Seminar: Beamforming Design and Channel Estimation for Reconfigurable Intelligent Surface-Aided Wireless Systems
Reconfigurable intelligent surface (RIS), one of the key enablers for the sixth-generation (6G) mobile communication networks, is considered by designers to smartly reconfigure the wireless propagation environment in a controllable and programmable manner. Specifically, a RIS consists of a large number of low-cost and passive reflective elements (REs) without radio frequency chains. The system gain of RIS wireless systems can be achieved by adjusting the phase shifts and amplitudes of the REs so that the desired signals can be added constructively at the receiver. However, a RIS typically has limited signal processing capability and cannot perform active transmitting/receiving in general, which leads to new challenges in the physical layer design of RIS wireless systems. Specifically, this talk will provide the methods to solve two dominant challenges in the RIS-aided wireless systems, which are channel estimation and joint active and passive beamforming design.
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- London, Ontario
- Canada
- Starts 21 April 2022 03:00 PM UTC
- Ends 27 April 2022 03:00 PM UTC
- No Admission Charge