355 research outputs found
A Novel Design for Advanced 5G Deployment Environments with Virtualized Resources at Vehicular and MEC Nodes
IoT and edge computing are profoundly changing the information era, bringing
a hyper-connected and context-aware computing environment to reality. Connected
vehicles are a critical outcome of this synergy, allowing for the seamless
interconnection of autonomous mobile/fixed objects, giving rise to a
decentralized vehicle-to-everything (V2X) paradigm. On this front, the European
Telecommunications Standards Institute (ETSI) proposed the Multi-Access Edge
Computing (MEC) standard, addressing the execution of cloud-like services at
the very edge of the infrastructure, thus facilitating the support of
low-latency services at the far-edge. In this article, we go a step further and
propose a novel ETSI MEC-compliant architecture that fully exploits the
synergies between the edge and far-edge, extending the pool of virtualized
resources available at MEC nodes with vehicular ones found in the vicinity. In
particular, our approach allows vehicle entities to access and partake in a
negotiation process embodying a rewarding scheme, while addressing resource
volatility as vehicles join and leave the resource pool. To demonstrate the
viability and flexibility of our proposed approach, we have built an ETSI
MEC-compliant simulation model, which could be tailored to distribute
application requests based on the availability of both local and remote
resources, managing their transparent migration and execution. In addition, the
paper reports on the experimental validation of our proposal in a 5G network
setting, contrasting different service delivery modes, by highlighting the
potential of the dynamic exploitation of far-edge vehicular resources
Edge Intelligence : Empowering Intelligence to the Edge of Network
Edge intelligence refers to a set of connected systems and devices for data collection, caching, processing, and analysis proximity to where data are captured based on artificial intelligence. Edge intelligence aims at enhancing data processing and protects the privacy and security of the data and users. Although recently emerged, spanning the period from 2011 to now, this field of research has shown explosive growth over the past five years. In this article, we present a thorough and comprehensive survey of the literature surrounding edge intelligence. We first identify four fundamental components of edge intelligence, i.e., edge caching, edge training, edge inference, and edge offloading based on theoretical and practical results pertaining to proposed and deployed systems. We then aim for a systematic classification of the state of the solutions by examining research results and observations for each of the four components and present a taxonomy that includes practical problems, adopted techniques, and application goals. For each category, we elaborate, compare, and analyze the literature from the perspectives of adopted techniques, objectives, performance, advantages and drawbacks, and so on. This article provides a comprehensive survey of edge intelligence and its application areas. In addition, we summarize the development of the emerging research fields and the current state of the art and discuss the important open issues and possible theoretical and technical directions.Peer reviewe
Aplicações de IoT no contexto de uma cidade inteligente
Over the last few years, Smart City solutions mature very rapidly alongside IoT
and cloud computing. These technologies made it easier to create services and
incorporate applications devoted to improving citizen’s quality of life and offer
ways for businesses to implement their solutions. Through rapid advances in the
quality of sensors, new methods emerged, combining different types of devices to
create a better picture of the environment. The purpose of this dissertation is to
provide useful information thought public services, that can be accessed by people
visiting or residing in the beach area of Costa Nova and Barra. It also provides
a solution for the traffic classification problem that projects based on radar data
tend to face. These applications take advantage of the devices implemented in the
PASMO project, such as parking sensors, radars, and CCTV cameras. By making
the service public, businesses have the opportunity to build applications on top of it,
utilizing the sensor data without being directly connected to the data storage. The
example developed in this dissertation offers a dashboard experience where users
can navigate through charts that provide a variety of data and real-time maps. It
also provides a public API that researchers and businesses can use to develop new
applications in the context of PASMO. The other area tackled in this document is
traffic classification. Although the data provided is reliable for the most part, one
big issue is the accuracy of vehicle classification provided by the radar. Still, this
device offers precise values when it comes to detection, with the cameras doing a
good job in classifying traffic. The goal is to combine these two devices to present
much precise information, using state-of-the-art object detection algorithms and
sensor fusion methods. In the end, the system will enrich the PASMO project by
making its data easily available to the public while correcting the accuracy problems
of some devices.Nos últimos anos, as soluções Smart City amadurecem muito rapidamente em conjunto
com IoT e serviços na cloud. Estas tecnologias facilitam a criação de serviços
e a incorporação de aplicações direcionados á melhoria da qualidade de vida do cidadão,
oferecendo formas das empresas implementarem suas soluções. Por meio de
rápidos avanços na qualidade dos sensores, novos métodos surgiram, combinando
diferentes tipos de dispositivos para criar uma melhor imagem da realidade. O
objetivo desta dissertação é fornecer informações úteis através de serviços públicos,
que podem ser acedidos por pessoas que visitam ou residem na Costa Nova e
Barra. Também fornece uma solução para o problema de classificação de tráfego
que projetos baseados em dados de radar tendem a enfrentar. Estas aplicações
beneficiam dos dispositivos implementados no projeto PASMO, como sensores de
estacionamento, radares e câmeras de CFTV. Ao disponibilizar os serviços publicamente,
as empresas têm a oportunidade de construir as suas próprias aplicações
em cima destes, usando os dados dos sensores sem estar diretamente conectado
ao armazenamento de dados. O exemplo desenvolvido nesta dissertação oferece
uma experiência de dashboard onde os utilizadores podem navegar por gráficos que
fornecem uma variedade de dados e mapas em tempo real. Também fornece uma
API pública que os investigadores e empresas podem usar para desenvolver novos
aplicativos no contexto do PASMO. A outra área abordada neste documento é a
classificação de tráfego. Embora os dados fornecidos sejam confiáveis, um grande
problema provém da precisão da classificação dos veículos fornecida pelo radar.
Ainda assim, este dispositivo oferece valores precisos quando se trata de detecção,
com as câmeras fazendo um bom trabalho na parte de classificação do tráfego. O
objetivo é combinar estes dois dispositivos para apresentar informações corretas,
usando algoritmos de detecção de objetos e métodos de fusão de sensores. No
final, o sistema irá enriquecer o projeto PASMO, tornando seus dados facilmente
disponíveis ao público e corrigindo problemas de precisão de alguns dispositivos.Mestrado em Engenharia de Computadores e Telemátic
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