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Konstantinos Ntontin
Researcher at Intracom
Publications - 49
Citations - 1397
Konstantinos Ntontin is an academic researcher from Intracom. The author has contributed to research in topics: Computer science & Cellular network. The author has an hindex of 12, co-authored 39 publications receiving 872 citations. Previous affiliations of Konstantinos Ntontin include University of Barcelona & University of Luxembourg.
Papers
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Journal ArticleDOI
Reconfigurable Intelligent Surfaces vs. Relaying: Differences, Similarities, and Performance Comparison
Marco Di Renzo,Konstantinos Ntontin,Jian Song,Fadil Habibi Danufane,Xuewen Qian,Fotis Lazarakis,Julien de Rosny,Dinh-Thuy Phan-Huy,Osvaldo Simeone,Rui Zhang,Merouane Debbah,Geoffroy Lerosey,Mathias Fink,Sergei A. Tretyakov,Shlomo Shamai +14 more
TL;DR: In this article, the authors discuss the potential applications of RISs in wireless networks that operate at high-frequency bands, eg, millimeter wave (30-100 GHz) and sub-millimeter-wave (greater than 100 GHz) frequencies when used in a manner similar to relays.
Posted Content
Reconfigurable Intelligent Surfaces vs. Relaying: Differences, Similarities, and Performance Comparison
M. Di Renzo,Konstantinos Ntontin,Jian Song,Fadil Habibi Danufane,Xuewen Qian,Fotis Lazarakis,J. de Rosny,Dinh-Thuy Phan-Huy,Osvaldo Simeone,Rui Zhang,Merouane Debbah,Geoffroy Lerosey,Mathias Fink,Sergei A. Tretyakov,Shlomo Shamai +14 more
TL;DR: The present paper elaborates on the key differences and similarities between RISs that are configured to operate as anomalous reflectors and relays and illustrates numerical results that highlight the spectral efficiency gains of RISs when their size is sufficiently large as compared with the wavelength of the radio waves.
Journal ArticleDOI
D2D-Aware Device Caching in mmWave-Cellular Networks
Nikolaos Giatsoglou,Konstantinos Ntontin,Elli Kartsakli,Angelos Antonopoulos,Christos Verikoukis +4 more
TL;DR: A novel policy for device caching that facilitates popular content exchange through high-rate device-to-device (D2D) millimeter-wave (mmWave) communication achieves higher offloading and lower content-retrieval delays than existing state-of-the-art approaches.
Journal ArticleDOI
A Low-Complexity Method for Antenna Selection in Spatial Modulation Systems
TL;DR: The benefits of the proposed selection scheme, as the number of receive antennas increases, are further substantiated by comparing its relative energy gain over the TAS method for a target uncoded Symbol Error Rate (SER).
Journal ArticleDOI
Towards a Scaleable 5G Fronthaul: Analog Radio-over-Fiber and Space Division Multiplexing
Simon Rommel,Delphin Dodane,Evangelos Grivas,Bruno Cimoli,Jérôme Bourderionnet,Gilles Feugnet,Alvaro Morales,Evangelos Pikasis,Chris G. H. Roeloffzen,Paul van Dijk,Michail Katsikis,Konstantinos Ntontin,Dimitrios Kritharidis,Izabela Spaleniak,Paul Mitchell,Mykhaylo Dubov,Juliana Barros Carvalho,Idelfonso Tafur Monroy +17 more
TL;DR: The use of analog radio-over-fiber (ARoF) is proposed and demonstrated as a viable alternative which, combined with space division multiplexing in the optical distribution network as well as photonic integration of the required transceivers, shows a path to a scaleable fronthaul solution for 5G.