Author details
George Avdikos
Also published under: G. K. Avdikos, Georgios Avdikos, Georgios K. Avdikos, G. Avdikos
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Business Case Evaluation of Cooperative, Connected and Automated Mobility Service Provision in cross-border settings[INVITED PAPER – Project 5G-CARMEN]
Asma Chiha;Thibault Degrande;Sofie Verbrugge;Didier Colle;George Avdikos;Walter Aigner;Benoit Denis;David Garcia-Roger
2022 IEEE Future Networks World Forum (FNWF)
Year: 2022 | Conference Paper |
In this paper, we present a techno-economic analysis of providing a Cooperative, Connected and Automated Mobility (CCAM) use case, namely Cooperative Lane Merging (CLM), in a cross-border environment. Multiple network deployment scenarios are proposed to provide Vehicle to Infrastructure (V2I) connectivity with respect to PC5 Mode 4 – enabled RSUs. Total cost of Ownership (TCO) model together with...Show More
Business Case Evaluation of Cooperative, Connected and Automated Mobility Service Provision in cross-border settings[INVITED PAPER – Project 5G-CARMEN]
Asma Chiha;Thibault Degrande;Sofie Verbrugge;Didier Colle;George Avdikos;Walter Aigner;Benoit Denis;David Garcia-Roger
Year: 2022 | Conference Paper |
The NetApps Certification Environment for 5G and beyond Vertical Ecosystems: The EVOLVED-5G Approach
Foteini Setaki;Ioanna Mesogiti;Eleni Theodoropoulou;George Lyberopoulos;Harilaos Koumaras;David Artunedo Guillen;Javier Garcia Rodrigo;George Avdikos;Ioannis Margaritis;Emmanouil Kafetzakis;Yiannis Karadimas;Dimitrios Tsolkas
Certification is the means to promote excellence through adherence to best practices, and ensure the appropriate security and transparency, in alignment to regulations set by the market and (various levels of) administrations. In the mobile telecommunications domain, certification for the radio equipment and user terminals has been a fundamental practice. With the 3GPP5G specifications, a novel co...Show More
The NetApps Certification Environment for 5G and beyond Vertical Ecosystems: The EVOLVED-5G Approach
Foteini Setaki;Ioanna Mesogiti;Eleni Theodoropoulou;George Lyberopoulos;Harilaos Koumaras;David Artunedo Guillen;Javier Garcia Rodrigo;George Avdikos;Ioannis Margaritis;Emmanouil Kafetzakis;Yiannis Karadimas;Dimitrios Tsolkas
Year: 2022 | Conference Paper |
Actively Q-Switched Multisegmented Nd:YAG Laser Pumped at 885 nm for Remote Sensing
Christos Evangelatos;Georgios Tsaknakis;Paraskevas Bakopoulos;Dimitris Papadopoulos;Georgios Avdikos;Alexandros Papayannis;Georgios Tzeremes
An end-pumped actively Q-switched Nd:YAG laser using a multisegmented crystal rod as laser active material, directly pumped to the upper laser level by an 885-nm emitting diode is demonstrated. The Nd:YAG crystal was pumped both in CW and quasi-CW mode. The maximum energy per pulse obtained was 2.57 mJ at 1 kHz, with an overall efficiency of \sim 7.5 %. The pulse duration was 22-ns full-width...Show More
Overview of the application of High Altitude Platform (HAP) systems in future telecommunication networks
2008 10th International Workshop on Signal Processing for Space Communications
Year: 2008 | Conference Paper |
This paper presents an overview of the existing high altitude platform (HAP) systems, and analyzes their application on different network types, such as two way (hybrid) communication networks, intelligent transportation systems, environmental monitoring, etc. Since HAPs have specific inherent advantages, their use can be widespread in future applications and networks. This paper focuses on the te...Show More
Satellite-terrestrial broadcasting/multicasting systems: Channel modelling and scalable video coding approach
2008 10th International Workshop on Signal Processing for Space Communications
Year: 2008 | Conference Paper |
This paper investigates the use of multiple-layered video streaming over satellite communication channels by means of Scalable Video Coding (SVC). Simulations based on Gilbert-Elliot 2-state channel model are used to compare single-layered MPEG4-AVC/H.264 video with two-layered scalable video based on H.264. Resulting PSNR results show more superior aggregate video quality in the 2-layered case.Show More
Preconditioning techniques for the method of auxiliary sources applied to geometries characterized as perturbations of a circle
Angelos T. Vouldis;Georgios K. Avdikos;Hristos T. Anastassiu
2006 First European Conference on Antennas and Propagation
Year: 2006 | Conference Paper |
Two versions of a preconditioning procedure are described for a class of two-dimensional scattering problems, when the latter are solved via the Method of Auxiliary Sources (MAS). The method is useful for the case of shrinking auxiliary surfaces, i.e. when the linear system may become ill-conditioned. If the cross sectional boundary can be regarded as a deformation of a circle, the MAS matrix is s...Show More
Efficient SIE/VIE scattering analysis of ferroelectric inhomogeneous materials with high permittivity for microwave applications
Georgios K. Avdikos;Theodore Zervos;Hristos T. Anastassiu;Nikolaos K. Uzunoglu
2006 First European Conference on Antennas and Propagation
Year: 2006 | Conference Paper |
Ferroelectric materials have been gaining much interest over the last decades due to the unique operational characteristics they demonstrate, when a dc electric field is applied. This paper investigates the scattering analysis of electromagnetic waves from materials with high permittivity that follows a linear spatial variation along one axis. The surface integral equation (SIE) and volume integra...Show More
Computational cost estimations and comparisons for three methods of applied electromagnetics (MoM, MAS, MMAS)
The computational costs of three numerical techniques used in electromagnetics, namely the moment method (MoM), the method of auxiliary sources (MAS), and its modified version (MMAS), are estimated for various calculation schemes and configurations. Both surface and volumetric problems are considered. The number of multiplications required for the system-matrix fill is calculated and added to the ...Show More
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