Channel quantization design in multiuser MIMO systems: Asymptotic versus practical conclusions. - Emil Björnson; Konstantinos Ntontin; Björn E. Ottersten (ICASSP, 2011)

Green-T: Enabling techniques for energy efficient mobile terminals. - Angelos Antonopoulos 001; Joan Bas; Marcos D. Katz; Henrik Lundqvist; Tiago Moreira; Konstantinos Ntontin; Francisco Vázquez; Nizar Zorba (CAMAD, 2012)

Towards the performance and energy efficiency comparison of spatial modulation with conventional single-antenna transmission over generalized fading channels. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (CAMAD, 2012)

Adaptive Generalized Space Shift Keying (GSSK) Modulation for MISO Channels: A New Method for High Diversity and Coding Gains. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (VTC Fall, 2012)

Performance analysis of antenna subset selection in Space Shift Keying systems. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (CAMAD, 2013)

Performance analysis of multistream Spatial Modulation with maximum-likelihood detection. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (GLOBECOM, 2013)

Antenna subset selection for spatial modulation: A novel and energy efficient single RF technique. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (ICC, 2013)

Adaptive generalized space shift keying. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (EURASIP J. Wirel. Commun. Netw., 2013)

A Low-Complexity Method for Antenna Selection in Spatial Modulation Systems. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (IEEE Commun. Lett., 2013)

Is Analog Network Coding more energy efficient than TDMA? - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (CAMAD, 2014)

Error rate analysis and optimal power allocation in multiple access relay channels with Analog Network Coding. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (ICC, 2014)

Analog Network Coding in the Multiple Access Relay Channel: Error Rate Analysis and Optimal Power Allocation. - Konstantinos Ntontin; Marco Di Renzo; Ana I. Pérez-Neira; Christos V. Verikoukis (IEEE Trans. Wirel. Commun., 2015)

Exploiting spatial modulation and analog network coding for the design of energy-efficient wireless networks. - Konstantinos Ntontin (2015)

Dedicated RF Power Transfer for Wirelessly-Powered Wearable Medical Sensors. - Fanny Parzysz; Konstantinos Ntontin; Kostas Kalaboukas; Christos V. Verikoukis (GLOBECOM, 2016)

System-level performance analysis of relay-aided multiple-antenna cellular networks. - Konstantinos Ntontin; Marco Di Renzo; Christos V. Verikoukis (PIMRC, 2016)

Analog-Network-Coded Two-Way Relaying Under the Impact of CSI Errors and Network Interference. - Konstantinos Ntontin; Marco Di Renzo; Christos V. Verikoukis (IEEE Trans. Veh. Technol., 2016)

D2D-Aware Device Caching in mmWave-Cellular Networks. - Nikolaos Giatsoglou; Konstantinos Ntontin; Elli Kartsakli; Angelos Antonopoulos 001; Christos V. Verikoukis (IEEE J. Sel. Areas Commun., 2017)

On the Feasibility of Full-Duplex Relaying in Multiple-Antenna Cellular Networks. - Konstantinos Ntontin; Marco Di Renzo; Christos V. Verikoukis (IEEE Trans. Commun., 2017)

Toward the Performance Enhancement of Microwave Cellular Networks Through THz Links. - Konstantinos Ntontin; Christos V. Verikoukis (IEEE Trans. Veh. Technol., 2017)

Multi-Antenna Relaying and Reconfigurable Intelligent Surfaces: End-to-End SNR and Achievable Rate. - Konstantinos Ntontin; Jian Song 001; Marco Di Renzo (CoRR, 2019)

Reconfigurable Intelligent Surfaces vs. Relaying: Differences, Similarities, and Performance Comparison. - Konstantinos Ntontin; Marco Di Renzo; Jian Song 001; Fotis I. Lazarakis; Julien de Rosny; Dinh Thuy Phan Huy; Osvaldo Simeone; Rui Zhang 006; Mérouane Debbah; Geoffroy Lerosey; Mathias Fink; Sergei A. Tretyakov; et al. (CoRR, 2019)

Real-Time Demonstration of ARoF Fronthaul for High-Bandwidth mm-Wave 5G NR Signal Transmission over Multi-Core Fiber. - Simon Rommel; Bruno Cimoli; Evangelos Grivas; Delphin Dodane; Álvaro Morales; Evangelos Pikasis; Jerome Bourderionnet; Gilles Feugnet; Juliana Barros Carvalho; Michail Katsikis; Konstantinos Ntontin; Dimitrios Kritharidis; et al. (EuCNC, 2020)

Time- vs. Frequency-Domain Channel Estimation in MIMO LOS Frequency-Selective Channels. - Konstantinos Ntontin; Nikolaos Skentos; Fotis I. Lazarakis (ISSPIT, 2020)

On the Rate and Energy Efficiency Comparison of Reconfigurable Intelligent Surfaces with Relays. - Konstantinos Ntontin; Marco Di Renzo; Fotis I. Lazarakis (SPAWC, 2020)

Reconfigurable Intelligent Surfaces vs. Relaying: Differences, Similarities, and Performance Comparison. - Marco Di Renzo; Konstantinos Ntontin; Jian Song 001; Fadil Habibi Danufane; Xuewen Qian; Fotis I. Lazarakis; Julien de Rosny; Dinh-Thuy Phan-Huy; Osvaldo Simeone; Rui Zhang 006; Mérouane Debbah; Geoffroy Lerosey; et al. (IEEE Open J. Commun. Soc., 2020)

Relay-Aided Outdoor-to-Indoor Communication in Millimeter-Wave Cellular Networks. - Konstantinos Ntontin; Christos V. Verikoukis (IEEE Syst. J., 2020)

System-Level Analysis of a Self-Fronthauling and Millimeter-Wave Cloud-RAN. - Konstantinos Ntontin; Christos V. Verikoukis (IEEE Trans. Commun., 2020)

Toward Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting. - 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 (CoRR, 2021)

Simultaneous Control Information and Power Transmission for Reconfigurable Intelligent Surfaces. - Steven Kisseleff; Konstantinos Ntontin; Wallace A. Martins; Symeon Chatzinotas; Björn E. Ottersten (CoRR, 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)

Real-time high-bandwidth mm-wave 5G NR signal transmission with analog radio-over-fiber fronthaul over multi-core fiber. - Simon Rommel; Evangelos Grivas; Bruno Cimoli; Delphin Dodane; Álvaro Morales; Evangelos Pikasis; Jerome Bourderionnet; Gilles Feugnet; Juliana Barros Carvalho; Michail Katsikis; Konstantinos Ntontin; Dimitrios Kritharidis; et al. (EURASIP J. Wirel. Commun. Netw., 2021)

Reconfigurable Intelligent Surface Optimal Placement in Millimeter-Wave Networks. - Konstantinos Ntontin; Alexandros-Apostolos A. Boulogeorgos; Dimitrios Selimis; Fotis I. Lazarakis; Angeliki Alexiou; Symeon Chatzinotas (IEEE Open J. Commun. Soc., 2021)

Time vs. Unit Cell Splitting for Autonomous Reconfigurable Intelligent Surfaces. - Konstantinos Ntontin; Alexandros-Apostolos A. Boulogeorgos; Zaid Abdullah; Agapi Mesodiakaki; Sergi Abadal; Symeon Chatzinotas (GLOBECOM, 2022)

Successive Decode-and-Forward Relaying with Reconfigurable Intelligent Surfaces. - Zaid Abdullah; Steven Kisseleff; Konstantinos Ntontin; Wallace Alves Martins; Symeon Chatzinotas; Björn E. Ottersten (ICC, 2022)

Double-RIS Communication with DF Relaying for Coverage Extension: Is One Relay Enough? - Zaid Abdullah; Steven Kisseleff; Konstantinos Ntontin; Wallace Alves Martins; Symeon Chatzinotas; Björn E. Ottersten (ICC, 2022)

Millimeter Wave vs. THz Energy Harvesting for Autonomous Reconfigurable Intelligent Surfaces. - Konstantinos Ntontin; Symeon Chatzinotas (ICC Workshops, 2022)

Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting. - Konstantinos Ntontin; Alexandros-Apostolos A. Boulogeorgos; Emil Björnson; Dimitrios Selimis; Wallace Alves Martins; Sergi Abadal; Angeliki Alexiou; Fotis I. Lazarakis; Steven Kisseleff; Symeon Chatzinotas (VTC Spring, 2022)

Maximizing the Number of Served Users in a Smart City using Reconfigurable Intelligent Surfaces. - Progress Zivuku; Steven Kisseleff; Van-Dinh Nguyen; Konstantinos Ntontin; Wallace A. Martins; Symeon Chatzinotas; Björn E. Ottersten (WCNC, 2022)

Joint Spatial Division and Multiplexing for FDD in Intelligent Reflecting Surface-Assisted Massive MIMO Systems. - Anastasios K. Papazafeiropoulos; Pandelis Kourtessis; Konstantinos Ntontin; Symeon Chatzinotas (IEEE Trans. Veh. Technol., 2022)

ETHER: Energy- and Cost-Efficient Framework for Seamless Connectivity over the Integrated Terrestrial and Non-terrestrial 6G Networks. - Lechoslaw Tomaszewski; Robert Kolakowski; Agapi Mesodiakaki; Konstantinos Ntontin; Angelos Antonopoulos 001; Nikolaos Pappas 001; Marco Fiore 001; Mohammadreza Mosahebfard; Simon Watts; Philip Harris; Chih-Kuang Lin; Ana Rita Santiago; et al. (AIAI (Workshops), 2023)

Localization as a Key Enabler of 6G Wireless Systems: A Comprehensive Survey and an Outlook. - Stylianos E. Trevlakis; Alexandros-Apostolos A. Boulogeorgos; Dimitrios Pliatsios; Jorge Querol; Konstantinos Ntontin; Panagiotis G. Sarigiannidis; Symeon Chatzinotas; Marco Di Renzo (IEEE Open J. Commun. Soc., 2023)

Cable-Aided Distributed Reconfigurable Intelligent Surface (CRIS): New Paradigm for Wireless Communication Networks. - Steven Kisseleff; Konstantinos Ntontin; Symeon Chatzinotas (IEEE Commun. Mag., 2023)

Wireless Energy Harvesting for Autonomous Reconfigurable Intelligent Surfaces. - 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 (IEEE Trans. Green Commun. Netw., 2023)

Time- and Unit-Cell Splitting Comparison for the Autonomous Operation of Reconfigurable Intelligent Surfaces. - Konstantinos Ntontin; Emil Björnson; Alexandros-Apostolos A. Boulogeorgos; Zaid Abdullah; Agapi Mesodiakaki; Sergi Abadal; Symeon Chatzinotas (IEEE Trans. Green Commun. Netw., 2023)

Resource Allocation for Geographical Fairness in Multi-RIS-Aided Outdoor-to-Indoor Communications. - Progress Zivuku; Steven Kisseleff; Konstantinos Ntontin; Anastasios K. Papazafeiropoulos; Abuzar Babikir Mohammad Adam; Symeon Chatzinotas; Björn E. Ottersten (ICC, 2024)

STAR-RIS for Reliable Multi-User Networks: Outage and Diversity Analysis. - Mostafa Samy; Hayder Al-Hraishawi; Abuzar B. M. Adam; Konstantinos Ntontin; Symeon Chatzinotas; Björn E. Ottersten (PIMRC, 2024)

Enhancing Spectral and Energy Efficiency with Multi-Sector Beyond-Diagonal RIS. - Mostafa Samy; Abuzar B. M. Adam; Konstantinos Ntontin; Hayder Al-Hraishawi; Symeon Chatzinotas; Björn E. Ottersten (SPAWC, 2024)

Statistical Distribution of Beamforming Gains in Satellite Swarms Under Imperfect Phase Synchronization. - Biniam Tamiru; Konstantinos Ntontin; Liz Martinez Marrero; Symeon Chatzinotas (VTC Fall, 2024)

ETHER: A 6G Architectural Framework for 3D Multi-Layered Networks. - Konstantinos Ntontin; Lechoslaw Tomaszewski; Joan Adrià Ruiz-de-Azua; A. Cárdenas; R. Pueyo Centelles; C.-K. Lin; Agapi Mesodiakaki; A. Antonopoulos; Nikolaos Pappas 001; Marco Fiore 001; Sergio Aguilar; S. Watts; et al. (WCNC, 2024)

RIS-Empowered Relays for Cooperative NOMA. - Mostafa Samy; Hayder Al-Hraishawi; Konstantinos Ntontin; Symeon Chatzinotas; Björn E. Ottersten (WCNC, 2024)

Joint RIS-Aided Precoding and Multislot Scheduling for Maximum User Admission in Smart Cities. - Progress Zivuku; Steven Kisseleff; Van-Dinh Nguyen; Wallace A. Martins; Konstantinos Ntontin; Symeon Chatzinotas; Björn E. Ottersten (IEEE Trans. Commun., 2024)

Cooperative Hybrid Networks with Active Relays and RISs for B5G: Applications, Challenges, and Research Directions. - Zaid Abdullah; Steven Kisseleff; Wallace Alves Martins; Gaojie Chen; Luca Sanguinetti; Konstantinos Ntontin; Anastasios K. Papazafeiropoulos; Symeon Chatzinotas; Björn E. Ottersten (IEEE Wirel. Commun., 2024)

Perpetual Reconfigurable Intelligent Surfaces Through In-Band Energy Harvesting: Architectures, Protocols, and Challenges. - Konstantinos Ntontin; Alexandros-Apostolos A. Boulogeorgos; Sergi Abadal; Agapi Mesodiakaki; Symeon Chatzinotas; Björn E. Ottersten (IEEE Veh. Technol. Mag., 2024)

Architectural Aspects of Unified Terrestrial and Non-terrestrial Mobile Networks. - Lechoslaw Tomaszewski; Mohammadreza Mosahebfard; Joan Adrià Ruiz-de-Azua; Angelos Antonopoulos 001; Alexis Duque; Agapi Mesodiakaki; Konstantinos Ntontin; Sergio Aguilar; Nikolaos Pappas 001; Hamada Alshaer (AIAI Workshops (1), 2025)

Massive RF Inter-Satellite Links for Massive Non-Terrestrial Networks. - Steven Kisseleff; Victor Monzon Baeza; Hayder Al-Hraishawi; Konstantinos Ntontin; Wallace A. Martins; Symeon Chatzinotas (IEEE Commun. Mag., 2025)

QTCAJOSA: Low-Complexity Joint Offloading and Subchannel Allocation for NTN-Enabled IoMT. - Alejandro Flores C.; Konstantinos Ntontin; Ashok Bandi; Symeon Chatzinotas (CoRR, 2025)

Geographical Fairness in Multi-RIS-Assisted Networks in Smart Cities: A Robust Design. - Progress Zivuku; Abuzar B. M. Adam; Konstantinos Ntontin; Steven Kisseleff; Vu Nguyen Ha; Symeon Chatzinotas; Björn E. Ottersten (IEEE Trans. Commun., 2025)