The GRAFCET Specification Language. - Paulo Portugal; Adriano Carvalho 001 (The Industrial Information Technology Handbook, 2005)

Assessment of PROFIBUS networks using a fault injection framework. - J. A. Carvalho; A. S. Carvalho; Paulo Portugal (ETFA, 2005)

A Stochastic Petri Net Model for the Simulation Analysis of the IEEE 802.11e EDCA Communication Protocol. - Ricardo de Moraes; Paulo Portugal; Francisco Vasques (ETFA, 2006)

Simulation Analysis of the IEEE 802.11e EDCA Protocol for an Industrially-Relevant Real-Time Communication Scenario. - Ricardo de Moraes; Paulo Portugal; Francisco Vasques (ETFA, 2006)

Real-Time Communication in 802.11 Networks: The Virtual Token Passing VTP-CSMA Approach. - Ricardo de Moraes; Francisco Vasques; Paulo Portugal; José Alberto Fonseca (LCN, 2006)

Real-Time Communication in IEEE 802.11 Networks: Timing Analysis and a Ring Management Scheme for the VTP-CSMA Architecture. - Ricardo de Moraes; Paulo Portugal; Stefano Vitturi; Francisco Vasques; Pedro F. Souto (LCN, 2007)

A Reliability Evaluation of a Group Membership Protocol. - Valério Rosset; Pedro F. Souto; Paulo Portugal; Francisco Vasques (SAFECOMP, 2007)

VTP-CSMA: A Virtual Token Passing Approach for Real-Time Communication in IEEE 802.11 Wireless Networks. - Ricardo de Moraes; Francisco Vasques; Paulo Portugal; José Alberto Fonseca (IEEE Trans. Ind. Informatics, 2007)

A 2-tier architecture to support real-time communication in CSMA-based networks. - Ricardo de Moraes; Francisco Vasques; Paulo Portugal (NOMS, 2008)

A TDMA-based mechanism for real-time communication in IEEE 802.11e networks. - Robson Costa; Paulo Portugal; Francisco Vasques; Ricardo de Moraes (ETFA, 2010)

Towards a WirelessHART module for the ns-3 simulator. - Marcelo Nobre; Ivanovitch M. D. Silva; Luiz Affonso Guedes; Paulo Portugal (ETFA, 2010)

A forcing collision resolution approach able to prioritize traffic in CSMA-based networks. - Ricardo de Moraes; Francisco Vasques; Paulo Portugal; Pedro F. Souto (Comput. Commun., 2010)

Assessment of the IEEE 802.11e EDCA Protocol Limitations when Dealing with Real-Time Communication. - Ricardo de Moraes; Paulo Portugal; Francisco Vasques; Ricardo Felipe Custódio (EURASIP J. Wirel. Commun. Netw., 2010)

Survey of Real-Time Communication in CSMA-Based Networks. - Ricardo de Moraes; Francisco Vasques; Paulo Portugal (Netw. Protoc. Algorithms, 2010)

Preliminary results on the assessment of WirelessHART networks in transient fault scenarios. - Ivanovitch M. D. Silva; Luiz F. Guedes; Paulo Portugal; Francisco Vasques (ETFA, 2011)

A coordination layer to handle real-time communication in Wi-Fi networks with uncontrolled traffic sources. - Robson Costa; Paulo Portugal; Francisco Vasques; Ricardo de Moraes; Ricardo Felipe Custódio (LCN, 2011)

A Communication Approach for Parallel Data Fusion in IEEE 802.15.4 Wireless Sensor Networks. - Gerson F. Budke; Carlos Montez; Ricardo de Moraes; Paulo Portugal (SBESC, 2011)

Exploring alternatives to scale FTT-SE to large networks. - Farahnaz Yekeh; Mostafa Pordel; Luís Almeida 001; Moris Behnam; Paulo Portugal (SIES, 2011)

A dynamic communication approach for data fusion in IEEE 802.15.4 Wireless Sensor Networks. - Gerson F. Budke; Carlos Montez; Ricardo de Moraes; Paulo Portugal (ETFA, 2012)

Comparing RT-WiFi and HCCA approaches to handle real-time traffic in open communication environments. - Robson Costa; Paulo Portugal; Francisco Vasques; Ricardo de Moraes (ETFA, 2012)

Dependability evaluation of WirelessHART best practices. - Ivanovitch M. D. Silva; Luiz Affonso Guedes; Paulo Portugal; Francisco Vasques (ETFA, 2012)

A semi-reliable energy-efficient retransmission mechanism based on the sensing relevancies of source nodes for wireless image sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal; Odilson T. Valle (ISWCS, 2012)

Expansion of the available use classes in IEEE 802.15.4 networks for usage in the industrial environment. - Odilson T. Valle; Carlos Montez; Paulo Portugal; Francisco Vasques; Daniel G. Costa (ISWCS, 2012)

A routing mechanism based on the sensing relevancies of source nodes for time-critical applications in visual sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (Wireless Days, 2012)

Energy-efficient packet relaying based on the sensing relevancies of source nodes in visual sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (WFCS, 2012)

An admission control mechanism to handle real-time traffic in IEEE 802.11 networks in open communication environments. - Robson Costa; Paulo Portugal; Ricardo de Moraes; Francisco Vasques (WFCS, 2012)

Guaranteeing real-time message deadlines in the FlexRay static segment using a on-line scheduling approach. - Rodrigo Lange; Francisco Vasques; Paulo Portugal; Rômulo Silva de Oliveira (WFCS, 2012)

Controlling multi-switch networks for prompt reconfiguration. - Ricardo Marau; Moris Behnam; Zahid Iqbal; Pedro Silva 001; Luís Almeida 001; Paulo Portugal (WFCS, 2012)

Experimental evaluation of multiple retransmission schemes in IEEE 802.15.4 wireless sensor networks. - Odilson T. Valle; Andre V. Milack; Carlos Montez; Paulo Portugal; Francisco Vasques (WFCS, 2012)

Assessment of the Interference caused by uncontrolled traffic sources upon real-time communication in IEEE 802.11-based mesh networks. - Carlos M. D. Viegas; Silvio Sampaio; Francisco Vasques; Paulo Portugal; Pedro F. Souto (WFCS, 2012)

QoV: Assessing the monitoring quality in visual sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (WiMob, 2012)

Modeling the reliability of a group membership protocol for dual-scheduled time division multiple access networks. - Valério Rosset; Pedro F. Souto; Paulo Portugal; Francisco Vasques (Comput. Stand. Interfaces, 2012)

Reliability and Availability Evaluation of Wireless Sensor Networks for Industrial Applications. - Ivanovitch M. D. Silva; Luiz Affonso Guedes; Paulo Portugal; Francisco Vasques (Sensors, 2012)

GLHOVE: A framework for uniform coverage monitoring using cluster-tree wireless sensor networks. - Mitchel S. Felske; Carlos Montez; Alex R. Pinto; Francisco Vasques; Paulo Portugal (ETFA, 2013)

A framework for dependability evaluation of industrial processes. - Daniel Macedo; Ivanovitch M. D. Silva; Luiz Affonso Guedes; Paulo Portugal; Francisco Vasques (ETFA, 2013)

Partial energy-efficient hop-by-hop retransmission in wireless sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (INDIN, 2013)

Delay-aware DWT-based image transmission in wireless visual sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (WebMedia, 2013)

Polynomial Approximation of the Battery Discharge Function in IEEE 802.15.4 Nodes: Case Study of MicaZ. - Odilson T. Valle; Andre V. Milack; Carlos Montez; Paulo Portugal; Francisco Vasques (WorldCIST, 2013)

A new MAC scheme specifically suited for real-time industrial communication based on IEEE 802.11e. - Raimundo Viégas Junior; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal; Ricardo de Moraes (Comput. Electr. Eng., 2013)

Adaptive Monitoring Relevance in Camera Networks for Critical Surveillance Applications. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (Int. J. Distributed Sens. Networks, 2013)

Energy-Efficient Packet Relaying in Wireless Image Sensor Networks Exploiting the Sensing Relevancies of Source Nodes and DWT Coding. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (J. Sens. Actuator Networks, 2013)

Availability assessment of wireless visual sensor networks for target coverage. - Daniel G. Costa; Ivanovitch M. D. Silva; Luiz Affonso Guedes; Paulo Portugal; Francisco Vasques (ETFA, 2014)

Towards a reliability analysis of the design space for the communication subsystem of FT4FTT. - David Gessner; Julián Proenza; Manuel Barranco; Paulo Portugal (ETFA, 2014)

Relevance-based balanced sink mobility in wireless visual sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (INDIN, 2014)

Selecting redundant nodes when addressing availability in wireless visual sensor networks. - Daniel G. Costa; Ivanovitch M. D. Silva; Luiz Affonso Guedes; Paulo Portugal; Francisco Vasques (INDIN, 2014)

An opportunistic approach to deal with real-time mesh communication in wireless sensor networks. - Érico Leão; Francisco Vasques; Paulo Portugal; Carlos Montez (INDIN, 2014)

Quality of service provision assessment for DDBP approach in IEEE 802.15.4 networks. - Tiago Semprebom; Ricardo de Moraes; Carlos Montez; Paulo Portugal; Francisco Vasques (INDIN, 2014)

Evaluating the impact of uncontrolled traffic sources upon real-time communication in IEEE 802.11s mesh networks. - Carlos M. D. Viegas; Francisco Vasques; Paulo Portugal (INDIN, 2014)

Enhancing Redundancy in Wireless Visual Sensor Networks for Target Coverage. - Daniel G. Costa; Ivanovitch M. D. Silva; Luiz Affonso Guedes; Paulo Portugal; Francisco Vasques (WebMedia, 2014)

Relevance-based partial reliability in wireless sensor networks. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (EURASIP J. Wirel. Commun. Netw., 2014)

Real-time communication in IEEE 802.11s mesh networks: simulation assessment considering the interference of non-real-time traffic sources. - Carlos M. D. Viegas; Francisco Vasques; Paulo Portugal; Ricardo de Moraes (EURASIP J. Wirel. Commun. Netw., 2014)

An approach to implement data fusion techniques in wireless sensor networks using genetic machine learning algorithms. - Alex R. Pinto; Carlos Montez; Gustavo Medeiros de Araújo; Francisco Vasques; Paulo Portugal (Inf. Fusion, 2014)

Availability Issues in Wireless Visual Sensor Networks. - Daniel G. Costa; Ivanovitch M. D. Silva; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (Sensors, 2014)

A framework to support dependability evaluation of WSNs from AADL models. - Mara Martins; Paulo Portugal; Francisco Vasques (ETFA, 2015)

Limitations of the IEEE 802.11 DCF, PCF, EDCA and HCCA to handle real-time traffic. - Robson Costa; Paulo Portugal; Francisco Vasques; Carlos Montez; Ricardo de Moraes (INDIN, 2015)

Optimal sensing redundancy for multiple perspectives of targets in wireless visual sensor networks. - Daniel G. Costa; Ivanovitch M. D. Silva; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (INDIN, 2015)

A sleep-scheduling scheme for enhancing QoS and network coverage in IEEE 802.15.4 WSN. - Tiago Semprebom; Carlos Montez; Gustavo Medeiros de Araújo; Paulo Portugal (WFCS, 2015)

A scheme for slot allocation of the FlexRay Static Segment based on response time analysis. - Rodrigo Lange; Francisco Vasques; Rômulo Silva de Oliveira; Paulo Portugal (Comput. Commun., 2015)

Research Trends in Wireless Visual Sensor Networks When Exploiting Prioritization. - Daniel G. Costa; Luiz Affonso Guedes; Francisco Vasques; Paulo Portugal (Sensors, 2015)

SAS: Slot allocation scheme for the IEEE 802.15.4e LLDN mode. - Benedito Bitencort; Francisco Vasques; Paulo Portugal; Ricardo de Moraes (IECON, 2016)

An allocation scheme for IEEE 802.15.4-ZigBee cluster-tree networks. - Érico Leão; Francisco Vasques; Paulo Portugal; Ricardo de Moraes; Carlos Montez (IECON, 2016)

AdapTA: Adaptive timeslot allocation scheme for IEEE 802.15.4e LLDN mode. - Benedito Bitencort; Ricardo de Moraes; Paulo Portugal; Francisco Vasques (INDIN, 2016)

Experimental validation of a battery model for low-power nodes in Wireless Sensor Networks. - Leonardo Martins Rodrigues; Carlos Montez; Francisco Vasques; Paulo Portugal (WFCS, 2016)

Reliability Evaluation of Broadcast Protocols for FlexRay. - Pedro F. Souto; Paulo Portugal; Francisco Vasques (IEEE Trans. Veh. Technol., 2016)

CT-SIM: A simulation model for wide-scale cluster-tree networks based on the IEEE 802.15.4 and ZigBee standards. - Érico Leão; Ricardo de Moraes; Carlos Montez; Paulo Portugal; Francisco Vasques (Int. J. Distributed Sens. Networks, 2017)

Estimating the Lifetime of Wireless Sensor Network Nodes through the Use of Embedded Analytical Battery Models. - Leonardo Martins Rodrigues; Carlos Montez; Gerson F. Budke; Francisco Vasques; Paulo Portugal (J. Sens. Actuator Networks, 2017)

Superframe Duration Allocation Schemes to Improve the Throughput of Cluster-Tree Wireless Sensor Networks. - Érico Leão; Carlos Montez; Ricardo de Moraes; Paulo Portugal; Francisco Vasques (Sensors, 2017)

Alternative Path Communication in Wide-Scale Cluster-Tree Wireless Sensor Networks Using Inactive Periods. - Érico Leão; Carlos Montez; Ricardo de Moraes; Paulo Portugal; Francisco Vasques (Sensors, 2017)

A Temperature-Dependent Battery Model for Wireless Sensor Networks. - Leonardo Martins Rodrigues; Carlos Montez; Ricardo de Moraes; Paulo Portugal; Francisco Vasques (Sensors, 2017)

On the Computing of Area Coverage by Visual Sensor Networks: Assessing Performance of Approximate and Precise Algorithms. - Thiago C. Jesus; Daniel G. Costa; Paulo Portugal (INDIN, 2018)

A Hybrid Beacon Scheduling Scheme to Allow the Periodic Reconfiguration of Large-scale Cluster-tree WSNs. - Érico Leão; Vitor Vasconcelos; Paulo Portugal; Carlos Montez; Ricardo de Moraes (INDIN, 2018)

Multiple Mobile Sinks in Event-based Wireless Sensor Networks Exploiting Traffic Conditions in Smart City Applications. - Emerson S. Oliveira; João Paulo Just Peixoto; Daniel G. Costa; Paulo Portugal (INDIN, 2018)

An artifact for client-side cryptographic operations. - Paulo Portugal; Miguel Pazo; Álvaro Cuno; Fernando Zapata; Ricardo Saavedra (SCCC, 2018)

Automated Methodology for Dependability Evaluation of Wireless Visual Sensor Networks. - Thiago C. Jesus; Paulo Portugal; Francisco Vasques; Daniel G. Costa (Sensors, 2018)

Wireless visual sensor networks redeployment based on dependability optimization. - Thiago C. Jesus; Daniel G. Costa; Paulo Portugal (INDIN, 2019)

An artifact for X.509 digital certificates delivery. - Ronald Martinez; Alain Alejo; Paulo Portugal; Álvaro Cuno; Fernando Zapata; Ricardo Saavedra (SCCC, 2019)

Automatic Assignment of Emergency Vehicles in Response to Sensors-based Generated Alarms in Smart City Scenarios. - Daniel G. Costa; Francisco Vasques; Ana Aguiar; Paulo Portugal (ISC2, 2020)

FoV-Based Quality Assessment and Optimization for Area Coverage in Wireless Visual Sensor Networks. - Thiago C. Jesus; Daniel G. Costa; Paulo Portugal; Francisco Vasques (IEEE Access, 2020)

Modelling Coverage Failures Caused by Mobile Obstacles for the Selection of Faultless Visual Nodes in Wireless Sensor Networks. - Thiago C. Jesus; Daniel G. Costa; Paulo Portugal; Francisco Vasques; Ana Aguiar (IEEE Access, 2020)

On the Use of Cameras for the Detection of Critical Events in Sensors-Based Emergency Alerting Systems. - Daniel G. Costa; Francisco Vasques; Paulo Portugal; Ana Aguiar (J. Sens. Actuator Networks, 2020)

A Distributed Multi-Tier Emergency Alerting System Exploiting Sensors-Based Event Detection to Support Smart City Applications. - Daniel G. Costa; Francisco Vasques; Paulo Portugal; Ana Aguiar (Sensors, 2020)

A Comprehensive Dependability Model for QoM-Aware Industrial WSN When Performing Visual Area Coverage in Occluded Scenarios. - Thiago C. Jesus; Paulo Portugal; Daniel G. Costa; Francisco Vasques (Sensors, 2020)

A Mathematical Model to Evaluate Visual Sensing Coverage of Emergency Signs on Moving Vehicles. - Daniel G. Costa; Francisco Vasques; Paulo Portugal (ISC2, 2021)

A dependability-aware approach for dynamic mobile sink repositioning in smart cities applications. - Thiago C. Jesus; Daniel G. Costa; Paulo Portugal; Francisco Vasques (ISC2, 2022)

Optimizing the deployment of multi-sensors emergencies detection units based on the presence of response centers in smart cities. - João Paulo Just Peixoto; Daniel G. Costa; Washington de J. S. da Franca Rocha; Paulo Portugal; Francisco Vasques (ISC2, 2022)

A Survey of Emergencies Management Systems in Smart Cities. - Daniel G. Costa; João Paulo Just Peixoto; Thiago C. Jesus; Paulo Portugal; Francisco Vasques; Elivelton O. Rangel; Maycon L. M. Peixoto (IEEE Access, 2022)

A Survey on Monitoring Quality Assessment for Wireless Visual Sensor Networks. - Thiago C. Jesus; Daniel G. Costa; Paulo Portugal; Francisco Vasques (Future Internet, 2022)

Dynamic Sensor Configuration for Multi-target Emergency Detection in Smart Cities. - João Carlos N. Bittencourt; Daniel G. Costa; Paulo Portugal; Francisco Vasques (ISC2, 2023)

Dependability and Quality-Aware Connectivity in Smart Cities Applications. - Thiago C. Jesus; Daniel G. Costa; Paulo Portugal; Francisco Vasques; Wagner A. Ferreira (ISC2, 2023)

Enhancing the Computation of Risk Zones Based on Emergency-Related Infrastructure in Smart Cities. - João Paulo Just Peixoto; Daniel G. Costa; Washington de J. S. da Franca Rocha; Paulo Portugal; Francisco Vasques (ISC2, 2023)

CityZones: A geospatial multi-tier software tool to compute urban risk zones. - João Paulo Just Peixoto; Daniel G. Costa; Washington de J. S. da Franca Rocha; Paulo Portugal; Francisco Vasques (SoftwareX, 2023)

Evaluation of Machine Learning Methods for Fire Risk Assessment from Satellite Imagery. - João Carlos N. Bittencourt; Daniel G. Costa; Paulo Portugal; Francisco Vasques (EPIA (1), 2024)

A Survey on Adaptive Smart Urban Systems. - João Carlos N. Bittencourt; Daniel G. Costa; Paulo Portugal; Francisco Vasques (IEEE Access, 2024)

A geospatial multi-domain flood prediction tool exploiting open datasets. - João Paulo Just Peixoto; Daniel G. Costa; Paulo Portugal; Francisco Vasques (Softw. Impacts, 2024)

Exploiting geospatial data of connectivity and urban infrastructure for efficient positioning of emergency detection units in smart cities. - João Paulo Just Peixoto; João Carlos N. Bittencourt; Thiago C. Jesus; Daniel G. Costa; Paulo Portugal; Francisco Vasques (Comput. Environ. Urban Syst., 2024)

Reliability and Detectability of Emergency Management Systems in Smart Cities under Common Cause Failures. - Thiago C. Jesus; Paulo Portugal; Daniel G. Costa; Francisco Vasques (Sensors, 2024)