复旦大学数字信号处理与传输实验室的肖戈川同学的论文Average Rate Approximation and Maximization for RIS-Assisted Multi-user MISO System，被IEEE Wireless Communications Letters 录用

论文摘要：In this letter, we investigate a reconfigurable intelligent surface (RIS) assisted downlink multi-user multiple-input single-output (MISO) system. We derive the approximations of average rate of user equipments (UEs) under proper assumptions, and reveal the relations between average rates and system parameters. Furthermore, a RIS configuration algorithm is proposed to improve the average sum rate with low complexity by exploiting the approximation of average rate and statistical channel state information (CSI). The rationality of the assumptions, the tightness of the approximations and the effectiveness of the proposed algorithm are validated by numerical results.

论文作者：Gechuan Xiao, Tao Yang, Chongwen Huang, Xiaofeng Wu, Hui Feng, Bo Hu