Fotis I. Lazarakis

69 papers B 14Journal 41Unranked 14
YearRankTypeTitle / Venue / Authors
2025 J jnl
Optimizing bandwidth allocation in mmWave/sub-THz cellular networks using maximum flow algorithms.
Comput. Commun.
Kyriakos N. Manganaris, Panagiotis Promponas, Aris Tsolis, Fotis I. Lazarakis, Kostas P. Peppas
2025 J jnl
Performance Analysis in the D-Band: A Pearson Type I Distribution Approach for Indoor and Outdoor Environments.
IEEE Trans. Commun.
Dimitrios G. Selimis, Mar Francis D. De Guzman, Katsuyuki Haneda, Nikos C. Sagias, Fotis I. Lazarakis, Kostas P. Peppas
2024 B conf
ETHER: A 6G Architectural Framework for 3D Multi-Layered Networks.
WCNC
Konstantinos Ntontin, Lechoslaw Tomaszewski, Joan Adrià Ruiz-de-Azua, Andrés Cárdenas, R. Pueyo Centelles, C.-K. Lin, Agapi Mesodiakaki, A. Antonopoulos, Nikolaos Pappas, Marco Fiore, Sergio Aguilar, S. Watts, P. Harris, A. R. Santiago, Fotis I. Lazarakis, M. Calisti, Symeon Chatzinotas
2024 J jnl
Path loss, angular spread and channel sparsity modeling for indoor and outdoor environments at the sub-THz band.
Phys. Commun.
Dimitrios G. Selimis, Mar Francis D. De Guzman, Kyriakos N. Manganaris, Fotis I. Lazarakis, Katsuyuki Haneda, Kostas P. Peppas
2023 — conf
ETHER: Energy- and Cost-Efficient Framework for Seamless Connectivity over the Integrated Terrestrial and Non-terrestrial 6G Networks.
AIAI (Workshops)
Lechoslaw Tomaszewski, Robert Kolakowski, Agapi Mesodiakaki, Konstantinos Ntontin, Angelos Antonopoulos, Nikolaos Pappas, Marco Fiore, Mohammadreza Mosahebfard, Simon Watts, Philip Harris, Chih-Kuang Lin, Ana Rita Santiago, Fotis I. Lazarakis, Symeon Chatzinotas
2023 J jnl
On the Performance Analysis of RIS-Empowered Communications Over Nakagami-m Fading.
CoRR
Dimitrios Selimis, Kostas P. Peppas, George C. Alexandropoulos, Fotis I. Lazarakis
2023 J jnl
Using Burr Type XII distribution for user - Nearest access point distance modelling in finite Poisson networks with edge effect.
Phys. Commun.
Kyriakos N. Manganaris, Dimitrios G. Selimis, Fotis I. Lazarakis, Kostas P. Peppas
2023 — conf
Using Fulkerson-Ford Algorithm for UE - AP Association in mmWave Cellular Networks.
MOCAST
Kyriakos N. Manganaris, Fotis I. Lazarakis, Kostas P. Peppas
2023 J jnl
Wireless Energy Harvesting for Autonomous Reconfigurable Intelligent Surfaces.
IEEE Trans. Green Commun. Netw.
Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Emil Björnson, Wallace Alves Martins, Steven Kisseleff, Sergi Abadal, Eduard Alarcón, Anastasios K. Papazafeiropoulos, Fotis I. Lazarakis, Symeon Chatzinotas
2022 J jnl
Artificial Intelligence Empowered Multiple Access for Ultra Reliable and Low Latency THz Wireless Networks.
CoRR
Alexandros-Apostolos A. Boulogeorgos, Edwin Yaqub, Rachana Desai, Tachporn Sanguanpuak, Nikos Katzouris, Fotis I. Lazarakis, Angeliki Alexiou, Marco Di Renzo
2022 — conf
Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting.
VTC Spring
Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Emil Björnson, Dimitrios Selimis, Wallace Alves Martins, Sergi Abadal, Angeliki Alexiou, Fotis I. Lazarakis, Steven Kisseleff, Symeon Chatzinotas
2022 — conf
Link Budget Analysis for Line of Sight Communications in D-band: Radio Coverage vs. Antenna Gain.
MeditCom
Aris Tsolis, Vasileios Vlachodimitropoulos, Stefanos Lampiris, Fotis I. Lazarakis, Antonis A. Alexandridis
2022 J jnl
Outdoor and indoor path loss modeling at the sub-THz band.
CoRR
Dimitrios G. Selimis, Mar Francis D. De Guzman, Kostas P. Peppas, Fotis I. Lazarakis, Katsuyuki Haneda
2022 B conf
User - Access Point Distance Modelling in Cellular Networks with the Presence of Obstacles.
PIMRC
Kyriakos N. Manganaris, Dimitrios G. Selimis, Fotis I. Lazarakis, Kostas P. Peppas
2021 J jnl
Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting.
CoRR
Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Emil Björnson, Dimitrios Selimis, Wallace Alves Martins, Sergi Abadal, Angeliki Alexiou, Fotis I. Lazarakis, Steven Kisseleff, Symeon Chatzinotas
2021 J jnl
On the Performance Analysis of RIS-Empowered Communications Over Nakagami-m Fading.
IEEE Commun. Lett.
Dimitrios G. Selimis, Kostas P. Peppas, George C. Alexandropoulos, Fotis I. Lazarakis
2021 J jnl
Reconfigurable Intelligent Surface Optimal Placement in Millimeter-Wave Networks.
IEEE Open J. Commun. Soc.
Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Dimitrios Selimis, Fotis I. Lazarakis, Angeliki Alexiou, Symeon Chatzinotas
2021 J jnl
Toward Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting.
CoRR
Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Emil Björnson, Dimitrios Selimis, Wallace Alves Martins, Steven Kisseleff, Sergi Abadal, Eduard Alarcón, Anastasios K. Papazafeiropoulos, Fotis I. Lazarakis, Angeliki Alexiou, Symeon Chatzinotas
2020 J jnl
5G New Radio Evaluation Against IMT-2020 Key Performance Indicators.
IEEE Access
Manuel Fuentes, Jose Luis Carcel, Christiane Dietrich, Lang Yu, Eduardo Garro, Volker Pauli, Fotis I. Lazarakis, Ole Grøndalen, Ömer Bulakci, Jian Yu, Werner Mohr, David Gomez-Barquero
2020 — conf
On the Rate and Energy Efficiency Comparison of Reconfigurable Intelligent Surfaces with Relays.
SPAWC
Konstantinos Ntontin, Marco Di Renzo, Fotis I. Lazarakis
2020 J jnl
Reconfigurable Intelligent Surface Optimal Placement in Millimeter-Wave Networks.
CoRR
Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Dimitrios Selimis, Fotis I. Lazarakis, Angeliki Alexiou, Symeon Chatzinotas
2020 J jnl
Reconfigurable Intelligent Surfaces vs. Relaying: Differences, Similarities, and Performance Comparison.
IEEE Open J. Commun. Soc.
Marco Di Renzo, Konstantinos Ntontin, Jian Song, Fadil Habibi Danufane, Xuewen Qian, Fotis I. Lazarakis, Julien de Rosny, Dinh-Thuy Phan-Huy, Osvaldo Simeone, Rui Zhang, Mérouane Debbah, Geoffroy Lerosey, Mathias Fink, Sergei A. Tretyakov, Shlomo Shamai
2020 — conf
Time- vs. Frequency-Domain Channel Estimation in MIMO LOS Frequency-Selective Channels.
ISSPIT
Konstantinos Ntontin, Nikolaos Skentos, Fotis I. Lazarakis
2019 — conf
Definition and Evaluation of Latency in 5G: A Framework Approach.
5G World Forum
K. Xuan Du, Gino Carrozzo, Muhammad Shuaib Siddiqui, Óscar Carrasco, Bessem Sayadi, Fotis I. Lazarakis, Anastasios Kourtis, Janez Sterle, Roberto Bruschi
2019 J jnl
Reconfigurable Intelligent Surfaces vs. Relaying: Differences, Similarities, and Performance Comparison.
CoRR
Konstantinos Ntontin, Marco Di Renzo, Jian Song, Fotis I. Lazarakis, Julien de Rosny, Dinh Thuy Phan Huy, Osvaldo Simeone, Rui Zhang, Mérouane Debbah, Geoffroy Lerosey, Mathias Fink, Sergei A. Tretyakov, Shlomo Shamai
2015 J jnl
Approximated Box-Plus Decoding of LDPC Codes.
IEEE Commun. Lett.
Stylianos Papaharalabos, Fotis I. Lazarakis
2015 J jnl
Base station beamforming technique using multiple signal-to-interference plus noise ratio balancing criteria.
IET Signal Process.
Georgia Bournaka, Yogachandran Rahulamathavan, Kanapathippillai Cumanan, Sangarapillai Lambotharan, Fotis I. Lazarakis
2015 — conf
Comparative study of cooperative transmission techniques in multipath rician fading environments.
Panhellenic Conference on Informatics
Eleftherios Koxias, Stylianos Papaharalabos, Asimina Michalopoulou, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis, Panayotis G. Cottis
2015 J jnl
Multilevel Spatial Hierarchical Modulation: An Efficient Scheme for Unequal Error Protection Under Rician Fading.
IEEE Trans. Veh. Technol.
Martin O. Zamkotsian, Kostas P. Peppas, Fotis I. Lazarakis, Panayotis G. Cottis
2014 — conf
A quantitative method for graphical representation of H.264 video content dynamics.
TEMU
Michail-Alexandros Kourtis, Harilaos Koumaras, Charalabos Skianis, Fotis I. Lazarakis
2014 J jnl
Asymptotic Error Performance Analysis of Spatial Modulation Under Generalized Fading.
IEEE Wirel. Commun. Lett.
Kostas P. Peppas, Martin Zamkotsian, Fotis I. Lazarakis, Panayotis G. Cottis
2014 J jnl
Asymptotic Error Performance Analysis of Spatial Modulation under Generalized Fading.
CoRR
Kostas P. Peppas, Martin Zamkotsian, Fotis I. Lazarakis, Panayotis G. Cottis
2014 B conf
Improving spectral efficiency in broadcasting employing hierarchical QAM.
WCNC
Martin Zamkotsian, Kostas P. Peppas, Fotis I. Lazarakis, Panayotis G. Cottis
2013 J jnl
A Coordinated Multiuser Relaying Technique through Interference Precoding at the Base Station.
IEEE Commun. Lett.
G. Bournaka, Jie Tang, Sangarapillai Lambotharan, Fotis I. Lazarakis
2013 J jnl
Hierarchical Multilevel Space-Shift Keying for Unequal Error Protection under Rician Fading.
IEEE Commun. Lett.
Martin Zamkotsian, Kostas P. Peppas, Fotis I. Lazarakis, Panayotis G. Cottis
2013 J jnl
Layered Offset Hierarchical QAM Modulation for Intersymbol Interference Reduction.
IEEE Commun. Lett.
Martin Zamkotsian, Kostas Peppas, Fotis I. Lazarakis, Panayotis G. Cottis
2013 J jnl
Transmitter-receiver and relay optimisation for spectrum sharing multiple-input and multiple-output peer-to-peer users.
IET Signal Process.
Georgia Bournaka, Kanapathippillai Cumanan, Sangarapillai Lambotharan, Fotis I. Lazarakis
2013 J jnl
Unified Error Performance Analysis of Space Shift Keying Modulation for MISO and MIMO Systems Under Generalized Fading.
IEEE Wirel. Commun. Lett.
Kostas P. Peppas, Martin Zamkotsian, Fotis I. Lazarakis, Panayotis G. Cottis
2013 — conf
Wireless SPIHT-encoded image transmission employing hierarchical modulation: A DSP implementation.
ISSPIT
Martin Zamkotsian, Kostas P. Peppas, George Fovakis, Fotis I. Lazarakis, Antonis A. Alexandridis, Kostas Dangakis, Panayotis G. Cottis
2012 — conf
An SINR Balancing Technique for a Cognitive Two-Way Relay Network.
VTC Fall
G. Bournaka, K. Cumanan, Sangarapillai Lambotharan, Fotis I. Lazarakis
2012 J jnl
Moments-based analysis of dual-hop amplify-and-forward relaying communications systems over generalised fading channels.
IET Commun.
Kostas P. Peppas, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis
2011 B conf
An Iterative Semidefinite and Geometric Programming Technique for the SINR Balancing in Two-Way Relay Network.
GLOBECOM
G. Bournaka, K. Cumanan, Sangarapillai Lambotharan, Fotis I. Lazarakis
2011 J jnl
Higher Order Capacity Statistics of Diversity Receivers.
Wirel. Pers. Commun.
Nikos C. Sagias, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis, George S. Tombras
2011 J jnl
Impact of MIMO Techniques on the Interoperability between UMTS-HSDPA and WLAN Wireless Systems.
IEEE Commun. Surv. Tutorials
Kostas Peppas, Fotis I. Lazarakis, Charalambos Skianis, Antonis Alexandridis, Kostas Dangakis
2010 J jnl
Cascaded generalised-K fading channel.
IET Commun.
Kostas Peppas, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis
2010 J jnl
Sum of Non-Identical Independent Squared eta-µ Variates and Applications in the Performance Analysis of DS-CDMA Systems.
IEEE Trans. Wirel. Commun.
Kostas Peppas, Fotis I. Lazarakis, Theodore Zervos, Antonis Alexandridis, Kostas Dangakis
2009 J jnl
Error performance of digital modulation schemes with MRC diversity reception over eta-µ fading channels.
IEEE Trans. Wirel. Commun.
Kostas Peppas, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis
2009 J jnl
New results for the multivariate Nakagami-m fading model with arbitrary correlation matrix and applications.
IEEE Trans. Wirel. Commun.
George C. Alexandropoulos, Nikos C. Sagias, Fotis I. Lazarakis, Kostas Berberidis
2009 — conf
Novel Metamaterials for Patch Antennas Applications.
MOBILIGHT
Theodore Zervos, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis, Dimosthenis Stamopoulos, Michalis Pissas
2009 J jnl
System level performance evaluation of MIMO and SISO OFDM-based WLANs.
Wirel. Networks
Kostas Peppas, Fotis I. Lazarakis, Dimitrios I. Axiotis, Tareq Al-Gizawi, Antonis Alexandridis
2008 — conf
Error performance of triple-branch generalized selection diversity over Nakagami fading channels.
ISWPC
Kostas Peppas, Nikos C. Sagias, Fotis I. Lazarakis, Antonis A. Alexandridis, Kostas Dangakis
2008 J jnl
Outage Analysis of Decode-and-Forward Relaying Over Nakagami- Fading Channels.
IEEE Signal Process. Lett.
Nikos C. Sagias, Fotis I. Lazarakis, George S. Tombras, Christos Datsikas
2007 B conf
Dual-Hop Relaying Networks over Nakagami-M Fading Channels.
PIMRC
Christos Datsikas, George S. Tombras, Nikos C. Sagias, Fotis I. Lazarakis, George C. Alexandropoulos, Antonis A. Alexandridis, Kostas Dangakis
2007 B conf
Householder-Matrices based Analysis of SC Receivers over Rayleigh Fading Channels with Arbitrary Correlation.
PIMRC
George C. Alexandropoulos, Kostas Berberidis, Nikos C. Sagias, Fotis I. Lazarakis, Antonis A. Alexandridis, Kostas Dangakis
2007 B conf
New Results on SC and MRC Over Nakagami-m Fading Channels with Arbitrary Correlation Matrix.
GLOBECOM
George C. Alexandropoulos, Nikos C. Sagias, Fotis I. Lazarakis, Kostas Berberidis
2007 B conf
On the Sum of Squared Correlated Rayleigh Variates and Applications to Maximal-Ratio Diversity.
PIMRC
George C. Alexandropoulos, Kostas Berberidis, Nikos C. Sagias, Fotis I. Lazarakis, Christos Datsikas, Antonis A. Alexandridis, Kostas Dangakis
2007 B conf
The Impact of the Position of MIMO Terminal User's Hand on Channel Capacity.
PIMRC
Asimina Michalopoulou, Theodore Zervos, Kostas Peppas, Antonis Alexandridis, Fotis I. Lazarakis, Kostas Dangakis, Dimitra I. Kaklamani
2006 B conf
An Interoperability Mechanism for Seamless Interworking between WLAN and UMTS-HSDPA Networks.
GLOBECOM
Kostas Peppas, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis, Dimitrios I. Axiotis
2005 J jnl
Interoperability criteria, mechanisms, and evaluation of system performance for transparently interoperating WLAN and UMTS-HSDPA networks.
IEEE Netw.
Tareq Al-Gizawi, Kostas Peppas, Dimitrios I. Axiotis, Emmanuel N. Protonotarios, Fotis I. Lazarakis
2005 J jnl
Performance Evaluation at the System Level of Reconfigurable Space-Time Coding Techniques for HSDPA.
EURASIP J. Adv. Signal Process.
Kostas Peppas, Angeliki Alexiou, Fotis I. Lazarakis, Tareq Al-Gizawi, Dimitrios I. Axiotis
2004 J jnl
Evaluation of Interoperability Criteria and Mechanisms for Seamless Inter-Working Between UMTS-HSDPA and WLAN Networks Enhanced with MIMO Techniques.
Wirel. Pers. Commun.
Tareq Al-Gizawi, Kostas Peppas, Fotis I. Lazarakis, Rémy Pintenet, Jeremy Gosteau
2004 B conf
Interoperability Criteria and Mechanisms for Seamless Inter-working between UMTS-HSDPA and HIPERLAN/2 Networks Enhanced with MIMO Techniques.
NETWORKING
Tareq Al-Gizawi, Kostas Peppas, Fotis I. Lazarakis, Rémy Pintenet, Jeremy Gosteau
2004 J jnl
Services in interworking 3G and WLAN environments.
IEEE Wirel. Commun.
Dimitrios I. Axiotis, Tareq Al-Gizawi, Kostas Peppas, Emmanuel N. Protonotarios, Fotis I. Lazarakis, Constantinos B. Papadias, Panos I. Philippopoulos
2004 B conf
System level evaluation of reconfigurable MIMO techniques enhancements for HSDPA.
GLOBECOM
Kostas Peppas, Tareq Al-Gizawi, Fotis I. Lazarakis, Dimitrios I. Axiotis, A. Moussa, Angeliki Alexiou
2002 — conf
4G system level simulation parameters for evaluating the interoperability of MTMR in UMTS and HIPERLAN/2.
MWCN
Dimitrios I. Axiotis, Fotis I. Lazarakis, C. Vlahodimitropoulos, A. Chatzikonstantinou
2001 J jnl
A method of accurate determination of azimuthal distribution of received RF power.
Int. J. Commun. Syst.
Antonis A. Alexandridis, Kostas Dangakis, Panos Kostarakis, Fotis I. Lazarakis
2001 J jnl
Normalization of propagation measurements with respect to terrain effect.
Int. J. Commun. Syst.
Antonis A. Alexandridis, Fotis I. Lazarakis, Kostas Dangakis, Panos Kostarakis, Anastasios Kourtis
1994 B conf
A point-to-point mobile radio prediction model based on effective height estimation for the region of Athens.
PIMRC
Fotis I. Lazarakis, Kostas Dangakis, Antonis A. Alexandridis, George S. Tombras
1994 B conf
Field measurements and coverage prediction model evaluation based on a geographical information system.
PIMRC
Fotis I. Lazarakis, Kostas Dangakis, Antonis A. Alexandridis, George S. Tombras