A5074498395- IoT and Edge/Fog Computing
- Software-Defined Networks and 5G
- Context-Aware Activity Recognition Systems
- Caching and Content Delivery
- Opportunistic and Delay-Tolerant Networks
- Network Security and Intrusion Detection
- IoT Networks and Protocols
- Cloud Computing and Resource Management
- Wireless Networks and Protocols
- Advanced MIMO Systems Optimization
- Mobile Ad Hoc Networks
- Privacy-Preserving Technologies in Data
- Complex Network Analysis Techniques
- Consumer Retail Behavior Studies
- Indoor and Outdoor Localization Technologies
- Internet Traffic Analysis and Secure E-voting
- Augmented Reality Applications
- Smart Grid Security and Resilience
- Business, Innovation, and Economy
- Advanced Malware Detection Techniques
- Supply Chain Resilience and Risk Management
- Customer churn and segmentation
- Blockchain Technology Applications and Security
- Earthquake Detection and Analysis
- Occupational Health and Safety in Workplaces
Instituto Pedro Nunes
2022-2024
Institute for Systems Engineering and Computers
2024
University of Coimbra
2016-2023
ORCID
2020
Escuela Politécnica del Ejército
2015
Central University of Venezuela
2012-2013
Recent developments in telecommunications have allowed drawing new paradigms, including the Internet of Everything, to provide services by interconnection different physical devices enabling exchange data enrich and automate people's daily activities; Fog computing, which is an extension well-known Cloud bringing tasks edge network exploiting characteristics such as lower latency, mobility support, location awareness. Combining these paradigms opens a set possibilities for innovative...
The Cloud to Fog continuum is a very dense and complex scenario. At the core level (Cloud) resources are vast, whilst they become scarce at Edge (Fog). This complexity leads need of simulation tools in order evaluate performance novel mechanisms that hardly can be tested real scenarios. Thus, represents solution for early stage evaluation before moving real-world (and more expensive complex) testbeds. However, selecting appropriate tool itself. paper presents conceptual review on six...
A new era of automated services has permeated user's daily lives thanks to paradigms such as Smart City and the Internet Things. This shift from traditional applications is possible due massive amount heterogeneous devices that constitute To provide newly improved characteristics these services, mobility support, high resilience, low latency, an extension Cloud computing paradigm was created, called Fog computing, which brings processing storage resources towards edge network, in vicinity...
Smart Environments try to adapt their conditions focusing on the detection, localisation, and identification of people improve comfort. It is common use different sensors, actuators, analytic techniques in this kind environments process data from surroundings actuate accordingly. In research, a solution user’s experience based information obtained indoor areas, following non-intrusive approach, proposed. We used Machine Learning determine occupants estimate number persons specific space. The...
The emergence of new networking paradigms like Cloud Computing and the Internet Things has introduced security challenges that deserve mechanisms to guarantee integrity, availability confidentiality information services users. One currently most studied strategies satisfy these necessities is use hybrid Machine Learning techniques automatize process intrusion detection in computer networks. This paper presents design, implementation performance analysis multiple models for task Our results...
5G networks have strict constraints regarding the services in terms of latency, reliability, and availability, which pose additional challenges to traditional orchestration solutions, 6G will increment number slices deployed over different technological domains, adding more difficulties for orchestrator. Distributed automated solutions be essential this context. This article identifies main 5G/6G then describes utility Artificial Intelligence-driven outlining an orchestrator architecture...
With the advent of Internet Things many applications emerged that are not suitable for well-known paradigms like Cloud, requiring its extension to provide more features final users. Thus, Fog rises as an Cloud able mobility support, geographical distribution, and lower latency, by moving services closer users, edge network. This new environment located at comes with own orchestration challenges. Among functions must be adapted this is scheduling. paper presents a simple scheduling algorithm...
The Cloud-Fog-Internet of Things continuum combines different paradigms to provide connectivity and ubiquity for end-users, while also granting low latency jitter cope with challenges, including the requirements latency-sensitive applications, such as virtual/augmented reality online gaming. This constitutes a complex dynamic environment heterogeneous resources that need be managed or orchestrated, in order accomplish application latency. Common orchestration solutions make placement...
The Internet of Things comprises a network physical objects, like sensors and actuators, collecting exchanging data. Given the importance information exchanged in these environments, communication infrastructure becomes critical point that needs to be managed optimally, while providing high-performance levels end users. To guarantee correct interaction between different procedures intended for optimization infrastructure, standard flexible representation data related is necessary. Many...
The Internet of Things paradigm enables a new set smart end-user applications. Cloud-Fog-Mist-Internet infrastructure provides communication, compute, and storage support for these However, this complex, heterogeneous, distributed landscape requires orchestration management mechanisms in order to guarantee their proper functioning. One particular factor manage is the capacity provide service resilience even presence failures components substrate infrastructure. This research proposes...
In the ever-evolving landscape of computing, advent edge and fog computing has revolutionized data processing by bringing it closer to end-users. While cloud offers numerous advantages, including mobility, flexibility scalability, introduces challenges such as latency. Fog emerge complementary solutions, bridging gap enhancing services' proximity users. The pivotal challenge addressed in this paper revolves around optimizing placement application microservices minimize latency cloud-to-edge...
The proliferation of automated services and applications has generated large amounts data that must be handled with artificial intelligence machine learning techniques, impacting businesses in different fields. Cognitive customer profiling allow a better user experience enabling the tailoring to specific consumer patterns preferences. require heavy processing power order get accurate results from intelligence/machine models, which led taking advantage cloud-to-edge continuum. This trending...
The Metropolitan Area of Caracas, Venezuela, has a geographical distribution such that almost every middle-class and wealthy neighborhood is located next to at least one barrio -- informal squatter settlements. We propose Wireless Mesh Network (WMN) exploits the urban geography city, so some poor families could gain access Internet via or more Service Providers contracted by neighbors living in surrounding neighborhoods. present design intended WMN, according deployment strategy issues:...
The Radio Access Network (RAN) is undergoing deep changes in the transition to beyond 5G systems. Open-Radio (O-RAN) alliance aims split RAN architecture and support heterogeneity. At same time, Open-Source Software (OSS) solutions like OpenAirInterface srsRAN initiatives attempt incorporate several stake-holders. This work proposes an End-to-End (E2E) orchestration framework using OSS that are O-RAN compliant. A high-level presented focused on Intelligent Controller (RIC): connection...
5G aims to support ubiquitous connectivity, ultra-Reliable Low Latency (uRLLC), and massive device communication in Next Generation networks. To achieve these objectives, the Open-Radio Access Networks (O-RAN) alliance decouple Radio Network (RAN) architecture allow heterogeneity. ensure services' requirements, it is necessary guarantee solutions that improve management of network. This work proposes an End-to-End (E2E) orchestration framework for a infrastructure with open-source...
The mobility freedom provided by smartphones heavily depends on the energy their batteries. Nowadays, are used a large number of people, as well wireless communication interfaces them, which give ubiquitous connectivity to Internet. Thus, it is important be aware remaining amount in our smartphones. In this paper we present detailed study consumption two smartphone models, Nokia E71 and Motorola Milestone, focusing (Bluetooth, WiFi, 3G) different scenarios, like standby, scanning,...