9 papers
Leaving the Hall: explicit formulas for Neguţ operators
Michele D'Adderio, Giovanni Interdonato, Alessandro Iraci +1
Recent major breakthroughs in -combinatorics include the introduction of the Dyck path algebra by Carlsson and Mellit and of the Catalanimals by Blasiak et…
Deep Learning-Assisted Multicast Subgrouping in Massive MIMO
Alejandro de la Fuente, Leopoldo Carro-Calvo, Giovanni Interdonato
Efficient content delivery in massive multiple-input multiple-output (mMIMO) multicasting is fundamentally limited by pilot overhead and the need to serve heterogeneous users with…
Generalizing Eulerian Numbers via Semipermutations: Topological and Combinatorial Aspects
Giovanni Gaiffi, Giovanni Interdonato
In a paper by Lin an interesting family of semipermutations comes out to index the elements of a cohomology basis of a Hessenberg type variety. The corresponding Betti numbers are…
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…
Differential Space-Time Block Coding for Phase-Unsynchronized Cell-Free MIMO Downlink
Marx M. M. Freitas, Giovanni Interdonato, Stefano Buzzi
In the downlink of a cell-free massive multiple-input multiple-output (CF-mMIMO) system, spectral efficiency gains critically rely on joint coherent transmission, as all access poi…
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…