Zobrazeno 1 - 10
of 427
pro vyhledávání: '"Souza, Richard Demo"'
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
Multi-User Multiple-Input Multiple-Output (MU-MIMO) is a pivotal technology in present-day wireless communication systems. In such systems, a base station or Access Point (AP) is equipped with multiple antenna elements and serves multiple active devi
Externí odkaz:
http://arxiv.org/abs/2408.08112
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
Autor:
de Jesus, Gabriel Martins, Lopez, Onel Luis Alcaraz, Souza, Richard Demo, Mahmood, Nurul Huda, Juntti, Markku, Latva-Aho, Matti
Wireless communication systems must increasingly support a multitude of machine-type communications (MTC) devices, thus calling for advanced strategies for active user detection (AUD). Recent literature has delved into AUD techniques based on compres
Externí odkaz:
http://arxiv.org/abs/2402.05687
Autor:
Tominaga, Eduardo Noboro, López, Onel Luis Alcaraz, Svensson, Tommy, Souza, Richard Demo, Alves, Hirley
Contemporary wireless communication systems rely on Multi-User Multiple-Input Multiple-Output (MU-MIMO) techniques. In such systems, each Access Point (AP) is equipped with multiple antenna elements and serves multiple devices simultaneously. Notably
Externí odkaz:
http://arxiv.org/abs/2402.05583
Distributed learning on edge devices has attracted increased attention with the advent of federated learning (FL). Notably, edge devices often have limited battery and heterogeneous energy availability, while multiple rounds are required in FL for co
Externí odkaz:
http://arxiv.org/abs/2309.06033
Autor:
Tominaga, Eduardo Noboro, Su, Hsuan-Jung, Du, Jinfeng, Venkatesan, Sivarama, Souza, Richard Demo, Alves, Hirley
Industry and academia have been working towards the evolution from Centralized massive Multiple-Input Multiple-Output (CmMIMO) to Distributed mMIMO (DmMIMO) architectures. Instead of splitting a coverage area into many cells, each served by a single
Externí odkaz:
http://arxiv.org/abs/2309.04975
Autor:
de Jesus, Gabriel Germino Martins, Rebelatto, João Luiz, Souza, Richard Demo, López, Onel Luis Alcaraz
We propose and evaluate the performance of a Non-Orthogonal Multiple Access (NOMA) dual-hop multiple relay (MR) network from an information freshness perspective using the Age of Information (AoI) metric. More specifically, we consider an age depende
Externí odkaz:
http://arxiv.org/abs/2304.08973
Autor:
Tominaga, Eduardo Noboro, López, Onel Luiz Alcaraz, Alves, Hirley, Souza, Richard Demo, Terças, Leonardo
Massive Multiple-Input Multiple-Output (mMIMO) is one of the essential technologies introduced by the Fifth Generation (5G) of wireless communication systems. However, although mMIMO provides many benefits for wireless communications, it cannot ensur
Externí odkaz:
http://arxiv.org/abs/2304.05451