K. Kanta, P. Toumasis, G. Giannoulis, I. Stratakos, G. Letaris, E.A. Papatheofaous, I. Mesogiti, E. Theodoropoulou, A. Margaris, D. Syrivelis, E. Kyriazi, G. Brestas, K. Tokas, N. Argyris, C. Vagionas, R. Maximidis, P. Bakopoulos, A. Mesodiakaki, M. Gatzianas, G. Kalfas, et al., “Live Demonstration of an SDN-reconfigurable, FPGA-based TxRx for Analog-IFoF/mmWave RAN, in MNO’s infrastructure,” Journal of Optical Communications and Networking, vol. 15, no. 8, pp. 299-306, Jul. 2023 (Q1, IF:4.508).
R. Maximidis, C. Vagionas, G. Kalfas, Y. Leiba, A. Miliou and N. Pleros, “A 51 Gb/s Reconfigurable mmWave Fiber-Wireless C-RAN Supporting 5G/6G MNO Network Sharing,” in Journal of Lightwave Technology, vol. 41, no. 14, pp. 4705-4712, 15 July15, 2023, doi: 10.1109/JLT.2023.3246597.
C. Vagionas, R. Maximidis, I. Stratakos, A. Margaris, A. Mesodiakaki, M. Gatzianas, K. Kanta, P. Toumasis, G. Giannoulis, D. Apostolopoulos, E.A. Papatheofanous, G. Lentaris, D. Reisis, D. Soudris, K. Tsagkaris, N. Argyris, D. Syrivelis, P. Bakopoulos, R.M. Oldenbeuving, C.G.H. Roeloffzen, P.W.L. van Dijk, I. Dimogiannis, A. Kontogiannis, H. Avramopoulos, A. Miliou, N. Pleros and G. Kalfas, “End-to-End real-time service provisioning over a SDN-controllable analog mmWave fiber-wireless 5G X-Haul network”, IEEE Journal of Lightwave Technology, vol. 41, no. 4, Feb. 2023. (http://dx.doi.org/10.1109/JLT.2023.3234365)
G. Kalfas, D. Palianopoulos, A. Mesodiakaki, M. Gatzianas, C. Vagionas, R. Maximidis, N. Pleros, “A QoS-enabled Medium-Transparent MAC protocol for fiber-wireless 5G RAN transport networks”, Applied Sciences 12 (17), Aug. 2022. (http://dx.doi.org/10.3390/app12178708)
M. Gatzianas, G. Kalfas, A. Mesodiakaki, C. Vagionas and N. Pleros, “Traffic-Aware Coordinated Beamforming for mmWave Backhauling of 5G Dense Networks,” in IEEE Transactions on Wireless Communications, vol. 21, no. 7, pp. 5019-5034, July 2022, doi: 10.1109/TWC.2021.3135710.
E. Ruggeri, C. Vagionas, R. Maximidis, G. Kalfas, D. Spasopoulos, N. Terzenidis, R. M. Oldenbeuving, P. W. L. van Dijk, C. G.H. Roeloffzen, N. Pleros, A. Miliou, “Reconfigurable Fiber Wireless fronthaul with A-RoF and D-RoF co-existence through a Si3N4 ROADM for Heterogeneous mmWave 5G C-RANs,” in Journal of Lightwave Technology, doi: 10.1109/JLT.2022.3179636
M. Gatzianas, A. Mesodiakaki, G. Kalfas, N. Pleros, F. Moscatelli, G. Landi, N. Ciulli, L. Lossi, “Offline Joint Network and Computational Resource Allocation for Energy-Efficient 5G and beyond Networks”, Appl. Sci. 2021, 11, 10547. https://doi.org/10.3390/app112210547
M. Gatzianas, G. Kalfas, A. Mesodiakaki, C. Vagionas and N. Pleros, “Traffic-Aware Coordinated Beamforming for mmWave Backhauling of 5G Dense Networks,” in IEEE Transactions on Wireless Communications, doi: 10.1109/TWC.2021.3135710.
Th. R. Raddo, S. Rommel, B. Cimoli, C. Vagionas, D. Perez-Galacho, E. Pikasis, E. Grivas, K. Ntontin, M. Katsikis, D. Kritharidis, E. Ruggeri, I. Spaleniak, M. Dubov, D. Klonidis, G. Kalfas, S. Sales, N. Pleros, I. Tafur Monroy, “Transition technologies towards 6G networks”, J Wireless Com Network 2021, 100 (2021). https://doi.org/10.1186/s13638-021-01973-9
A. Tsakyridis, E. Ruggeri, G. Kalfas, R. Oldenbeuving, P. v. Dijk, C. Roeloffzen, Y. Leiba, A. Miliou, N. Pleros, C. Vagionas, “Reconfigurable Fiber Wireless IFoF Fronthaul with 60 GHz Phased Array Antenna and Silicon Photonic ROADM for 5G mmWave C-RANs,” in IEEE Journal on Selected Areas in Communications, doi: 10.1109/JSAC.2021.3064649.
A. Mesodiakaki, P. Maniotis, M. Gatzianas, C. Vagionas, N. Pleros and G. Kalfas, “A Gated Service MAC Protocol for Sub-Ms Latency 5G Fiber-Wireless mmWave C-RANs,” in IEEE Transactions on Wireless Communications, vol. 20, no. 4, pp. 2502-2515, April 2021, doi: 10.1109/TWC.2020.3042762.
E. Ruggeri, A. Tsakyridis, C. Vagionas, G. Kalfas, R. M. Oldenbeuving, P. W. L. van Dijk, C. G.H. Roeloffzen, Y. Leiba, N. Pleros, A. Miliou, “A 5G Fiber Wireless 4Gb/s WDM Fronthaul for Flexible 360° Coverage in V-Band massive MIMO Small Cells,” in Journal of Lightwave Technology, vol. 39, no. 4, pp. 1081-1088, 15 Feb.15, 2021, doi: 10.1109/JLT.2020.3029608.
C. Vagionas, E. Ruggeri, A. Tsakyridis, G. Kalfas, Y. Leiba, A. Miliou, N. Pleros, “Linearity Measurements on a 5G mmWave Fiber Wireless IFoF Fronthaul Link With Analog RF Beamforming and 120° Degrees Steering,” in IEEE Communications Letters, vol. 24, no. 12, pp. 2839-2843, Dec. 2020, doi: 10.1109/LCOMM.2020.3019733.
K. Kanta, A. Pagano, E. Ruggeri, M. Agus, I. Stratakos, R. Mercinelli, C. Vagionas, P. Toumasis, G. Kalfas, G. Giannoulis, A. Miliou, G. Lentaris, D. Apostolopoulos, N. Pleros, D. Soudris, H. Avramopoulos, “Analog fiber-wireless downlink transmission of IFoF/mmWave over in-field deployed legacy PON infrastructure for 5G fronthauling,” in IEEE/OSA Journal of Optical Communications and Networking, vol. 12, no. 10, pp. D57-D65, October 2020, doi: 10.1364/JOCN.391803
E. Ruggeri, A. Tsakyridis, C. Vagionas, Y. Leiba, G. Kalfas, N. Pleros, A. Miliou., “Multi-user V-band uplink using a massive MIMO antenna and a fiber-wireless IFoF fronthaul for 5G mmWave small-cells,” in Journal of Lightwave Technology, 02 April 2020.
Ch. Mitsolidou, Ch. Vagionas, A. Mesodiakaki, P. Maniotis, G. Kalfas, Ch. Roeloffzen, P. van Dijk, R. Oldenbeuvin, A. Miliou and N. Pleros, “A 5G mmWave C-RAN optical fronthaul architecture for hot-spot areas using OFDM-based analog IFoF waveforms”, Appl. Sci. 2019, 9(19), 4059.
A. Tsakyridis, M. Moralis-Pegios, Ch. Vagionas, E. Ruggeri, G. Kalfas, A. Miliou and N. Pleros, “A Deeply Saturated Differentially-Biased SOA-MZI for 20 Gb/s Burst-Mode NRZ Traffic”, Appl. Sci. 2019, 9(15), 2971.
N. Argyris, G. Giannoulis, K. Kanta, N. Iliadis, C. Vagionas, S. Papaioannou, G. Kalfas, D. Apostolopoulos, C. Caillaud, H. Debrégeas, N. Pleros and H. Avramopoulos, “A 5G mmWave Fiber-Wireless IFoF Analog Mobile Fronthaul link with up to 24Gb/s Multi-band Wireless Capacity”, IEEE J. Lightwave Communication, vol. 37, no. 12, pp. 2883-2891, June 2019.
G. Kalfas, C. Vagionas, A. Antonopoulos, E. Kartsakli, A. Mesodiakaki, S. Papaioannou, P. Maniotis, J. Vardakas, Ch. Verikoukis, and N. Pleros, “Next Generation Fiber-Wireless Fronthaul for 5G mmWave Networks”, in IEEE Communications Magazine, vol. 57, no. 3, pp. 138-144, March 2019.
G. Kalfas, J. Vardakas, L. Alonso, C. Verikoukis and N. Pleros, “Non-saturation delay analysis of Medium Transparent MAC protocol for 60GHz Fiber-Wireless networks”, in IEEE Journal of Lightwave Technology, vol. 35, no. 18, pp. 3945-3955, Sept.15, 15 2017.
C. Vagionas, C. Mitsolidou, D. Tsiokos, G. Kalfas, K. Ramantas, A. Miliou, N. Pleros, “Optical Physical-Layer Digital Network Coding for 2.5-Gb/s RoF-Based FiWi Networks,” in IEEE Photonics Technology Letters, vol. 28, no. 13, pp. 1442-1445, July1, 1 2016.
G. Kalfas, N. Pleros, L. Alonso and C. Verikoukis, “Network planning for 802.11ad and MT-MAC 60 GHz fiber-wireless gigabit wireless local area networks over passive optical networks”, in IEEE/OSA Journal of Optical Communications and Networking, vol. 8, no. 4, pp. 206-220, April 2016.
G. Kalfas, P. Maniotis, S. Markou, D. Tsiokos, N. Pleros, L. Alonso, and C. Verikoukis, “Client-Weighted Medium-Transparent MAC Protocol for User-Centric Fairness in 60 GHz Radio-Over-Fiber WLANs”, IEEE/OSA Journal of Optical Communications and Networking, vol.6, no.1, pp.33,44, Jan. 2014.
G. Kalfas, N. Pleros, K. Tsagkaris, L. Alonso, C. Verikoukis, “Saturation Throughput Performance Analysis of a Medium-Transparent MAC protocol for 60GHz Radio-over-Fiber Networks”, IEEE Journal of Lightwave Technology, vol.29, no.24, pp.3777 – 3785, December 2011.
G. Kalfas, N. Pleros, “An Agile and Medium-Transparent MAC Protocol for 60 GHz Radio-Over-Fiber Local Access Networks”, IEEE Journal of Lightwave Technology, vol.28, no.16, pp.2315-2326, Aug.15, 2010.
Publications – Conferences
M. Vargemidou, C. Vagionas, A. Kokkinis, G. Michail, M. Gatzianas, G. Kalfas, et. al., “Real-Time SDN Controlled hybrid Fiber Wireless FSO/mmWave X-haul with Zero-Touch Handοver for Terrestrial 6G networks”, European Conference on Optical Communications (ECOC 2024), Frankfurt, Germany, accepted, to be presented.-
P. Piscione, A. Abdulwahed, P. Giardina, G. Landi, G. Kalfas, et. al., “Building the Enhanced Control Plane of Next Generation Central Offices”, 2024 IEEE 25th International Conference on High Performance Switching and Routing (HPSR) – Workshop on Control and Management of Future Optical Networks, accepted, to be presented.-
A. Mesodiakaki, M. Gkatzianas, C. Bratsoudis, G. Kalfas, et al., “Online Energy-efficient Resource Allocation in Integrated Terrestrial and Satellite 6G Networks,” in Proc. IEEE ICC 2024, accepted, Jun. 2024.-
G. Michail, M. Vargemidou, Ch. Vagionas, M. Gatzianas, G. Kalfas, et al., “Flexible Optical Circuit Switched Network Architecture based on Tunable SFP+ Transceivers for Reconfigurable Low-Latency 5G/6G Networks,” 2024 Panhellenic Conference on Electronics & Telecommunications (PACET), Thessaloniki, Greece, 2024, pp. 1-5, doi: 10.1109/PACET60398.2024.10497001.
G. Kalfas et al., “An Optimized Medium-Transparent MAC Protocol for Multi-Service FiWi 5G Transport Networks,” GLOBECOM 2023 – 2023 IEEE Global Communications Conference, Kuala Lumpur, Malaysia, 2023, pp. 4146-4151, doi: 10.1109/ GLOBECOM 54140.2023.10436729
G. Kalfas, D. Palianopoulos, M. Gatzianas, Agapi Mesodiakaki, Ch. Vagionas, Ronis T. Maximidis, Amalia N. Miliou and Nikos Pleros, “An enhanced Medium-Transparent MAC protocol for multi-service FiWi 5G transport networks”, ICC 2023 – IEEE International Conference on Communications, Rome, Italy, 2023, pp. 4224-4229, doi: 10.1109/ICC45041.2023.10278788.
Ch. Vagionas, R. Maximidis, K. Kanta, P. Toumasis, G. Giannoulis, D. Apostolopoulos, G. Kalfas, et al., “Multi-RAT Fiber-Wireless Technologies towards 6G Networks,” 2023 23rd International Conference on Transparent Optical Networks (ICTON), Bucharest, Romania, 2023, pp. 1-4, doi: 10.1109/ICTON59386.2023.10207366.
R. Maximidis, C. Vagionas, S. Soukaras, Z. He, K. Kanta, P. Toumasis, G. Giannoulis, D. Apostolopoulos, G. Kalfas, A. Mesοdiakaki, M. Gatzianas et al., “Demonstration of low-complexity D-band extension of fiber X-haul for 5G and Beyond infrastructure”, in Proc. 17th European Conference on Antennas and Propagation (EuCAP), May 2023 (https://doi.org/10.23919/EuCAP57121.2023.10133343)
A. Mesodiakaki, M. Gatzianas, G. Kalfas, C. Vagionas, R. Maximidis and N. Pleros, “ONE: Online Energy-efficient User Association, VNF Placement and Traffic Routing in 6G HetNets,” 2022 IEEE Globecom Workshops (GC Wkshps), Rio de Janeiro, Brazil, 2022, pp. 304-309, doi: 10.1109/GCWkshps56602.2022.10008742.
C. Vagionas, R. Maximidis, G. Kalfas, M. Gatzianas, A. Mesodiakaki, A. Miliou, and N. Pleros, “Wavelength Reconfigurable Point-to-Multipoint Fiber-Wireless Fronthaul with 10 Gb/s traffic for Network Sharing Applications”, in Proc. 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), Jul. 2022.
K. Kanta, P. Toumasis, G. Giannoulis, I. Stratakos, G. Lentaris, E. A. Papatheofanous, I. Mesogiti, E. Theodoropoulou, A. Margaris, D. Syrivelis, E. Kyriazi, G. Brestas, K. Tokas, N. Argyris, C. Vagionas, R. Maximidis, P. Bakopoulos, A. Mesodiakaki, M. Gatzianas, G. Kalfas, K. Tsagkaris, N. Pleros, D. Reisis, G. Lyberopoulos, D. Apostolopoulos, D. Soudris, and H. Avramopoulos, “End-to-End demonstration of an SDN-reconfigurable, FPGA-based TxRx Interface for analog-IFoF/mmWave X-haul”, in Proc. IEEE European Conference on Optical Communication (ECOC), Sep. 2022 (ISBN: 978-1-957171-15-9)
C. Vagionas, R. Maximidis, I. Stratakos, A. Margaris, A. Mesodiakaki, M. Gatzianas, K. Kanta, P. Toumasis, G. Giannoulis, D. Apostolopoulos, E. A. Papatheofanous, G. Lentaris, D. Reisis, D. Soudris, K. Tsagkaris, N. Argyris, D. Syrivelis, P. Bakopoulos, R. M. Oldenbeuving, C. G. H. Roeloffzen, P. W. L. van Dijk, I. Dimogiannis, A. Kontogiannis, H. Avramopoulos, A. Miliou, N. Pleros, and G. Kalfas, “End-to-End Real-Time Service Provisioning over a SDN-controllable 60 GHz analog FiWi X-haul for 5G Hot-Spot Networks,” in Optical Fiber Communication Conference (OFC) 2022, S. Matsuo, D. Plant, J. Shan Wey, C. Fludger, R. Ryf, and D. Simeonidou, eds., Technical Digest Series (Optica Publishing Group, 2022), paper Th4A.7.
M. Gatzianas, A. Mesodiakaki, G. Kalfas and N. Pleros, “Energy-efficient Joint Computational and Network Resource Planning in Beyond 5G Networks,” 2021 IEEE Global Communications Conference (GLOBECOM), 2021, pp. 1-6, doi: 10.1109/GLOBECOM46510.2021.9685055.
R. Maximidis, C. Vagionas, E. Ruggeri, G. Kalfas, Y. Leiba, A. Miliou, N. Pleros, “A Centralized and Reconfigurable 4×2.5Gb/s Fiber-Wireless mmWave Fronthaul for Network Sharing Applications,” 2021 European Conference on Optical Communication (ECOC), 2021, pp. 1-4.
A. Mesodiakaki, M. Gatzianas, G. Kalfas et al., “5G-COMPLETE: End-to-end Resource Allocation in Highly Heterogeneous Beyond 5G Networks,” in 2021 IEEE 4th 5G World Forum (5GWF), Montreal, QC, Canada, 2021 pp. 412-417, doi: 10.1109/5GWF52925.2021.00079
F. Moscatelli, G. Landi, A. Mesodiakaki, M. Gatzianas, G. Kalfas et al., “5G-COMPLETE: Service-Driven Slice Management over Heterogeneous 5G Infrastructures,” 2021 IEEE 26th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), 2021, pp. 1-6, doi: 10.1109/CAMAD52502.2021.9617774.
E.Theodoropoulou, I. Mesogiti, F. Setaki, K. Filis, G. Lyberopoulos, A. Mesodiakaki, M. Gatzianas, C. Vagionas, G. Kalfas, M. Agus, A. Pagano, “Top Challenges in 5G Densification”, Artificial Intelligence Applications and Innovations. AIAI 2021 IFIP WG 12.5 International Workshops. AIAI 2021. IFIP Advances in Information and Communication Technology, Hersonisos, Crete, Greece, vol 628. Springer, Cham. https://doi.org/10.1007/978-3-030-79157-5_11
E. Ruggeri, D. Spasopoulos, C. Vagionas, G. Kalfas, R. M. Oldenbeuving, P. W. L. van Dijk, C. G.H. Roeloffzen, N. Pleros, A. Miliou, “4×10 Gb/s WDM Fiber Wireless multi-IFoF Reconfigurable Fronthaul using a low-loss Si3N4 ROADM for mmWave 5G,” 2021 Optical Fiber Communications Conference and Exhibition (OFC), 2021, pp. 1-3.
A. Tsakyridis, E. Ruggeri, G. Kalfas, R.M. Oldenbeuving, P.W.L. van Dijk, C. Roeloffzen, Y. Leiba, A. Miliou, N. Pleros, C. Vagionas, “A Flexible and Reconfigurable Si3N4 ROADM-enabled 5G mmWave IFoF Fiber Wireless Fronthaul with 60 GHz beamsteering capabilities,” 2020 European Conference on Optical Communications (ECOC), 2020, pp. 1-4, doi: 10.1109/ECOC48923.2020.9333186.
E. Ruggeri, C. Vagionas, N. Karagiorgos, A. Tsakyridis, Y. Leiba, G. Kalfas, et al., “Multi-user IFoF uplink transmission over a 32-element 60GHz phased array antenna enabling both Frequency and Spatial division multiplexing,” 45th European Conference on Optical Communication (ECOC 2019), 2019, pp. 1-4, doi: 10.1049/cp.2019.0780.
E. Datsika, J. Vardakas, G. Kalfas, C. Vagionas, A. Mesodiakaki and C. Verikoukis, “End-to-End Delay Performance of Analog Fiber Wireless Architecture for 5G NR Fronthaul,” 2020 22nd International Conference on Transparent Optical Networks (ICTON), 2020, pp. 1-4, doi: 10.1109/ICTON51198.2020.9203504.
E. Theodoropoulou, I. Mesogiti, G. Lyberopoulos, G. Kalfas, C. Vagionas, N. Pleros, A. Pagano, M. Agus, L. A. Neto, N. Psaromanolakis, A. Ropodi, “A Framework to Support the 5G Densification”, Artificial Intelligence Applications and Innovations AIAI 2020 IFIP WG 12.5 International Workshops. 2020; 585:3-14. Published 2020 May 4. doi:10.1007/978-3-030-49190-1_1.
E. Ruggeri, A. Tsakyridis, C. Vagionas, G. Kalfas, R. M. Oldenbeuving, P. W. L. van Dijk, C. G. H. Roeloffzen, Y. Leiba, N. Pleros, and A. Miliou, “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,” 2020 Optical Fiber Communications Conference and Exhibition (OFC), San Diego, CA, USA, 2020, pp. 1-3.
C. Vagionas, E. Ruggeri, G. Kalfas, B. Sirbu, Y. Leiba, K. Kanta, G. Giannoulis, C. Caillaud, G. Cerulo, F. Mallecot, T. Raddo, A. Mesodiakaki, M. Gatzianas, D. Apostolopoulos, H. Avramopoulos, I. T. Monroy, T. Tekin, A. Miliou, N. Pleros, “An end-to-end 5G fiber wireless A-RoF/IFoF link based a on a 60 GHz beamsteering antenna and an InP EML”, SPIE Photonics West 2020, San Francisco, USA.
E. Ruggeri, A. Tsakyridis, C. Vagionas, G. Kalfas, A. Miliou, N. Pleros, Y. Leiba, “A Fiber Wireless A-RoF/IFoF Uplink Transmission of up to 0.6Gb/s User Data Rate over a 32-element 60GHz Beam-steering Antenna for 5G Fronthaul Networks”, Proceedings of International Conference on Interactive Mobile Communication, Technologies and Learning (IMCL) 2019, Thessaloniki, Greece.
E. Ruggeri, A. Tsakyridis, G. Kalfas, A. Miliou, N. Pleros, C. Vagionas, Y. Leiba, “Fiber Wireless A-RoF/IFoF Uplink of 0.4Gb/s 16-QAM and 0.6Gb/s QPSK Over a 32-Element 60GHz Phased Array Antenna for 5G Fronthaul Networks,” 2019 International Topical Meeting on Microwave Photonics (MWP), Ottawa, ON, Canada, 2019, pp. 1-4.
G. Kalfas, M. Agus, A. Pagano, L. Anet Neto, A. Mesodiakaki, Ch. Vagionas, J. Vardakas, E. Datsika, C. Verikoukis, N. Pleros, “Converged Analog Fiber-Wireless Point-to-Multipoint Architecture for eCPRI 5G Fronthaul Networks”, 2019 IEEE Global Communications Conference (GLOBECOM), Waikoloa, HI, USA, 2019, pp. 1-6.
C. Mitsolidou, C. Vagionas, A. Mesodiakaki, P. Maniotis, G. Kalfas, A. Miliou, N. Pleros, C.G.H. Roeloffzen, P. W. L. van Dijk, R.M. Oldenbeuving, “A 5G C-RAN Architecture for Hot-Spots: OFDM based Analog IFoF PHY and MAC Layer Design”, 2019 European Conference on Networks and Communications (EuCNC), Valencia, Spain, 2019, pp. 464-468.
M. Gatzianas, G. Kalfas, C. Vagionas, A. Mesodiakaki, “Downlink Coordinated Beamforming Policies for 5G Millimeter Wave Dense Networks”, 2019 European Conference on Networks and Communications (EuCNC), Valencia, Spain, 2019, pp. 342-346.
T. R. Raddo, S. Rommel, I. Tafur-Monroy, C. Vagionas, G. Kalfas, N. Pleros, “Analog Radio-over-Fiber 5G Fronthaul Systems: blueSPACE and 5G-PHOS Projects Convergence”, 2019 European Conference on Networks and Communications (EuCNC), Valencia, Spain, 2019, pp. 479-484.
A. Mesodiakaki, P. Maniotis, G. Kalfas, C. Vagionas, J. Vardakas, E. Kartsakli, A. Antonopoulos, C. Verikoukis, N. Pleros, “Delay Analysis of a Gated Service MAC Protocol for Fiber-Wireless 5G MmWave C-RANs”, ICC 2019 – 2019 IEEE International Conference on Communications (ICC), Shanghai, China, 2019, pp. 1-6.
C. Mitsolidou, C. Vagionas, A. Mesodiakaki, P. Maniotis, G. Kalfas, C. G. H. Roeloffzen P. W. L. van Dijk, R. M. Oldenbeuving, A. Miliou, N. Pleros, “Analog IFoF/mmWave 5G Optical Fronthaul Architecture for Hot-Spots using Multi-Channel OFDM-based WDM signals”, 23rd Conference on Optical Network Design and Modelling, Athens – Greece, 13/05/2019-16/05/2019.
A. Mesodiakaki, P. Maniotis, G. Kalfas, C. Vagionas, J. Vardakas, E. Kartsakli, A. Antonopoulos, E. Datsika, C. Verikoukis, N. Pleros, “A Gated Service MAC Protocol for 5G Fiber-Wireless Cloud-Radio Access Networks”, 23rd Conference on Optical Network Design and Modelling, Athens – Greece, 13/05/2019-16/05/2019.
E. Datsika, E. Kartsakli, J. S. Vardakas, A. Antonopoulos, G. Kalfas, P. Maniotis, C. Vagionas, N. Pleros, C. Verikoukis, “QoS-aware resource management for converged Fiber Wireless 5G Fronthaul networks”, 2018 IEEE Global Communications Conference (GLOBECOM), Abu Dhabi, United Arab Emirates, 2018, pp. 1-5.
I. Mesogiti, E. Theodoropoulou, K. Filis, G. Limperopoulos, A. Ropodi, K. Tsagkaris, P. Demestichas, N. Pleros, G. Kalfas, C. Vagionas, “Fiber-Wireless Fronthaul/Backhaul Network Architectures for 5G,” 2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Barcelona, 2018, pp. 1-5.
A. Mesodiakaki, P. Maniotis, C. Vagionas, M. Gatzianas, E. Datsika, E. Kartsakli, J. Vardakas, G. Kalfas, “Medium-transparent Dynamic Bandwidth Allocation for 5G Fiber Wireless Dense Fronthaul Networks,” 2018 IEEE 23rd International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Barcelona, 2018, pp. 1-6.
C. Vagionas, S. Papaioannou, G. Kalfas, N. Argyris, K. Kanta, N. Illiadis, G. Giannoulis, D. Apostolopoulos, H. Avramopoulos, N. Pleros, “A six-channel mmWave/IFoF link with 24Gb/s Capacity for 5G Fronthaul Networks,” 2018 International Topical Meeting on Microwave Photonics (MWP), Toulouse, 2018, pp. 1-4.
C. Vagionas, S. Papaioannou, N. Argyris, K. Kanta, N. Iliadis, G. Giannoulis, D. Apostolopoulos, H. Avramopoulos, C. Caillaud, H. Debregeas, G. Kalfas, N. Pleros, “A 6-Band 12Gb/s IFoF/V-Band Fiber-Wireless Fronthaul Link Using an InP Externally Modulated Laser,” 2018 European Conference on Optical Communication (ECOC), Rome, 2018, pp. 1-3.
G. Kalfas, P. Maniotis, A. Mesodiakaki, S. Papaioannou, C. Vagionas, M. Gatzianas, E. Kartsakli, J. Vardakas, “Medium-Transparent Packet-Based Fronthauling for 5G Hot-Spot Networks,” 2018 20th International Conference on Transparent Optical Networks (ICTON), Bucharest, 2018, pp. 1-4.
S. Papaioannou, G. Kalfas, C. Vagionas , P. Maniotis, A. Miliou, N. Pleros, L. Anet Neto, P. Chanclou, M. Haj-Ali, P. Bakopoulos, C. Caillaud, H. Debregeas, M. B. Sirbu, Y. Eichhammer, E. Theodoropoulou, G. Lyberopoulos, E. Kartsakli, J. Vardakas, G.Torfs, X. Yin, K. Tsagkaris, P. Demestichas, G. Giannoulis, H. Avramopoulos, G. Lentaris, E. Varvarigos, I. Tafur Monroy, E. Dayan, Y. Leiba, I. Dimogiannis, A. Kontogiannis, R. Magri, A. Tartaglia, C. Roeloffzen, R. Oldenbeuving, “5G mm Wave Networks Leveraging Enhanced Fiber-Wireless Convergence for High-Density Environments: The 5G-PHOS Approach,” 2018 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), Valencia, 2018, pp. 1-5.
S. Papaioannou, G. Kalfas, C. Vagionas, C. Mitsolidou, P. Maniotis, A. Miliou, N. Pleros, “5G small-cell networks leveraging optical technologies with mm-wave massive MIMO and MT-MAC protocols,” Proc. SPIE 10559, Broadband Access Communication Technologies XII, 105590B, 29 January 2018.
G. Kalfas, J. Vardakas, L. Alonso, Ch. Verikoukis, N. Pleros, “Medium Transparent MAC access schemes for seamless packetized fronthaul in mm-wave 5G picocellular networks”, 17th IEEE ICTON, July 2017, Girona, Spain.
G. Kalfas, P. Maniotis, M. Oikonomakou, E, Kartsakli, J. Vardakas, N. Pleros, Ch. Verikoukis, “On converged Medium-Transparent MAC protocols for mm-wave Fiber-Wireless Networks”, IEEE CAMAD, June 2017, Lund, Sweden.
N. Pleros, G. Kalfas, C. Mitsolidou, C. Vagionas, D. Tsiokos, A. Miliou, “High-throughput and low-latency 60GHz small-cell network architectures over radio-over-fiber technologies”, Proc. SPIE 10128, Broadband Access Communication Technologies XI, 101280I, January 28, 2017.
G. Kalfas, J. Vardakas, N. Pleros, L. Alonso, C. Verikoukis, “Delay analysis of converged Medium Transparent fixed service Optical-Wireless networks”, IEEE Globecom, December 2016, Washington D.C., USA.
D. Tsiokos, C. Mitsolidou, C. Vagionas, G. Kalfas, A. Miliou and N. Pleros, “Converged optical-wireless access networks enabling fixed and 60 GHz connectivity in WDM-PONs,” 2016 18th International Conference on Transparent Optical Networks (ICTON), Trento, 2016, pp. 1-4.
C. Mitsolidou, G. Kalfas, D. Tsiokos, N. Pleros and A. Miliou, “A WDM RoF system for heterogeneous 5 GHz/60 GHz wireless applications in MTMAC-enabled networks,” 2014 IEEE 19th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD), Athens, 2014, pp. 163-167.
A. Miliou, D. Tsiokos, Ch. Mitsolidou, G. Kalfas, and N. Pleros, “Heterogeneous 60 GHz/ 5 GHz Broadband Optical Wireless Systems supporting Dynamic Bandwidth Allocation”, 16th International Conference on Transparent Optical Networks (ICTON), Graz, Austria, July 2014.
G. Kalfas, D. Tsiokos, N. Pleros, C. Verikoukis, M. Maier, “Towards medium transparent MAC protocols for cloud-RAN mm-wave communications over next-generation optical wireless networks”, 15th International Conference on Transparent Optical Networks (ICTON), Cartagena, Spain, June 2013.
G. Kalfas, S. Markou, D. Tsiokos, C. Verikoukis, N. Pleros, “Very High Throughput 60GHz wireless enterprise networks over GPON infrastructure”, Optical-Wireless Workshop, ICC, Budapest, June 2013.
P. Maniotis, G. Kalfas, L. Alonso, C. Verikoukis, N. Pleros, “Throughput and Delay Fairness through an agile Medium-Transparent MAC protocol for 60GHz Fiber-Wireless LAN networks”, WCNC 2012 Hybrid Optical-Wireless Access Networks Workshop, Paris, France, 1st April 2012
G. Kalfas, N. Pleros, K. Tsagkaris, L. Alonso, C. Verikoukis, “Performance Analysis of a Medium-Transparent MAC protocol for 60GHz Radio-over-Fiber Networks”, IEEE Globecom, 5-9 December 2011, Houston, Texas.
G. Kalfas, N. Pleros, K. Tsagkaris, C. Verikoukis, “60 GHz Radio-over-Fiber networks: Optical-Wireless Convergence through Medium-Transparent MAC protocols”, Euro-NF International Workshop on Traffic and Congestion Control for the Future Internet, 31 March – 1 April 2011, Volos, Greece
G. Kalfas, P. Nikolaidis, N. Pleros, and G.I. Papadimitriou, “A Radio-Over-Fiber Network with MAC protocol that provides intelligent and dynamic resource allocation”, IEEE/LEOS Summer Topicals 2009, MB2. 3, Newport Beach, CA, USA, 2009.
G.Kalfas, G.I. Papadimitriou, P. Nicopolitidis, A.S. Pomportsis “LE-WiMARK: An intelligent power efficient Ad Hoc MAC protocol with Busy Tone and Power Control”, IEEE International Symposium on Wireless Pervasive Computing 2008, 7-9 May 2008, Santorini, Greece.
G.Kalfas, G.I. Papadimitriou, P. Nicopolitidis, A.S. Pomportsis “WiMARK: An intelligent MAC protocol for Ad Hoc WLANs with Busy Tone and Power Control”, 13TH European Wireless Conference EW2007, Paris 1-4 April 2007
