Robust beamforming design for RIS-aided cell-free systems with CSI uncertainties and capacity-limited backhaul

• Main Authors: Yao, Jiacheng, Xu, Jindan, Xu, Wei, Ng, Derrick Wing Kwan, Yuen, Chau, You, Xiaohu
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Electrical and electronic engineering; Robust Beamforming Design; Capacity-Limited Backhaul
• Online Access: https://hdl.handle.net/10356/172080
• Institution: Nanyang Technological University

In this paper, we consider the robust beamforming design in a reconfigurable intelligent surface (RIS)-aided cell-free (CF) system considering the channel state information (CSI) uncertainties of both the direct channels and cascaded channels at the transmitter with capacity-limited backhaul. We joi...