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V. Christofilakis · SciRah

Researcher profile · Semantic Scholar

V. Christofilakis

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V. Christofilakis — researcher profile on SciRah

h-index: 13
Works: 68
Citations: 544

Most-cited papers

Performance of Turbo Coded OFDM Under the Presence of Various Noise Types
Spyridon K Chronopoulos, V. Christofilakis, Giorgos Tatsis, P. Kostarakis
2015Wireless personal communications36 citations Open access
Semantic Scholar
A Prototype Photoplethysmography Electronic Device that Distinguishes Congestive Heart Failure from Healthy Individuals by Applying Natural Time Analysis
G. Baldoumas, D. Peschos, Giorgos Tatsis, Spyridon K Chronopoulos +8 more
2019Electronics33 citations Open access
Semantic Scholar
A new portable ELF Schumann resonance receiver: design and detailed analysis of the antenna and the analog front-end
C. Votis, Giorgos Tatsis, V. Christofilakis, Spyridon K Chronopoulos +3 more
2018EURASIP Journal on Wireless Communications and Networking27 citations Open access
Semantic Scholar
Geometry Aspects and Experimental Results of a Printed Dipole Antenna
C. Votis, V. Christofilakis, P. Kostarakis
2010International Journal of Communications, Network and System Sciences27 citations Open access
Semantic Scholar
Earth-to-Earth Microwave Rain Attenuation Measurements: A Survey On the Recent Literature
V. Christofilakis, Giorgos Tatsis, Spyridon K Chronopoulos, A. Sakkas +5 more
2020Symmetry25 citations Open access
Semantic Scholar
A Frequency-Selective Reconfigurable Antenna for Wireless Applications in the S and C Bands
A. Sakkas, Vasilis Oikonomou, Giorgos Mystridis, V. Christofilakis +4 more
2023Italian National Conference on Sensors23 citations Open access
Semantic Scholar
Significant ELF perturbations in the Schumann Resonance band before and during a shallow mid-magnitude seismic activity in the Greek area (Kalpaki)
V. Christofilakis, Giorgos Tatsis, C. Votis, I. Contopoulos +2 more
2019Journal of Atmospheric and Solar-Terrestrial Physics23 citations
Semantic Scholar
Pre-seismic Electromagnetic Perturbations in Two Earthquakes in Northern Greece
K. Florios, I. Contopoulos, V. Christofilakis, G. Tatsis +3 more
2019Pure and Applied Geophysics21 citations
Semantic Scholar
Attack Detection for Healthcare Monitoring Systems Using Mechanical Learning in Virtual Private Networks over Optical Transport Layer Architecture
V. Liagkou, Vasileios Kavvadas, Spyridon K Chronopoulos, D. Tafiadis +2 more
2019De Computis20 citations Open access
Semantic Scholar
Preliminary BER Study of a TC - OFDM system operating under noisy conditions
Spyridon K Chronopoulos, Electronics Telecommunications Physics Depart ment, V. Christofilakis, Giorgos Tatsis +1 more
201619 citations Open access
Semantic Scholar
A rain estimation model based on microwave signal attenuation measurements in the city of Ioannina, Greece
V. Christofilakis, Giorgos Tatsis, C. Lolis, Spyridon K Chronopoulos +3 more
2020Meteorological Applications18 citations Open access
Semantic Scholar
A prototype data acquisition and processing system for Schumann resonance measurements
Giorgos Tatsis, C. Votis, V. Christofilakis, P. Kostarakis +2 more
201518 citations Open access
Semantic Scholar
Fetus Heart Rate Monitoring: A Preliminary Research Study With Remote Sensing
Anastasios G. Skrivanos, Evangelia I. Kosma, Spyridon K Chronopoulos, I. Kouretas +7 more
2022IEEE Consumer Electronics Magazine17 citations
Semantic Scholar
Study of the variations in the Schumann resonances parameters measured in a southern Mediterranean environment.
G. Tatsis, V. Christofilakis, Spyridon K Chronopoulos, G. Baldoumas +7 more
2020Science of the Total Environment13 citations
Semantic Scholar
Reducing Peak-to-Average Power Ratio of a Turbo Coded OFDM
Spyridon K Chronopoulos, V. Christofilakis, Giorgos Tatsis, P. Kostarakis
201213 citations Open access
Semantic Scholar
Correlation of local lightning activity with extra low frequency detector for Schumann Resonance measurements.
G. Tatsis, A. Sakkas, V. Christofilakis, G. Baldoumas +7 more
2021Science of the Total Environment12 citations
Semantic Scholar
Performance of UWB-Impulse Radio Receiver Based on Matched Filter Implementation with Imperfect Channel Estimation
Giorgos Tatsis, C. Votis, V. Raptis, V. Christofilakis +4 more
201012 citations
Semantic Scholar
How Effective and Prerequisite Are Electromagnetic Extremely Low Frequency (ELF) Recordings in the Schumann Resonances Band to Function as Seismic Activity Precursors
V. Tritakis, I. Contopoulos, J. Mlynarczyk, V. Christofilakis +2 more
2022Atmosphere11 citations Open access
Semantic Scholar
Design and Implementation of a Test Fixture for ELF Schumann Resonance Magnetic Antenna Receiver and Magnetic Permeability Measurements
Giorgos Tatsis, V. Christofilakis, Spyridon K Chronopoulos, P. Kostarakis +3 more
202011 citations Open access
Semantic Scholar
Possible earthquake forecasting in a narrow space-time-magnitude window
K. Florios, I. Contopoulos, G. Tatsis, V. Christofilakis +3 more
2020Earth Science Informatics11 citations
Semantic Scholar
Outage performance of mixed, parallel and serial DF relayed FSO links over weak turbulence channels with nonzero boresight pointing errors
G. K. Varotsos, H. Nistazakis, A. Stassinakis, G. Tombras +2 more
2018International Conference on Modern Circuits and Systems Technologies11 citations
Semantic Scholar
Remote sensing natural time analysis of heartbeat data by means of a portable photoplethysmography device
G. Baldoumas, D. Peschos, G. Tatsis, V. Christofilakis +8 more
2020International Journal of Remote Sensing10 citations
Semantic Scholar
Design and Implementation of Ultra-Wideband Impulse Radio Transmitter
Giorgos Tatsis, C. Votis, V. Raptis, V. Christofilakis +4 more
2010AIP Conference Proceedings10 citations
Semantic Scholar
Preliminary Measurements of Schumann’s Resonances (SR) in the Greek
Giorgos Tatsis, C. Votis, V. Christofilakis, P. Kostarakis +3 more
20169 citations Open access
Semantic Scholar
Extremely Low Frequency (ELF) Electromagnetic Signals as a Possible Precursory Warning of Incoming Seismic Activity
V. Tritakis, J. Mlynarczyk, I. Contopoulos, J. Kubisz +4 more
2024Atmosphere8 citations Open access
Semantic Scholar
Harnessing the Radio Frequency Power Level of Cellular Terminals for Weather Parameter Sensing
A. Sakkas, V. Christofilakis, C. Lolis, Spyridon K Chronopoulos +1 more
2024Electronics7 citations Open access
Semantic Scholar
Rainfall Measurements Due to Radio Frequency Signal Attenuation at 2 GHz
V. Christofilakis, Giorgos Tatsis, Constantinos T. Votis, Spyridon K Chronopoulos +3 more
20187 citations Open access
Semantic Scholar
Anthropogenic Noise and Its Footprint on ELF Schumann Resonance Recordings
V. Tritakis, I. Contopoulos, C. Florios, G. Tatsis +3 more
2021Frontiers in Earth Science6 citations Open access
Semantic Scholar
BER Performance of an Ultra-Wideband Impulse Radio Correlator Receiver
Giorgos Tatsis, V. Christofilakis, C. Votis, P. Kostarakis +2 more
20126 citations
Semantic Scholar
Active Tuning Antennas for Wireless Communication
V. Raptis, Giorgos Tatsis, C. Votis, Spyridon K Chronopoulos +2 more
20106 citations
Semantic Scholar
Tuning Techniques for Planar Antennas in Wireless Communication
V. Raptis, Giorgos Tatsis, C. Votis, Spyridon K Chronopoulos +2 more
20106 citations
Semantic Scholar
DF Relayed OOK and PAM FSO Links with Turbulence and Time Jitter
P. J. Gripeos, H. Nistazakis, G. D. Roumelas, V. Christofilakis +2 more
20202020 International Conference on Broadband Communications for Next Generation Networks and Multimedia Applications (CoBCom)5 citations
Semantic Scholar
Design and implementation of Schumann resonances sensor platform
C. Votis, Giorgos Tatsis, V. Christofilakis, P. Kostarakis +2 more
2016Journal of Engineering Science and Technology Review5 citations Open access
Semantic Scholar
Design and analysis of a multiple-output transmitter based on DDS architecture for modern wireless communications
C. Votis, V. Christofilakis, V. Raptis, Giorgos Tatsis +2 more
20105 citations
Semantic Scholar
Anthropogenic Sources of Electromagnetic Interference in the Lowest ELF Band Recordings (Schumann Resonances)
J. Mlynarczyk, V. Tritakis, I. Contopoulos, Z. Nieckarz +3 more
2022Magnetism4 citations Open access
Semantic Scholar
Outage capacity estimation of FSO links with pointing errors over gamma turbulence channels
A. Stassinakis, H. Nistazakis, G. Varotsos, G. Tombras +2 more
2016International Conference on Modern Circuits and Systems Technologies4 citations
Semantic Scholar
Measurements of Balun and Gap Effects in a Dipole Antenna
C. Votis, V. Christofilakis, P. Kostarakis
2010International Journal of Communications, Network and System Sciences4 citations Open access
Semantic Scholar
A/D Restrictions (Errors) in Ultra-Wideband Impulse Radios
Giorgos Tatsis, C. Votis, V. Raptis, V. Christofilakis +1 more
2010International Journal of Communications, Network and System Sciences4 citations Open access
Semantic Scholar
A Machine Learning-Based Heart Disease Detection Scheme for Predicting Spontaneous Termination of Atrial Fibrillation
Anastasios G. Skrivanos, Ioannis Kouretas, Spyridon K Chronopoulos, V. Christofilakis +2 more
2025IEEE Access3 citations Open access
Semantic Scholar
Measuring Precipitation via Microwave Bands with a High-Accuracy Setup
A. Sakkas, V. Christofilakis, C. Lolis, Spyridon K Chronopoulos +1 more
2024Italian National Conference on Sensors3 citations Open access
Semantic Scholar
THz Links Performance Study for Gamma Turbulence Links with Path Loss and Pointing Errors
G. Varotsos, E. V. Chatzikontis, E. Kapotis, H. Nistazakis +2 more
2022International Conference on Modern Circuits and Systems Technologies3 citations
Semantic Scholar
Artificial Empathetic Intelligence for Leadership in Energy and Environmental Design Buildings
Spyridon K Chronopoulos, Evangelia I. Kosma, N. Ziavra, V. Christofilakis +2 more
20222022 International Conference on Machine Learning, Big Data, Cloud and Parallel Computing (COM-IT-CON)3 citations
Semantic Scholar
Effects of Variations on Geometrical Parameters on a 2.4 GHz Printed Dipole Antenna architecture
C. Votis, V. Christofilakis, V. Raptis, Giorgos Tatsis +2 more
20103 citations
Semantic Scholar
Software Defined Radio Implementation aspects related to the ADC performance
V. Christofilakis, A. Alexandridis, P. Kostarakis, K. Dangakis
20023 citations
Semantic Scholar
A portable RF signal attenuation testbed
A. Sakkas, V. Christofilakis, Giorgos Tatsis, G. Baldoumas +2 more
2023International Conference on Modern Circuits and Systems Technologies2 citations
Semantic Scholar
Time and Spatial Jitter Influence on the Performance of FSO Links with DF Relays and OC Diversity Over Turbulence Channels
P. J. Gripeos, H. Nistazakis, A. Tsigopoulos, V. Christofilakis +1 more
2021Photonics2 citations Open access
Semantic Scholar
Comparison of the R-R intervals in ECG and Oximeter signals to be used in complexity measures of Natural Time Analysis
G. Baldoumas, D. Peschos, G. Tatsis, C. Votis +7 more
2018International Conference on Modern Circuits and Systems Technologies2 citations
Semantic Scholar
CDMA radio on FSO links over gamma turbulence channels with nonzero boresight pointing errors
Michalis P. Ninos, H. Nistazakis, A. Stassinakis, G. Tombras +2 more
2018International Conference on Modern Circuits and Systems Technologies2 citations
Semantic Scholar
Rainfall events' correlation with S-band signal attenuation
Giorgos Tatsis, C. Votis, V. Christofilakis, Spyridon K Chronopoulos +4 more
2018International Conference on Modern Circuits and Systems Technologies2 citations
Semantic Scholar
Analog front end of the extremely low frequency station at Ioannina in Greece for the measurement of Schumann resonances
C. Votis, Giorgos Tatsis, V. Christofilakis, P. Kostarakis +2 more
20172017 Panhellenic Conference on Electronics and Telecommunications (PACET)2 citations
Semantic Scholar

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Spyridon K Chronopoulos×31
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V. Tritakis — researcher profile on SciRah

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