Deliverables Documents, reports (8) ARIADNE use case definition and system requirements Report on Task 1.1 Standardisation activities Regularly updated list of standardisation activities of the project Initial results in D-band directional links analysis, system performance assessment, and algorithm designs Initial report on Task 2.1, definition of the propagation environment in ARIADNE scenarios, parameters and their modelling, first results on the performance of beamforming algorithms. Dissemination and Communication Plan Initial results in D-band Ad-hoc wireless connectivity analysis, communication theory beyond Shannon, and algorithm design Initial report on Tasks 2.2 and 2.3 definition of ad-hoc wireless nodes scenario, introduction of tools from stochastic geometry and random matrix theory, definition of D-band specific information theoretic framework, incorporation of channel models and metasurfaces functionality, analysis of machine learning approaches. Initial results on adaptive directional LOS and NLOS reliable connectivity Reports the PHY and MAC approaches derived in the context of Task 4.1. Report on simulations of first RFIC implementations This report will review the first RFIC designs for the selected aggregation scheme, the frontend, and the baseband interface. Report on baseband and antenna concepts It will describe the preliminary baseband DSP, offline algorithms, carrier aggregation schemes and down-selection of candidates for implementation, including the associated antenna concepts and metasurface approaches. Publications Conference proceedings (39) Efficient Conversion of TM Surface Wave into TM Leaky Wave by Metasurface Author(s): Sergei Tretyakov, Svetlana Tcvetkova Published in: 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, ISBN 978-88-31299-02-2 Publisher: IEEE DOI: 10.23919/eucap51087.2021.9411277 Initial Investigation of D-band Small-Scale Fading Statistics Author(s): Dimitrios Selimis, Konstantinos Ntontin, Fotis Lazarakis, Katsuyuki Haneda Published in: 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, Page(s) 1-5, ISBN 978-88-31299-02-2 Publisher: IEEE DOI: 10.23919/eucap51087.2021.9411286 Rain Attenuation of Millimeter Waves Investigated from Drop Size Distributions Author(s): Ignacio Mata-Alonso, UPM José M. Riera, UPM Domingo Pimienta, UPM Published in: Proceedings of XVII European Conference on Antennas and Propagation EuCAP 2023, 2023, ISBN 978-1-6654-7541-9 Publisher: IEEE DOI: 10.23919/eucap57121.2023.10133385 Throughput analysis of RIS-assisted UAV wireless systems under disorientation and misalignment Author(s): Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Marco Di Renzo, CNRS Published in: GLOBECOM 2022 - 2022 IEEE Global Communications Conference, 2022, ISBN 978-1-6654-3541-3 Publisher: IEEE DOI: 10.48550/arxiv.2212.05214 Analytical Models of Reflection and Scattering by Finite-Size Anomalously Reflecting Metasurfaces Author(s): Ana Diaz-Rubio, Svetlana Tcvetkova, Sergei Tretyakov Published in: 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, Page(s) 1-3, ISBN 978-88-31299-02-2 Publisher: IEEE DOI: 10.23919/eucap51087.2021.9411336 Atmospheric propagation effects in the D-band with application to 5G-6G wireless communication systems Author(s): José M. Riera, UPM Pedro Garcia-del-Pino, UPM Domingo Pimienta, UPM Published in: Proceedings of URSI AT-AP RASC 2022, Issue 2022, 2022, Page(s) 1-5, ISBN 978-1-6654-9986-6 Publisher: URSI DOI: 10.23919/at-ap-rasc54737.2022.9814352 Stochastic Characterization of outdoor Terahertz Channels Through Mixture Gaussian Processes Author(s): Evangelos Papasotiriou, UPRC Alexandros-Apostolos Boulogeorgos, UPRC Mar Francis De Guzman, Aalto University Katsuyuki Haneda, Aalto University Angeliki Alexiou, UPRC Published in: 2022, ISBN 978-1-6654-8054-3 Publisher: IEEE DOI: 10.1109/pimrc54779.2022.9977784 Channel Estimation for RIS-Aided mmWave MIMO Systems Author(s): Jiguang He, Markus Leinonen, Henk Wymeersch, Markku Juntti Published in: GLOBECOM 2020 - 2020 IEEE Global Communications Conference, 2020, Page(s) 1-6, ISBN 978-1-7281-8298-8 Publisher: IEEE DOI: 10.1109/globecom42002.2020.9348112 Stochastic Analysis of Indoor THz Uplink with Co-Channel Interference and Phase Noise Author(s): Joonas Kokkoniemi, Alexandros-Apostolos A. Boulogeorgos, Mubarak Umar Aminu, Janne Lehtomaki, Angeliki Alexiou, Markku Juntti Published in: 2020 IEEE International Conference on Communications Workshops (ICC Workshops), 2020, Page(s) 1-6, ISBN 978-1-7281-7440-2 Publisher: IEEE DOI: 10.1109/iccworkshops49005.2020.9145251 Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting Author(s): Konstantinos Ntontin, NCSRD Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Dimitrios Selimis, NCSRD Sergo Abadal, UPC Fotis Lazarakis, NCSRD Published in: 2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring), 2022, ISSN 1090-3038 Publisher: IEEE DOI: 10.1109/vtc2022-spring54318.2022.9860773 Stochastic Geometry based Interference Analysis of Multiuser mmWave Networks with RIS Author(s): Joonas Kokkoniemi, Markku Juntti Published in: arXiv > cs, 2021 Publisher: Cornell University DOI: 10.48550/arxiv.2107.06382 Large-scale parameters of spatio-temporal short range indoor backhaul channels at 140 GHz Author(s): Katsuyuki Haneda, Sinh Le Ho Nguyen, Jan Jarvelainen, Aki Karttunen, Jyri Putkonen Published in: Large-scale parameters of spatio-temporal short range indoor backhaul channels at 140 GHz, 2020 Publisher: arXiv Variability of Rain Attenuation in the 100-200 GHz Band Calculated from Experimental Drop Size Distributions Author(s): Santiago Perez-Pena, Jose Manuel Riera, Ana Benarroch, Domingo Pimienta-del-Valle, Pedro Garcia-del-Pino Published in: 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, Page(s) 1-5, ISBN 978-88-31299-02-2 Publisher: IEEE DOI: 10.23919/eucap51087.2021.9411445 Channel Estimation and Hybrid Architectures for RIS-Assisted Communications Author(s): Jiguang He, Joonas Kokkoniemi, Markku Juntti, Nhan Nhuyen, Visa Tapio Published in: arXiv > eess, 2021 Publisher: arXiv DOI: 10.48550/arxiv.2104.07115 Angular response of anomalous reflectors: analysis and design prospects Author(s): Sergei Tretyakov, Ana Diaz-Rubio Published in: 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021 Publisher: IEEE Xplore DOI: 10.23919/eucap51087.2021.9410943 Link budget estimations for millimeter-wave links via anomalous reflectors Author(s): Sergei Kosulnikov, Aalto University Sergei Tretyakov, Aalto University Published in: 2023 Publisher: Aalto University DOI: 10.23919/eucap57121.2023.10133298 Interference Analysis in Reconfigurable Intelligent Surface-Assisted Multiple-Input Multiple-Output Systems Author(s): Jiang Liu, Xuewen Qian, Marco Di Renzo Published in: ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2021, Page(s) 8067-8071, ISBN 978-1-7281-7605-5 Publisher: IEEE DOI: 10.1109/icassp39728.2021.9414684 Channel modeling for reflective phased array type RISs in mmWave networks Author(s): Joonas Kokkoniemi, Markku Juntti Published in: 2022, Page(s) 31-36, ISBN 978-1-4503-8699-9 Publisher: Association for Computing Machinery DOI: 10.1145/3477081.3481675 Performance Evaluation of Reconfigurable Intelligent Surface Assisted D-band Wireless Communication Author(s): Evangelos N. Papasotiriou, Alexandros-Apostolos A. Boulogeorgos, Antigone Stratakou, Angeliki Alexiou Published in: 2020 IEEE 3rd 5G World Forum (5GWF), 2020, Page(s) 360-365, ISBN 978-1-7281-7299-6 Publisher: IEEE DOI: 10.1109/5gwf49715.2020.9221316 Fading Modeling in Indoor THz Wireless Systems Author(s): Evangelos Papasotiriou, UPRC Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Published in: 2021, ISBN 978-1-6654-0259-0 Publisher: ResearchGate DOI: 10.1109/balkancom53780.2021.9593181 Performance Comparison of Near-Field Focused and Conventional Phased Antenna Arrays at 140 GHz Author(s): Dinesh Acharya, Joonas Kokkoniemi, Aarno Parssinen, Markus Berg Published in: 2021 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit), 2021 Publisher: ResearchGate DOI: 10.1109/eucnc/6gsummit51104.2021.9482501 Optimal Reconfigurable Intelligent Surface Placement in Millimeter-Wave Communications Author(s): Konstantinos Ntontin, Dimitrios Selimis, Alexandros-Apostolos A. Boulogeorgos, Antonis Alexandridis, Aris Tsolis, Vasileios Vlachodimitropoulos, Fotis Lazarakis Published in: 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, Page(s) 1-5, ISBN 978-88-31299-02-2 Publisher: IEEE DOI: 10.23919/eucap51087.2021.9411076 Measuring Mobile Broadband. Challenges and Implications for Policymaking. Author(s): Zoraida Frías, UPM Luis Mendo, UPM Published in: 2023 Publisher: UPM Channel Estimation for Hybrid RIS Aided MIMO Communications via Atomic Norm Minimization Author(s): Rafaela Schroeder, Oulu University Jihuang He, Oulu University Markku Juntti, Oulu University Published in: 2022, ISBN 978-1-6654-2672-5 Publisher: arXiv DOI: 10.1109/iccworkshops53468.2022.9814534 A Low-Overhead Hierarchical Beam-tracking Algorithm for THz Wireless Systems Author(s): Giorgos Stratidakis, Georgia D. Ntouni, Alexandros-Apostolos A. Boulogeorgos, Dimitrios Kritharidis, Angeliki Alexiou Published in: 2020 European Conference on Networks and Communications (EuCNC), 2020, Page(s) 74-78, ISBN 978-1-7281-4355-2 Publisher: IEEE DOI: 10.1109/eucnc48522.2020.9200946 Stochastic Geometry Framework for THz Satellite-Airplane Network Analysis Author(s): Joonas Kokkoniemi, Markku Juntti Published in: 2022 Publisher: University of Oulu DOI: 10.1109/dyspan53946.2021.9677325 Beyond Max-SNR: Joint Encoding for Reconfigurable Intelligent Surfaces Author(s): Roy Karasik, Osvaldo Simeone, Marco Di Renzo, Shlomo Shamai Shitz Published in: 2020 IEEE International Symposium on Information Theory (ISIT), 2020, Page(s) 2965-2970, ISBN 978-1-7281-6432-8 Publisher: IEEE DOI: 10.1109/isit44484.2020.9174060 Performance Analysis of Multi-Reconfigurable Intelligent Surface-Empowered THz Wireless Systems Author(s): Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Published in: 2022, ISBN 978-1-5386-8348-4 Publisher: IEEE DOI: 10.1109/icc45855.2022.9838660 Double-directional Multipath Data at 140 GHz Derived from Measurement-based Ray-tracer Author(s): Mar Francis De Guzman, Aalto Katsuyuki Haneda , Aalto Published in: 2022 Publisher: https://acris.aalto.fi/ws/portalfiles/portal/86044117/Double_directional_data_from_MBRT.pdf DOI: 10.1109/vtc2022-spring54318.2022.9860818 Outage Probability Analysis of THz Relaying Systems Author(s): Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou Published in: 2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications, 2020, Page(s) 1-7, ISBN 978-1-7281-4490-0 Publisher: IEEE DOI: 10.1109/pimrc48278.2020.9217121 Passive RIS vs. Hybrid RIS: A Comparative Study on Channel Estimation Author(s): Rafaela Schroeder, Oulu University Jiguang He, Oulu University Markku Juntti, Oulu University Published in: 2021 Publisher: arXiv DOI: 10.1109/vtc2021-spring51267.2021.9448802 On the Rate and Energy Efficiency Comparison of Reconfigurable Intelligent Surfaces with Relays Author(s): Konstantinos Ntontin, Marco Di Renzo, Fotis Lazarakis Published in: 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2020, Page(s) 1-5, ISBN 978-1-7281-5478-7 Publisher: IEEE DOI: 10.1109/spawc48557.2020.9154308 W-Band Confocal Antenna System Based on Liquid Crystal Reflectarray for Beam Scanning Applications Author(s): Patricia Fratilescu, Sergio Garcia-Ruano, G. Perez-Palomino, Eduardo Carrasco Published in: 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021, Page(s) 1-5, ISBN 978-88-31299-02-2 Publisher: IEEE DOI: 10.23919/eucap51087.2021.9410896 Predicting the Line-of-Sight Existence Using Radio Channel Properties and Relative Antenna Locations Author(s): Katsuyuki Haneda, Aalto University Rachana Desai, RapidMiner Published in: 2023 Publisher: Aalto University Initial Results on D Band Channel Measurements in LOS and NLOS Office Corridor Environment Author(s): Joonas Kokkoniemi, UOULU Markku Juntti, UOULU Published in: 2022, ISBN 978-88-31299-04-6 Publisher: University of Oulu DOI: 10.23919/eucap53622.2022.9769258 Pathloss modeling of reconfigurable intelligent surface assisted THz wireless systems Author(s): Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Published in: 2021, ISBN 978-1-7281-7123-4 Publisher: arXiv DOI: 10.48550/arxiv.2102.08757 Analytical Modeling of the Path-Loss for Reconfigurable Intelligent Surfaces – Anomalous Mirror or Scatterer ? Author(s): Marco Di Renzo, Fadil Habibi Danufane, Xiaojun Xi, Julien de Rosny, Sergei Tretyakov Published in: 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2020, Page(s) 1-5, ISBN 978-1-7281-5478-7 Publisher: IEEE DOI: 10.1109/spawc48557.2020.9154326 Characterization of Rain Attenuation in 80-200 GHz Radio Links Considering Non-Spherical Raindrops Author(s): Domingo Pimienta, UPM José M. Riera, UPM Pedro Garcia-del-Pino, UPM Published in: Proceedings of EuCAP 2022, 2022, Page(s) 1-5, ISBN 978-88-31299-04-6 Publisher: European Association on Antennas and Propagation DOI: 10.23919/eucap53622.2022.9769315 Ergodic capacity analysis of reconfigurable intelligent surface assisted wireless systems Author(s): Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou Published in: 2020 IEEE 3rd 5G World Forum (5GWF), 2020, Page(s) 395-400, ISBN 978-1-7281-7299-6 Publisher: IEEE DOI: 10.1109/5gwf49715.2020.9221372 Peer reviewed articles (44) Cascaded Composite Turbulence and Misalignment: Statistical Characterization and Applications to Reconfigurable Intelligent Surface-Empowered Wireless Systems Author(s): Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Marco Di Renzo, CNRS Published in: IEEE Transactions on Vehicular Technology, 2022, Page(s) 3821 - 3836, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2021.3140084 On the Performance of RIS-Assisted Dual-Hop UAV Communication Systems Author(s): Liang Yang, Fanxu Meng, Jiayi Zhang, Mazen O. Hasna, Marco Di Renzo Published in: IEEE Transactions on Vehicular Technology, Issue 69/9, 2020, Page(s) 10385-10390, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2020.3004598 Spectral and Energy Efficiency of IRS-Assisted MISO Communication With Hardware Impairments Author(s): Shaoqing Zhou, Wei Xu, Kezhi Wang, Marco Di Renzo, Mohamed-Slim Alouini Published in: IEEE Wireless Communications Letters, Issue 9/9, 2020, Page(s) 1366-1369, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.2990431 Analytical Performance Assessment of Beamforming Efficiency in Reconfigurable Intelligent Surface-Aided Links Author(s): Giorgos Stratidakis, UPRC Sotiris Droulias, UPRC Angeliki Alexiou, UPRC Published in: IEEE Access, 2021, Page(s) 115922 - 115931, ISSN 2169-3536 Publisher: Institute of Electrical and Electronics Engineers Inc. DOI: 10.1109/access.2021.3105477 How Much do Hardware Imperfections Affect the Performance of Reconfigurable Intelligent Surface-Assisted Systems? Author(s): Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou Published in: IEEE Open Journal of the Communications Society, Issue 1, 2020, Page(s) 1185-1195, ISSN 2644-125X Publisher: IEEE DOI: 10.1109/ojcoms.2020.3014331 Impact of beam misalignment on THz wireless systems Author(s): Joonas Kokkoniemi, Alexandros-Apostolos A. Boulogeorgos, Mubarak Aminu, Janne Lehtomäki, Angeliki Alexiou, Markku Juntti Published in: Nano Communication Networks, Issue 24, 2020, Page(s) 100302, ISSN 1878-7789 Publisher: Elsevier BV DOI: 10.1016/j.nancom.2020.100302 End-to-End Mutual Coupling Aware Communication Model for Reconfigurable Intelligent Surfaces: An Electromagnetic-Compliant Approach Based on Mutual Impedances Author(s): Gabriele Gradoni, Marco Di Renzo Published in: IEEE Wireless Communications Letters, Issue 10/5, 2021, Page(s) 938-942, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2021.3050826 Reconfigurable Intelligent Surface: MIMO or radiating sheet? Author(s): Angeliki Alexiou, UPRC Sotiris Droulias, UPRC Published in: IEEE Transactions on Wireless Communications, 2023, ISSN 1536-1276 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/twc.2023.3302577 Outage Performance Analysis of RIS-Assisted UAV Wireless Systems Under Disorientation and Misalignment Author(s): Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Marco Di Renzo, CNRS Published in: IEEE Transactions on Vehicular Technology, Issue Volume: 71, Issue: 10, 2022, Page(s) 10712 - 10728, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2022.3187050 Overhead-Aware Design of Reconfigurable Intelligent Surfaces in Smart Radio Environments Author(s): Alessio Zappone, Marco Di Renzo, Farshad Shams, Xuewen Qian, Merouane Debbah Published in: IEEE Transactions on Wireless Communications, Issue 20/1, 2021, Page(s) 126-141, ISSN 1536-1276 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/twc.2020.3023578 Intelligent Spectrum Learning for Wireless Networks With Reconfigurable Intelligent Surfaces Author(s): Bo Yang, Xuelin Cao, Chongwen Huang, Chau Yuen, Lijun Qian, Marco Di Renzo Published in: IEEE Transactions on Vehicular Technology, Issue 70/4, 2021, Page(s) 3920-3925, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2021.3064042 Wireless Communications With Reconfigurable Intelligent Surface: Path Loss Modeling and Experimental Measurement Author(s): Wankai Tang, Ming Zheng Chen, Xiangyu Chen, Jun Yan Dai, Yu Han, Marco Di Renzo, Yong Zeng, Shi Jin, Qiang Cheng, Tie Jun Cui Published in: IEEE Transactions on Wireless Communications, Issue 20/1, 2021, Page(s) 421-439, ISSN 1536-1276 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/twc.2020.3024887 Robust Probabilistic-Constrained Optimization for IRS-Aided MISO Communication Systems Author(s): Tuan Anh Le, Trinh Van Chien, Marco Di Renzo Published in: IEEE Wireless Communications Letters, Issue 10/1, 2021, Page(s) 1-5, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.3016592 Dynamic Modeling of Liquid Crystal-Based Metasurfaces and Its Application to Reducing Reconfigurability Times Author(s): Robert Guirado, UPM G. Perez-Palomino, UPM Marta Ferreras, UPM Eduardo Carrasco, UPM Manuel Caño-García, UPM Published in: IEEE Transactions on Antennas and Propagat, 2022, Page(s) 11847-11857, ISSN 0018-926X Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tap.2022.3209734 On the Use of Experimental Drop Size Distributions from Different Instruments in Millimeter-wave Propagation Studies Author(s): Jose Manuel Riera, Ana Benarroch, Pedro Garcia-del-Pino, Santiago Perez-Pena Published in: IEEE Antennas and Wireless Propagation Letters, 2021, Page(s) 1-1, ISSN 1536-1225 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/lawp.2021.3081376 Interference and Coverage Analysis for Terahertz Networks With Indoor Blockage Effects and Line-of-Sight Access Point Association Author(s): Yongzhi Wu, Joonas Kokkoniemi, Chong Han, Markku Juntti Published in: IEEE Transactions on Wireless Communications, Issue 20/3, 2021, Page(s) 1472-1486, ISSN 1536-1276 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/twc.2020.3033825 A Line-of-Sight Channel Model for the 100-450 Gigahertz Frequency Band Author(s): Joonas Kokkoniemi, Janne Lehtomäki, Markku Juntti Published in: EURASIP Journal on Wireless Communications Networking, 2021, ISSN 1687-1472 Publisher: Hindawi Publishing Corporation DOI: 10.1186/s13638-021-01974-8 Analysis and Optimization for RIS-Aided Multi-Pair Communications Relying on Statistical CSI Author(s): Zhangjie Peng, Tianshu Li, Cunhua Pan, Hong Ren, Wei Xu, Marco Di Renzo Published in: IEEE Transactions on Vehicular Technology, Issue 70/4, 2021, Page(s) 3897-3901, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2021.3062710 Smart Radio Environments Empowered by Reconfigurable Intelligent Surfaces: How It Works, State of Research, and The Road Ahead Author(s): Marco Di Renzo, Alessio Zappone, Merouane Debbah, Mohamed-Slim Alouini, Chau Yuen, Julien de Rosny, Sergei Tretyakov Published in: IEEE Journal on Selected Areas in Communications, Issue 38/11, 2020, Page(s) 2450-2525, ISSN 0733-8716 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/jsac.2020.3007211 Reconfigurable Intelligent Surface Optimal Placement in Millimeter-Wave Networks Author(s): Konstantinos Ntontin, Alexandros-Apostolos A. Boulogeorgos, Dimitrios G. Selimis, Fotis I. Lazarakis, Angeliki Alexiou, Symeon Chatzinotas Published in: IEEE Open Journal of the Communications Society, Issue 2, 2021, Page(s) 704-718, ISSN 2644-125X Publisher: IEEE DOI: 10.1109/ojcoms.2021.3068790 Performance Analysis of RIS-Aided Systems With Practical Phase Shift and Amplitude Response Author(s): Yan Zhang, Jiayi Zhang, Marco Di Renzo, Huahua Xiao, Bo Ai Published in: IEEE Transactions on Vehicular Technology, Issue 70/5, 2021, Page(s) 4501-4511, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2021.3069174 Reconfigurable Intelligent Surfaces vs. Relaying: Differences, Similarities, and Performance Comparison Author(s): Marco Di Renzo, Konstantinos Ntontin, Jian Song, Fadil H. Danufane, Xuewen Qian, Fotis Lazarakis, Julien De Rosny, Dinh-Thuy Phan-Huy, Osvaldo Simeone, Rui Zhang, Meroaune Debbah, Geoffroy Lerosey, Mathias Fink, Sergei Tretyakov, Shlomo Shamai Published in: IEEE Open Journal of the Communications Society, Issue 1, 2020, Page(s) 798-807, ISSN 2644-125X Publisher: IEEE DOI: 10.1109/ojcoms.2020.3002955 Reconfigurable Intelligent Surface-Based Wireless Communications: Antenna Design, Prototyping, and Experimental Results Author(s): Linglong Dai, Bichai Wang, Min Wang, Xue Yang, Jingbo Tan, Shuangkaisheng Bi, Shenheng Xu, Fan Yang, Zhi Chen, Marco Di Renzo, Chan-Byoung Chae, Lajos Hanzo Published in: IEEE Access, Issue 8, 2020, Page(s) 45913-45923, ISSN 2169-3536 Publisher: Institute of Electrical and Electronics Engineers Inc. DOI: 10.1109/access.2020.2977772 Performance Analysis of a Two–Tile Reconfigurable Intelligent Surface Assisted 2 × 2 MIMO System Author(s): Prathapasinghe Dharmawansa, Saman Atapattu, Marco Di Renzo Published in: IEEE Wireless Communications Letters, Issue 10/3, 2021, Page(s) 493-497, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.3035661 Analytical characterization of RIS-aided terahertz links in the presence of beam misalignment Author(s): Evangelos Papasotiriou, UPRC Sotiris Droulias, UPRC Angeliki Alexiou, UPRC Published in: IEEE Journal of Selected Topics in Signal Processing, 2023, Page(s) 1 - 11, ISSN 1932-4553 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/jstsp.2023.3286700 Stochastic Learning-Based Robust Beamforming Design for RIS-Aided Millimeter-Wave Systems in the Presence of Random Blockages Author(s): Gui Zhou, Cunhua Pan, Hong Ren, Kezhi Wang, Maged Elkashlan, Marco Di Renzo Published in: IEEE Transactions on Vehicular Technology, Issue 70/1, 2021, Page(s) 1057-1061, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2021.3049257 Ergodic Secrecy Rate of RIS-Assisted Communication Systems in the Presence of Discrete Phase Shifts and Multiple Eavesdroppers Author(s): Peng Xu, Gaojie Chen, Gaofeng Pan, Marco Di Renzo Published in: IEEE Wireless Communications Letters, Issue 10/3, 2021, Page(s) 629-633, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.3044178 Robust Beamforming Design for Intelligent Reflecting Surface Aided MISO Communication Systems Author(s): Gui Zhou, Cunhua Pan, Hong Ren, Kezhi Wang, Marco Di Renzo, Arumugam Nallanathan Published in: IEEE Wireless Communications Letters, Issue 9/10, 2020, Page(s) 1658-1662, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.3000490 Reconfigurable Intelligent Surfaces with Reflection Pattern Modulation: Beamforming Design and Performance Analysis Author(s): Shaoe Lin, Beixiong Zheng, George C. Alexandropoulos, Miaowen Wen, Marco Di Renzo, Fangjiong Chen Published in: IEEE Transactions on Wireless Communications, 2020, Page(s) 1-1, ISSN 1536-1276 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/twc.2020.3028198 Channel Modeling and Performance Analysis of Airplane-Satellite Terahertz Band Communications Author(s): Joonas Kokkoniemi, Josep M. Jornet, Vitaly Petrov, Yevgeni Koucheryavy, Markku Juntti Published in: IEEE Transactions on Vehicular Technology, Issue 70/3, 2021, Page(s) 2047-2061, ISSN 0018-9545 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tvt.2021.3058581 Two-Stage Channel Estimation for Hybrid RIS Assisted MIMO Systems Author(s): Rafaela Schroeder, Oulu University Jiguang He, Oulu University Markku Juntti, Oulu University Published in: IEEE Transactions on Communications, 2022, ISSN 2194-9905 Publisher: IEEE DOI: 10.1109/tcomm.2022.3176654 Characterization of Rain Attenuation in 80-200 GHz from Experimental Drop Size Distributions Author(s): José M. Riera, UPM Domingo Pimienta, UPM Pedro Garcia-del-Pino, UPM Published in: IEEE Transactions on Antennas and Propagation, 2023, Page(s) 1-9, ISSN 0018-926X Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tap.2023.3259682 Performance Analysis of Reconfigurable Intelligent Surface-Assisted Wireless Systems and Comparison With Relaying Author(s): Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou Published in: IEEE Access, Issue 8, 2020, Page(s) 94463-94483, ISSN 2169-3536 Publisher: Institute of Electrical and Electronics Engineers Inc. DOI: 10.1109/access.2020.2995435 Communication Models for Reconfigurable Intelligent Surfaces: From Surface Electromagnetics to Wireless Networks Optimization Author(s): Sergei Tretyakov, AALTO Marco Di Renzo, CNRS Published in: Proceedings of the IEEE, 2022, Page(s) 1164-1209, ISSN 0018-9219 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/jproc.2022.3195536 Reconfigurable Intelligent Surface-Assisted Non-Orthogonal Multiple Access Author(s): Gang Yang, Xinyue Xu, Ying-Chang Liang, Marco Di Renzo Published in: IEEE Transactions on Wireless Communications, Issue 20/5, 2021, Page(s) 3137-3151, ISSN 1536-1276 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/twc.2020.3047632 Reconfigurable Intelligent Surfaces-Assisted Communications With Discrete Phase Shifts: How Many Quantization Levels Are Required to Achieve Full Diversity? Author(s): Peng Xu, Gaojie Chen, Zheng Yang, Marco Di Renzo Published in: IEEE Wireless Communications Letters, Issue 10/2, 2021, Page(s) 358-362, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.3031084 On the Optimal Number of Reflecting Elements for Reconfigurable Intelligent Surfaces Author(s): Alessio Zappone, Marco Di Renzo, Xiaojun Xi, Merouane Debbah Published in: IEEE Wireless Communications Letters, Issue 10/3, 2021, Page(s) 464-468, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.3034686 Preprocessing and Assessment of Rain Drop Size Distributions Measured With a K-Band Doppler Radar and an Optical Disdrometer Author(s): Jose Manuel Riera, Ana Benarroch, Pedro Garcia-del-Pino, Santiago Perez-Pena Published in: IEEE Transactions on Instrumentation and Measurement, Issue 70, 2021, Page(s) 1-8, ISSN 0018-9456 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/tim.2020.3007909 Coverage Analysis of Reconfigurable Intelligent Surface Assisted THz Wireless Systems Author(s): Alexandros-Apostolos A. Boulogeorgos, Angeliki Alexiou Published in: IEEE Open Journal of Vehicular Technology, Issue 2, 2021, Page(s) 94-110, ISSN 2644-1330 Publisher: IEEE DOI: 10.1109/ojvt.2021.3051209 Beamforming Through Reconfigurable Intelligent Surfaces in Single-User MIMO Systems: SNR Distribution and Scaling Laws in the Presence of Channel Fading and Phase Noise Author(s): X. Qian, M. Di Renzo, J. Liu, A. Kammoun, M.-S. Alouini Published in: IEEE Wireless Communications Letters, Issue 10/1, 2021, Page(s) 77-81, ISSN 2162-2337 Publisher: IEEE Communications Society DOI: 10.1109/lwc.2020.3021058 Holographic MIMO Surfaces for 6G Wireless Networks: Opportunities, Challenges, and Trends Author(s): Chongwen Huang, Sha Hu, George C. Alexandropoulos, Alessio Zappone, Chau Yuen, Rui Zhang, Marco Di Renzo, Merouane Debbah Published in: IEEE Wireless Communications, Issue 27/5, 2020, Page(s) 118-125, ISSN 1536-1284 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/mwc.001.1900534 Achievable Rate Optimization for MIMO Systems With Reconfigurable Intelligent Surfaces Author(s): Nemanja Stefan Perovic, Le-Nam Tran, Marco Di Renzo, Mark F. Flanagan Published in: IEEE Transactions on Wireless Communications, Issue 20/6, 2021, Page(s) 3865-3882, ISSN 1536-1276 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/twc.2021.3054121 Wireless 2.0: Toward an Intelligent Radio Environment Empowered by Reconfigurable Meta-Surfaces and Artificial Intelligence Author(s): Haris Gacanin, Marco Di Renzo Published in: IEEE Vehicular Technology Magazine, Issue 15/4, 2020, Page(s) 74-82, ISSN 1556-6072 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/mvt.2020.3017927 mm-Wave Metasurface Unit Cells Achieving Millisecond Response Through Polymer Network Liquid Crystals Author(s): Robert Guirado, UPM G. Perez-Palomino, UPM Manuel Caño-García, UPM Morten A. Geday, UPM Eduardo Carrasco, UPM Published in: IEEE Access, 2022, ISSN 2169-3536 Publisher: Institute of Electrical and Electronics Engineers Inc. DOI: 10.1109/access.2022.3226601 Other (17) Artificial Intelligence for 5G and Beyond - Leveraging AI to offer novel D-band based services Author(s): Edwin Yaqub, Ralf Klinkenberg, Angeliki Alexiou, Halid Hrasnica Published in: Eurescom Message, 2020 Publisher: - Outdoor THz fading modeling by means of gaussian and gamma mixture distributions Author(s): Evangelos Papasotiriou, UPRC Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Published in: Scientific Reports, Issue 6385, 2023, Page(s) 13:6385 Publisher: Springer Nature DOI: 10.1038/s41598-023-33598-x Machine Learning with RapidMiner Author(s): Edwin Yaqub, Rachana Desai Published in: Online workshop, 2020 Publisher: RapidMiner A beam-tracking framework for THz networks Author(s): Giorgos Stratidakis, University of Piraeus Sotiris Droulias, University of Piraeus Angeliki Alexiou, University of Piraeus Published in: Wireless Communications, 2022 Publisher: Frontiers DOI: 10.3389/frcmn.2022.965336 On communication-theoretic models for programmable wireless environments enabled by reconfigurable intelligent surfaces (ARIADNE White Paper) Author(s): Halid Hrasnica, Eurescom Marco Di Renzo, CNRC Published in: 2021 Publisher: 5G-PPP Reradiation and Scattering From a Reconfigurable Intelligent Surface: A General Macroscopic Model Author(s): Sergei Tretyakov, Aalto Marco Di Renzo, CNRS Published in: IEEE Transactions on Antennas and Propagation, 2022, Page(s) 8691-8706 Publisher: arxiv DOI: 10.48550/arxiv.2107.12773 ARIADNE: A Synthesis of 3 Critical 6G Enablers Author(s): Fotis Lazarakis, NCSRD Angeliki Alexiou, NCSRD Published in: 2022 Publisher: YouTube Uncertainty of Millimeter-Wave Channel Sounder due to Integration of Frequency Converters Author(s): Mar Francis De Guzman, Katsuyuki Haneda Published in: 2021 17th International Symposium on Wireless Communication Systems, ISWCS 2021, 2021 Publisher: Aalto University DOI: 10.1109/iswcs49558.2021.9562208 Beyond 5G RIS mmWave Systems: Where Communication and Localization Meet Author(s): Jiguang He, UOULU Joonas Kokkoniemi, UOULU Markku Juntti, UOULU Published in: 2022 Publisher: ResearchGate DOI: 10.1109/access.2022.3186510 An experimentally validated fading model for THz wireless systems Author(s): Evangelos Papasotiriou, UPRC Alexandros-Apostolos Boulogeorgos, UPRC Katsuyuki Haneda, Aalto University Mar Francis De Guzman, Aalto University Angeliki Alexiou, UPRC Published in: 2021 Publisher: Springer Nature DOI: 10.1038/s41598-021-98065-x Leveraging Location Information for RIS-aided mmWave MIMO Communications Author(s): Jiguang He, Markku Juntti Published in: IEEE Wireless Communications Letters, Issue Volume: 10, Issue: 7, July 2021, 2021, Page(s) 1380 - 1384 Publisher: IEEE DOI: 10.1109/lwc.2021.3067474 A measurement data based investigation of fading modeling for indoor THz wireless systems Author(s): Evangelos Papasotiriou, UPRC Alexandros-Apostolos Boulogeorgos, UPRC Angeliki Alexiou, UPRC Published in: ITU Journal on Future and Evolving Technologies - Emerging trends and applications in future communication networks, Issue 3, 2022, Page(s) 443-458 Publisher: ITU DOI: 10.52953/spjd5569 Machine Learning: A Catalyst for THzWireless Networks Author(s): Edwin Yaqub, Marco De Renzo, Angeliki Alexiou, Rachana Desai, Ralf Klingberg Published in: Frontiers in Communications and Networks, 2021 Publisher: Frontiers DOI: 10.3389/frcmn.2021.704546 ARTIFICIAL INTELLIGENCE AIDED D BAND NETWORK FOR 5G LONG TERM EVOLUTION (White Paper) Author(s): Halid Hrasnica, Eurescom Published in: 2021 Publisher: ARIADNE Project Artificial Intelligence Empowered Multiple Access for Ultra Reliable and Low Latency THz Wireless Networks Author(s): Alexandros-Apostolos Boulogeorgos, UPRC Edwin Yaqub, RapidMiner Rachana Desai, RapidMiner Tachporn Sanguanpuak, Nokia Nikos Katzouris, NCSRD Fotis Lazarakis, NCSRD Angeliki Alexiou, UPRC Marco Di Renzo, CNRS Published in: 2022 Publisher: arXiv DOI: 10.48550/arxiv.2208.08039 Channel estimation for RIS-aided mmWave MIMO systems via atomic norm minimization Author(s): Jiguang He, Markku Juntti Published in: IEEE Transactions on Wireless Communications, Issue Vol.: 20, Issue 9, Sept 2021, 2021, Page(s) 5786-5797 Publisher: IEEE DOI: 10.1109/twc.2021.3070064 On the Joint Effect of Rain and Beam Misalignment in Terahertz Wireless Systems Author(s): Alexandros-Apostolos Boulogeorgos, UPRC José M. Riera, UPM Angeliki Alexiou, UPRC Published in: IEEE Access, Issue 10, 2022, Page(s) 58997-59012 Publisher: IEEE DOI: 10.1109/access.2022.3180173 Non-peer reviewed articles (1) On the Integration of Reconfigurable Intelligent Surfaces in Real-World Environments: A Convenient Approach for Estimation Reflection and Transmission Author(s): Sergei Tretyakov, AALTO Sergei Kosulnikov, AALTO Published in: IEEE Antennas and Propagation Magazine, 2022, Page(s) 85-95, ISSN 1045-9243 Publisher: Institute of Electrical and Electronics Engineers DOI: 10.1109/map.2022.3169396 Monographic books (2) Towards versatile access networks Author(s): Angeliki Alexiou, UPRC Katsuyuki Haneda, Aalto Published in: https://doi.org/10.1561/9781638282396.ch3, 2023, Page(s) 40-120 Publisher: NOW Publishers DOI: 10.1561/9781638282396.ch3 Fundamentals of Interference Modelling by Stochastic Geometry in THz Networks Author(s): Joonas Kokkoniemi, UOULU Janne Lehtomäki, UOULU Markku Juntti, UOULU Published in: Next Generation Wireless Terahertz Communication Networks, Issue 1st Edition, 2021, Page(s) CH 4 / 17 pages, ISBN 9781003001140 Publisher: CRC Press DOI: 10.1201/9781003001140-6 Searching for OpenAIRE data... 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