LE-WiMARK: An intelligent power-efficient ad hoc MAC protocol with busy tone and power control. - George Kalfas; Georgios I. Papadimitriou; Petros Nicopolitidis; Andreas S. Pomportsis (ISWPC, 2008)

Performance Analysis of a Medium-Transparent MAC Protocol for 60GHz Radio-over-Fiber Networks. - George Kalfas; Nikos Pleros; Kostas Tsagkaris; Luis Alonso 001; Christos V. Verikoukis (GLOBECOM, 2011)

Very High Throughput 60GHz wireless enterprise networks over GPON infrastructure. - George Kalfas; Stella Markou; Dimitris Tsiokos; Christos V. Verikoukis; Nikos Pleros (ICC Workshops, 2013)

A WDM RoF system for heterogeneous 5 GHz/60 GHz wireless applications in MTMAC-enabled networks. - Charoula Mitsolidou; George Kalfas; Dimitris Tsiokos; Nikos Pleros; Amalia N. Miliou (CAMAD, 2014)

Heterogeneous 60 GHz / 5 GHz broadband optical wireless systems supporting dynamic bandwidth allocation. - Amalia N. Miliou; Dimitris Tsiokos; Charoula Mitsolidou; George Kalfas; Nikos Pleros (ICTON, 2014)

Client-Weighted Medium-Transparent MAC Protocol for User-Centric Fairness in 60 GHz Radio-Over-Fiber WLANs. - George Kalfas; Pavlos Maniotis; Stella Markou; Dimitris Tsiokos; Nikos Pleros; Luis Alonso 001; Christos V. Verikoukis (JOCN, 2014)

Delay Analysis of Converged Medium Transparent Fixed Service Optical-Wireless Networks. - George Kalfas; John S. Vardakas; Nikos Pleros; Luis Alonso 001; Christos V. Verikoukis (GLOBECOM, 2016)

Converged optical-wireless access networks enabling fixed and 60 GHz connectivity in WDM-PONs. - Dimitris Tsiokos; Charoula Mitsolidou; Christos Vagionas; George Kalfas; Amalia N. Miliou; Nikos Pleros (ICTON, 2016)

Network Planning for 80211ad and MT-MAC 60 GHz Fiber-Wireless Gigabit Wireless Local Area Networks Over Passive Optical Networks. - George Kalfas; Nikos Pleros; Luis Alonso 001; Christos V. Verikoukis (JOCN, 2016)

On converged Medium-Transparent MAC protocols for mm-wave fiber-wireless networks. - George Kalfas; Pavlos Maniotis; Maria Oikonomakou; Elli Kartsakli; John S. Vardakas; Nikos Pleros; Christos V. Verikoukis (CAMAD, 2017)

Medium Transparent MAC access schemes for seamless packetized fronthaul in mm-wave 5G picocellular networks. - George Kalfas; John S. Vardakas; Luis Alonso 001; Christos V. Verikoukis; Nikos Pleros (ICTON, 2017)

5G Small-Cell Networks Exploiting Optical Technologies with mmWave Massive MIMO and MT-MAC Protocols. - Sotirios Papaioannou 001; George Kalfas; Christos Vagionas; Charoula Mitsolidou; Pavlos Maniotis; Amalia N. Miliou; Nikos Pleros (IMCL, 2017)

Quality of Service Provisioning in High-Capacity 5G Fronthaul/Backhaul Networks. - John S. Vardakas; Elli Kartsakli; Sotirios Papaioannou 001; George Kalfas; Nikos Pleros; Angelos Antonopoulos 001; Christos V. Verikoukis (IMCL, 2017)

Medium-transparent MAC protocols for converged optical wireless networks. - Georgios Kalfas (2017)

DSP enabled Fiber-Wireless IFoF/mmWave link for 5G Analog Mobile Fronthaul. - Nikos Argyris 002; Konstantina Kanta; Nikos Iliadis; Giannis Giannoulis; Dimitrios Apostolopoulos; Hercules Avramopoulos; Sotirios Papaioannou 001; Christos Vagionas; George Kalfas; Nikos Pleros (5G World Forum, 2018)

5G mm Wave Networks Leveraging Enhanced Fiber-Wireless Convergence for High-Density Environments: The 5G-PHOS Approach. - Sotirios Papaioannou 001; George Kalfas; Christos Vagionas; Pavlos Maniotis; Amalia N. Miliou; Nikos Pleros; L. Anet Neto; Paraskevas Chanclor; M. Raj-Ali; Paraskevas Bakopoulos; Christophe Caillaud; Helene Debregeas; et al. (BMSB, 2018)

Medium-transparent Dynamic Bandwidth Allocation for 5G Fiber Wireless Dense Fronthaul Networks. - Agapi Mesodiakaki; Pavlos Maniotis; Christos Vagionas; Marios Gatzianas; Eftychia G. Datsika; Elli Kartsakli; John S. Vardakas; George Kalfas (CAMAD, 2018)

Fiber-Wireless Fronthaul/Backhaul Network Architectures for 5G. - Ioanna Mesogiti; Eleni Theodoropoulou; Konstantinos Filis; George L. Lyberopoulos; Athina Ropodi; Kostas Tsagkaris; Panagiotis Demestichas; Nikos Pleros; George Kalfas; Christos Vagionas (CAMAD, 2018)

A 6-Band 12Gb/s IFoF/V-Band Fiber-Wireless Fronthaul Link Using an InP Externally Modulated Laser. - C. Vaotonas; Sotirios Papaioannou 001; Nikolaos Argyris 002; Konstantina Kanta; Nikos Iliadis; Giannis Giannoulis; Dimitrios Apostolopoulos; Hercules Avramopoulos; Christophe Caillaud; Helene Debregeas; George Kalfas; Nikos Pleros (ECOC, 2018)

QoS-Aware Resource Management for Converged Fiber Wireless 5G Fronthaul Networks. - Eftychia G. Datsika; Elli Kartsakli; John S. Vardakas; Angelos Antonopoulos 001; George Kalfas; Pavlos Maniotis; Christos Vagionas; Nikos Pleros; Christos V. Verikoukis (GLOBECOM, 2018)

Medium-Transparent Packet-Based Fronthauling for 5G Hot-Spot Networks. - Georgios Kalfas; Pavlos Maniotis; Agapi Mesodiakaki; Sotirios Papaioannou 001; Christos Vagionas; Marios Gatzianas; Elli Kartsakli; John S. Vardakas (ICTON, 2018)

Downlink Coordinated Beamforming Policies for 5G Millimeter Wave Dense Networks. - Marios Gatzianas; George Kalfas; Christos Vagionas; Agapi Mesodiakaki (EuCNC, 2019)

A 5G C-RAN Architecture for Hot-Spots: OFDM based Analog IFoF PHY and MAC Layer Design. - Charoula Mitsolidou; Christos Vagionas; Agapi Mesodiakaki; Pavlos Maniotis; George Kalfas; Amalia N. Miliou; Nikos Pleros; Chris G. H. Roeloffzen; Paulus W. L. van Dijk; R. M. Oldenbeuving (EuCNC, 2019)

Analog Radio-over-Fiber 5G Fronthaul Systems: blueSPACE and 5G-PHOS Projects Convergence. - Thiago R. Raddo; Simon Rommel; Idelfonso Tafur Monroy; Christos Vagionas; George Kalfas; Nikos Pleros (EuCNC, 2019)

Converged Analog Fiber-Wireless Point-to-Multipoint Architecture for eCPRI 5G Fronthaul Networks. - George Kalfas; Nikos Pleros; Mauro Agus; Annachiara Pagano; L. Anet Neto; Agapi Mesodiakaki; Christos Vagionas; John S. Vardakas; Eftychia G. Datsika; Christos V. Verikoukis (GLOBECOM, 2019)

Delay Analysis of a Gated Service MAC Protocol for Fiber-Wireless 5G MmWave C-RANs. - Agapi Mesodiakaki; Pavlos Maniotis; Christos Vagionas; John S. Vardakas; Elli Kartsakli; Angelos Antonopoulos 001; Christos V. Verikoukis; Nikos Pleros; George Kalfas (ICC, 2019)

A Fiber Wireless A-RoF/IFoF Uplink Transmission of up to 0.6 Gb/s User Data Rate Over a 32-Element 60 GHz Beam-Steering Antenna for 5G Fronthaul Networks. - Eugenio Ruggeri; Apostolos Tsakyridis; Christos Vagionas; George Kalfas; Amalia N. Miliou; Nikos Pleros; Yigal Leiba (IMCL, 2019)

A Gated Service MAC Protocol for 5G Fiber-Wireless Cloud-Radio Access Networks. - Agapi Mesodiakaki; Pavlos Maniotis; Georgios Kalfas; Christos Vagionas; John S. Vardakas; Elli Kartsakli; Angelos Antonopoulos 001; Eftychia G. Datsika; Christos V. Verikoukis; Nikos Pleros (ONDM, 2019)

Analog IFoF/mmWave 5G Optical Fronthaul Architecture for Hot-Spots Using Multi-channel OFDM-Based WDM Signals. - Charoula Mitsolidou; Christos Vagionas; Agapi Mesodiakaki; Pavlos Maniotis; George Kalfas; Chris G. H. Roeloffzen; Paulus W. L. van Dijk; Ruud M. Oldenbeuving; Amalia N. Miliou; Nikos Pleros (ONDM, 2019)

Next Generation Fiber-Wireless Fronthaul for 5G mmWave Networks. - George Kalfas; Christos Vagionas; Angelos Antonopoulos 001; Elli Kartsakli; Agapi Mesodiakaki; Sotirios Papaioannou 001; Pavlos Maniotis; John S. Vardakas; Christos V. Verikoukis; Nikos Pleros (IEEE Commun. Mag., 2019)

A Flexible and Reconfigurable Si3N4 ROADM-enabled 5G mmWave IFoF Fiber Wireless Fronthaul with 60 GHz beamsteering capabilities. - Apostolos Tsakyridis; Eugenio Ruggeri; George Kalfas; R. M. Oldenbeuving; P. W. L. van Dijk; Chris Roeloffzen; Yigal Leiba; Amalia N. Miliou; Nikos Pleros; Christos Vagionas (ECOC, 2020)

End-to-End Delay Performance of Analog Fiber Wireless Architecture for 5G NR Fronthaul. - Eftychia G. Datsika; John S. Vardakas; Georgios Kalfas; Christos Vagionas; Agapi Mesodiakaki; Christos V. Verikoukis (ICTON, 2020)

A Framework to Support the 5G Densification. - Eleni Theodoropoulou; Ioanna Mesogiti; George L. Lyberopoulos; George Kalfas; Christos Vagionas; Nikos Pleros; Annachiara Pagano; Mauro Agus; Luiz Anet Neto; Nikos Psaromanolakis; Athina Ropodi (AIAI (Workshops), 2020)

Flexible 360° 5G mmWave small Cell Coverage through WDM 4×1 Gb/s Fiber Wireless Fronthaul and a Si3N4 OADM-Assisted Massive MIMO Phased Array Antenna. - Eugenio Ruggeri; Apostolos Tsakyridis; Christos Vagionas; George Kalfas; Ruud M. Oldenbeuving; Paulus W. L. van Dijk; Chris G. H. Roeloffzen; Yigal Leiba; Nikos Pleros; Amalia N. Miliou (OFC, 2020)

Linearity Measurements on a 5G mmWave Fiber Wireless IFoF Fronthaul Link With Analog RF Beamforming and 120° Degrees Steering. - Christos Vagionas; Eugenio Ruggeri; Apostolos Tsakyridis; George Kalfas; Yigal Leiba; Amalia N. Miliou; Nikos Pleros (IEEE Commun. Lett., 2020)

Analog fiber-wireless downlink transmission of IFoF/mmWave over in-field deployed legacy PON infrastructure for 5G fronthauling. - Konstantina Kanta; Annachiara Pagano; Eugenio Ruggeri; Mauro Agus; Ioannis Stratakos; Roberto Mercinelli; Christos Vagionas; Panagiotis Toumasis; George Kalfas; Giannis Giannoulis; Amalia N. Miliou; George Lentaris; et al. (JOCN, 2020)

5G-COMPLETE: End-to-end Resource Allocation in Highly Heterogeneous Beyond 5G Networks. - Agapi Mesodiakaki; Marios Gatzianas; George Kalfas; Francesca Moscatelli; Giada Landi; Nicola Ciulli; Leonardo Lossi (5GWF, 2021)

5G-COMPLETE: Service-Driven Slice Management over Heterogeneous 5G Infrastructures. - Francesca Moscatelli; Giada Landi; Agapi Mesodiakaki; Marios Gatzianas; George Kalfas; Anna Tzanakaki; Markos P. Anastasopoulos; Giannis Giannoulis; Konstantinos Tokas; Dimitris Apostolopoulos; Hercules Avramopoulos; Dimitra Simeonidou; et al. (CAMAD, 2021)

A Centralized and Reconfigurable 4x2.5Gb/s Fiber-Wireless mmWave ronthaul for Network Sharing Applications. - Ronis T. Maximidis; Christos Vagionas; Eugenio Ruggeri; George Kalfas; Yigal Leiba; Amalia N. Miliou; Nikos Pleros (ECOC, 2021)

Energy-efficient Joint Computational and Network Resource Planning in Beyond 5G Networks. - Marios Gatzianas; Agapi Mesodiakaki; Georgios Kalfas; Nikolaos Pleros (GLOBECOM, 2021)

Top Challenges in 5G Densification. - Eleni Theodoropoulou; Ioanna Mesogiti; Fotini Setaki; Konstantinos Filis; George L. Lyberopoulos; Agapi Mesodiakaki; Marios Gatzianas; Christos Vagionas; George Kalfas; Mauro Agus; Annachiara Pagano (AIAI (Workshops), 2021)

4×10 Gb/s WDM Fiber Wireless multi-IFoF Reconfigurable Fronthaul using a low-loss Si3N4 ROADM for mmWave 5G. - Eugenio Ruggeri; Dimosthenis Spasopoulos; Christos Vagionas; George Kalfas; Ruud M. Oldenbeuving; Paul W. L. van Dijk; Chris G. H. Roeloffzen; Nikos Pleros; Amalia N. Miliou (OFC, 2021)

Transition technologies towards 6G networks. - Thiago R. Raddo; Simon Rommel; Bruno Cimoli; Chris Vagionas; Diego Pérez-Galacho; Evangelos Pikasis; Evangelos Grivas; Konstantinos Ntontin; Michail Katsikis; Dimitrios Kritharidis; Eugenio Ruggeri; Izabela Spaleniak; et al. (EURASIP J. Wirel. Commun. Netw., 2021)

Reconfigurable Fiber Wireless IFoF Fronthaul With 60 GHz Phased Array Antenna and Silicon Photonic ROADM for 5G mmWave C-RANs. - Apostolos Tsakyridis; Eugenio Ruggeri; George Kalfas; Ruud M. Oldenbeuving; Paul W. L. van Dijk; Chris G. H. Roeloffzen; Yigal Leiba; Amalia N. Miliou; Nikos Pleros; Christos Vagionas (IEEE J. Sel. Areas Commun., 2021)

A Gated Service MAC Protocol for Sub-Ms Latency 5G Fiber-Wireless mmWave C-RANs. - Agapi Mesodiakaki; Pavlos Maniotis; Marios Gatzianas; Christos Vagionas; Nikos Pleros; George Kalfas (IEEE Trans. Wirel. Commun., 2021)

Wavelength Reconfigurable Point-to-Multipoint Fiber-Wireless Fronthaul with 10 Gb/s traffic for Network Sharing Applications. - Christos Vagionas; Ronis T. Maximidis; George Kalfas; Marios Gatzianas; Agapi Mesodiakaki; Amalia N. Miliou; Nikos Pleros (CSNDSP, 2022)

ONE: Online Energy-efficient User Association, VNF Placement and Traffic Routing in 6G HetNets. - Agapi Mesodiakaki; Marios Gatzianas; George Kalfas; Christos Vagionas; Ronis T. Maximidis; Nikolaos Pleros (GLOBECOM (Workshops), 2022)

End-to-End Real-Time Service Provisioning over a SDN-controllable 60 GHz analog FiWi X-haul for 5G Hot-Spot Networks. - Christos Vagionas; Ronis T. Maximidis; Ioannis Stratakos; Aristotelis Margaris; Agapi Mesodiakaki; Marios Gatzianas; Konstantina Kanta; Panagiotis Toumasis; Giannis Giannoulis; Dimitrios Apostolopoulos; Elissaios-Alexios Papatheofanous; George Lentaris; et al. (OFC, 2022)

Live demonstration of an SDN-reconfigurable, FPGA-based TxRx for an analog-IFoF/mmWave radio access network in an MNO's infrastructure. - Konstantina Kanta; Panagiotis Toumasis; Giannis Giannoulis; Ioannis Stratakos; George Lentaris; Elissaios-Alexios Papatheofanous; Ioanna Mesogiti; Eleni Theodoropoulou; Aristotelis Margaris; Dimitris Syrivelis; Evrydiki Kyriazi; Giorgos Brestas; et al. (JOCN, 2022)

Traffic-Aware Coordinated Beamforming for mmWave Backhauling of 5G Dense Networks. - Marios Gatzianas; George Kalfas; Agapi Mesodiakaki; Christos Vagionas; Nikos Pleros (IEEE Trans. Wirel. Commun., 2022)

An Optimized Medium-Transparent MAC Protocol for Multi-Service FiWi 5G Transport Networks. - George Kalfas; Marios Gatzianas; Dimitrios Palianopoulos; Agapi Mesodiakaki; Christos Vagionas; Ronis T. Maximidis; Amalia N. Miliou; Nikos Pleros (GLOBECOM, 2023)

An Enhanced Medium-Transparent MAC Protocol for Multi-Service FiWi 5G Transport Networks. - George Kalfas; Dimitrios Palianopoulos; Marios Gatzianas; Agapi Mesodiakaki; Christos Vagionas; Ronis T. Maximidis; Amalia N. Miliou; Nikos Pleros (ICC, 2023)

Multi-RAT Fiber-Wireless Technologies towards 6G Networks. - Chris Vagionas; Ronis T. Maximidis; Konstantina Kanta; Panagiotis Toumasis; Giannis Giannoulis; Dimitris Apostolopoulos; George Kalfas; Marios Gatzianas; Agapi Mesodiakaki; Hercules Avramopoulos; Amalia N. Miliou; Nikos Pleros (ICTON, 2023)

Techno-economic Analysis of Sustainable Terrestrial, Aerial and Space 6G Networks. - C. Bratsoudis; Agapi Mesodiakaki; P. Konstantinou; Marios Gatzianas; Georgios Kalfas; Nikolaos Pleros; Amalia N. Miliou (GLOBECOM (Workshops), 2024)

A Just-in-Time Medium-Transparent MAC Protocol for Multi-Service 5G X-haul Transport Networks. - Marios Gatzianas; Georgios Kalfas; Dimitrios Palianopoulos; Agapi Mesodiakaki; Christos Vagionas; Ronis T. Maximidis; Amalia N. Miliou; Nikolaos Pleros (GLOBECOM (Workshops), 2024)

Building the Enhanced Control Plane of Next Generation Central Offices. - Pietro Piscione; Ahmed K. Abdulwahed; Pietro G. Giardina; Giada Landi; George Kalfas; Chris Vagionas; Marios Gatzianas; Voica Gavrilut; Christopher Alsted; Eleni Theodoropoulou; George L. Lyberopoulos; Fabienne Saliou (HPSR, 2024)

Online Energy-Efficient Resource Allocation in Integrated Terrestrial and Satellite 6G Networks. - Agapi Mesodiakaki; Marios Gatzianas; C. Bratsoudis; Georgios Kalfas; Christos Vagionas; Ronis T. Maximidis; A. Antonopoulos; Nikos Pleros; Amalia N. Miliou (ICC, 2024)

OCTAPUS: Empowering Next Generation Central Offices with Cross-Layer Network Intelligence Towards a Reconfigurable Data Plane. - Marios Gatzianas; Georgios Kalfas; Christos Vagionas; M. Vargemidou; Athanasios Papadakis; Fabienne Saliou; Eleni Theodoropoulou; George L. Lyberopoulos; Pietro Piscione; Ahmed K. Abdulwahed; Pietro G. Giardina; Voica Gavrilut; et al. (AIAI (Workshops), 2024)

SMART: A Holistic Simulation Framework for End-to-End V2X Communication. - Athanasios Papadakis; Dimitrios Palianopoulos; George Kalfas; Marios Gatzianas; Sophia G. Petridou (WMNC, 2024)

Coexistence in future optical access networks from an operator's perspective [Invited]. - Fabienne Saliou; Gaël Simon; Stéphane Le Huérou; Philippe Chanclou; Jérémy Potet; Georges Gaillard; Ugo Percevault; Dylan Chevalier; Joseph Zandueta; Bo Yang; Christos Vagionas; Marios Gatzianas; et al. (J. Opt. Commun. Netw., 2024)

Integrating nApps in 5G for Verticals: Architecture Innovation and Technology Enablers. - Xi Li; Agapi Mesodiakaki; Marios Gatzianas; George Kalfas; Anastasios-Stavros Charismiadis; Dimitris Tsolkas; Lanfranco Zanzi; Apostolis K. Salkintzis; Dan Warren; Andreas Gavrielides; Marios Sophocleous; Marco Gramaglia; et al. (IEEE Commun. Mag., 2025)