Channel estimation for reconfigurable intelligent surface aided massive MIMO system

J Zhang, C Qi, P Li, P Lu - 2020 IEEE 21st International …, 2020 - ieeexplore.ieee.org
The uplink channel estimation for the reconfigurable intelligent surface (RIS) aided massive
multiple-input multipleoutput (MIMO) system is investigated. By changing the phase matrix of …

[PDF][PDF] Distributed Multi Distributed Multi-Cell Multi Cell Multi-User MISO User MISO Downlink Beamforming via Deep Reinforcement Learning

H JIA, Z HE, W TAN, H RUI, W LIN - ZTE COMMUNICATIONS, 2022 - zte.com.cn
The sum rate maximization beamforming problem for a multi-cell multi-user multiple-input
single-output interference channel (MISO-IC) system is considered. Conventionally, the …