Eduardo Cerqueira

Federal University of Pará | UFPA · Faculty of Computer Engineering (ENGCOMP)

O artigo relata como as iniciativas de transformação digital podem ser conduzidas de maneira alinhada com o desenvolvimento sustentável, respeitando as necessidades e características regionais. Especial destaque é dado às iniciativas para criação de cidades sustentáveis e inclusivas, em consonância com os objetivos de desenvolvimento sustentável (O...

Federated Learning (FL) has rapidly become a crucial paradigm for training Machine Learning (ML) models when datasets are spread across several devices without compromising the privacy of the data owners. In vehicular networks, FL can be used to train driving models and object detection and classification over sensitive datasets to continuously imp...

Today, grid resilience as a feature has become non-negotiable, significantly when power interruptions can impact the economy. The widespread popularity of Intelligent Electronic Devices (IED) operating as smart meters enables an immense amount of fine-grained electricity consumption data to be collected. However, risk can still exist in the Smart G...

Unmanned Aerial Vehicles (UAVs) will be part of last-mile 5G/6G networks and will support Internet of Things (IoT) and low latency services in Flying Edge Computing (FEC). UAVs will densely populate aerial space in smart cities, providing networking and computing to interactive and monitoring services to ground users. FEC is composed of one or a se...

Time is a crucial and sensitive matter in most In-ternet of Things (IoT)-based systems and applications, includingin areas with intermittent connectivity. This paper focuses on thechallenge of deploying and executing services for IoT applicationsin intermittent networks based on the resources available by aswarm of drones. This paper shows how a se...

Considering that one of the goals of the future network generations is to provide ubiquitous communication in the most diverse scenarios to achieve high connection coverage, it is foreseen that the use of unmanned aerial vehicles as flying base stations (UAV-BSs) can potentially extend the network and communication range. UAVs as flying base statio...

This paper presents a study on the performance of Machine Learning techniques for the task of determining each of the electronics systems connected within the same electrical network, in the Internet of Smart Grid Things (IoSGT) architecture. This is regarded as an ecosystem which has cutting-edge technologies that work together to enable advanced...

Vehicular Edge Computing (VEC) is a promising paradigm that provides cloud computing services closer to vehicular users. In VEC, vehicles and communication infrastructures can form pools with computational resources to meet vehicular services with low-latency constraints. These resource pools are known as Vehicular Cloud (VC). The usage of VC resou...

People in smart cities tend to be constantly connected, and wireless connection technologies have become necessary in their routines. The Long Range Wide-Area Network protocol provides a resource allocation mechanism called Adaptive Data Rate that allocates the transmission parameters to increase scalability and reduce the devices’ power consumptio...

O aprendizado federado (Federated Learning – FL) é uma abordagem distribuída para o treinamento colaborativo de modelos de aprendizado de máquina. O FL requer um alto nível de comunicação entre os dispositivos e um servidor central, assim gerando diversos desafios, incluindo gargalos de comunicação e escalabilidade na rede. Neste trabalho, introduz...

Sub-GHz communication provides long-range coverage with low power consumption and reduced deployment cost. LoRa (Long-Range) has emerged, among existing LPWAN (Low Power Wide Area Networks) technologies, as a promising physical layer alternative to provide ubiquitous connectivity to outdoor IoT devices. LoRa modulation technology supports adapting...

A smartphone can collect behavioral data without requiring additional actions on the user's part and without the need for additional hardware. In an active or continuous user authentication process, information from integrated sensors, such as touch, and gyroscope, is used to monitor the user continuously. These sensors can capture behavioral (touc...

Smart urban mobility emerged from the urban citizen's need for a fast urbanization environment, using personal devices and city infrastructure integration, data generation, and mobility services provided on congested and possibly dangerous urban roads. However, traditional routing services need to consider users' experience, comfort and health beca...

Due to poor local range of the perception and object recognition mechanisms used by autonomous vehicles, incorrect decisions can be made, which can jeopardize a fully autonomous operation. A connected and autonomous vehicle should be able to combine its local perception with the perceptions of other vehicles to improve its capability to detect and...

Among the main problems faced in the context of electric mobility today, the management and monitoring of electric vehicle charging stations, the integration between the diverse types of technologies that make up its architecture, and its low scalability stand out. Therefore, we will present the implementation and complete integration of an electri...

In recent years, the introduction of new technologies and applications connected to the Internet has demonstrated the physical incapacity of current optical backbone networks in providing resources soon. One of the main proposals to deal with this problem today is space-division multiplexing elastic optical networks. However, to transport the massi...

Location-aware services provide valuable information for capturing human mobility patterns. In this context, analyzing the mobility dynamics, such as the means of transportation and their speeds, leads to better solutions by understanding the underlying data generating process and identifying different patterns. Strategies based on extracting Infor...

The prominence of the SG-to­Cloud continuum will pave the way towards advanced Smart Grid (SG) ecosystems and will enable cutting Edge applications and servers into the power energy vertical at unprecedented innovation levels. During the design of future Smart Grid ecosystems, legacy Intelligent Eletronic Device (IED) cannot be left behind, whereby...

This paper presents the Internet of Smart Grid Things (IoSGT) architecture, which is understood as an ecosystem of cutting-edge technologies that work together to enable advanced SG applications, which run at core/edge cloud datacenter premises connecting an underlying IoT networking infrastructure. The IoT-to-Edge-to-Cloud continuum paradigm that...

With the popularity of Unmanned Aerial Vehicles (UAVs), there is an increasing demand for autonomous navigation applications, which require the use of high-definition mapping techniques of the environments. However, in highly dynamic environments, maps need to be updated regularly, which has an impact on the path planning algorithms used by the aut...

The introduction of new technologies and applications connected to the Internet has demonstrated the inability of current optical networks to provide resources for next-generation Internet. Although the emergence of elastic optical networks with space-division multiplexing has shown to be a promising solution to deal with the capacity problem, some...

With the growth of the urban population, the urban mobility infrastructure suffers several types of problems, such as the more significant occurrence of traffic jams, which directly affects the quality of life of the population and the inhabitants who need to use different types of transport, also generating a more extraordinary occurrence of air p...

Electric vehicles are a promising option to contribute to energy diversification and the goal of reducing greenhouse gas emissions. However, as the market grows, the demand for charging stations increases, which requires a new structure to manage them. Internet of Things (IoT) technologies stand out as one of the most prominent strategies, as elect...

Wearables today play a key role in E-Health computing , with investments expected to exceed $70 billion by 2024. With the massive use of apps on wearable devices, it is crucial to improve safety when using wearables, considering that important information about user information is stored on these devices. We present SOMEONE ensemble learning, a set...

Levando em consideração a rápida modernização dos veículos, que os direciona para entidades cada vez mais inteligentes e conectadas, surge o paradigma de Computação de Borda Veicular. Esse paradigma fornece serviços de computação em nuvem mais próximos dos usuários veiculares através da agregação dos recursos de veículos, a qual é denominada formaç...

A Computação de Borda Veicular é um paradigma promissor que fornece serviços de computação em nuvem próximo dos usuários veiculares. Veículos e infraestruturas de comunicação podem cooperativamente atender serviços veiculares com restrições de baixa latência através da formação de nuvens veiculares e utilização dos recursos computacionais dessas nu...

O estado núcleo da rede alerta sobre a necessidade de mudanças para que seja entregue aos usuários o desempenho que se espera de redes de alta velocidade. Como solução para a expansão da rede é discutida a implantação das Redes Ópticas Elásticas com Multiplexação por Divisão Espacial, que introduz um novo problema para a gestão de recursos nessa re...

A crescente popularização de aplicações e dispositivos conectados à Internet evidenciou que as tecnologias atuais de backbone não suportarão a demanda prevista para as próximas décadas. Nesse contexto, as redes ópticas elásticas com multiplexação por divisão espacial (SDM-EON) tem tomado grande aceitação pela comunidade científica como possível sol...

Long Range Wide Area Network (LoRaWAN) emerges to connect devices that require long-range and low-cost (bandwidth and power) communication services. In this context, the adoption of this technology brings new challenges due to the densification of IoT devices, which causes signal interference and affects the QoS directly. On the other hand, the LoR...

This Special Section focused on gathering the most recent scientific research and insights on the evolution of communication architectures and protocols able to boost the creation of a truly global internet by means of the integration of the current internet with a new Internet of Space ; how to support the operation of Tier-1, Tier-2, or even Ti...

In recent years, global communication has undergone intense transformations, especially in its use. The post-pandemic world shows new everyday situations where the connection needs specific characteristics, such as low latency, higher reliability, and higher bandwidth, among other things. The Space Division Multiplexing Elastic Optical Networks pro...

In modern networks, edge computing will be responsible for processing and learning from the critical network-and user-generated data, such as wireless link usage, mobility information, application requests, and many others. The presence of Artificial Intelligence-based (AI) applications at the edge of the network will enable the network to predict...

Future mobile communication networks need Unmanned Aerial Vehicles as Base Stations (UAVasBSs) with the fast-moving and long-term hovering capabilities to guarantee consistent network performance. UAVasBSs help 5G/B5G mobile communication systems to rapidly recover from emergency situations and handle the instant traffic of the flash crowd. In this...

Unmanned Aerial Vehicle as Base Stations (UAV-BS) is a promising technology for mitigating Terrestrial Base Stations (TBS) failures or becoming an ideal temporary solution to offloading. UAV-BS can be deployed to complement existing cellular systems by providing additional capacity to hotspot areas, as well as to provide network coverage in emergen...

A introdução de novas tecnologias e aplicações conectadas à Internet tem demonstrado a incapacidade física das redes ópticas atuais no aprovisionamento de recursos em um futuro próximo. Neste sentido, as redes ópticas elásticas com multiplexação por divisão espacial tem se mostrado uma solução promissora para lidar com este problema de capacidade....

Federated learning (FL) is a framework to train machine learning models using decentralized data, especially unbalanced and non-iid. Adaptive methods can be used to accelerate convergence, reducing the number of rounds of local computation and communication to a centralized server. This paper proposes an adaptive controller to adapt the number of e...

A localização robusta e precisa é fundamental para garantir o funcionamento de aplicações de Veículos Autônomos Conectados (CAVs). No entanto, os mecanismos de navegação veicular (GNSS) são afetados por diversos problemas nas áreas urbanas, principalmente devido à refração ou reflexão dos sinais de satélite em prédios. Assim, para usar a localização...

A interoperabilidade entre os sistemas e os dispositivos eletrônicos inteligentes (IEDs) legados, utilizados pela Smart Grid, tornou-se uma questão importante, visto que cada fabricante pode adotar um padrão diferente. Para integração de IEDs legados em um ambiente Smart Grid baseados na IoT, introduzimos o SG2IoT (do inglês Legacy Smart Grid to Io...

A técnica de virtualização baseadas em contêineres vem sendo amplamente utilizada através da adoção de tecnologias como Docker e Kubernetes que permitem a criação e o gerenciamento de contêineres. Assim, o presente artigo utilizou o Prometheus e o Grafana para analisar a performance de um cluster Kubernetes executando a plataforma Dojot e recebendo...

In modern 5G and Beyond (B5G) networks, thenumber of users and devices consuming highly-demanding ser-vices in terms of latency and throughput. Due to their highdynamicity and fine-grainess, such services must be supportedby a joint management and integration effort between tech-nologies such as Mobile Edge Computing (MEC), UnmannedAerial Vehicles...

LoRaWAN is the most adopted communication technology for the Internet of Things (IoT) applications for enabling flexible, cost-effective long-range communication with low power consumption. The deployment of a wide range of IoT devices brings many benefits to many applications, but new challenges arise from the network point of view with this deplo...

Intelligent Transportation Systems (ITSs) will be part of our daily lives, where new services are bringing novel challenges for smart cities. The ITS services rely on vehicular clouds (VC) to aggregate tasks from other vehicles to provide cloud services closest to the vehicular users. However, the resource and task allocation processes in dynamic a...

Long-Range Wide-Area Network (LoRaWAN) enables flexible long-range service communications with low power consumption which is suitable for many IoT applications. The densification of LoRaWAN, which is needed to meet a wide range of IoT networking requirements, poses further challenges. For instance, the deployment of gateways and IoT devices are wi...

Virtual Reality (VR) content is gaining popularity and allowing users to immerse themselves in a new world over the Internet. However, the high-demand for resources and the low latency requirements of VR services require changes in the current 5G networks to deliver VR with quality assurance. Microservices present a suitable model for deploying ser...

The study of multi-agent systems such as drone swarms has been intensified due to their cooperative behavior. Nonetheless, automating the control of a swarm is challenging as each drone operates under fluctuating wireless, networking and environment constraints. To tackle these challenges, we consider drone swarms as Networked Control Systems (NCS)...

The ubiquitous connectivity of Location-Based Systems (LBS) allows people to share individual location-related data anytime. In this sense, Location-Based Social Networks (LBSN) provides valuable information to be available in large-scale and low-cost fashion via traditional data collection methods. Moreover, this data contains spatial, temporal, a...

With the persistently growing popularity of internet traffic, telecom operators are forced to provide high-capacity, cost-efficient, and performance-adaptive connectivity solutions to fulfill the requirements and increase their returns. However, optical networks that make up the core of the Internet gradually reached physical transmission limits. I...

Future mobile networks will enable the massive deployment of mobile multimedia applications anytime and anywhere. In this context, mobility management schemes, such as handover and proactive multimedia service migration, will be essential to improve network performance. In this article, we propose a proactive mobility management approach based on g...

Extended Range Wide Area Network (LoRaWAN) has recently gained a lot of attention from the industrial and research community for dynamic Internet of Things (IoT) applications. IoT devices broadcast messages for neighbor gateways that deliver the message to the application server through an IP network. Hence, it is required to deploy LoRaWAN gateway...

With the increase in the number of devices connected to the internet, caused mainly by the rise of the internet of things paradigm, the core of the network tends to suffer from the scarcity of resources, which, in turn, causes a higher rate of connection blocking. This article proposes a algorithm for routing, spectrum and core allocation for spati...

O aumento no numero de dispositivos LoRaWAN conectados, tem aumentado as colisões e interferências na rede. Neste sentido, surge a necessidade de um mecanismo para gerenciar o fator de propagação usado pelos dispositivos durante as transmissões. No entanto, os mecanismos existentes não tratam a prioridade das aplicações, ocasionando em dispositivos...

A crescente demanda por serviços de entretenimento em tempo real em conjunto com o aumento da disseminação dos dispositivos móveis, tem aumentado a necessidade de executar serviços com alto recurso e em tempo real. Contudo, o cenário de rede atual não consegue prover qualidade satisfatória de streaming de vídeo aos usuários móveis, impulsionando a...

As perdas não técnicas, na maioria dos casos ocasionadas por fraudes, são as principais causadoras dos prejuı́zos financeiros das concessionárias de energia elétrica. Essas perdas diminuem drasticamente a qualidade das redes elétricas, aumentando as chances de ocorrer blecautes, curtos circuitos e avarias de equipamentos. Desta forma, torna-se estr...

The rapid spread of wearable technologies has motivated the collection of a variety of signals, such as pulse rate, electrocardiogram (ECG), electroencephalogram (EEG), and others. As those devices are used to do so many tasks and store a significant amount of personal data, the concern of how our data can be exposed starts to gain attention as the...

Video-on-Demand (VoD) services create a demand for content orchestrator mechanisms to support Quality of Experience (QoE). Fog computing brings benefits for enhancing the QoE for VoD services by caching the content closer to the user in a multi-tier fog architecture, considering their available resources to improve QoE. In this context, it is manda...

A distribuição de conteúdo de vídeo sob Demanda (VoD) está se popularizando e será o principal tipo de aplicação utilizada na Internet. Para acomodar o tráfego de VoD e prover disseminação com Qualidade de Experiência (QoE), microserviços surgem como o modelo ideal para explorar a implantação de serviços de cache em diferentes níveis de uma arquite...

Next-generation networks will pave the way for video distribution over vehicular Networks (VANETs), which will be composed of ultra-dense heterogeneous radio networks by considering existing communication infrastructures to achieve higher spectral efficiency and spectrum reuse rates. However, the increased number of cells makes mobility management...

Accurate data traffic models are crucial to characterize data flow and understand the network traffic behavior, playing paramount importance to network design and management. This letter presents an autoregression (AR) model to depict photoplethysmogram (PPG) signal-based traffic produced by wearable devices. We validate our model through empirical...

Collaboration between multiple Unmanned Aerial Vehicles (UAVs) to establish a Flying Ad-hoc Network (FANET) is a growing trend since future applications claim for more autonomous and rapidly deployable systems. In this context, Software-Defined Networking FANET (SDN-FANET ) separates the control and data plane and provides network programmability,...

eHealth applications become popular with the increasing incidence of cancer and postoperative rehabilitation, that require continuous remote monitoring of patients. Given the huge diversity of eHealth applications, their proper and non-invasive identification assist in attaining important requirements as low latency and reliability. But, their iden...

The growing of cities has resulted in innumerable technical and managerial challenges for public administrators such as energy consumption, pollution, urban mobility and even supervision of private and public spaces in an appropriate way. Urban Computing emerges as a promising paradigm to solve such challenges, through the extraction of knowledge,...

eHealth applications become popular with the increasing incidence of cancer and postoperative rehabilitation, that require continuous remote monitoring of patients. Given the huge diversity of eHealth applications, their proper and non-invasive identification assist in attaining important requirements as low latency and reliability. But, their iden...

In recent years, with the growth in the use of Unmanned Aerial Vehicles (UAVs), UAV-based systems have become popular in both military and civil applications. The lack of reliable communication infrastructure in these scenarios has motivated the use of UAVs to establish a network as flying nodes, also known as Flying Ad Hoc Networks (FANETs). Howev...

Services that aim to make the current transportation system more secure, sustainable, and efficient constitute the Traffic Management Systems (TMS). Vehicular Ad hoc Networks (VANETs) exert a strong influence for TMS applications, due to TMS services require data, communication, and processing for operation. Besides, VANET allows direct communicati...

The adoption of video-equipped vehicles in Vehicular ad-hoc networks (VANETs) is experiencing a rapid growth. It is also anticipated a substantial increase in the video content distribution with the arrival of self-driving cars as both passengers and vehicles will be able to produce and consume this type of media. This unveils a set of challenges,...

Location-Based Social Networks (LBSN) data contains spatial, temporal , and social features of user activity, providing valuable information that is currently available on large-scale and low-cost fashion via traditional data collection methods. In this way, LBSN data enables a system to predict user mobility based on spatial, temporal, and social...

Biometric authentication supports different applications and has an essential role for wearable networks due to its power to overcome limitations in the human-machine interfaces of wearable devices. In general, authentication methods rely on one-time events, such as iris and face recognition, what requires validating the user's identity whenever on...

Vehicular ad hoc networks play an important role in the efficiency of road traffic by improving safety and acting as a facilitator of services for passengers, drivers, and public safety officers. Recent improvements in the routing protocols and topologies used in vehicular networks have contributed to improvements in scalability, reliability, and t...

Heterogeneous networks offer a wide range of multimedia services , such as entertainment, advertising, and video conferences. In this multimedia scenario, users can access video content via heterogeneous wireless networks, such as LTE macro and small cells. Users also expect to receive real-time videos with Quality of Experience (QoE) support, whic...

Vehicular ad hoc network (VANET) applications have emerged as new opportunities for the automobile industry to provide advanced services for connecting vehicles and their users. Most of these services, such as safety, information, and entertainment systems, require a variety of digital content to be delivered to and from vehicles. In this article,...