Sérgio Ivan Lopes
Sérgio Ivan Lopes
Professor of Cyber-Physical Systems, Instituto Politécnico de Viana do Castelo
Verified email at estg.ipvc.pt - Homepage
Cited by
Cited by
Accurate smartphone indoor positioning using a WSN infrastructure and non-invasive audio for TDoA estimation
SI Lopes, JMN Vieira, J Reis, D Albuquerque, NB Carvalho
Pervasive and Mobile Computing 20, 29-46, 2015
High accuracy 3D indoor positioning using broadband ultrasonic signals
SI Lopes, JMN Vieira, DF Albuquerque
Trust, Security and Privacy in Computing and Communications (TrustCom), 2012 …, 2012
MobiFree: a set of electronic mobility aids for the blind
SI Lopes, JMN Vieira, ÓFF Lopes, PRM Rosa, NAS Dias
Procedia Computer Science 14, 10-19, 2012
On the design of a Human-in-the-Loop Cyber-Physical System for online monitoring and active mitigation of indoor Radon gas concentration
SI Lopes, AM Cruz, PM Moreira, C Abreu, JP Silva, N Lopes, JMNV Vieira, ...
4th IEEE International Smart Cities Conference (ISC2) 2018, 2018
Indoor Radon concentration assessment in a set of single family houses: case study held in Barcelos, North of Portugal
A Curado, J Silva, L Carvalho, SI Lopes
Energy Procedia 136, 109-114, 2017
Design of Compact LoRa Devices for Smart Building Applications
SI Lopes, F Pereira, JMN Vieira, NB Carvalho, A Curado
Green Energy and Networking 269, 208-219, 2019
Short-term characterization of the indoor air radon concentration in a XII century monastery converted into a school building
SI Lopes, J Silva, A Antão, A Curado
Energy Procedia 153, 303-308, 2018
Characterization of the Near-Far problem in a CDMA-based acoustic localization system
T Aguilera, FJ Álvarez, A Sánchez, DF Albuquerque, JMN Vieira, SI Lopes
2015 IEEE International Conference on Industrial Technology (ICIT), 3404-3411, 2015
RnMonitor: a WebGIS-based platform for expedite in situ deployment of IoT edge devices and effective Radon Risk Management
SI Lopes, PM Moreira, AM Cruz, P Martins, F Pereira, A Curado
2019 IEEE International Smart Cities Conference (ISC2), 451-457, 2019
Impact of the human occupation on indoor radon concentration: a study based on in-situ measurements for a set of households in Alto-Minho, Portugal
A Curado, SI Lopes
BEHAVE 2016 – 4th European Conference on Behaviour and Energy Efficiency …, 2016
Indoor acoustic simulator for ultrasonic broadband signals with Doppler effect
DF Albuquerque, JMN Vieira, SI Lopes, CAC Bastos, PJSG Ferreira
Applied Acoustics 97, 140-151, 2015
High Performance Microwave Point-to-Point Link for 5G Backhaul with Flexible Spectrum Aggregation
S Juliao, F Martins, A Prata, SI Lopes, J Duarte, P Jesus, N Silva, ...
in Microwave Symposium (IMS), 2015 IEEE MTT-S International, At Phoenix, USA, 2015
OFDM pulse design with low PAPR for ultrasonic location and positioning systems
DF Albuquerque, JM Vieira, I Lopes, CA Bastos, P Ferreira
Proc. Int. Conf. Indoor Positioning Indoor Navigat. 28, 34-35, 2013
Challenges in Resource-Constrained IoT Devices: Energy and Communication as Critical Success Factors for Future IoT Deployment
F Pereira, R Correia, P Pinho, SI Lopes, NB Carvalho
Sensors 20 (22), 6420, 2020
Design of a cost-effective multimodal IoT edge device for building occupancy estimation
F Pereira, SI Lopes, NB Carvalho
2019 IEEE International Smart Cities Conference (ISC2), 122-128, 2019
Doppler resilient modulation in a CDMA-based acoustic local positioning system
DF Albuquerque, JMN Vieira, SI Lopes, T Aguilera, FJ Álvarez
2016 International Conference on Indoor Positioning and Indoor Navigation …, 2016
RnProbe: A LoRa-Enabled IoT Edge Device for Integrated Radon Risk Management
F Pereira, SI Lopes, NB Carvalho, A Curado
IEEE Access 8, 203488-203502, 2020
Radon Risk Management in public buildings in northwest Portugal: from short-term characterization to the design of specific mitigation actions
A Curado, JP Silva, SI Lopes
Int. J. Recent Technol. Eng 8 (1), 90-96, 2019
Precision livestock farming for reproductive performance optimization: a survey
SI Lopes, R Bexiga, JP Araújo, JL Cerqueira, C Abreu, C Paredes, ...
Food Futures – Ethics, Science & Culture. Edited by: I. Anna S. Olsson …, 2016
Analysis of the perceptual impact of high frequency audio pulses in smartphone-based positioning systems
SI Lopes, JMN Vieira, DF Albuquerque
Industrial Technology (ICIT), 2015 IEEE International Conference on, 3398-3403, 2015
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