Search Results - "Sandalidis, Harilaos G."

Underwater Optical Wireless Networks: A k-Connectivity Analysis by Vavoulas, Alexander, Sandalidis, Harilaos G., Varoutas, Dimitris

“…In this paper, optical wireless has been addressed as a promising technology to provide high-bandwidth services for underwater communications. However, the…”
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Weather effects on FSO network connectivity by Vavoulas, A., Sandalidis, H. G., Varoutas, D.

“…The use of relays is one of the most promising methods for mitigating impairments of the performance of free-space optical (FSO) systems and extending their…”
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An assessment of a unmanned aerial vehicle‐based broadcast scenario assuming random terrestrial user locations by Vaiopoulos, Nicholas, Vavoulas, Alexander, Sandalidis, Harilaos G.

“…With the advent of the new decade, unmanned aerial vehicles (UAVs) will increasingly play an active role mainly as broadband transmission relays for broadcast…”
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On the UOWC Performance Under Location Uncertainty by Vaiopoulos, Nicholas, Vavoulas, Alexander, Nistazakis, Hector E., Sandalidis, Harilaos G., Kakarountas, Athanasios

“…More often than not, currents due to gravity, wind friction, and heterogeneous water density cause frequent drifts of the end-users to random locations…”
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Α dual‐hop equivalent structure of a generalised multi‐hop free‐space optics network by Androutsos, Nikolaos A., Nistazakis, Hector E., Sandalidis, Harilaos G., Leitgeb, Erich, Tombras, George S.

“…The performance of free‐space optics links strongly depends on scintillation effects caused by the atmospheric turbulence appearance. A widely adopted way to…”
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A Low Complexity Indoor Visible Light Positioning Method by Anastou, Aristeidis-Chrysovalantis, Delibasis, Konstantinos K., Boulogeorgos, Alexandros-Apostolos A., Sandalidis, Harilaos G., Vavoulas, Alexander, Tasoulis, Sotiris K.

“…The continuous positioning of a mobile user equipment (MU) in a prompt way is a fundamental requirement in several indoor applications related to ubiquitous…”
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CDMA RoFSO Links With Nonzero Boresight Pointing Errors Over M Turbulence Channels by Ninos, Michalis P., Nistazakis, Hector E., Sandalidis, Harilaos G., Tombras, George S.

“…Radio-on-Free-Space Optical systems constitute a very attractive option for interconnecting central base stations with remote antenna units. Nonetheless, the…”
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LaUV: A Physics-Based UV Light Simulator for Disinfection and Communication Applications by Baltadourou, Maria S., Delibasis, Konstantinos K., Tsigaridas, Georgios N., Sandalidis, Harilaos G., Karagiannidis, George K.

“…The sterilization properties of the C-band of the ultraviolet (UV) light have been well-known for many years; however, their application has become more vital…”
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Performance of SIMO FSO Links over Mixture Composite Irradiance Channels by Androutsos, Nikolaos A., Nistazakis, Hector E., Stassinakis, Argyris N., Sandalidis, Harilaos G., Tombras, George S.

“…Free space optics (FSO) technology has demonstrated an increasingly scientific and commercial interest over the past few years. However, due to signal…”
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Impact of a Randomly Placed Terminal on LiFi Performance by Vaiopoulos, Nicholas, Vavoulas, Alexander, Sandalidis, Harilaos G.

“…The ambitious goal of light-fidelity (LiFi) technology to provide seamless user mobility in indoor environments requires strong link connections to confront…”
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DF Relayed Subcarrier FSO Links over Malaga Turbulence Channels with Phase Noise and Non-Zero Boresight Pointing Errors by Varotsos, George, Nistazakis, Hector, Gappmair, Wilfried, Sandalidis, Harilaos, Tombras, George

“…Additionally, when focusing on higher-order PSK modulation formats, the ASEP increases. [...]assuming that any additional hop further increases the end-to-end…”
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Exploring the Random Location Problem Inside a Truncated Conic Shape: Application in UAV Communications by Vaiopoulos, Nicholas, Vavoulas, Alexander, Sandalidis, Harilaos G.

“…More often than not, transmitters (Txs) in wireless networks operate using directional radiation patterns where the main radiation lobe creates a…”
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Performance of an Underwater Optical Wireless Link With a Randomly Placed or Moving Receiver by Christopoulou, Chrysovalantou, Sandalidis, Harilaos G., Vaiopoulos, Nicholas

“…The current work investigates the outage probability of a vertical diffused line-of-sight underwater optical wireless communication link where a fixed…”
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A Survey on Ultraviolet C-Band (UV-C) Communications by Vavoulas, Alexander, Sandalidis, Harilaos G., Chatzidiamantis, Nestor D., Xu, Zhengyuan, Karagiannidis, George K.

“…Recent advances in semiconductor laser and light emitting diode devices, able to efficiently operate in the solar blind regime, have brought the oblivious…”
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IEEE Access Special Section Editorial: Optical Wireless Technologies for 5G Communications and Beyond by Chaaban, Anas, Chi, Nan, Elgala, Hany, Rezki, Zouheir, Safari, Majid, Sandalidis, Harilaos G., Imran, Muhammad Ali

“…Wide bandwidth and dense spatial reuse are of extreme importance for future wireless communication networks, including 5G and beyond. In particular, these…”
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Optimal Trade-Off Between Depth and Coverage for a Vertical UOWC Link by Christopoulou, Chrysovalantou, Sandalidis, Harilaos G., Vavoulas, Alexander

“…The optimal trade-off between coverage and depth for a vertical underwater optical wireless communication (UOWC) link is thoroughly investigated in this…”
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Coverage Aspects of Indoor VLC Networks by Vavoulas, Alexander, Sandalidis, Harilaos G., Tsiftsis, Theodoros A., Vaiopoulos, Nicholas

“…Achieving both illumination and data reception with probability almost one inside a specific indoor environment is not an effortless task in visible light…”
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Optical Wireless Communications With Heterodyne Detection Over Turbulence Channels With Pointing Errors by Sandalidis, H.G., Tsiftsis, T.A., Karagiannidis, G.K.

“…We study the error performance of an heterodyne differential phase-shift keying (DPSK) optical wireless (OW) communication system operating under various…”
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Optical wireless links with spatial diversity over strong atmospheric turbulence channels by Tsiftsis, T.A., Sandalidis, H.G., Karagiannidis, G.K., Uysal, M.

“…Optical wireless, also known as free-space optics, has received much attention in recent years as a cost-effective, license-free and wide-bandwidth access…”
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Coded Free-Space Optical Links over Strong Turbulence and Misalignment Fading Channels by Sandalidis, H G

“…The performance of optical wireless systems deteriorates to a large extent from the presence of turbulence and pointing error effects. To meet the typical bit…”
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