XLI Simpósio Brasileiro de Telecomunicações e Processamento de Sinais

In this paper, we present a singular value decomposition (SVD)-based rank-one approximation algorithm to estimate simultaneously each symbol matrix of the multiple Khatri-Rao product-based space time (MKRST) coding. We modeled such estimation problem in a multiple input multiple output (MIMO) space-time coding scenario. As shown in our simulation...

In this work, we study the inter- and intra-slice scheduling of the Industry 4.0 scenario considering three services available: enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency Communication (URLLC), and Massive Machine Type Communication (mMTC). In this context, we proposed inter-slice scheduling with Ultra-Reliable Low-Latency Communication...

This research project aims to develop a novel tool to assist children with Autism Spectrum Disorder (ASD) in enhancing their visual contact abilities. The proposed methodology employs digital image processing techniques and machine learning algorithms to create an interface capable of iris displacement recognition and detection. By identifying the user's...

Multi-access Edge Computing (MEC) extends cloud computing to the network's edge, placing MEC servers closer to End Devices (EDs). This paradigm aims to respond locally to computing tasks, reducing the routed data to the core network and the communication latency. Nevertheless, offloaded task requests may congest MEC servers and incur increased waiting...

Heterogeneous networks have been studied as one of the enablers of network densification. These studies have been intensified to overcome some drawbacks related to propagation in millimeter waves (mmWaves), such as severe path and penetration losses. One of the promising heterogeneous nodes is network-controlled repeater (NCR). It was proposed by the 3rd...

For the efficient management of domestic energy demand, technology has carried innovative equipment such as the Home Energy Management System (HEMS). As an extension of [5], this article adopts new alternatives for the fast training chain of models to load recognition in HEMS. The contributions are (i) the inclusion of Extreme Gradient Boosting (XGBoost)...

Power substations face high operating costs for implementing fault monitoring in power transformers, which requires monitoring equipment installation and signal processing. This work investigates two approaches to alleviate such costs in the context of gas-in-oil-based fault diagnosis: (i) modern dimensionality reduction techniques or (ii) brute-force...

This paper analyzes the effects of changing the sample rate and the number of bits of a linearly frequency- modulated (LFM) pulse on a matched filter-based radar detector. For this purpose, a radar simulator with close to real parameters is used. Changes in the values of those variables are made separately and in combination, verifying their impacts. A...

Public health faces significant challenges in combating the Aedes aegypti mosquito, which still threatens Brazilian population. Despite awareness campaigns and control measures, the incidence of diseases such as dengue, zika and chikungunya is still high. However, technological advances have enabled the development of devices capable of detecting Aedes...

This paper presents the phase responses of circular-shaped scaterrers with phase-delay lines for operation at 9.6~GHz. The curves indicate a wide range of phase values obtained by varying the length of the phase-delay lines. The behavior of the three analyzed structures is suitable for the integration into a reflectarray in the future.