A Privacy-Preserving Contact Tracing System based on a Publish-Subscribe Model
In the context of the COVID-19 pandemic, using contact-tracking apps and measures such as social isolation and mask-wearing has emerged as an efficient strat...
Publications & Collab
Uma abordagem Q-Learning para escalonamento dinâmico de comunicação do TSCH
Uma rede mesh 6TiSCH provê conectividade IPv6 usando enlaces IEEE 802.15.4 governados pelo Time Slotted Channel Hopping (TSCH). Essencialmente, o TSCH promet...
Towards a Cyber Defense System in Software-Defined Tactical Networks
This study investigates the robustness of a Software-defined Networking (SDN) controller when confronted with a Distributed Denial-of-Service (DDOS) attack i...
Improving Robustness and Reducing Control Overhead via Dynamic Clustering in Tactical SDN
This study presents a dynamic clustering approach to address the challenges of managing modern and dynamic tactical communication using diverse radio links i...
A Mobility Model for The Internet of Things
This study introduces a novel mobility model designed for the Internet of Things (IoT). While the study of movement patterns is crucial for designing and eva...
DataFITS: A Heterogeneous Data Fusion Framework for Traffic and Incident Prediction
This paper introduces DataFITS (Data Fusion on Intelligent Transportation System), an open-source framework that collects and fuses traffic-related data from...
Polarização em Redes Sociais: Conceitos, Aplicações e Desafios
A polarização aferida em redes sociais tem refletido a predisposição da sociedade para o embate de ideias e o recente incentivo a rivalidade política no mund...
Utilizando aprendizado por representação para a classificação de laços sociais da IoT
A Internet of Things (IoT) tem sido marcada pelas interações entre dispositivos que cooperam para realizar atividades. A partir deste ambiente cibernético...
OTALab: um ambiente de experimentação remota de protocolos e aplicações em Internet das Coisas
Este artigo apresenta o OTALab, uma ferramenta para criação e implantação de ambientes de experimentação de aplicações de Internet of Things (IoT) em...
MobVis: A Framework for Analysis and Visualization of Mobility Traces
Due to the increasing location-aware devices, mobility traces datasets have become an essential source for smart cities planning. Given this scenario, we pro...
Road Traffic Density Estimation Based on Heterogeneous Data Fusion
This investigation starts with the hypothesis that fusing heterogeneous data sources can increase the data coverage and improve the accuracy of traffic-relat...
The Impact of Mobility on Location Privacy: A Perspective on Smart Mobility
People use smart transportation systems to move around in smart cities, producing a massive amount of valuable mobility data. Although this characteristic en...
Understanding mobility in networks: A node embedding approach
Motivated by the growing number of mobile devices capable of connecting and exchanging messages, we propose a methodology aiming to model and analyze node mo...
Uma métrica de roteamento para Internet das Coisas Móveis
O processo de roteamento na Internet of Things (IoT) é um aspecto chave quando dispositivos podem mover. O roteamento habilita a comunicação entre os disposi...
A Internet das Coisas está preparada para mobilidade?
Mobility plays a key role in the design, implementation, and analysis of Internet of Mobile Things (IoMT) solutions. However, currently, this factor has not ...
Como os objetos da Internet das Coisas se comportam? Uma análise através de métricas quantitativas
Everyday objects have been connected promoting the Internet of Things (IoT). In this cybernetic environment, mobility is a factor that IoT’s solutions must b...
MobETX: uma métrica de roteamento ciente da mobilidade para Internet das Coisas
The routing process in Internet of Things (IoT) is a key aspect when devices can move. It enables devices to communicate with each other, enhancing functiona...
Routing and Mobility Management in the Internet of Things
This Ph.D. Thesis proposes new techniques for routing and mobility management for Internet of Things (IoT). In the future IoT, everyday mobile objects will p...
Road Data Enrichment Framework Based on Heterogeneous Data Fusion for ITS
In this work, we propose the Road Data Enrichment (RoDE), a framework that fuses data from heterogeneous data sources to enhance Intelligent Transportation S...
Dribble: A learn-based timer scheme selector for mobility management in IoT
In this work, we present Dribble a learn-based timer scheme selector to manage topology changes caused by mobility in the Internet of Things (IoT) context. I...
Mobile Matrix: Routing under Mobility in IoT, IoMT, and Social IoT
The explosive growth of “things” connected to the Internet (Internet of Things, IoT) raises the question of whether existingready-to-go networking protocols ...
Enriching Traffic Information with a Spatiotemporal Model Based on Social Media
In this work, we argue that Location-Based Social Media (LBSM) feeds may offer a new layer to improve traffic and transit comprehension. Initially, we showed...
Vehicular Networks to Intelligent Transportation Systems
Abstract: Urban mobility is a current problem of modern society and large cities, which leads to economic and time losses, high fuel consumption, and high CO...
Journal Extented – Matrix: Multihop Address Allocation and Dynamic Any-to-Any Routing for 6LoWPAN
Standard routing protocols for IPv6 over Low power Wireless Personal Area Networks (6LoWPAN) are mainly designed for data collection applications and work by...
CGR: Centrality-based Green Routing for Low-Power and Lossy Networks
High throughput and energy are two important constraints of the Low-power and Lossy Network (L2N). We propose Centrality-based Green Routing for L2Ns (CGR) a...
Mobile Matrix: A Multihop Address Allocation and Any-To-Any Routing in Mobile 6LoWPAN
In this work, we present Mobile Matrix, a routing protocol for 6LoWPAN that uses hierarchical IPv6 address allocation to perform any-to-any routing and mobil...
T-MAPS: Modelo de Descrição do Cenário de Trânsito Baseado no Twitter
Abstract: Understanding urban mobility, specifically transit mobility, has been focous of many research and investiments. However, obtain free access to real...
Sistemas de Transporte Inteligentes: Conceitos, Aplicações e Desafios
Abstract: Urban mobility is a current problem of modern society and large urban centers, which leads to economic and time losses, higher fuel consumption and...
Matrix: Multihop Address Allocation and Dynamic Any-to-Any Routing for 6LoWPAN
Standard routing protocols for IPv6 over Low power Wireless Personal Area Networks (6LoWPAN) are mainly designed for data collection applications and work by...
Towards intra-vehicular sensor data fusion
Urban mobility aspects have become a challenge with the constant growth of global population. In the same time, more data has become available, which allows ...
INTERNET DAS COISAS: DA TEORIA À PRÁTICA
A proliferação de objetos inteligentes com capacidade de sensoriamento, processamento e comunicação tem aumentado nos últimos anos. Neste cenário, a Internet...
Enforcing Link Utilization with Traffic Engineering on SDN
One of the main problems with the increasing Internet traffic is low throughput caused by bottlenecks, creating critical periods of packet loss. A straightfo...
CRAL: um algoritmo de roteamento baseado em centralidade e energia para Redes de Sensores Sem Fio
High throughput and energy are two important constraints of the Wireless Sensor Networks (WSNs). In this paper, we present the Centrality-based Routing Aware...
CRAL: a centrality-based and energy efficient collection protocol for low power and lossy networks (IEEE-Version)
High throughput and energy are two important constraints of the Wireless Sensor Networks (WSNs). In this paper, we present the Centrality-based Routing Aware...
eXtend Collection Tree Protocol
In this work, we propose eXtend Collection Tree Protocol (XCTP), a routing protocol that is an extension of the Collection Tree Protocol (CTP). CTP is the de...
COMPARING PARALLEL TECHNOLOGIES BASED ON GPU AND CPU IN NUMERICALLY SOLVING SINGLE PHASE FLOW PROBLEMS
A numerical solution for a single phase flow in a porous medium problem is relevant in many fields of science and engineering. Due to the high computational ...
Aplicação de Processamento Paralelo com GPU a Problemas de Escoamento Monofásico em Meios Porosos
O fenômeno de escoamento de fluídos em meios porosos é objeto de estudo, modelagem e simulação das ciências e engenharias, pois geralmente conduzem a problem...
Paradigmas de Processamento Paralelo na Resolução do Fractal de Mandelbrot
The diverse knowledge area such as engineering, bioinformatics or science needs a great computational power to solve their problems. In this subject, paralle...
Técnicas de Processamento Paralelo na Geração do Fractal de Mandelbrot
Frequentemente são encontrados problemas computacionais de grande porte nas áreas da ciência e engenharia, para resolvê-los técnicas de processamento paralel...
O problema do fractal de Mandelbrot como comparativo de arquiteturas de memória compartilhada GPU vs OpenMP
In many areas of science and engineering large computational problems are common. Parallel processing techniques are use to solve this problems. This work sh...
Aplicando Processamento Paralelo com GPU ao Problema do Fractal de Mandelbrot
In many areas of science and engineering large computational problems are common. Parallel processing techniques are use to solve this problems. This article...