4 papers
Over-the-Air Modulation for RIS-assisted Symbiotic Radios: Design, Analysis, and Optimization
Hu Zhou, Ying-Chang Liang, Chau Yuen
In reconfigurable intelligent surface (RIS)-assisted symbiotic radio (SR), an RIS is exploited to assist the primary system and to simultaneously operate as a secondary transmitter…
Power-Aware Sparse Reflect Beamforming in Active RIS-aided Interference Channels
Ruizhe Long, Hu Zhou, Ying-Chang Liang
Active reconfigurable intelligent surface (RIS) has attracted significant attention in wireless communications, due to its reflecting elements (REs) capable of reflecting incident…
Assistance-Transmission Tradeoff for RIS-assisted Symbiotic Radios
Hu Zhou, Qianqian Zhang, Ying-Chang Liang +1
This paper studies the reconfigurable intelligent surface (RIS)-assisted symbiotic radio (SR) system, where an RIS acts as a secondary transmitter to transmit its information by le…
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…