PHY-Layer Design Challenges in Reconfigurable Intelligent Surface Aided 6G Wireless Networks
PHY-Layer Design Challenges in Reconfigurable Intelligent Surface Aided 6G Wireless Networks
Hang Liu,Xiaojun Yuan,Y. Zhang
2021 · DOI: 10.1007/978-3-030-72777-2_5
Computer Communications and Networks · 0 Citations
TLDR
Two state-of-the-art approaches for estimating the cascaded transmitter-RIS and RIS-receiver channels by exploiting channel structural features in RIS-aided systems are illustrated and open issues in RIS channel estimation are discussed.