期刊
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
卷 69, 期 4, 页码 4498-4502出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TVT.2020.2973073
关键词
Reconfigurable intelligent surfaces assisted communications; limited phase shifts; performance analysis
资金
- National Natural Science Foundation of China [61625101, 61829101, 61941101]
- US Multidisciplinary research program of the University Research Initiative Air Force Office of Scientific Research MURI [18RT0073]
- National Science Foundation [EARS-1839818, CNS1717454, CNS-1731424, CNS-1702850, CNS-1646607]
Reconfigurable intelligent surface (RIS) has drawn a great attention worldwide as it can create favorable propagation conditions by controlling the phase shifts of the reflected signals at the surface to enhance the communication quality. However, the practical RIS only has limited phase shifts, which will lead to the performance degradation. In this paper, we evaluate the performance of an uplink RIS assisted communication system by giving an approximation of the achievable data rate, and investigate the effect of limited phase shifts on the data rate. In particular, we derive the required number of phase shifts under a data rate degradation constraint. Numerical results verify our analysis.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据