Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Lazarakis Fotis"'
Publikováno v:
IEEE Communications Letters, 2021, Volume 25 Issue 7, Pages 2191-2195
In this paper, we study the performance of wireless communications empowered by Reconfigurable Intelligent Surface (RISs) over Nakagami-m fading channels. We consider two phase configuration designs for the RIS, one random and another one based on co
Externí odkaz:
http://arxiv.org/abs/2309.11893
Autor:
Selimis, Dimitrios G., De Guzman, Mar Francis, Lazarakis, Fotis I., Manganaris, Kyriakos N., Peppas, Kostas P., Haneda, Katsuyuki
In this paper, we present new measurement results to model large-scale path loss, angular spread and channel sparsity at the sub-THz (141-145 GHz) band, for both indoor and outdoor scenarios. Extensive measurement campaigns have been carried out, tak
Externí odkaz:
http://arxiv.org/abs/2209.11324
Autor:
Boulogeorgos, Alexandros-Apostolos A., Yaqub, Edwin, Desai, Rachana, Sanguanpuak, Tachporn, Katzouris, Nikos, Lazarakis, Fotis, Alexiou, Angeliki, Di Renzo, Marco
Terahertz (THz) wireless networks are expected to catalyze the beyond fifth generation (B5G) era. However, due to the directional nature and the line-of-sight demand of THz links, as well as the ultra-dense deployment of THz networks, a number of cha
Externí odkaz:
http://arxiv.org/abs/2208.08039
Autor:
Selimis, Dimitrios G., De Guzman, Mar Francis, Manganaris, Kyriakos N., Lazarakis, Fotis I., Haneda, Katsuyuki, Peppas, Kostas P.
Publikováno v:
In Physical Communication October 2024 66
Autor:
Ntontin, Konstantinos, Boulogeorgos, Alexandros-Apostolos A., Björnson, Emil, Selimis, Dimitrios, Martins, Wallace Alves, Kisseleff, Steven, Abadal, Sergi, Alarcón, Eduard, Papazafeiropoulos, Anastasios, Lazarakis, Fotis, Alexiou, Angeliki, Chatzinotas, Symeon
In this work, we examine the potential of autonomous operation of a reconfigurable intelligent surface (RIS) using wireless energy harvesting from information signals. To this end, we first identify the main RIS power-consuming components and introdu
Externí odkaz:
http://arxiv.org/abs/2108.07953
Autor:
Ntontin, Konstantinos, Boulogeorgos, Alexandros-Apostolos A., Björnson, Emil, Selimis, Dimitrios, Martins, Wallace Alves, Abadal, Sergi, Alexiou, Angeliki, Lazarakis, Fotis, Kisseleff, Steven, Chatzinotas, Symeon
In this paper, we examine the potential for a reconfigurable intelligent surface (RIS) to be powered by energy harvested from information signals. This feature might be key to reap the benefits of RIS technology's lower power consumption compared to
Externí odkaz:
http://arxiv.org/abs/2105.00163
Autor:
Ntontin, Konstantinos, Boulogeorgos, Alexandros-Apostolos A., Selimis, Dimitrios, Lazarakis, Fotis, Alexiou, Angeliki, Chatzinotas, Symeon
Publikováno v:
IEEE Open Journal of the Communications Society, March, 2021
This work discusses the optimal reconfigurable intelligent surface placement in highly-directional millimeter wave links. In particular, we present a novel system model that takes into account the relationship between the transmission beam footprint
Externí odkaz:
http://arxiv.org/abs/2011.09949
Publikováno v:
In Physical Communication December 2023 61
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2005, Iss 11, p 170786 (2005)
A reconfigurable space-time coding technique is investigated, for a high-speed downlink packet access multiple-antenna network, which combats the effects of antenna correlation. Reconfigurability is achieved at the link level by introducing a linear
Externí odkaz:
https://doaj.org/article/15cac443a9b247718b0da629122786af
This letter presents a comprehensive framework analyzing the asymptotic error performance of a multiple-input-multiple-output (MIMO) wireless system employing spatial modulation (SM) with maximum likelihood detection and perfect channel state informa
Externí odkaz:
http://arxiv.org/abs/1405.7851