Tootfinder

Auto Tuning for OpenMP Dynamic Scheduling applied to FWI
Felipe H. S. da Silva, Jo\~ao B. Fernandes, Idalmis M. Sardina, Tiago Barros, Samuel Xavier-de-Souza, Italo A. S. Assis
https://arxiv.org/abs/2402.16728

Auto Tuning for OpenMP Dynamic Scheduling applied to FWI
Because Full Waveform Inversion (FWI) works with a massive amount of data, its execution requires much time and computational resources, being restricted to large-scale computer systems such as supercomputers. Techniques such as FWI adapt well to parallel computing and can be parallelized in shared memory systems using the application programming interface (API) OpenMP. The management of parallel tasks can be performed through loop schedulers contained in OpenMP. The dynamic scheduler stands ou…

Elevating Software Quality in Agile Environments: The Role of Testing Professionals in Unit Testing
Lucas Neves, Oscar Campos, Robson Santos, Italo Santos, Cleyton Magalhaes, Ronnie de Souza Santos
https://arxiv.org/abs/2403.13220

Elevating Software Quality in Agile Environments: The Role of Testing Professionals in Unit Testing
Testing is an essential quality activity in the software development process. Usually, a software system is tested on several levels, starting with unit testing that checks the smallest parts of the code until acceptance testing, which is focused on the validations with the end-user. Historically, unit testing has been the domain of developers, who are responsible for ensuring the accuracy of their code. However, in agile environments, testing professionals play an integral role in various qual…

Elevating Software Quality in Agile Environments: The Role of Testing Professionals in Unit Testing
Lucas Neves, Oscar Campos, Robson Santos, Italo Santos, Cleyton Magalhaes, Ronnie de Souza Santos
https://arxiv.org/abs/2403.13220

Elevating Software Quality in Agile Environments: The Role of Testing Professionals in Unit Testing
Testing is an essential quality activity in the software development process. Usually, a software system is tested on several levels, starting with unit testing that checks the smallest parts of the code until acceptance testing, which is focused on the validations with the end-user. Historically, unit testing has been the domain of developers, who are responsible for ensuring the accuracy of their code. However, in agile environments, testing professionals play an integral role in various qual…

Network-Controlled Repeater -- An Introduction
Fco. Italo G. Carvalho, Raul Victor de O. Paiva, Tarcisio F. Maciel, Victor F. Monteiro, Fco. Rafael M. Lima, Darlan C. Moreira, Diego A. Sousa, Behrooz Makki, Magnus Astrom, Lei Bao
https://arxiv.org/abs/2403.09601

Network-Controlled Repeater -- An Introduction
In fifth generation (5G) wireless cellular networks, millimeter wave spectrum opens room for several potential improvements in throughput, reliability, latency, among other aspects. However, it also brings challenges, such as a higher influence of blockage which may significantly limit the coverage. In this context, network-controlled repeaters (NCRs) are network nodes with low complexity that represent a technique to overcome coverage problems. In this paper, we introduce the NCR concept and s…

On the Optimal MMSE Channel Estimation for One-Bit Quantized MIMO Systems
Minhua Ding, Italo Atzeni, Antti T\"olli, A. Lee Swindlehurst
https://arxiv.org/abs/2404.05536

On the Optimal MMSE Channel Estimation for One-Bit Quantized MIMO Systems
This paper focuses on the minimum mean squared error (MMSE) channel estimator for multiple-input multiple-output (MIMO) systems with one-bit quantization at the receiver side. Despite its optimality and significance in estimation theory, the MMSE channel estimator has not been fully investigated in this context due to its general non-linearity and computational complexity. Instead, the typically suboptimal Bussgang linear MMSE (BLMMSE) estimator has been widely adopted. In this work, we develop…

Combined DL-UL Distributed Beamforming Design for Cell-Free Massive MIMO
Bikshapathi Gouda, Antti Arvola, Italo Atzeni, Antti T\"olli
https://arxiv.org/abs/2404.03285

Combined DL-UL Distributed Beamforming Design for Cell-Free Massive MIMO
We consider a cell-free massive multiple-input multiple-output system with multi-antenna access points (APs) and user equipments (UEs), where the UEs can be served in both the downlink (DL) and uplink (UL) within a resource block. We tackle the combined optimization of the DL precoders and combiners at the APs and DL UEs, respectively, together with the UL combiners and precoders at the APs and UL UEs, respectively. To this end, we propose distributed beamforming designs enabled by iterative bi…