This paper develops a sensing framework for cell-free massive MIMO (CF-mMIMO) networks operating under orthogonal frequency division multiplexing (OFDM)-based integrated sensing an…
User-Centric Cell-Free Massive MIMO Enhanced by Fluid-Antenna Access Points: Uplink Analysis
Maryam Olyaee, Giovanni Interdonato, Stefano Buzzi
In this paper, we investigate cell-free massive MIMO (CF-mMIMO) systems in which access points (APs) are equipped with fluid antennas (FAs) and develop a comprehensive framework fo…
EMF-Compliant Power Control in Cell-Free Massive MIMO: Model-Based and Data-Driven Approaches
Sergi Liesegang, Stefano Buzzi
The impressive growth of wireless data networks has recently led to increased attention to the issue of electromagnetic pollution and the fulfillment of electromagnetic field (EMF)…
Power Control Design for ISAC Optimization in User-Target-Centric Cell-Free mMIMO Networks
Sergi Liesegang, Stefano Buzzi
This paper addresses the power control design for a cell-free massive MIMO (CF-mMIMO) system that performs integrated sensing and communications (ISAC). Specifically, the case wher…
Differential Space-Time Block Coding for Phase-Unsynchronized Cell-Free MIMO Downlink
Marx M. M. Freitas, Giovanni Interdonato, Stefano Buzzi
In the downlink of CF-mMIMO systems, spectral efficiency gains critically rely on joint coherent transmission, as all APs must align their transmitted signals in phase at the UE. A…
Evaluating the Performance of Reconfigurable Intelligent Base Stations through Ray Tracing
Sina Beyraghi, Giovanni Interdonato, Giovanni Geraci +2
Massive multiple-input multiple-output (mMIMO) is a key capacity-boosting technology in 5G wireless systems. To reduce the number of radio frequency (RF) chains needed in such syst…
Joint Optimization of Uplink and Downlink Power in Full-Duplex Integrated Access and Backhaul
Giovanni Interdonato, Silvia Mura, Marouan Mizmizi +2
We examine the performance of an Integrated Access and Backhaul (IAB) node as a range extender for beyond-5G networks, focusing on the significant challenges of effective power all…
Scalable Integrated Sensing and Communications for Multi-Target Detection and Tracking in Cell-Free Massive MIMO: A Unified Framework
Sergi Liesegang, Stefano Buzzi, Carmen D'Andrea
This paper investigates a cell-free massive MIMO (multiple-input multiple-output) system where distributed access points (APs) perform integrated sensing and communications (ISAC)…
Eliminating Phase Misalignments in Cell-Free Massive MIMO via Differential Transmission
Marx M. M. Freitas, Stefano Buzzi, Giovanni Interdonato
This paper proposes two approaches for overcoming access points' phase misalignment effects in the downlink of cell-free massive MIMO (CF-mMIMO) systems. The first approach is base…
A General Framework for Scalable UE-AP Association in User-Centric Cell-Free Massive MIMO based on Recurrent Neural Networks
Giovanni Di Gennaro, Amedeo Buonanno, Gianmarco Romano +2
This study addresses the challenge of access point (AP) and user equipment (UE) association in cell-free massive MIMO networks. It introduces a deep learning algorithm leveraging B…
Sensing With Communication Signals: From Information Theory to Signal Processing
Fan Liu, Ya-Feng Liu, Yuanhao Cui +6
The Integrated Sensing and Communications (ISAC) paradigm is anticipated to be a cornerstone of the upcoming 6G networks. In order to optimize the use of wireless resources, 6G ISA…
On the Coexistence of eMBB and URLLC in the Cell-Free Massive MIMO Downlink
Giovanni Interdonato, Stefano Buzzi
We investigate the non-orthogonal coexistence between the ultra-reliable low-latency communication (URLLC) and the enhanced mobile broadband (eMBB) in the downlink of a cell-free m…
Coexistence of eMBB+ and mMTC+ in Uplink Cell-Free Massive MIMO Networks
Sergi Liesegang, Stefano Buzzi
This paper tackles the problem of designing proper uplink multiple access schemes for coexistence between enhanced mobile broadband+ (eMBB+) users and massive machine-type communic…
Co-existing/Cooperating Multicell Massive MIMO and Cell-Free Massive MIMO Deployments: Heuristic Designs and Performance Analysis
Stefano Buzzi, Carmen D'Andrea, Li Wang +2
Cell-free massive MIMO (CF-mMIMO) systems represent a deeply investigated evolution from the conventional multicell co-located massive MIMO (MC-mMIMO) network deployments. Anticipa…
Scalability and Implementation Aspects of Cell-Free Massive MIMO for ISAC
Stefano Buzzi, Carmen D'Andrea, Sergi Liesegang
This paper addresses the problem of scalability for a cell-free massive MIMO (CF-mMIMO) system that performs integrated sensing and communications (ISAC). Specifically, the case wh…
Energy Efficiency Optimization in Active Reconfigurable Intelligent Surface-Aided Integrated Sensing and Communication Systems
Junjie Ye, Mohamed Rihan, Peichang Zhang +3
Energy efficiency (EE) is a challenging task in integrated sensing and communication (ISAC) systems, where high spectral efficiency and low energy consumption appear as conflicting…
EMF-Aware Power Control for Massive MIMO: Cell-Free versus Cellular Networks
Sergi Liesegang, Stefano Buzzi
The impressive growth of wireless data networks has recently led to increased attention to the issue of electromagnetic pollution. Specific absorption rates and incident power dens…
Distributed MIMO for 6G sub-Networks in the Unlicensed Spectrum
Mohamed Elwekeil, Lorenzo Galati Giordano, Paolo Baracca +1
In this paper, we consider the sixth generation (6G) sub-networks, where hyper reliable low latency communications (HRLLC) requirements are expected to be met. We focus on a scenar…