Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Hector E. Nistazakis"'
Autor:
Nicholas Vaiopoulos, Alexander Vavoulas, Hector E. Nistazakis, Harilaos G. Sandalidis, Athanasios Kakarountas
Publikováno v:
IEEE Access, Vol 11, Pp 38783-38794 (2023)
More often than not, currents due to gravity, wind friction, and heterogeneous water density cause frequent drifts of the end-users to random locations creating transmission problems in an underwater optical wireless communication (UOWC) network. The
Externí odkaz:
https://doaj.org/article/a7eb605b4e7d4ac99d44d67d5f8250e9
Publikováno v:
Energies, Vol 16, Iss 18, p 6485 (2023)
In recent years, the tremendous increase in data traffic carried by wireless communication networks has generated the urgent need for establishing more energy-efficient wireless communication systems. Recent advances in semiconductor and light device
Externí odkaz:
https://doaj.org/article/5bbba1334d084a3097263d2f25a14918
Autor:
Nikoleta Vitsi, Argyris N. Stassinakis, Nikolaos A. Androutsos, George D. Roumelas, George K. Varotsos, Konstantinos Aidinis, Hector E. Nistazakis
Publikováno v:
Computation, Vol 11, Iss 8, p 161 (2023)
Visible light positioning systems (VLP) have attracted significant commercial and research interest because of the many advantages they possess over other applications such as radio frequency (RF) positioning systems. In this work, an experimental co
Externí odkaz:
https://doaj.org/article/d526e6dfc2054d6297e9ce0b2ae9a0cc
Publikováno v:
Photonics, Vol 10, Iss 8, p 930 (2023)
Photon counting detector arrays are commonly used for deep space optical communication receivers operating on the principle of intensity modulation/direct detection (IM/DD). In scenarios where beam parameters can vary at the receiver due to scatterin
Externí odkaz:
https://doaj.org/article/233a2b80ac32406a9427f3205e766dd8
Autor:
Antonios Lionis, Konstantinos Peppas, Hector E. Nistazakis, Andreas Tsigopoulos, Keith Cohn, Kyle R. Drexler
Publikováno v:
Quantum Beam Science, Vol 7, Iss 2, p 18 (2023)
The Hellenic Naval Academy (HNA) reports the latest results from a medium-range, near-maritime, free-space laser-communications-testing facility, between the lighthouse of Psitalia Island and the academy’s laboratory building. The FSO link is estab
Externí odkaz:
https://doaj.org/article/a5a091ecc7854c2a936554003b44496d
Autor:
George K. Varotsos, Hector E. Nistazakis, Konstantinos Aidinis, Fadi Jaber, Mohd Nasor, Kanhira Kadavath Mujeeb Rahman
Publikováno v:
Telecom, Vol 2, Iss 2, Pp 167-180 (2021)
Recent developments in both optical wireless communication (OWC) systems and implanted medical devices (IMDs) have introduced transdermal optical wireless (TOW) technology as a viable candidate for extremely high-speed in-body to out-of-body wireless
Externí odkaz:
https://doaj.org/article/26ddfeb72e7e4b3e9fa304a836bb3b84
Autor:
Argyris N. Stassinakis, George A. Papavgeris, Hector E. Nistazakis, Andreas D. Tsigopoulos, Nikolaos A. Androutsos, George S. Tombras
Publikováno v:
Telecom, Vol 2, Iss 1, Pp 93-107 (2021)
Free space optical (FSO) systems have become a reliable solution for modern communications networks, due to the high performance, availability, reliability and security they can provide. However, their characteristics depend strongly on the condition
Externí odkaz:
https://doaj.org/article/f9d14e24ec944c7e958408c017a2765e
Autor:
Nikolaos A. Androutsos, Hector E. Nistazakis, Harilaos G. Sandalidis, Erich Leitgeb, George S. Tombras
Publikováno v:
IET Communications, Vol 15, Iss 5, Pp 730-735 (2021)
Abstract The performance of free‐space optics links strongly depends on scintillation effects caused by the atmospheric turbulence appearance. A widely adopted way to counterbalance the expected deterioration due to scintillation is to employ coope
Externí odkaz:
https://doaj.org/article/7f204546f11e4c74a312310d0ab79661
Publikováno v:
Photonics, Vol 9, Iss 10, p 671 (2022)
In recent years, the THz frequency band (0.3 THz–10 THz) has attracted an increasing research interest for the realization of emerging high-speed wireless communication links. Nevertheless, the propagation of THz signals through the atmospheric cha
Externí odkaz:
https://doaj.org/article/8a614d86c37e4702bcc5924100e3fe3b
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 5, Pp 1-12 (2018)
Radio-on-Free-Space Optical systems constitute a very attractive option for interconnecting central base stations with remote antenna units. Nonetheless, the optical signal propagation through the atmosphere is tremendously affected by turbulence- an
Externí odkaz:
https://doaj.org/article/ca4b746a90a34519b44a977b39fdc2ec