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Anastasios Papazafeiropoulos

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STAR-RIS-Assisted Communication Radar Coexistence: Analysis and Optimization

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Apr 25, 2024
Anastasios Papazafeiropoulos, Pandelis Kourtessis, Symeon Chatzinotas

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Performance of Double-Stacked Intelligent Metasurface-Assisted Multiuser Massive MIMO Communications in the Wave Domain

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Feb 26, 2024
Anastasios Papazafeiropoulos, Pandelis Kourtessis, Symeon Chatzinotas

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Two-Timescale Design for Active STAR-RIS Aided Massive MIMO Systems

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Feb 15, 2024
Anastasios Papazafeiropoulos, Hanxiao Ge, Pandelis Kourtessis, Tharmalingam Ratnarajah, Symeon Chatzinotas, Symeon Papavassiliou

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A Low-Complexity Solution to Sum Rate Maximization for IRS-assisted SWIPT-MIMO Broadcasting

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Feb 28, 2023
Vaibhav Kumar, Anastasios Papazafeiropoulos, Muhammad Fainan Hanif, Le-Nam Tran, Mark F. Flanagan

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Cooperative Hybrid Networks with Active Relays and RISs for B5G: Applications, Challenges, and Research Directions

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Jun 23, 2022
Zaid Abdullah, Steven Kisseleff, Wallace Alves Martins, Gaojie Chen, Luca Sanguinetti, Konstantinos Ntontin, Anastasios Papazafeiropoulos, Symeon Chatzinotas, Bjorn Ottersten

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Coverage Probability of STAR-RIS assisted Massive MIMO systems with Correlation and Phase Errors

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May 31, 2022
Anastasios Papazafeiropoulos, Zaid Abdullah, Pandelis Kourtessis, Steven Kisseleff, Ioannis Krikidis

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Toward Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting

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Aug 18, 2021
Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Emil Björnson, Dimitrios Selimis, Wallace Alves Martins, Steven Kisseleff, Sergi Abadal, Eduard Alarcón, Anastasios Papazafeiropoulos, Fotis Lazarakis, Angeliki Alexiou, Symeon Chatzinotas

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Hybrid Precoding for Multi-User Millimeter Wave Massive MIMO Systems: A Deep Learning Approach

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Nov 11, 2019
Ahmet M. Elbir, Anastasios Papazafeiropoulos

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