96 citations · 316 across the 42 of their papers we have counts for
22 papers · 1 filter
Minimum-Latency Scheduling For Partial-Information Multiple Access Schemes
Alberto Rech, Stefano Tomasin, Lorenzo Vangelista +1
Partial-information multiple access (PIMA) is an orthogonal multiple access (OMA) uplink scheme where time is divided into frames, each composed of two parts. The first part is use…
Semi-Grant-Free Orthogonal Multiple Access with Partial-Information for Short Packet Transmissions
Alberto Rech, Stefano Tomasin, Lorenzo Vangelista +1
Next-generation internet-of-things (IoT) networks require extremely low latency, complexity, and collision probability. We introduce the novel partial-information multiple access (…
Estimation of Interference Correlation in mmWave Cellular Systems
Stefano Tomasin, Raphael Hasler, Antonia M. Tulino +1
We consider a cellular network, where the uplink transmissions to a base station (BS) are interferenced by other devices, a condition that may occur, e.g., in cell-free networks or…
Intelligent Reflecting Surfaces Assisted Millimeter Wave MIMO Full Duplex Systems
Chandan Kumar Sheemar, Stefano Tomasin, Dirk Slock +1
Full duplex (FD) systems suffer from very high hardware cost and high power consumption to mitigate the self-interference (SI) in the analog domain. Moreover, in millimeter wave (m…
Localization Attack by Precoder Feedback Overhearing in 5G Networks and Countermeasures
Stefan Roth, Stefano Tomasin, Marco Maso +1
In fifth-generation (5G) cellular networks, users feed back to the base station the index of the precoder (from a codebook) to be used for downlink transmission. The precoder is st…
Resource Allocation for Secure Gaussian Parallel Relay Channels with Finite-Length Coding and Discrete Constellations
Linda Senigagliesi, Marco Baldi, Stefano Tomasin
We investigate the transmission of a secret message from Alice to Bob in the presence of an eavesdropper (Eve) and many of decode-and-forward relay nodes. Each link comprises a set…
Centralized and Distributed Sparsification for Low-Complexity Message Passing Algorithm in C-RAN Architectures
Alessandro Brighente, Stefano Tomasin
Cloud radio access network (C-RAN) is a promising technology for fifth-generation (5G) cellular systems. However the burden imposed by the huge amount of data to be collected (in t…
Beamforming and Scheduling for mmWave Downlink Sparse Virtual Channels With Non-Orthogonal and Orthogonal Multiple Access
Alessandro Brighente, Stefano Tomasin
We consider the problem of scheduling and power allocation for the downlink of a 5G cellular system operating in the millimeter wave (mmWave) band and serving two sets of users: fi…
Comparison Between Asymmetric and Symmetric Channel-Based Authentication for MIMO Systems
Stefano Tomasin
Authentication is a key element of security, by which a receiver confirms the sender identity of a message. Typical approaches include either key-based authentication at the applic…
Analysis of Channel-Based User Authentication by Key-Less and Key-Based Approaches
Stefano Tomasin
User authentication (UA) supports the receiver in deciding whether a message comes from the claimed transmitter or from an impersonating attacker. In cryptographic approaches messa…
A Multi-Service Oriented Multiple-Access Scheme For M2M Support in Future LTE
Nassar Ksairi, Stefano Tomasin, Mérouane Debbah
We propose a novel multiple-access technique to overcome the shortcomings of the current proposals for the future releases of Long-Term Evolution (LTE). We provide a unified radio…
Pilot Contamination Attack Detection by Key-Confirmation in Secure MIMO Systems
Stefano Tomasin, Ingmar Land, Frédéric Gabry
Many security techniques working at the physical layer need a correct channel state information (CSI) at the transmitter, especially when devices are equipped with multiple antenna…
Secure Compute-and-Forward Transmission With Artificial Noise and Full-Duplex Devices
Stefano Tomasin
We consider a wiretap channel with an eavesdropper (Eve) and an honest but curious relay (Ray). Ray and the destination (Bob) are full-duplex (FD) devices. Since we aim at not reve…
Design of MLSD-Based Receivers for Short-Range Optical Communications Using the Volterra Expansion
Raquel G. Machado, Beatrice Tomasi, Hartmut Hafermann +1
Maximum Likelihood Sequence Detectors (MLSD) have been largely used to mitigate the Chromatic Dispersion (CD) in Intensity Modulation/Direct Detection (IM/DD) optical communication…
Pilot Pattern Adaptation for 5G MU-MIMO Wireless Communications
Nassar Ksairi, Beatrice Tomasi, Stefano Tomasin
To meet the goal of ten-fold increase in spectral efficiency, multiuser multiple-input-multiple-output (MU-MIMO) techniques capable of achieving high spatial multiplexing gains are…
A Multi-Service Oriented Multiple-Access Scheme for Next-Generation Mobile Networks
Nassar Ksairi, Stefano Tomasin, Mérouane Debbah
One of the key requirements for fifth-generation (5G) cellular networks is their ability to handle densely connected devices with different quality of service (QoS) requirements. I…
Achievable Secrecy Rates over MIMOME Gaussian Channels with GMM Signals in Low-Noise Regime
Francesco Renna, Nicola Laurenti, Stefano Tomasin
We consider a wiretap multiple-input multiple-output multiple-eavesdropper (MIMOME) channel, where agent Alice aims at transmitting a secret message to agent Bob, while leaking no…
Parallel BCC with One Common and Two Confidential Messages and Imperfect CSIT
Ahmed Benfarah, Stefano Tomasin, Nicola Laurenti
We consider a broadcast communication system over parallel sub-channels where the transmitter sends three messages: a common message to two users, and two confidential messages to…
Secrecy Transmission on Block Fading Channels: Theoretical Limits and Performance of Practical Codes
Marco Baldi, Marco Bianchi, Franco Chiaraluce +3
We consider a system where an agent (Alice) aims at transmitting a message to a second agent (Bob) over a set of parallel channels, while keeping it secret from a third agent (Eve)…
On the Achievable Error Region of Physical Layer Authentication Techniques over Rayleigh Fading Channels
Augusto Ferrante, Nicola Laurenti, Chiara Masiero +2
For a physical layer message authentication procedure based on the comparison of channel estimates obtained from the received messages, we focus on an outer bound on the type I/II…
Low-power Secret-key Agreement over OFDM
Francesco Renna, Nicola Laurenti, Stefano Tomasin +5
Information-theoretic secret-key agreement is perhaps the most practically feasible mechanism that provides unconditional security at the physical layer to date. In this paper, we…
LLR Compression for BICM Systems Using Large Constellations
Stefano Rosati, Stefano Tomasin, Matteo Butussi +1
Digital video broadcasting (DVB-C2) and other modern communication standards increase diversity by means of a symbol-level interleaver that spans over several codewords. De-interle…