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Recurrent Transformer-Based Near- and Far-Field THz Wideband Channel Estimation for UM-MIMO
Dmitry Artemasov, Alexander Shmatok, Kirill Andreev +3
The integration of terahertz communications and ultra-massive multiple-input multiple-output (UM-MIMO) systems in 6G networks is motivated by their ability to enable unprecedented…
Programmable Unitary RF Networks for Narrowband Hybrid Beamforming
Nikola Zlatanov, Damir Salakhov
Conventional hybrid beamforming architectures are compared with one another and with the fully-digital architecture under the same radiated antenna power. However, the physically r…
A Narrowband Fully-Analog Multi-Antenna Transmitter
Nikola Zlatanov
This paper proposes a narrowband fully-analog -antenna transmitter that emulates the functionality of a narrowband fully-digital -antenna transmitter. Specifically, in symbol…
HoloBeam: Learning Optimal Beamforming in Far-Field Holographic Metasurface Transceivers
Debamita Ghosh, Manjesh Kumar Hanawal, Nikola Zlatanova
Holographic Metasurface Transceivers (HMTs) are emerging as cost-effective substitutes to large antenna arrays for beamforming in Millimeter and TeraHertz wave communication. Howev…