27 citations · 88 across the 10 of their papers we have counts for
4 papers · 1 filter
Channel Estimation and Training Design for Active RIS Aided Wireless Communications
Hao Chen, Nanxi Li, Ruizhe Long +1
Active reconfigurable intelligent surface (ARIS) is a newly emerging RIS technique that leverages radio frequency (RF) reflection amplifiers to empower phase-configurable reflectio…
Pilot Design and Signal Detection for Symbiotic Radio over OFDM Carriers
Hao Chen, Qianqian Zhang, Ruizhe Long +2
Symbiotic radio (SR) is a promising solution to achieve high spectrum- and energy-efficiency due to its spectrum sharing and low-power consumption properties, in which the secondar…
Modulation Design and Optimization for RIS-Assisted Symbiotic Radios
Hu Zhou, Bowen Cai, Qianqian Zhang +3
In reconfigurable intelligent surface (RIS)-assisted symbiotic radio (SR), the RIS acts as a secondary transmitter by modulating its information bits over the incident primary sign…
Deep Reinforcement Learning for Distributed Dynamic Coordinated Beamforming in Massive MIMO Cellular Networks
Jungang Ge, Ying-Chang Liang, Liao Zhang +2
To accommodate the explosive wireless traffics, massive multiple-input multiple-output (MIMO) is regarded as one of the key enabling technologies for next-generation communication…