@inproceedings{bcd867bfd09d411d9bc7459cb682a605,
title = "Reconfigurable intelligent surface for MISO systems with proportional rate constraints",
abstract = "This paper investigates the spectral efficiency (SE) in reconfigurable intelligent surface (RIS)-aided multiuser multiple-input single-output (MISO) systems, where RIS can reconFigure the propagation environment via a large number of controllable and intelligent phase shifters. In order to explore the SE performance with user proportional fairness for such a system, an optimization problem is formulated to maximize the SE by jointly considering the power allocation at the base station (BS) and phase shift at the RIS, under nonlinear proportional rate fairness constraints. To solve the non-convex optimization problem, an effective solution is developed, which capitalizes on an iterative algorithm with closed-form expressions, i.e., alternatively optimizing the transmit power at the BS and the reflecting phase shift at the RIS. Numerical simulations are provided to validate the theoretical analysis and assess the performance of the proposed alternative algorithm.",
keywords = "fairness, phase shift, proportional rate constraint, Reconfigurable intelligent surface (RIS), transmit power",
author = "Yulan Gao and Chao Yong and Zehui Xiong and Dusit Niyato and Yue Xiao and Jun Zhao",
year = "2021",
month = jan,
day = "25",
doi = "10.1109/ICC40277.2020.9148766",
language = "English",
series = "IEEE International Conference on Communications",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2020 IEEE International Conference on Communications, ICC 2020 - Proceedings",
address = "United States",
note = "2020 IEEE International Conference on Communications, ICC 2020 ; Conference date: 07-06-2020 Through 11-06-2020",
}