Creating and sharing knowledge for telecommunications

IT Member Profile

... Manuel Alberto Reis de Oliveira Violas

Senior Researcher

Manuel Violas

Academic position: Assistant Professor
Joining date: 01-01-1999
Roles in IT: Senior Researcher
Thematic Line: Optics and Photonics
Group: Optical Communication Systems and Networking – Av

Email: Send Email
Address: IT – Aveiro
Instituto de Telecomunicações
Campus Universitário de Santiago
P-3810-193 AVEIRO - PORTUGAL
Tel: +351 234 377 900
Fax: +351 234 377 901

ORCID iD
https://www.orcid.org/0000-0003-1240-6430

Scientific Achievements

  • PhD, Universidade de Aveiro, 01-01-1999
3Supervision of PhD theses
As Supervisor
As Co-supervisor
2Supervision of MSc theses
As Co-supervisor
23Papers in Journals
  • F. Saghezchi, G. Mantas, M. Violas, A. M. O. D. Duarte, J. Rodriguez, Machine Learning for DDoS Attack Detection in Industry 4.0 CPPSs, Electronics, Vol. 11, No. 4, pp. 1 - 14, February, 2022,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • M. Sajedin, I. Elfergani, J. Rodriguez, R.A.A.Abd Abd-Alhameed, M. Barciela, M. Violas, Ultra-Compact mm-Wave Monolithic IC Doherty Power Amplifier for Mobile Handsets, Electronics, Vol. 10, No. 17, pp. 2131 - 2131, September, 2021 | BibTex
  • M. Sajedin, I. Elfergani, J. Rodriguez, R.A.A.Abd Abd-Alhameed, M. Violas, M. Barciela, A. Abdulkhaleq, Multi-Resonant Class-F Power Amplifier Design for 5G Cellular Networks, Radioengineering, Vol. 30, No. 2, pp. 372 - 380, June, 2021 | BibTex
  • A. Esfahani, G. Mantas, JCR Ribeiro, J. B. Bastos, S.M. Mumtaz, M. Violas, A. M. O. D. Duarte, J. Rodriguez, An Efficient Web Authentication Mechanism Preventing Man-In-The-Middle Attacks in Industry 4.0 Supply Chain, IEEE Access, Vol. Roadmap to 5G: Rising to the Challenge, No. 09595, pp. 1 - 10, April, 2019 | BibTex
  • M. Violas, Modeling and simulation of RSOA with a dual-electrode configuration, Microwave and Optical Tech. Letters, Vol. 59, No. 8, pp. 1824 - 1828, May, 2017 | BibTex
  • M. Violas, J.L. Lourenço, A. Silva, A. Gameiro, AN OFDM Platform for Wireless Systems Testing: Alamouti 2x1 MIMO Example, WSEAS Trans. on Communications, Vol. 13, No. 1, pp. 672 - 682, December, 2014,
    | Abstract     | BibTex
  • S. Hadzic, D. Yang, J. Rodriguez, M. Violas, RSS-based Near-Collinear Anchor aided Positioning Algorithm for Ill-conditioned Scenario, International Journal of Wireless Communications and Mobile Computing, Vol. 2, No. 1, pp. 18 - 18, November, 2014 | BibTex
  • W. Dghais Dghais, V. M. C. Ribeiro, Z. Liu, Z. Vujicic, M. Violas, A. Teixeira, Efficient RSOA Modelling using Polar Complex-Valued Neural Networks, Optics Communications, Vol. ?, No. ?, pp. 1 - 4, September, 2014,
    | Abstract     | BibTex
  • S. Hadzic, D. Yang, M. Violas, J. Rodriguez, Energy Efficient Mobile Tracking in Heterogeneous Networks using Node Selection, Eurasip Journal on Wireless Communications and Networking, Vol. 2014, No. 2, pp. 1 - 10, January, 2014 | BibTex
  • T. Pereira, M. Violas, J.L. Lourenço, A. Gameiro, A. Silva, C. Ribeiro, An FPGA Implementation of OFDM Transceiver for LTE Applications, Intrnl. Journal On Advances in Systems and Measurements, Vol. 6, No. 1-2, pp. 224 - 234, June, 2013,
    | Abstract     | Full text (PDF 958 KBs) | BibTex
  • Z. Liu, M. Violas, N.B.C. Carvalho, Modeling and Simulation of a Reflective Semiconductor Optical Amplifier Modulator Using X-Parameters®, IEEE Photonics Technology Letters, Vol. 25, No. 3, pp. 272 - 274, February, 2013 | BibTex
  • Z. Liu, M. Violas, N.B.C. Carvalho, Wideband Dynamic Behavioral Modeling of Reflective Semiconductor Optical Amplifiers Using a Tapped-Delay Multilayer Perceptron, Optics Express, Vol. 21, No. 3, pp. 3354 - 3362, February, 2013 | BibTex
  • Z. Liu, M. Violas, N.B.C. Carvalho, Analysis on Dynamic Characteristics of Reflective Semiconductor Optical Amplifier Based on a Memory Polynomial Model, Microwave and Optical Tech. Letters, Vol. 54, No. 3, pp. 805 - 808, March, 2012,
    | Abstract     | BibTex
  • D. Wake, A. Nkansah, P. Assimakopoulos, N. J. G. Gomes, M. Violas, Z. Liu, S. Pato, F. M. Ferreira, G. Valicourt, R. Brenot, Rádio sobre Fibra, Revista RTI - Redes, Telecom e Instalações, Vol. -, No. -, pp. 52 - 63, November, 2011 | BibTex
  • Z. Liu, M. Violas, N.B.C. Carvalho, Digital Predistortion for RSOAs as External Modulators in Radio over Fiber Systems, Optics Express, Vol. 19, No. 18, pp. 17641 - 17646, August, 2011,
    | Abstract     | BibTex
  • Z. Liu, M. Sadeghi, G. Valicourt, R. Brenot, M. Violas, Experimental Validation of a Reflective Semiconductor Optical Amplifier Model Used as a Modulator in Radio Over Fiber Systems, IEEE Photonics Technology Letters, Vol. 23, No. 9, pp. 576 - 578, May, 2011,
    | Abstract     | BibTex
  • M. Violas, D. Wake, F. Van Dijk, C. Ware, A. Enard, D. Make, Z. Liu, M. Lamponi, R. Brenot, Radio-Over-Fiber Access Network Architecture Based on New Optimized RSOA Devices With Large Modulation Bandwidth and High Linearity, IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 11, pp. 3248 - 3258, November, 2010,
    | Abstract     | BibTex
  • G. Valicourt, F. Pommereau, F. Poingt, M. Lamponi, G. H. Duan, M. Violas, R. Brenot, Chirp Reduction in Directly Modulated Multi-Electrode RSOA Devices in Passive Optical Networks, IEEE Photonics Technology Letters, Vol. 22, No. 19, pp. 1425 - 1427, October, 2010,
    | Abstract     | BibTex
  • D. Wake, A. Nkansah, N. J. G. Gomes, G. Valicourt, R. Brenot, M. Violas, Z. Liu, F. M. Ferreira, S. Pato, A Comparison of Radio over Fiber Link Types for the Support of Wideband Radio Channels, Journal of Lightwave Technology, Vol. 28, No. 16, pp. 2416 - 2422, August, 2010,
    | Abstract     | BibTex
  • M. V. Drummond, R.N. Nogueira, M. Violas, P. Monteiro, C. Sterner, P.-Y. Fonjallaz, All-Optical generation of 40 Gb/s Single Sideband Signals Using a Fiber Bragg Grating, Optics Communications, Vol. 283, No. 12, pp. 2492 - 2495, June, 2010,
    | Abstract     | BibTex
  • M. V. Drummond, R.N. Nogueira, P. Monteiro, M. Violas, C. Sterner, P.-Y. Fonjallaz, Tunable Optical Dispersion Compensator based on Power Splitting between Two Dispersive Media, Journal of Lightwave Technology, Vol. 28, No. 8, pp. 1164 - 1175, April, 2010,
    | Abstract     | BibTex
  • M. Madureira, D. Fonseca, M. Violas, R. Aguiar, A. Cartaxo, P. Monteiro, Postdetection adjustable simultaneous compensation of DGD and GVD in a 40-Gb/s optical single-sideband system, IEEE Photonics Technology Letters, Vol. 19, No. 18, pp. 1356 - 1358, September, 2007 | BibTex
  • Luís M. R. Teixeira, P. Monteiro, M. Violas, A. Teixeira, J. M. Santos, Adaptive Chromatic Dispersion Compensation Using Electrical Transversal Filters, Revista do Departamento de Electrónica e de Telecomunicações, Universidade de Aveiro, Vol. 4, No. 2, pp. 186 - 190, January, 2004 | BibTex
32Papers in Conferences
  • M. Sajedin, J. Rodriguez, I. Elfergani, R. Abd_Alhameed, M. Barciela, M. Violas, Energy Efficient and Wideband Class-J Doherty Power Amplifier, ” I2th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing- CSNDSP, Porto, Portugal, July, 2020 | BibTex
  • M. Sajedin, I. Elfergani, J. Rodriguez, R.A.A.Abd Abd-Alhameed, M. Violas, M. Barciela, a Abdulkhaleq, Design of a Wideband Harmonically Tuned Class-J Power Amplifier, International Multi-Disciplinary Conference Theme: “Sustainable Development and Smart Planning”, Antalya, Turkey, April, 2020 | BibTex
  • M. Violas, J. Carvalho, D. Castanheira, A. Gameiro, Development and Evaluation of an OFDM Radar in a FPGA, IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM), Victorioa, Canada, August, 2019 | BibTex
  • T.P. Pereira, M. Violas, A. Gameiro, C. Ribeiro, J.L. Lourenço, Real Time FPGA based Testbed for OFDM Development with ML synchronization, IARIA International Conf. on Systems and Networks Communications - ICNS, Lisbon, Portugal, Vol. 1, pp. 1 - 5, November, 2012,
    | Abstract     | BibTex
  • Z. Liu, M. Violas, N.B.C. Carvalho, Transmission of Four Channels SCM Over Fiber and Nonlinear Compensation for RSOA External Modulators, IEEE GLOBECOM Workshops: Distributed Antenna Systems for Broadband Mobile Communication, Houston, United States, Vol. -, pp. 1 - 5, December, 2011,
    | Abstract     | BibTex
  • Z. Liu, M. Violas, M. Sadeghi, G. Valicourt, 4 Channels Subcarrier Multiplexing Optical Link Using an RSOA Modulator, IEEE International Topical Meeting on Microwave Photonics, Montreal, Canada, Vol. --, pp. 128 - 130, October, 2010,
    | Abstract     | BibTex
  • D. Wake, A. Nkansah, N. J. G. Gomes, M. Violas, Z. Liu, S. Pato, F. M. Ferreira, G. Valicourt, R. Brenot, Design and Performance of Radio over Fibre Links for Next Generation Wireless Systems using Distributed Antennas, Future Network and Mobile Summit, Florence, Italy, Vol. --, pp. -- - --, June, 2010,
    | Abstract     | BibTex
  • M. V. Drummond, R.N. Nogueira, P. Monteiro, M. Violas, P.-Y. Fonjallaz, Novel Opto-Electrical Tunable Dispersion Compensator for IM Signals, European Conference on Optical Communication ECOC, Vienna, Austria, Vol. P3.06, pp. 1 - 2, September, 2009,
    | Abstract     | BibTex
  • R.N. Nogueira, M. V. Drummond, C. Marques, A. Teixeira, P.S André, M. Violas, P. Monteiro, P.-Y. Fonjallaz, All-optical signal processing techniques with fiber based devices, International Conf. on Transparent Networks – ICTON, Azores, Portugal, Vol. -, pp. - - -, July, 2009 | BibTex
  • R.N. Nogueira, M. V. Drummond, M. Violas, P. Monteiro, Tunable Passive Compensating Devices for High Bit Rate Optical Systems, International Conf. on Transparent Networks – ICTON, Athens, Greece, Vol. Th.B1.2, pp. 266 - 269, July, 2008,
    | Abstract     | BibTex
  • P. Monteiro, M. Madureira, D. Fonseca, R. Aguiar, A. Cartaxo, M. Violas, Optical Channel Impairments Mitigation on 40 Gb/s Systems Resorting to Post-Detection Adjustable Electrical Compensation, International Conf. on Transparent Networks – ICTON, Rome, Italy, Vol. 1, pp. 20 - 23, July, 2007 | BibTex
  • R. Aguiar, P. Monteiro, M. Madureira, D. Fonseca, A. Cartaxo, M. Violas, Electronic dispersion compensation solution for high-speed optical fiber communications, Symp. on Innovative Lightwave Technology Evolution for 100GbE Services, 0, Japan, Vol. 0, pp. 0 - 0, March, 2007 | BibTex
  • D. Fonseca, A. Cartaxo, P. Monteiro, T. Silveira, A. Ferreira, M. Violas, 40 Gbit/s OSSB-NRZ transmitter for high capacity systems, European Conference on Optical Communication ECOC, Glasgow, United Kingdom, Vol. 4, pp. 787 - 788, September, 2005 | BibTex
  • A.P.S. Ferreira, T. Silveira, R. Ribeiro, P. Monteiro, M. Violas, A. Teixeira, Mitigation of Chromatic Dispersion Effects on Optical Single Sideband Signals by Butterworth Filtering, International Conf. on Transparent Networks – Mediterranean Winter - ICTON MW, Barcelona, Spain, Vol. 2, pp. 76 - 79, July, 2005 | BibTex
  • P. Montero, M. Violas, R. Ribeiro, Luís M. R. Teixeira, M. Madureira, R. Aguiar, R. F. Rocha, Adaptive Electronic Equalizers for Very High Speed Optical Communication Systems, Symp. on Enabling Optical Networks - SEON, Aveiro, Portugal, Vol. 1, pp. 2 - 3, June, 2005 | BibTex
  • R. Aguiar, M. Madureira, M. Violas, P. Monteiro, An Electrically Adjustable Distributed Pulse Shaping Filter for 40-Gbit/s Optical Links, IEEE International Symp. on Circuits and Systems - ISCAS, Kobe, Japan, Vol. 1, pp. 1 - 1, May, 2005 | BibTex
  • R. Aguiar, M. Madureira, P. Monteiro, M. Violas, Practical Implementations Of Monolithic Transversal Filters For Electric Dispersion Compensation On High-Speed Optical Links, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 0, pp. 0 - 0, May, 2005 | BibTex
  • A.P.S. Ferreira, T. Silveira, P. Monteiro, R. Ribeiro, M. Violas, R. F. Rocha, Robustness analysis of a 40Gb/s Optical Single Side Band Transmitter with electrical dispersion compensation, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. cd, pp. cd - cd, April, 2005 | BibTex
  • Luís M. R. Teixeira, M. Violas, Feasibility of Transversal Filters for Adaptive Chromatic Dispersion Compensators in Multigigabit Optical Communication Systems, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 1, pp. - - -, April, 2005 | BibTex
  • M. Madureira, P. Monteiro, R. Aguiar, M. Violas, Practical implementaions of monolithic transversal filters for electric dispersion compensation on high-speed optical links, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. 0, pp. 0 - 0, April, 2005 | BibTex
  • J. Machado, Luís M. R. Teixeira, M. Madureira, J. M. Santos, P. Monteiro, A. N. Pinto, M. Violas, Dynamic Electronic Dispersion Compensation for Efficient Micro & Millimetre Wave Optical Transceivers, Photonic Signal Processing for Defence Applications, Rome, Italy, Vol. -, pp. - - -, March, 2005 | BibTex
  • T. Silveira, A.P.S. Ferreira, P. Monteiro, M. Violas, R. Ribeiro, R. F. Rocha, Luís M. R. Teixeira, Electrical Dispersion Compensation at 10Gb/s Optical Single Sideband Transmission Systems, IEEE Lasers and Electro Optics Society Annual Meeting - LEOS, San Juan, Puerto Rico, Vol., pp. 759 - 760, November, 2004 | BibTex
  • P. Monteiro, Luís M. R. Teixeira, M. Violas, R. Ribeiro, A. Teixeira, R. F. Rocha, Adaptive Electronic Equalizers for Multigigabit Optical Communication Systems, International Symp. in Circuits and Systems, Linz, Austria, Vol. -, pp. 200 - 203, August, 2004 | BibTex
  • Luís M. R. Teixeira, P. Monteiro, M. Violas, A. Teixeira, Optical Signal Monitoring for Adaptive Equalization Using Transversal Filters, Symp. on Enabling Optical Networks - SEON, Porto, Portugal, Vol. 1, pp. 101 - 102, June, 2004 | BibTex
  • P. Monteiro, M. Violas, R. Ribeiro, R. F. Rocha, Electronic Post-detection Filter for Multigigabit Optical Communication Systems, IEEE International Symp. on Electron Devices for Microwave and Optoelectronics Applications, Orlando, United States, Vol. 03TH8691, pp. 192 - 197, November, 2003 | BibTex
  • T. Maia, R. Ribeiro, P. Monteiro, M. Violas, 10Gbit/s Optical Single Sideband Transmission using Zero Forcing Equalization, International Conf. on Wireless and Optical Communications - WOC, Banff, Canada, Vol. 1, pp. 104 - 109, July, 2003 | BibTex
  • T. Maia, M. Violas, P. Monteiro, R. Ribeiro, 10Gbit/s Optical Single Sideband Transmitter, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 241 - 244, June, 2003 | BibTex
  • R. Aguiar, M. Madureira, P. Monteiro, M. Violas, M. Gloanec, E. Leclerc, B. Lefebvre, Broadband Optical Receiver for Multigigabit-per-second (40Gb/s) Optical Communication Systems in 0.135ƒÝm PHEMT technology, IEEE International Symp. on Circuits and Systems - ISCAS, Bangkoq, Thailand, Vol. 1, pp. 409 - 412, May, 2003 | BibTex
  • R. Aguiar, M. Madureira, P. Monteiro, M. Violas, M. Gloanec, E. Leclerc, B. Lefebvre, High Gain GaAs 10Gbps Receiver with Integrated Bondwire Effects, IEEE International Symp. on Circuits and Systems - ISCAS, Bangkoq, Thailand, Vol. 1, pp. 173 - 176, March, 2003 | BibTex
  • R. Aguiar, M. Madureira, P. Monteiro, M. Violas, M. Gloanec, E. Leclerc, B. Lefebvre, Broadband Optical Receiver for Multigigabit-per-second (40Gb/s) Optical Communications Systems, IEEE International Symp. on Electron Devices for Microwave and Optoelectronics Applications, Manchester, United Kingdom, Vol. 1, pp. 271 - 275, November, 2002 | BibTex
  • P. Monteiro, M. Violas, R. Ribeiro, R. F. Rocha, Active Distributed Transversal Filters for Multigigabit Optical Communication Systems, International Workshop on Microwave Filters, Touluse, France, Vol. -, pp. - - -, June, 2002 | BibTex
  • P. Monteiro, R. Ribeiro, M. Violas, R. F. Rocha, 40 Gbit/s GaAs MMIC Signal Processor for Optical Communication Systems, Gallium Arsenide Applications Symp. - GAAS, London, United Kingdom, Vol. -, pp. 615 - 618, September, 2001 | BibTex
1Patents
  • R.N. Nogueira, M. Violas, M. V. Drummond, Filtro óptico com resposta sintonizável de forma contínua baseado na combinação de diferentes filtros ópticos, PT104237, National, Granted, 28-10-2008, Portugal

Currently running projects3

Acronym Name Funding Agency Start date Ending date
6G-MUSICAL 6G MUltiband Wireless and Optical Signalling for Integrated CommunicAtions, Sensing and Localization (6G-MUSICAL) EU 01-01-2024 31-12-2026
ORCIP Optical Radio Convergence Infrastructure for Communications and Power Delivering PO Centro 01-05-2017 30-04-2029
REVOLUTION REVOLUTIONIZING RADAR THROUGH COMMUNICATIONS TOWARDS ENVIRONMENT SENSING FCT/PTDC 01-03-2023 28-02-2026

Closed Projects23

Acronym Name Funding Agency Start date Ending date
5G SI I&DT Copromoção Nr. 024539 - Componentes e serviços para redes 5G P2020 01-01-2018 30-06-2021
ATLAS All-optical Terabit per second Lambda-Shifted transmission EU 01-01-2000 31-12-2002
BENEFIC Best ENergy EFficiency solutions for heterogeneous multI-core Communicating systems QREN 01-01-2014 01-06-2015
CelCop Multicell Cooperation for Future Wireless Systems IT/LA 01-06-2011 01-10-2013
COPWIN Coordinated MultiPoint Strategies for Future Wireless Networks FCT/PTDC 01-07-2013 01-01-2016
CROWN Co-operative Radio over Fibre for Wireless Networks FCT/PTDC 01-03-2011 01-02-2014
DiNEq Digital Nonlinear Equalization in Very-High Speed Coherent Optical Transmission Systems FCT/PTDC 01-07-2013 01-06-2015
DiRecTRadio All-Digital Reconfigurable System-on-Chip Transmitter for Cognitive Radio Systems IT/LA 01-07-2011 01-06-2013
ETOBLU Terminal Optical Equipments for Single Side Band ADI 01-09-2003 28-02-2005
ETOBLU Terminal Equipments for Optical Single Side Band Transmission Siemens Networks SA 01-10-2004 31-12-2006
FUTON Fibre Optic Networks for Distributed, Extendible Heterogeneous Radio Architectures and Service Provisioning EU/FP7 01-01-2008 01-06-2010
FUTON Fibre Optic Networks for Distributed, Extendible Heterogeneous Radio Architectures and Service Provisioning EU/FP7 01-01-2008 01-06-2010
HETCOP Joint Cooperative and Cognitive Strategies for Heterogeneous Wireless Systems IT/LA 01-04-2014 01-07-2016
ISIS InfraStructures for broadband access in wireless/photonics and Integration of Strengths in Europe EU 01-01-2006 31-12-2008
MASSIVE5G Multi-band Access Strategies for 5G Cooperative Networks FCT/POCI 01-06-2018 28-02-2022
OPTRONET OPtimized Transponders for Robust NETworks ADI, Nokia Siemens Networks SA 01-01-2006 30-06-2008
OPTRONET OPtimized Transponders for Robust Optical NETworks ADI 01-01-2006 01-06-2008
PHOTON Distributed and Extendible Heterogeneous Radio Architectures using FCT/PTDC 01-11-2007 01-11-2010
PURE-5GNET Cooperative Multi-band Access Strategies for 5G Ultra Dense Networks IT, FCT 01-04-2016 01-09-2018
Q.DOT SI I&DT Copromoção Nr. 039728 - Distributed Quantum Oblivious Transfer P2020 01-10-2019 30-06-2022
RETIOT Utilização de Tecnologias de Reflectometría no melhoramento do futuro Internet das Coisas e Sistemas Ciber-Físicos P2020 09-01-2017 30-06-2021
THE MOST Transimpedance Highly Efficient Micro & millimetrewave Optical Smart Transceiver ADI 01-01-2003 31-12-2006
TOBLU Single Side Band Optical Transmission FCT/POSI 01-01-2001 30-06-2004
1Prototypes
  • P. Monteiro, T. Maia, M. Violas, R. Ribeiro, R. F. Rocha, 10 Gbit/s Optical Single Side Band Transmission System
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