Publications

Real-World Indoor Location Assessment with Unmodified RFID Antennas
The management of health systems has been one of the main challenges in several countries, especially where the aging population is …
Pedro Sobral, Rui Santos, Ricardo Alexandre, Pedro Marques, Mário Antunes, João Paulo Barraca, João Silva, Nuno Ferreira
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Privacy-Based Deployments: The Role of DevPrivOps in 6G Mobile Networks
The advent of 6G brings unprecedented opportunities for connectivity and software applications. However, it also poses significant …
Catarina Silva, Vitor A. Cunha, Joao P. Barraca, Paulo Salvador
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Guest Editorial: Special issue on network/traffic optimisation towards 6G network
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Michael Logothetis, João Paulo Barraca, Shigeo Shioda, Khaled Rabie
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Analysis of the Cryptographic Algorithms in IoT Communications
The advances on recent communication paradigms brings new security and privacy challenges, mainly about personal data collection by …
Catarina Silva, Vitor A. Cunha, João P. Barraca, Rui L. Aguiar
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Upscaling Operators of Essential Services Incident Response Teams
The eHealth sector in Portugal faces significant cybersecurity challenges, including increasing cyber threats and vulnerabilities, …
Joao Paulo Barraca, Cristina Cerqueira, Jose Filipe Alves, Sara Andrade, Antonio Meireles, Joao Rafael Almeida
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Towards Improved Indoor Location with Unmodified RFID Systems
The management of health systems has been one of the main challenges in several European countries, especially where the aging …
Rui Santos, Ricardo Alexandre, Pedro Marques, Mario Antunes, Joao Paulo Barraca, Joao Silva, Nuno Ferreira
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Semantic Evaluation of Privacy Policy Compliance in Medical Applications
Modern technologies are improving the way how human beings monitor the surrounding environment and, in fact, their own health …
Catarina Silva, Joao Paulo Barraca, Paulo Salvador, Nelson Rocha
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Permissioning and Personal Data Management in Alternate-Tenancy Smart Environments
We focus on a scenario that we call SmartBnB: smart homes rich in devices that are rented for a short period of time such as holidays. …
Catarina Silva, Vitor Jesus, Joao P. Barraca, Antonio Nehme, Gilad Rosner, Mohammad Waqas, Rui L. Aguiar
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Moving Target Defense for the cloud/edge Telco environments
The Internet of Things (IoT) paradigm has been one of the main contributors, in recent years, to the growth in the number of connected …
Pedro Escaleira, Vitor A. Cunha, Diogo Gomes, João P. Barraca, Rui L. Aguiar
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Highly Flexible and Traffic Isolating RAN Slicing: A Consumer IoT-Based Use Case
Future networks are envisaged to support an increasingly wide range of diverse services, with distinct service requirements. Network …
Fatma Marzouk, Ayman Radwan, Hao Ran Chi, Joao Paulo Barraca
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CHALLENGES AND CONSIDERATIONS FOR THE DESIGN AND IMPLEMENTATION OF A CENTRALIZED PROTECTION AND CONTROL SOLUTION FOR MV NETWORKS
The present paper presents the implementation of next-generation centralized Protection, Automation, and Control (PAC) solution for …
Ana Cristina Aleixo, Rui Dias Jorge, Fernando Gomes, Lourenço Antunes, João Paulo Barraca, Ricardo Carvalho, Mário Antunes, Diogo Gomes, Clara Gouveia, António Carrapatoso, Everton Alves, José Andrade, Luís Gonçalves, Francisco Falcão, Bruno Pinho, Luís Pires
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Privacy Preservation in Temporary use of IoT Environments
The increasing use of smart devices for monitoring spaces has caused an increase in concerns about the privacy of users of these …
Catarina Silva, Vitor Jesus, João P. Barraca, Rui L. Aguiar, Gilad Rosner
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Preserving Privacy when Querying OMOP CDM Databases
Anonymisation is currently one of the biggest challenges when sharing sensitive personal information. Its importance depends largely on …
Joao Rafael Almeida, Joao Paulo Barraca, José Luís Oliveira
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Multi-Access Edge Computing as a Service
Standardization organizations, such as the European Telecommunications Standards Institute (ETSI), have been gathering efforts to …
Pedro Escaleira, Miguel Mota, Diogo Gomes, Joao P. Barraca, Rui L. Aguiar
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Interference and QoS-Aware Resource Allocation Considering DAS Behavior for C-RAN Power Minimization Interférence et Allocation des ressources en fonction de la gestion QoS, en tenant compte du comportement des DAS pour la minimisation de la puissance des C-RAN
This work aims to minimize the power consumption of cloud virtualization components by addressing the important challenge of designing …
Fatma Marzouk, João Paulo Barraca, Ayman Radwan
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Fault-Tolerance in the Scope of Cloud Computing
Fault-tolerance methods are required to ensure high availability and high reliability in cloud computing environments. In this survey, …
A.U. Rehman, Rui L. Aguiar, Joao Paulo Barraca
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Dynamic Delegation-based Privacy Preserving in IoT Architectures
The management of smart devices in IoT environments can benefit from the flexibility offered by delegation-based authorization. Dynamic …
Catarina Silva, Joao Paulo Barraca
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Design and Evaluation of a Low-Latency CPC Environment for Virtual IEDs
Communication infrastructures are increasingly relying on Edge Computation as a method for increased flexibility and low latency …
Ricardo Carvalho, Mario Antunes, Joao Paulo Barraca, Diogo Gomes, Rui L. Aguiar
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Dataset: Mobility Patterns of a Coastal Area Using Traffic Classification Radars
Monitoring road traffic is extremely important given the possibilities it opens up in terms of studying the behavior of road users, …
Joaquim Ferreira, Rui Aguiar, José A. Fonseca, João Almeida, João Barraca, Diogo Gomes, Rafael Oliveira, João Rufino, Fernando Braz, Pedro Gonçalves
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A secure architecture for exploring patient-level databases from distributed institutions
One of the main goals of clinical studies consists of identifying diseases’ causes and improving the efficacy of medical …
Joao Rafael Almeida, Joao Paulo Barraca, Jose Luis Oliveira
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TOTP Moving Target Defense for sensitive network services
Edge computing is crucial for many of the new 5G business vertical use-cases, such as Industry 4.0 robots, safety-critical …
Vitor A. Cunha, Daniel Corujo, Joao P. Barraca, Rui L. Aguiar
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Three-Tier Fuzzy-based Orchestration in MEC
Handing over highly demanding tasks to remote or nearby computing units helps accommodate the service Quality of Service (QoS) …
Hadeel Abdah, Joao Paulo Barraca, Rui Luis Aguiar
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Testing virtual network functions auto-scaling using open-source management and orchestration
Recently, the open-source management and orchestration (OSM) platform has attracted significant interest from academia and industry, …
A.U. Rehman, Rui. L. Aguiar, Joao Paulo Barraca
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Square Kilometre Array Science Data Challenge 1: Analysis and results
As the largest radio telescope in the world, the Square Kilometre Array (SKA) will lead the next generation of radio astronomy. The …
A. Bonaldi, T. An, M. Bruggen, S. Burkutean, B. Coelho, H. Goodarzi, P. Hartley, P.K. Sandhu, C. Wu, L. Yu, M.H. Zhoolideh Haghighi, S. Anton, Z. Bagheri, D. Barbosa, J.P. Barraca, D. Bartashevich, M. Bergano, M. Bonato, J. Brand, F. De Gasperin, A. Giannetti, R. Dodson, P. Jain, S. Jaiswal, B. Lao, B. Liu, E. Liuzzo, Y. Lu, V. Lukic, D. Maia, N. Marchili, M. Massardi, P. Mohan, J.B. Morgado, M. Panwar, P. Prabhakar, V.A.R.M. Ribeiro, K.L.J. Rygl, V. Sabz Ali, E. Saremi, E. Schisano, S. Sheikhnezami, A. Vafaei Sadr, A. Wong, O.I. Wong
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Security mechanisms of a mobile health application for promoting physical activity among older adults
Physical activity contributes to the maintenance of health conditions and functioning. However, the percentage of older adults who …
David Bastos, José Ribeiro, Fernando Silva, Mário Rodrigues, Carlos Rabadão, Antonio Fernández-Caballero, João Paulo Barraca, Nelson Pacheco Rocha, António Pereira
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Routing Strategies for LoRaWAN Multi-Hop Networks: A Survey and an SDN-Based Solution for Smart Water Grid
Low Power Wide Area Networks (LPWANs) are becoming the most suitable communication technologies in the Internet of Things (IoT) …
Yandja Lalle, Mohamed Fourati, Lamia Chaari Fourati, Joao Paulo Barraca
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Radio astronomy and Space science in Azores: Enhancing the Atlantic VLBI infrastructure cluster
Radio astronomy and Space Infrastructures in the Azores have a great scientific and industrial interest because they benefit from a …
Domingos Barbosa, Bruno Coelho, Sonia Antón, Miguel Bergano, Tjarda Boekholt, Alexandre C.M. Correia, Dalmiro Maia, João Pandeirada, Valério Ribeiro, Jason Adams, João Paulo Barraca, Diogo Gomes, Bruno Morgado
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Permission and privacy challenges in alternate-tenant smart spaces
We explore a ‘Smart-BnB scenario’ whereby someone (an Owner) advertises a smart property on a web platform. Renters use the …
Vitor Jesus, Catarina Silva, João Paulo Barraca, Gilad Rosner, Antonio Nehme, Muhammad Waqas, Rui L. Aguiar
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Hands-on evaluation of the cryptographic overhead on wireless sensor networks
The Internet of Things (IoT) is a growing research field and one of today’s prime examples of Wireless Sensor Networks (WSN) …
Catarina Silva, Vitor A. Cunha, Joao P. Barraca, Rui L. Aguiar
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ESIM suitability for 5G and B5G enabled IoT verticals
Up until recently, a physical SIM card was mandatory to make calls, send messages, and access the Internet using hardware modems, but a …
Catarina Silva, Joao Paulo Barraca, Rui Aguiar
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Dynamic Interdomain Network Slicing for Verticals in the 5Growth Project
This paper proposes and validates a Interdomain Network Slicing framework for verticals, allowing them to directly participate in the …
Joao Fonseca, Joao Alegria, Vitor A. Cunha, Jose Quevedo, David Santos, Diogo Gomes, Joao P. Barraca, Daniel Corujo, Rui L. Aguiar
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Communication technologies for Smart Water Grid applications: Overview, opportunities, and research directions
Due to the aging of current water infrastructure and the increased demand for water resources, water distribution systems encounter …
Yandja Lalle, Mohamed Fourati, Lamia Chaari Fourati, João Paulo Barraca
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Building an iot platform based on service containerisation
IoT platforms have become quite complex from a technical viewpoint, becoming the cornerstone for information sharing, storing, and …
Mário Antunes, Ana Rita Santiago, Sérgio Manso, Diogo Regateiro, João Paulo Barraca, Diogo Gomes, Rui L. Aguiar
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An augmented infocommunication model for unified communications in situational contexts of collaboration
Aim/Purpose In this work, the authors propose an augmented model for human-centered Unified Communications & Collaboration …
Carolina Abrantes, Óscar Mealha, Diogo Gomes, João Paulo Barraca, Carlos Viana-Ferreira
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A Smart IoT System for Water Monitoring and Analysis
A general architecture for collection and processing of water resources data, in terms of quality and quantity, is presented and …
João Miguel Santos, Raúl Carvalho, João Carlos Martins, João Filipe Santos, Patrícia Palma, Dalmiro Maia, João Paulo Barraca, Diogo Gomes, Miguel Bergano, Domingos Barbosa, José Jasnau Caeiro
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5 Growth: Secure and reliable network slicing for verticals
Network slicing is well-recognized as a core 5G technology to enable heterogeneous vertical services sharing the same infrastructure. …
Vitor A. Cunha, Nikolaos Maroulis, Chrysa Papagianni, Javier Sacido, Manuel Jimenez, Fabio Ubaldi, Molka Gharbaoui, Chia- Yu Chang, Nikolaos Koursioumpas, Konstantin Tomakh, Daniel Corujo, Joao P. Barraca, Sokratis Barmpounakis, Denys Kucherenko, Alessio Giorgetti, Andrea Boddi, Luca Valcarenghi, Oleksii Kolodiazhnyi, Aitor Zabala, Josep Xavier Salvat, Andres Garcia-Saavedra
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Using Linux TCP connection repair for mid-session endpoint handover: A security enhancement use-case
Slice-based Network Control allows the delivery of different SLAs to heterogeneous services and the isolation of network flows, all …
Vitor A. Cunha, Daniel Corujo, Joao P. Barraca, Rui L. Aguiar
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Power Minimizing BBU-RRH Group Based Mapping in C-RAN with Constrained Devices
C-RAN presents an advanced mobile networking architecture that promises to tackle various challenging aspects of 5G such as increasing …
Fatma Marzouk, Tafseer Akhtar, Ilias Politis, J.P. Barraca, Ayman Radwan
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On Energy Efficient Resource Allocation in Shared RANs: Survey and Qualitative Analysis
An expansion of services and unprecedented traffic growth is anticipated in future networks, aligned with the adoption of the …
Fatma Marzouk, João Paulo Barraca, Ayman Radwan
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MTD to set network slice security as a KPI
Key Performance Indicators (KPIs) are a higher-level characterization of the performance of a network slice, meant to be assessable at …
Vitor A. Cunha, Daniel Corujo, Joao P. Barraca, Rui L. Aguiar
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LoRaWAN Network Capacity Analysis for Smart Water Grid
As a first step toward Smart Water Grid, we study the suitability of LoRaWAN for smart water metering. Due to the huge number of smart …
Yandja Lalle, Lamia Chaari Fourati, Mohamed Fourati, Joao Paulo Barraca
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Handover Prediction Integrated with Service Migration in 5G Systems
As the research community inclines toward adopting increasingly complex techniques for future networks, and simple methods are often …
Hadeel Abdah, Joao Paulo Barraca, Rui L. Aguiar
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Forecasting appliances failures: A machine-learning approach to predictive maintenance
Heating appliances consume approximately 48% of the energy spent on household appliances every year. Furthermore, a malfunctioning …
Sofia Fernandes, Mário Antunes, Ana Rita Santiago, João Paulo Barraca, Diogo Gomes, Rui L. Aguiar
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Enhancing Social Events with Smart Collaborative Environments
Data obtained from the user interactions, especially in professional events, can be useful to build user profiles, as well as clusters …
Catarina Silva, Tiago Ramalho, João Paulo Barraca
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EAP-SH: An EAP Authentication Protocol to Integrate Captive Portals in the 802.1X Security Architecture
In a scenario where hotspot wireless networks are increasingly being used, and given the amount of sensitive information exchanged on …
Nuno Marques, André Zúquete, João Paulo Barraca
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Developing solutions for pay-as-you-throw information systems
The development of pay-as-you-throw (PAYT) systems – one of the strategies behind smart waste concepts – has a large set of challenges …
J.P. Barraca, L.P. Almeida, A. Santos, H. Moreira, Ó. Pereira, R. Luís Aguiar, C. Dias-Ferreira
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Blockchain structures to guarantee logging integrity of a digital platform to support community-dwelling older adults
Current epidemiological changes promote a trend toward distributed care provision in the community. Digital platforms allowing the …
Marco Rosa, João Paulo Barraca, Nelson Pacheco Rocha
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A Parser to Support the Definition of Access Control Policies and Rules Using Natural Languages
As a consequence of the epidemiological transition towards non-communicable diseases, integrated care approaches are required, not …
Marco Rosa, João Paulo Barraca, André Zuquete, Nelson Pacheco Rocha
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SCoTv2: Large scale data acquisition, processing, and visualization platform
Internet of Things (IoT) solutions are becoming very popular since everything can now be processed through a technological service. …
Ana Rita Santiago, Mario Antunes, Joao Paulo Barraca, Diogo Gomes, Rui L. Aguiar
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Safeguarding from abuse by IoT vendors: Edge messages verification of cloud-assisted equipment
The fact that most IoT solutions are provided by 3rd-parties, along with the pervasiveness of the collected data, raises privacy and …
Vitor A. Cunha, Eduardo Da Silva, Marcio B. De Carvalho, Daniel Corujo, Joao P. Barraca, Diogo Gomes, Alberto E. Schaeffer-Filho, Carlos R.P. Dos Santos, Lisandro Z. Granville, Rui L. Aguiar
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QoS-aware service continuity in the virtualized edge
5G systems are envisioned to support numerous delay-sensitive applications such as the tactile Internet, mobile gaming, and augmented …
Hadeel Abdah, Joao Paulo Barraca, Rui L. Aguiar
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Predictive maintenance system for efficiency improvement of heating equipment
Heating appliances such as HVAC systems consume around 48% of the energy power spent on household appliances every year. With this in …
Ana Rita Santiago, Mario Antunes, Joao Paulo Barraca, Diogo Gomes, Rui L. Aguiar
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Network Functions Virtualization: The Long Road to Commercial Deployments
Network operators are under pressure to offer efficient network-based services while keeping service deployment costs to a minimum. …
A.U. Rehman, Rui L. Aguiar, Joao Paulo Barraca
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Logging integrity with blockchain structures
In developed countries, it is frequent for family members do not have the time, knowledge, or live in a close distance of their senior …
Marco Rosa, João Paulo Barraca, Nelson Pacheco Rocha
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Fault-tolerance in the scope of Software-Defined Networking (SDN)
Fault-tolerance is an essential aspect of network resilience. Fault-tolerance mechanisms are required to ensure high availability and …
A.U. Rehman, Rui. L. Aguiar, Joao Paulo Barraca
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Access control for social care platforms using fast healthcare interoperability resources
The definition of authorization policies is essential to prevent information misuse and to guarantee that only authorized personnel can …
Marco Rosa, João Paulo Barraca, Nelson Pacheco Rocha
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A Network Service for Preventing Data Leakage from IoT Cloud-assisted Equipment
The fact that most IoT solutions are provided by third parties, along with the pervasiveness of the collected data, raises privacy and …
Vitor A. Cunha, Rui L. Aguiar, Eduardo Da Silva, Marcio B. De Carvalho, Daniel Corujo, Joao P. Barraca, Diogo Gomes, Alberto E. Schaeffer-Filho, Carlos R. P. Dos Santos, Lisandro Z. Granville
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A Comparative Study of LoRaWAN, SigFox, and NB-IoT for Smart Water Grid
Low Power Wide Area Networks (LPWAN) are becoming the powerful communication technologies of the IoT of tomorrow. LoRaWAN, SigFox, and …
Yandja Lalle, Lamia Chaari Fourati, Mohamed Fourati, Joao Paulo Barraca
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Very large scale high performance computing and instrument management for high availability systems through the use of virtualization at the Square Kilometre Array (SKA) telescope
The Square Kilometer Array (SKA) Telescope, is an ongoing project set to start its building phase in 2018 and be ready for first light …
J.B. Morgado, D. Maia, D. Barbosa, J.P. Barraca, J. Bergano, D. Bartashevich, M. Di Carlo, M. Canzari, M. Dolci, R. Smareglia
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SKA telescope manager: A status update
The international Square Kilometre Array (SKA) project to build two radio interferometers is approaching the end of its design phase, …
Alan Bridger, Yashwant Gupta, Subhrojyoti R. Chaudhuri, Matteo Di Carlo, Gerhard Le Roux, Swaminathan Natarajan, Riccardo Smareglia, Mangesh Patil, Domingos Barbosa, Lize Van Den Heever, Mauro Dolci, Valentina Alberti, Ray Brederode, Joao Paulo Barraca, Dzianis Bartashevich, Miguel Bergano, Giorgio Brajnik, Matteo Canzari, Aditya Dange, Juan Carlos Guzman, Giovanna Jerse, Amruta Khanvilkar, Pamela Klaassen, Cristina Knapic, Jitendra Kodikar, Vikas Kumthekar, Dalmiro Maia, Vivek Mohile, Bruno Morgado, Snehal Nakave, Mark Nicol, Alan O'Brien, Niruj M. Ramanujam, Jyotin Ranpura, Steven Reed, Vinod Sathe, Nuno Silva, Paul Swart, Franco Tinarelli, Vatsal Trivedi, Lochan Babani, Snehal Valame, Sonja Vrcic, Stewart Williams, Yogesh Wadadekar
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Resource discovery for distributed computing systems: A comprehensive survey
Large-scale distributed computing environments provide a vast amount of heterogeneous computing resources from different sources for …
Javad Zarrin, Rui L. Aguiar, João Paulo Barraca
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Orchestrating an SFC-enabled SSL/TLS traffic processing architecture using MANO
The heterogeneity of 5G requirements commands more complex network architectures, imposing the need for network orchestration. ETSI NFV …
Eduardo Sousa, Vitor A. Cunha, Marcio B. De Carvalho, Daniel Corujo, Joao P. Barraca, Diogo Gomes, Alberto E. Schaeffer-Filho, Carlos R. P. Dos Santos, Lisandro Z. Granville, Rui L. Aguiar
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Non-IP Multi-protocol Stack for Vehicular Communications
Wireless vehicular communications are gaining momentum, mainly to improve road safety through the use of cooperative systems. Such …
Paulo Sousa, Muhammad Alam, Joaquim Ferreira, Jo Ao Paulo Barraca
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Human-centric design of unified communications: E-collaboration features
This article describes a co-design process in the context of user experience (UX) and usability testing and analysis of a first proof …
Carolina Abrantes, Óscar Mealha, Diogo Gomes, João Paulo Barraca, José Ferreira
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An SFC-enabled approach for processing SSL/TLS encrypted traffic in Future Enterprise Networks
In this paper, we propose an architecture based on NFV and SDN which allows to balance traffic analysis techniques using a Classifier. …
Vitor A. Cunha, Marcio B. De Carvalho, Daniel Corujo, Joao P. Barraca, Diogo Gomes, Alberto E. Schaeffer-Filho, Carlos R. P. Dos Santos, Lisandro Z. Granville, Rui L. Aguiar
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Vehicular dataset for road assessment conditions
The Internet of Things (IoT) is a very promising concept that by connecting numerous devices to the internet and extracting large sums …
Mario Antunes, Diogo Gomes, Joao Paulo Barraca, Rui L. Aguiar
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Secure decentralized IoT Infrastructure
Despite many Internet of Things (IoT) Infrastructures having been implemented in recent years, none of them is truly prepared for a …
Vasco Santos, Joao Paulo Barraca, Diogo Gomes
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PASMO: An open living lab for cooperative ITS and smart regions
PASMO is a regional project aiming to bridge the gap between research and practice in the area of urban mobility support. It covers key …
Joaquim Ferreira, Jose Fonseca, Diogo Gomes, Joao Barraca, Bruno Fernandes, Joao Rufino, Joao Almeida, Rui Aguiar
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Manycore simulation for peta-scale system design: Motivation, tools, challenges and prospects
The architecture design of peta-scale computing systems is complex and presents lots of difficulties to designs, as current tools lack …
Javad Zarrin, Rui L. Aguiar, João Paulo Barraca
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HARD: Hybrid Adaptive Resource Discovery for Jungle Computing
In recent years, Jungle Computing has emerged as a distributed computing paradigm based on simultaneous combination of various …
Javad Zarrin, Rui L. Aguiar, João Paulo Barraca
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A Survey on Cooperative MAC Protocols in IEEE 802.11 Wireless Networks
The concept of cooperative communication appears as a beneficial method that can address key challenges faced by wireless networks. …
Rasool Sadeghi, João Paulo Barraca, Rui L. Aguiar
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SKA Telescope Manager (TM): Status and architecture overview
The SKA radio telescope project is building two telescopes, SKA-Low in Australia and SKA-Mid in South Africa respectively. The …
Swaminathan Natarajan, Domingos Barbosa, Joao P. Barraca, Alan Bridger, Subhrojyoti R. Choudhury, Matteo Di Carlo, Mauro Dolci, Yashwant Gupta, Juan Guzman, Lize Van Den Heever, Gerhard Le Roux, Mark Nicol, Mangesh Patil, Riccardo Smareglia, Paul Swart, Roger Thompson, Sonja Vrcic, Stewart Williams
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Seamless integration of cloud and fog networks
A way to merge cloud computing infrastructures with traditional or legacy network deployments, leveraging the best in both worlds and …
Igor Duarte Cardoso, João P. Barraca, Carlos Gonçalves, Rui L. Aguiar
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Policy-driven vCPE through dynamic network service function chaining
Virtual CPEs address the low agility, slow time-to-market and high costs (of development, deployment and support) that are inheritable …
Vitor A. Cunha, Igor D. Cardoso, Joao P. Barraca, Rui L. Aguiar
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IMS centric communication supporting WebRTC endpoints
With the evolution of technologies such as WebRTC and telecommunication (Telco) architectures aligned with the latest 3GPP standards, …
Bruno Simoes Cruz, Joao Paulo Barraca
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ElCore: Dynamic elastic resource management and discovery for future large-scale manycore enabled distributed systems
Large-scale computing environments (such as HPC Clusters, Grids and Clouds) provide a vast number of heterogeneous resources (such as …
Javad Zarrin, Rui L. Aguiar, João Paulo Barraca
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A cyber infrastructure for the SKA Telescope Manager
The Square Kilometre Array Telescope Manager (SKA TM) will be responsible for assisting the SKA Operations and Observation Management, …
Domingos Barbosa, João P. Barraca, Bruno Carvalho, Dalmiro Maia, Yashwant Gupta, Swaminathan Natarajan, Gerhard Le Roux, Paul Swart
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Toward a telco cloud environment for service functions
Deploying service functions, SFs, is an essential action for a network provider. However, the action of creating, modifying and …
Joao Soares, Carlos Goncalves, Bruno Parreira, Paulo Tavares, Jorge Carapinha, Joao Paulo Barraca, Rui L. Aguiar, Susana Sargento
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Seamless integration of Cloud and Fog networks
This work provides a way to merge Cloud Computing infrastructures with traditional or legacy network deployments, leveraging the best …
Igor Duarte Cardoso, Joao Paulo Barraca, Carlos Goncalves, Rui L. Aguiar
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Dynamic, scalable and flexible resource discovery for large-dimension many-core systems
Future large scale systems will execute novel operating systems running across many chips with many cores. In this highly distributed …
Javad Zarrin, Rui L. Aguiar, João Paulo Barraca
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Unified platform for M2M telco providers
Although many environments are powered by M2M solutions, users do not have a simple way to gather their collective knowledge and …
Mário Antunes, João Paulo Barraca, Diogo Gomes, Paulo Oliveira, Rui L. Aguiar
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Electronic shelf labeling employing visible light communication concepts
This paper discusses the usage of visible light communication concepts for Electronic Shelf Labeling Devices (ESLD), using unmodified …
João Paulo Barraca, Luis Nero Alves, Mónica Figueiredo
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Cooperation metric for IEEE 802.11 wireless networks
A key design issue in relay based cooperative wireless networks is the design of an appropriate metric for relay selection algorithms. …
Rasool Sadeghi, Joao Paulo Barraca, Rui L. Aguiar
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CloudThinking as an intelligent infrastructure for mobile robotics
Mobile robotics is a transforming field that presents a varying set of challenges. The discussion on the autonomy of (self-powered) …
Rui L. Aguiar, Diogo Gomes, João Paulo Barraca, Nuno Lau
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A sustainable approach to large ICT science based infrastructures; The case for radio astronomy
Large sensor-based infrastructures for radio astronomy will be among the most intensive data-driven projects in the world, facing very …
Domingos Barbosa, Joao Paulo Barraca, Albert-Jan Boonstra, Rui Aguiar, Arnold Van Ardenne, Juande De Santander-Vela, Lourdes Verdes-Montenegro
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A self-organizing and self-configuration algorithm for resource management in service-oriented systems
With the ever increasing deployment of service-oriented distributed systems in large-scale and heterogeneous computing environments, …
Javad Zarrin, Rui L. Aguiar, João Paulo Barraca
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Foreword
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Eugen Borcoci, Petre Dini, Andreas J. Kassler, Michael Bahr, Vladimir Sulc, Mathilde Benveniste, Sandra Sendra Compte, Karoly Farkas, Jens Myrup Pedersen, Mats Björkman, Stefan Bouckaert, João Paulo Barraca
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Collaborative relaying strategies in autonomic management of mobile robotics
Mobile robotics is a field that presents a surprising set of challenges to communications. One concept that can result in radically …
João Paulo Barraca, Rasool Sadeghi, Rui L. Aguiar
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An open source software forge for European projects
Open Source is an increasingly interesting vehicle for dissemination of project results within the R&D and ICT FP7 communities. …
Alfredo Matos, Miguel Ponce De Leon, Rui Ferreira, João Paulo Barraca
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Multiplatform management of a Hard Real-Time Ethernet Switch
The Hard Real-Time Ethernet Switch (HaRTES) allows using the same network to handle multiple traffic flows, without compromising the …
Aleksander Pleszko, João Paulo Barraca, Joaquim Ferreira, Pedro Gonçalves
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Experimentation made easy with the amazing panel
Experimental testbeds for evaluating solutions in computer networks, are today required as a complement to simulation and emulation. As …
João Martins, João Paulo, Diogo Gomes, Rui L. Aguiar
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Energy efficiency and capacity modeling for cooperative cognitive networks
Cooperative relaying has recently appeared as one of the widely recognized features for future wireless communication systems. The …
Rasool Sadeghi, Jõao Paulo Barraca, Rui L. Aguiar
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Demonstrating the amazing panel
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João Martins, João Paulo Barraca, Diogo Gomes, Rui L. Aguiar
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User centric community clouds
With the evolution in cloud technologies, users are becoming acquainted with seamless service provision. Nevertheless, clouds are not a …
João Paulo Barraca, Alfredo Matos, Rui L. Aguiar
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Network interfaces flying over IP networks
We propose a novel method to export both interface control and data planes across different hosts, effectively enabling hardware …
João Paulo Barraca, Alexandre Brito, Rui L. Aguiar
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Metrics for optimal relay selection in cooperative wireless networks
A key design issue in relay based cooperative wireless networks is the metrics used for relay selection. Internal operational …
Rasool Sadeghi, João PauloBarraca, Rui L. Aguiar
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Cooperative performance bounds of wireless local area networks
In a Wireless Local Area Network (WLAN), capacity gain and delay reduction play a crucial role in system performance. In this paper, we …
Rasool Sadeghi, João Paulo Barraca, Rui L. Aguiar
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AMazING - Advanced mobile wireless playGrouNd
We describe a wireless testbed composed by 24 wireless nodes that can be used to perform a broad range of studies in the area of next …
João Paulo Barraca, Diogo Gomes, Rui L. Aguiar
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FastM in wmn: A fast mobility support extension for wireless mesh networks
In this paper we present a new extension to proactive routing protocols using a fast mobility extension, FastM, with the purpose of …
Luís Couto, João Paulo Barraca, Susana Sargento, Rui L. Aguiar
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Managing community aware Wireless Mesh Networks
Wireless Mesh Networks, due to their typical architecture and deployment, are able to respond to user expectations as no other …
João Paulo Barraca, Rui L. Aguiar
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Community building over neighborhood Wireless Mesh Networks
The fourth generation (4G) networks provide a converged environment for technology and service provision. The user-centric vision …
Panayotis Antoniadis, Benedicte Le Grand, Anna Satsiou, Leandros Tassiulas, Rui Aguiar, João Paulo Barraca, Susana Sargento
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An architecture for community mesh networking
The advances on wireless mesh networks are shifting the communications paradigm, where users can benefit from their cooperation to …
João Paulo Barraca, Pedro Fernandes, Susana Sargento, Rui Rocha
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Role based cross-layer communities on wmn
The community notion can be exploited as a rational concept leading users to cooperate in sharing resources on Wireless Mesh Networks. …
João Paulo Barraca, Susana Sargento, Rui Aguiar
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Experimental evaluation of the usage of ad hoc networks as stubs for multiservice networks
This paper describes an experimental evaluation of a multiservice ad hoc network, aimed to be interconnected with an infrastructure, …
Miguel Almeida, Rafael Sarrô, João Paulo Barraca, Susana Sargento, Rui L. Aguiar
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The Polynomial-Assisted ad-hoc charging protocol
The area of trustworthy charging in self-organized environments has been developed quite recently. This paper introduces a new secure …
João Paulo Barraca, Susana Sargento, Rui L. Aguiar
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Linking ad hoc charging schemes to AAAC architectures
The current state of today’s networks allows us to take one step further in merging the research community’s work with …
Joao Girao, Bernd Lamparter, Dirk Westhoff, Rui L. Aguiar, Joao P. Barraca
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QoS-differentiated secure charging in ad-hoc environments
In order to keep up with new networking needs, it is necessary to adopt mechanisms for charging network usage in a universal way. The …
João Girão, João P. Barraca, Bernd Lamparter, Dirk Westhoff, Rui Aguiar
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