… the hybrid activepassive RIS, we consider in this work hybrid RIS-aided UAV communications
systems. The hybrid RIS … The deployment of the hybrid RIS benefits the UAV systems in the …

… In this work, we deploy the hybrid active-passive RIS to … hybrid active-passive RIS architecture
to enhance the performance of multi-user MISO systems. In the hybrid RIS, very few active …

… hybrid active-passive RISassisted ISAC system with inaccurate target location information.
Under the hybrid-RIS … BS and the RIS active elements, as well as the hybrid RIS noise power …

… Obviously, introducing more RF chains at RIS and increasing training overhead can bring …
for two different RIS architectures and find that passive RIS is superior to its hybrid counterpart. …

… active or fully passive RIS, we propose a novel hybrid RIS in which reflecting units can flexibly
switch between active and passive … maximum power of the RIS, the minimum computation …

… of RIS elements N for both passive RISs and active RISs in … an active RIS aided system
compared to a passive RIS aided … the passive RIS comparable to that achieved by the active RIS…

… This approach enables us to adjust the number of active REs… novel hybrid RIS structures
that employ the SC-active RIS … the FC-active/passive or the proposed hybrid RIS architectures, …

… composed of both active and passive reflecting elements has recently emerged, which can
… RIS-induced multiplicative path loss. In this paper, we investigate a hybrid active-passive RIS …

… the RIS employ low-resolution phase shifters (PSs) for practical implementation. Our goal is
to design active hybrid beamforming and passive RIS … the passive RIS reflection and hybrid …

… Then, we propose a SIC-based joint hybrid and passive beamforming algorithm to solve …
optimize the hybrid beamforming matrix at the BS and the passive beamforming at the RIS for …