Dr. Evangelos Vlachos
Tenure-track Researcher · ATHENA RC
Dr. Evangelos Vlachos
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Channel Estimation
Channel Estimation for mmWave and THz Massive MIMO
Our research on channel estimation for mmWave and THz massive MIMO: hybrid beamforming with low-resolution ADCs, UAV and vehicle links, THz XL-MIMO, RIS and quantum computing.
Paper Accepted at IEEE ISAC 2026
Our paper on biconvex ADMM for sensing-aided XL-MIMO channel estimation at THz frequencies has been accepted at the 2026 IEEE 1st Annual Integrated Sensing and Communication Conference (ISAC 2026).
Sep 12, 2026
1 min read
Paper
Biconvex ADMM for Sensing-Aided XL-MIMO Channel Estimation at the THz Frequency Band
Terahertz (THz) extremely large-array MIMO is a cornerstone technology for 6G integrated sensing and communication (ISAC), but its …
Paper Submitted to IEEE ISAC 2026
We submitted a conference paper on sensing-aided THz XL-MIMO channel estimation via biconvex ADMM to the 2026 IEEE International Symposium on Joint Communications and Sensing (ISAC 2026).
Jun 1, 2026
1 min read
Paper
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 …
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