5 papers
Mixed Coherent and Non-Coherent Transmission for Multi-CPU Cell-Free Systems
Roberto P. Antonioli, Iran M. Braga, Gabor Fodor +2
Existing works on cell-free systems consider either coherent or non-coherent downlink data transmission and a network deployment with a single central processing unit (CPU). While…
A Distributed Game-Theoretic Solution for Power Management in the Uplink of Cell-Free Systems
Juno V. Saraiva, Roberto P. Antonioli, Gábor Fodor +2
This paper investigates cell-free massive multiple input multiple output systems with a particular focus on uplink power allocation. In these systems, uplink power control is highl…
Efficient Battery Usage in Wireless-Powered Cell-Free Systems with Self-Energy Recycling
Iran M. Braga, Roberto P. Antonioli, Gabor Fodor +2
This paper investigates wireless-powered cell-free systems, in which the users send their uplink data signal while simultaneously harvesting energy from network nodes and user term…
Joint Resource Allocation and Transceiver Design for Sum-Rate Maximization under Latency Constraints in Multicell MU-MIMO Systems
Iran M. Braga, Roberto P. Antonioli, Gabor Fodor +3
Due to the continuous advancements of orthogonal frequency division multiplexing (OFDM) and multiple antenna techniques, multiuser multiple input multiple output (MU-MIMO) OFDM is…
Deep Reinforcement Learning for QoS-Constrained Resource Allocation in Multiservice Networks
Juno V. Saraiva, Iran M. Braga, Victor F. Monteiro +4
In this article, we study a Radio Resource Allocation (RRA) that was formulated as a non-convex optimization problem whose main aim is to maximize the spectral efficiency subject t…