Dr. Evangelos Vlachos
Tenure-track Researcher · ATHENA RC
Dr. Evangelos Vlachos
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6G
Submitted: AERIAL-EDGE — Twinning for Aerial Radio Measurement and Edge Data Intelligence
We submitted AERIAL-EDGE, a Horizon Europe Twinning proposal coordinated by ATHENA RC, targeting permanent aerial radio measurement and edge data intelligence infrastructure for Mediterranean drone corridors.
Apr 9, 2026
1 min read
News
Geometry-Aware Regularization for Deep-Unfolded MIMO-OTFS Detection
We study symbol detection in Multiple-Input Multiple-Output Orthogonal Time Frequency Space (MIMO-OTFS) systems over geometry-based, …
Multi-Functional Diversity via Flexible Spatial Partitioning for Massive MIMO ISAC
In massive MIMO Integrated Sensing and Communications (ISAC), conventional contiguous sub-array partitioning limits spatial degrees of …
Semantically-Informed Predictive Control for Autonomous UAV Connectivity in Urban Environments
Millimeter-wave (mmWave) frequencies offer the multi-gigabit throughput required by next-generation UAV networks, but their directional …
3rd EUSOME Study Visit — Belgrade, Serbia
I attended the 3rd EUSOME consortium study visit at the Institute Mihajlo Pupin in Belgrade, Serbia, bringing together partners for knowledge exchange on U-Space technologies and project coordination.
Feb 3, 2026
1 min read
News
Workshop Proposal Submitted to EuCNC & 6G Summit 2026
We submitted a proposal to host a half-day workshop at EuCNC & 6G Summit 2026 (Malaga, Spain, June 2–5) on Integrated Sensing and Communications for the 6G Sky, bridging technology and regulation in U-Space.
Jan 22, 2026
1 min read
News
Receiving RISs: Enabling Channel Estimation and Autonomous Configuration
This work addresses semi-passive Reconfigurable Intelligent Surface (RIS) architectures enhanced with radio-frequency (RF) chains for …
DOI
Biconvex Optimization for Time-Domain Channel Estimation Under Dual-Wideband Fading Conditions
Single-carrier (SC) waveforms offer significant ad- vantages in high-frequency communications due to their lower peak-to-average power …
PDF
DOI
Flexible Hybrid Precoding for Integrated Sensing and Communications
Key Contributions
Presents flexible hybrid precoding architectures for Integrated Sensing and Communications (ISAC), enabling simultaneous radar sensing and multi-user data transmission from a shared antenna array.
Develops optimization frameworks that balance sensing beampattern design with communication spectral efficiency under practical hardware constraints including finite-resolution phase shifters.
Provides a comprehensive treatment of ISAC precoding in a book chapter context, covering design principles, algorithmic solutions, and trade-off analysis for next-generation wireless systems.
Improving Wideband Massive MIMO Channel Estimation With UAV State-Space Information
In this paper, we focus on the estimation of massive Multiple-Input Multiple-Output (mMIMO) channels in high-frequency point-to-point …
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DOI
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