50 citations · 371 across the 33 of their papers we have counts for
23 papers · 1 filter
Age-of-Information Dependent Random Access in NOMA-Aided Multiple-Relay Slotted ALOHA
Gabriel Germino Martins de Jesus, João Luiz Rebelatto, Richard Demo Souza +1
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 I…
Performance Analysis of Centralized and Distributed Massive MIMO for MTC
Eduardo Noboro Tominaga, Onel Luiz Alcaraz López, Hirley Alves +2
Massive Multiple-Input Multiple-Output (mMIMO) is one of the essential technologies introduced by the Fifth Generation (5G) of wireless communication systems. However, although mMI…
Coordinated Pilot Transmissions for Detecting the Signal Sparsity Level in a Massive IoT Network under Rayleigh Fading
Onel L. A. López, Glauber Brante, Richard D. Souza +2
Grant-free protocols exploiting compressed sensing (CS) multi-user detection (MUD) are appealing for solving the random access problem in massive machine-type communications (mMTC)…
Exploring the Non-Overlapping Visibility Regions in XL-MIMO Random Access Protocol
José Carlos Marinello Filho, Glauber Brante, Richard Demo Souza +1
The recent extra-large scale massive multiple-input multiple-output (XL-MIMO) systems are seen as a promising technology for providing very high data rates in increased user-densit…
Network-Coded Cooperative LoRa Network with D2D Communication
L. H. O. Alves, J. L. Rebelatto, R. D. Souza +1
We evaluate the outage probability and the energy efficiency (EE) of a LoRa network when the end-devices (EDs) are capable of exchanging messages with a device-to-device (D2D) tech…
Massive MIMO with Radio Stripes for Indoor Wireless Energy Transfer
Onel L. A. López, Dileep Kumar, Richard Demo Souza +3
Radio frequency wireless energy transfer (WET) is a promising solution for powering autonomous Internet of Things (IoT) deployments. In this work, we leverage energy beamforming fo…