Zobrazeno 1 - 10
of 1 721
pro vyhledávání: '"Demo, P."'
Autor:
Pereira, Felippe Moraes, Farhat, Jamil de Araujo, Rebelatto, João Luiz, Brante, Glauber, Souza, Richard Demo
In this paper, we investigate the age-of-information (AoI) of a power domain non-orthogonal multiple access (NOMA) network, where multiple internet-of-things (IoT) devices transmit to a common gateway in a grant-free random fashion. More specifically
Externí odkaz:
http://arxiv.org/abs/2410.03398
Autor:
Farhat, Jamil de Araujo, Sant'Ana, Jean Michel de Souza, Rebelatto, João Luiz, Mahmood, Nurul Huda, Pasolini, Gianni, Souza, Richard Demo
We evaluate the performance of the LoRaWAN Long-Range Frequency Hopping Spread Spectrum (LR-FHSS) technique using a device-level probabilistic strategy for code rate and header replica allocation. Specifically, we investigate the effects of different
Externí odkaz:
http://arxiv.org/abs/2410.03392
Autor:
Tominaga, Eduardo Noboro, López, Onel Luis Alcaraz, Svensson, Tommy, Souza, Richard Demo, Alves, Hirley
Contemporary wireless communications systems adopt the Multi-User Multiple-Input Multiple-Output (MU-MIMO) technique: a single base station or Access Point (AP) equipped with multiple antenna elements serves multiple active users simultaneously. Aimi
Externí odkaz:
http://arxiv.org/abs/2410.07159
Autor:
Tondo, Felipe Augusto, Sant'Ana, Jean Michel de Souza, Montejo-Sánchez, Samuel, López, Onel Luis Alcaraz, Céspedes, Sandra, Souza, Richard Demo
Direct-to-Satellite IoT (DtS-IoT) has the potential to support multiple verticals, including agriculture, industry, smart cities, and environmental disaster prevention. This work introduces two novel DtS-IoT schemes using power domain NonOrthogonal M
Externí odkaz:
http://arxiv.org/abs/2409.02748
Autor:
Tominaga, Eduardo Noboro, López, Onel Luis Alcaraz, Svensson, Tommy, Souza, Richard Demo, Alves, Hirley
Most works evaluating the performance of Multi-User Multiple-Input Multiple-Output (MU-MIMO) systems consider Access Points (APs) with fixed antennas, that is, without any movement capability. Recently, the idea of APs with antenna arrays that are ab
Externí odkaz:
http://arxiv.org/abs/2408.08112
The Sparse Identification of Nonlinear Dynamics (SINDy) framework is a robust method for identifying governing equations, successfully applied to ordinary, partial, and stochastic differential equations. In this work we extend SINDy to identify delay
Externí odkaz:
http://arxiv.org/abs/2407.19640
Advection-dominated problems are commonly noticed in nature, engineering systems, and a wide range of industrial processes. For these problems, linear approximation methods (proper orthogonal decomposition and reduced basis method) are not suitable,
Externí odkaz:
http://arxiv.org/abs/2407.18419
Autor:
Tominaga, Eduardo Noboro, López, Onel Luis Alcaraz, Svensson, Tommy, Souza, Richard Demo, Alves, Hirley
The Fifth-Generation (5G) wireless communications networks introduced native support for Machine-Type Communications (MTC) use cases. Nevertheless, current 5G networks cannot fully meet the very stringent requirements regarding latency, reliability,
Externí odkaz:
http://arxiv.org/abs/2406.19078
This work presents the LR-FHSS-Sim, a free and open-source discrete-event simulator for LR-FHSS networks. We highlight the importance of network modeling for IoT coverage, especially when it is needed to capture dynamic network behaviors. Written in
Externí odkaz:
http://arxiv.org/abs/2404.09539
Numerical simulations of turbulent flows are well known to pose extreme computational challenges due to the huge number of dynamical degrees of freedom required to correctly describe the complex multi-scale statistical correlations of the velocity. O
Externí odkaz:
http://arxiv.org/abs/2403.18466