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cs.IT2025
A New Class of Analog Precoding for Multi-Antenna Multi-User Communications over High-Frequency Bands
W. Zhu, H. D. Tuan, E. Dutkiewicz +2
A network relying on a large antenna-array-aided base station is designed for delivering multiple information streams to multi-antenna users over high-frequency bands such as the m…
cs.IT2025
Holographic Multi-User Multi-Stream Beamforming Maintaining Rate-Fairness
W. Zhu, H. D. Tuan, E. Dutkiewicz +2
We present the first investigation into the transmission of multi-stream information from a base station equipped with reconfigurable holographic surfaces (RHS) to multiple users w…
cs.IT2024
Securing MIMO Wiretap Channel with Learning-Based Friendly Jamming under Imperfect CSI
Bui Minh Tuan, Diep N. Nguyen, Nguyen Linh Trung +5
Wireless communications are particularly vulnerable to eavesdropping attacks due to their broadcast nature. To effectively deal with eavesdroppers, existing security techniques usu…