Dr. Evangelos Vlachos
Dr. Evangelos Vlachos
Home
Experience
Projects
Publications
News
UAVs
A Hardware Architecture For Reconfigurable Intelligent Surfaces with Minimal Active Elements for Explicit Channel Estimation
Intelligent surfaces comprising of cost effective, nearly pas- sive, and reconfigurable unit elements are lately gaining in- creasing …
Alexandropoulos, G. C.
,
Vlachos, E.
DOI
Joint Localization and Channel Estimation for UAV-Assisted Millimeter Wave Communications
In this paper, we consider millimeter Wave (mmWave) communications between an Unmanned Aerial Ve- hicle (UA V) and a base station. By …
Alexandropoulos, G.
,
Vlachos, E.
,
Smida, B.
DOI
Radio-frequency chain selection for energy and spectral efficiency maximization in hybrid beamforming under hardware imperfections
Vlachos, E.
,
Thompson, J.
,
Kaushik, A.
,
Masouros, C.
DOI
Wideband Channel Tracking for Millimeter Wave Massive Mimo Systems with Hybrid Beamforming Reception
Millimeter Wave (mmWave) massive Multiple Input Multi- ple Output (MIMO) channel tracking is a challenging task with Hybrid analog and …
Alexandropoulos, G. C.
,
Vlachos, E.
,
Thompson, J.
DOI
Dynamic RF Chain Selection for Energy Efficient and Low Complexity Hybrid Beamforming in Millimeter Wave MIMO Systems
This paper proposes a novel architecture with a framework that dynamically activates the optimal number of radio frequency (RF) chains …
Kaushik, A.
,
Thompson, J.
,
Vlachos, E.
,
Tsinos, C.
,
Chatzinotas, S.
DOI
Energy Efficiency Maximization of Millimeter Wave Hybrid MIMO Systems with Low Resolution DACs
This paper proposes an energy efficient millimeter wave (mmW ave) hybrid multiple-input multiple-output (MIMO) beamformer with low …
Kaushik, A.
,
Vlachos, E.
,
Thompson, J.
DOI
Energy Efficient ADC Bit Allocation and Hybrid Combining for Millimeter Wave MIMO Systems
Low resolution analog-to-digital converters (ADCs) can be employed to improve the energy efficiency (EE) of a wireless receiver since …
Kaushik, A.
,
Tsinos, C.
,
Vlachos, E.
,
Thompson, J.
DOI
Energy Efficient Transmission of 3D Meshes Over MMWave-Based Massive MIMO Systems
Many mixed reality applications are b ased on the real-time compression and streaming of three-dimensional (3D) mod els. Thus, they …
Lalos, A.
,
Arvanitis, G.
,
Vlachos, E.
,
Moustakas, K.
DOI
Hybrid Beamforming with Random Analog Sampling for Wideband Channel Estimation in Millimeter Wave Massive MIMO Systems
Hybrid analog and digital BeamForming (HBF) transceiver architectures realizing directive communication over large bandwidths in …
Vlachos, E.
,
Alexandropoulos, G. C.
,
Thompson, J.
DOI
Robust and Efficient Privacy Preservation in Industrial IoT via correlation completion and tracking
The Industrial IoT (IIoT) is a key element of Industry 4.0, bringing together modern sensor technology, fog - cloud computing …
Lalos, A. S.
,
Vlachos, E.
,
Berberidis, K.
,
Fournaris, A.
,
Koulamas, C.
DOI
«
»
Cite
×