Paulo Portugal

Publication Activity (10 Years)

Years Active: 2005-2024
Publications (10 Years): 35

Top Topics

Sensor Networks

Allocation Scheme

Top Venues

Publications

João Paulo Just Peixoto, João Carlos N. Bittencourt, Thiago C. Jesus, Daniel G. Costa, Paulo Portugal, Francisco Vasques
Exploiting geospatial data of connectivity and urban infrastructure for efficient positioning of emergency detection units in smart cities. Comput. Environ. Urban Syst. 107 (2024)
João Carlos N. Bittencourt, Daniel G. Costa, Paulo Portugal, Francisco Vasques
A Survey on Adaptive Smart Urban Systems. IEEE Access 12 (2024)
Thiago C. Jesus, Paulo Portugal, Daniel G. Costa, Francisco Vasques
Reliability and Detectability of Emergency Management Systems in Smart Cities under Common Cause Failures. Sensors 24 (9) (2024)
João Carlos N. Bittencourt, Daniel G. Costa, Paulo Portugal, Francisco Vasques
Dynamic Sensor Configuration for Multi-target Emergency Detection in Smart Cities. ISC2 (2023)
Thiago C. Jesus, Daniel G. Costa, Paulo Portugal, Francisco Vasques, Wagner A. Ferreira
Dependability and Quality-Aware Connectivity in Smart Cities Applications. ISC2 (2023)
João Paulo Just Peixoto, Daniel G. Costa, Washington de J. S. da Franca Rocha, Paulo Portugal, Francisco Vasques
CityZones: A geospatial multi-tier software tool to compute urban risk zones. SoftwareX 23 (2023)
João Paulo Just Peixoto, Daniel G. Costa, Washington de J. S. da Franca Rocha, Paulo Portugal, Francisco Vasques
Enhancing the Computation of Risk Zones Based on Emergency-Related Infrastructure in Smart Cities. ISC2 (2023)
Thiago C. Jesus, Daniel G. Costa, Paulo Portugal, Francisco Vasques
A dependability-aware approach for dynamic mobile sink repositioning in smart cities applications. ISC2 (2022)
Thiago C. Jesus, Daniel G. Costa, Paulo Portugal, Francisco Vasques
A Survey on Monitoring Quality Assessment for Wireless Visual Sensor Networks. Future Internet 14 (7) (2022)
João Paulo Just Peixoto, Daniel G. Costa, Washington de J. S. da Franca Rocha, Paulo Portugal, Francisco Vasques
Optimizing the deployment of multi-sensors emergencies detection units based on the presence of response centers in smart cities. ISC2 (2022)
Daniel G. Costa, João Paulo Just Peixoto, Thiago C. Jesus, Paulo Portugal, Francisco Vasques, Elivelton O. Rangel, Maycon L. M. Peixoto
A Survey of Emergencies Management Systems in Smart Cities. IEEE Access 10 (2022)
Daniel G. Costa, Francisco Vasques, Paulo Portugal
A Mathematical Model to Evaluate Visual Sensing Coverage of Emergency Signs on Moving Vehicles. ISC2 (2021)
Thiago C. Jesus, Daniel G. Costa, Paulo Portugal, Francisco Vasques, Ana Aguiar
Modelling Coverage Failures Caused by Mobile Obstacles for the Selection of Faultless Visual Nodes in Wireless Sensor Networks. IEEE Access 8 (2020)
Thiago C. Jesus, Paulo Portugal, Daniel G. Costa, Francisco Vasques
A Comprehensive Dependability Model for QoM-Aware Industrial WSN When Performing Visual Area Coverage in Occluded Scenarios. Sensors 20 (22) (2020)
Daniel G. Costa, Francisco Vasques, Paulo Portugal, Ana Aguiar
A Distributed Multi-Tier Emergency Alerting System Exploiting Sensors-Based Event Detection to Support Smart City Applications. Sensors 20 (1) (2020)
Daniel G. Costa, Francisco Vasques, Ana Aguiar, Paulo Portugal
Automatic Assignment of Emergency Vehicles in Response to Sensors-based Generated Alarms in Smart City Scenarios. ISC2 (2020)
Daniel G. Costa, Francisco Vasques, Paulo Portugal, Ana Aguiar
On the Use of Cameras for the Detection of Critical Events in Sensors-Based Emergency Alerting Systems. J. Sens. Actuator Networks 9 (4) (2020)
Thiago C. Jesus, Daniel G. Costa, Paulo Portugal, Francisco Vasques
FoV-Based Quality Assessment and Optimization for Area Coverage in Wireless Visual Sensor Networks. IEEE Access 8 (2020)
Thiago C. Jesus, Daniel G. Costa, Paulo Portugal
Wireless visual sensor networks redeployment based on dependability optimization. INDIN (2019)
Ronald Martinez, Alain Alejo, Paulo Portugal, Alvaro Cuno, Fernando Zapata, Ricardo Saavedra
An artifact for X.509 digital certificates delivery. SCCC (2019)
Paulo Portugal, Miguel Pazo, Alvaro Cuno, Fernando Zapata, Ricardo Saavedra
An artifact for client-side cryptographic operations. SCCC (2018)
Thiago C. Jesus, Paulo Portugal, Francisco Vasques, Daniel G. Costa
Automated Methodology for Dependability Evaluation of Wireless Visual Sensor Networks. Sensors 18 (8) (2018)
Thiago C. Jesus, Daniel G. Costa, Paulo Portugal
On the Computing of Area Coverage by Visual Sensor Networks: Assessing Performance of Approximate and Precise Algorithms. INDIN (2018)
Emerson S. Oliveira, João Paulo Just Peixoto, Daniel G. Costa, Paulo Portugal
Multiple Mobile Sinks in Event-based Wireless Sensor Networks Exploiting Traffic Conditions in Smart City Applications. INDIN (2018)
Erico Leão, Vitor Vasconcelos, Paulo Portugal, Carlos Montez, Ricardo de Moraes
A Hybrid Beacon Scheduling Scheme to Allow the Periodic Reconfiguration of Large-scale Cluster-tree WSNs. INDIN (2018)
Leonardo Martins Rodrigues, Carlos Montez, Ricardo de Moraes, Paulo Portugal, Francisco Vasques
A Temperature-Dependent Battery Model for Wireless Sensor Networks. Sensors 17 (2) (2017)
Erico Leão, Carlos Montez, Ricardo de Moraes, Paulo Portugal, Francisco Vasques
Superframe Duration Allocation Schemes to Improve the Throughput of Cluster-Tree Wireless Sensor Networks. Sensors 17 (2) (2017)
Erico Leão, Carlos Montez, Ricardo de Moraes, Paulo Portugal, Francisco Vasques
Alternative Path Communication in Wide-Scale Cluster-Tree Wireless Sensor Networks Using Inactive Periods. Sensors 17 (5) (2017)
Erico Leão, Ricardo de Moraes, Carlos Montez, Paulo Portugal, Francisco Vasques
CT-SIM: A simulation model for wide-scale cluster-tree networks based on the IEEE 802.15.4 and ZigBee standards. Int. J. Distributed Sens. Networks 13 (3) (2017)
Leonardo Martins Rodrigues, Carlos Montez, Gerson F. Budke, Francisco Vasques, Paulo Portugal
Estimating the Lifetime of Wireless Sensor Network Nodes through the Use of Embedded Analytical Battery Models. J. Sens. Actuator Networks 6 (2) (2017)
Benedito Bitencort, Francisco Vasques, Paulo Portugal, Ricardo de Moraes
SAS: Slot allocation scheme for the IEEE 802.15.4e LLDN mode. IECON (2016)
Erico Leão, Francisco Vasques, Paulo Portugal, Ricardo de Moraes, Carlos Montez
An allocation scheme for IEEE 802.15.4-ZigBee cluster-tree networks. IECON (2016)
Pedro F. Souto, Paulo Portugal, Francisco Vasques
Reliability Evaluation of Broadcast Protocols for FlexRay. IEEE Trans. Veh. Technol. 65 (2) (2016)
Leonardo Martins Rodrigues, Carlos Montez, Francisco Vasques, Paulo Portugal
Experimental validation of a battery model for low-power nodes in Wireless Sensor Networks. WFCS (2016)
Benedito Bitencort, Ricardo de Moraes, Paulo Portugal, Francisco Vasques
AdapTA: Adaptive timeslot allocation scheme for IEEE 802.15.4e LLDN mode. INDIN (2016)
Rodrigo Lange, Francisco Vasques, Rômulo Silva de Oliveira, Paulo Portugal
A scheme for slot allocation of the FlexRay Static Segment based on response time analysis. Comput. Commun. 63 (2015)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Research Trends in Wireless Visual Sensor Networks When Exploiting Prioritization. Sensors 15 (1) (2015)
Daniel G. Costa, Ivanovitch M. D. Silva, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Optimal sensing redundancy for multiple perspectives of targets in wireless visual sensor networks. INDIN (2015)
Mara Martins, Paulo Portugal, Francisco Vasques
A framework to support dependability evaluation of WSNs from AADL models. ETFA (2015)
Robson Costa, Paulo Portugal, Francisco Vasques, Carlos Montez, Ricardo de Moraes
Limitations of the IEEE 802.11 DCF, PCF, EDCA and HCCA to handle real-time traffic. INDIN (2015)
Tiago Semprebom, Carlos Montez, Gustavo Medeiros de Araújo, Paulo Portugal
A sleep-scheduling scheme for enhancing QoS and network coverage in IEEE 802.15.4 WSN. WFCS (2015)
Tiago Semprebom, Ricardo de Moraes, Carlos Montez, Paulo Portugal, Francisco Vasques
Quality of service provision assessment for DDBP approach in IEEE 802.15.4 networks. INDIN (2014)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Relevance-based partial reliability in wireless sensor networks. EURASIP J. Wirel. Commun. Netw. 2014 (2014)
Carlos M. D. Viegas, Francisco Vasques, Paulo Portugal, Ricardo de Moraes
Real-time communication in IEEE 802.11s mesh networks: simulation assessment considering the interference of non-real-time traffic sources. EURASIP J. Wirel. Commun. Netw. 2014 (2014)
Daniel G. Costa, Ivanovitch M. D. Silva, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Availability Issues in Wireless Visual Sensor Networks. Sensors 14 (2) (2014)
Daniel G. Costa, Ivanovitch M. D. Silva, Luiz Affonso Guedes, Paulo Portugal, Francisco Vasques
Selecting redundant nodes when addressing availability in wireless visual sensor networks. INDIN (2014)
David Gessner, Julián Proenza, Manuel Barranco, Paulo Portugal
Towards a reliability analysis of the design space for the communication subsystem of FT4FTT. ETFA (2014)
Daniel G. Costa, Ivanovitch M. D. Silva, Luiz Affonso Guedes, Paulo Portugal, Francisco Vasques
Enhancing Redundancy in Wireless Visual Sensor Networks for Target Coverage. WebMedia (2014)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Relevance-based balanced sink mobility in wireless visual sensor networks. INDIN (2014)
Erico Leão, Francisco Vasques, Paulo Portugal, Carlos Montez
An opportunistic approach to deal with real-time mesh communication in wireless sensor networks. INDIN (2014)
Carlos M. D. Viegas, Francisco Vasques, Paulo Portugal
Evaluating the impact of uncontrolled traffic sources upon real-time communication in IEEE 802.11s mesh networks. INDIN (2014)
Alex R. Pinto, Carlos Montez, Gustavo Medeiros de Araújo, Francisco Vasques, Paulo Portugal
An approach to implement data fusion techniques in wireless sensor networks using genetic machine learning algorithms. Inf. Fusion 15 (2014)
Daniel G. Costa, Ivanovitch M. D. Silva, Luiz Affonso Guedes, Paulo Portugal, Francisco Vasques
Availability assessment of wireless visual sensor networks for target coverage. ETFA (2014)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Energy-Efficient Packet Relaying in Wireless Image Sensor Networks Exploiting the Sensing Relevancies of Source Nodes and DWT Coding. J. Sens. Actuator Networks 2 (3) (2013)
Odilson T. Valle, Andre V. Milack, Carlos Montez, Paulo Portugal, Francisco Vasques
Polynomial Approximation of the Battery Discharge Function in IEEE 802.15.4 Nodes: Case Study of MicaZ. WorldCIST (2013)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Delay-aware DWT-based image transmission in wireless visual sensor networks. WebMedia (2013)
Daniel Macedo, Ivanovitch M. D. Silva, Luiz Affonso Guedes, Paulo Portugal, Francisco Vasques
A framework for dependability evaluation of industrial processes. ETFA (2013)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Partial energy-efficient hop-by-hop retransmission in wireless sensor networks. INDIN (2013)
Raimundo Viegas Jr., Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal, Ricardo de Moraes
A new MAC scheme specifically suited for real-time industrial communication based on IEEE 802.11e. Comput. Electr. Eng. 39 (6) (2013)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Adaptive Monitoring Relevance in Camera Networks for Critical Surveillance Applications. Int. J. Distributed Sens. Networks 9 (2013)
Mitchel S. Felske, Carlos Montez, Alex R. Pinto, Francisco Vasques, Paulo Portugal
GLHOVE: A framework for uniform coverage monitoring using cluster-tree wireless sensor networks. ETFA (2013)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal, Odilson T. Valle
A semi-reliable energy-efficient retransmission mechanism based on the sensing relevancies of source nodes for wireless image sensor networks. ISWCS (2012)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
Energy-efficient packet relaying based on the sensing relevancies of source nodes in visual sensor networks. WFCS (2012)
Ivanovitch M. D. Silva, Luiz Affonso Guedes, Paulo Portugal, Francisco Vasques
Reliability and Availability Evaluation of Wireless Sensor Networks for Industrial Applications. Sensors 12 (1) (2012)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
A routing mechanism based on the sensing relevancies of source nodes for time-critical applications in visual sensor networks. Wireless Days (2012)
Robson Costa, Paulo Portugal, Ricardo de Moraes, Francisco Vasques
An admission control mechanism to handle real-time traffic in IEEE 802.11 networks in open communication environments. WFCS (2012)
Rodrigo Lange, Francisco Vasques, Paulo Portugal, Rômulo Silva de Oliveira
Guaranteeing real-time message deadlines in the FlexRay static segment using a on-line scheduling approach. WFCS (2012)
Ricardo Marau, Moris Behnam, Zahid Iqbal, Pedro Silva, Luís Almeida, Paulo Portugal
Controlling multi-switch networks for prompt reconfiguration. WFCS (2012)
Ivanovitch M. D. Silva, Luiz Affonso Guedes, Paulo Portugal, Francisco Vasques
Dependability evaluation of WirelessHART best practices. ETFA (2012)
Gerson F. Budke, Carlos Montez, Ricardo de Moraes, Paulo Portugal
A dynamic communication approach for data fusion in IEEE 802.15.4 Wireless Sensor Networks. ETFA (2012)
Robson Costa, Paulo Portugal, Francisco Vasques, Ricardo de Moraes
Comparing RT-WiFi and HCCA approaches to handle real-time traffic in open communication environments. ETFA (2012)
Daniel G. Costa, Luiz Affonso Guedes, Francisco Vasques, Paulo Portugal
QoV: Assessing the monitoring quality in visual sensor networks. WiMob (2012)
Carlos M. D. Viegas, Silvio Sampaio, Francisco Vasques, Paulo Portugal, Pedro F. Souto
Assessment of the Interference caused by uncontrolled traffic sources upon real-time communication in IEEE 802.11-based mesh networks. WFCS (2012)
Valério Rosset, Pedro F. Souto, Paulo Portugal, Francisco Vasques
Modeling the reliability of a group membership protocol for dual-scheduled time division multiple access networks. Comput. Stand. Interfaces 34 (3) (2012)
Odilson T. Valle, Andre V. Milack, Carlos Montez, Paulo Portugal, Francisco Vasques
Experimental evaluation of multiple retransmission schemes in IEEE 802.15.4 wireless sensor networks. WFCS (2012)
Odilson T. Valle, Carlos Montez, Paulo Portugal, Francisco Vasques, Daniel G. Costa
Expansion of the available use classes in IEEE 802.15.4 networks for usage in the industrial environment. ISWCS (2012)
Ivanovitch M. D. Silva, Luiz F. Guedes, Paulo Portugal, Francisco Vasques
Preliminary results on the assessment of WirelessHART networks in transient fault scenarios. ETFA (2011)
Gerson F. Budke, Carlos Montez, Ricardo de Moraes, Paulo Portugal
A Communication Approach for Parallel Data Fusion in IEEE 802.15.4 Wireless Sensor Networks. SBESC (2011)
Robson Costa, Paulo Portugal, Francisco Vasques, Ricardo de Moraes, Ricardo Felipe Custódio
A coordination layer to handle real-time communication in Wi-Fi networks with uncontrolled traffic sources. LCN (2011)
Farahnaz Yekeh, Mostafa Pordel, Luís Almeida, Moris Behnam, Paulo Portugal
Exploring alternatives to scale FTT-SE to large networks. SIES (2011)
Ricardo de Moraes, Francisco Vasques, Paulo Portugal, Pedro F. Souto
A forcing collision resolution approach able to prioritize traffic in CSMA-based networks. Comput. Commun. 33 (1) (2010)
Ricardo de Moraes, Francisco Vasques, Paulo Portugal
Survey of Real-Time Communication in CSMA-Based Networks. Netw. Protoc. Algorithms 2 (1) (2010)
Ricardo de Moraes, Paulo Portugal, Francisco Vasques, Ricardo Felipe Custódio
Assessment of the IEEE 802.11e EDCA Protocol Limitations when Dealing with Real-Time Communication. EURASIP J. Wirel. Commun. Netw. 2010 (2010)
Robson Costa, Paulo Portugal, Francisco Vasques, Ricardo de Moraes
A TDMA-based mechanism for real-time communication in IEEE 802.11e networks. ETFA (2010)
Marcelo Nobre, Ivanovitch M. D. Silva, Luiz Affonso Guedes, Paulo Portugal
Towards a WirelessHART module for the ns-3 simulator. ETFA (2010)
Ricardo de Moraes, Francisco Vasques, Paulo Portugal
A 2-tier architecture to support real-time communication in CSMA-based networks. NOMS (2008)
Ricardo de Moraes, Paulo Portugal, Stefano Vitturi, Francisco Vasques, Pedro F. Souto
Real-Time Communication in IEEE 802.11 Networks: Timing Analysis and a Ring Management Scheme for the VTP-CSMA Architecture. LCN (2007)
Valério Rosset, Pedro F. Souto, Paulo Portugal, Francisco Vasques
A Reliability Evaluation of a Group Membership Protocol. SAFECOMP (2007)
Ricardo de Moraes, Francisco Vasques, Paulo Portugal, José Alberto Fonseca
VTP-CSMA: A Virtual Token Passing Approach for Real-Time Communication in IEEE 802.11 Wireless Networks. IEEE Trans. Ind. Informatics 3 (3) (2007)
Ricardo de Moraes, Francisco Vasques, Paulo Portugal, José Alberto Fonseca
Real-Time Communication in 802.11 Networks: The Virtual Token Passing VTP-CSMA Approach. LCN (2006)
Ricardo de Moraes, Paulo Portugal, Francisco Vasques
Simulation Analysis of the IEEE 802.11e EDCA Protocol for an Industrially-Relevant Real-Time Communication Scenario. ETFA (2006)
Ricardo de Moraes, Paulo Portugal, Francisco Vasques
A Stochastic Petri Net Model for the Simulation Analysis of the IEEE 802.11e EDCA Communication Protocol. ETFA (2006)
J. A. Carvalho, A. S. Carvalho, Paulo Portugal
Assessment of PROFIBUS networks using a fault injection framework. ETFA (2005)