27 citations · 77 across the 15 of their papers we have counts for
23 papers
On the Capacity Region of Additive-Multiplicative MAC with Heterogeneous Input Constraints
Qianqian Zhang, Ying-Chang Liang
This paper characterizes the capacity region of a two-user additive-multiplicative multiple access channel (AM-MAC) under heterogeneous input constraints. This model captures the f…
Hierarchical Cognitive Spectrum Sharing in Space-Air-Ground Integrated Networks
Zizhen Zhou, Qianqian Zhang, Jungang Ge +1
In space-air-ground integrated networks (SAGINs), cognitive spectrum sharing has been regarded as a promising solution to improve spectrum efficiency by enabling a secondary networ…
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…
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…
On the Capacity Region of Reconfigurable Intelligent Surface Assisted Symbiotic Radios
Qianqian Zhang, Hu Zhou, Ying-Chang Liang +3
In this paper, we are interested in a reconfigurable intelligent surface (RIS)-assisted symbiotic radio (SR) system, where an RIS assists a primary transmission by passive beamform…